GARC / Global context
GARC Global Autism Atlas
Explore autism estimates, national evidence and research gaps. Understand what the data describe—and what they cannot tell us.
2021 global context and the newer source-hosted series are separate editions. Do not combine them into one trend. Geographic coverage is not the number of independent national studies.
Explore the world
Choose an indicator, then explore a country. Blue is descriptive: it is not a ranking of healthcare quality or national risk.
Source-hosted global visualisation
Open source chart ↗Interactive charts are hosted by Our World in Data and attributed to IHME. GARC does not redistribute restricted underlying country data. Use the chart’s Map, Table and country controls; follow the source link if an embedded view is blocked.
A country prevalence heat map is not republished in this release: reusable country-level data have not been approved. The reference map below shows evidence availability, and the source-hosted chart shows estimated counts.
External charts use the publisher’s English interface and connect to Our World in Data, subject to its privacy practices.Country & territory explorer
Select any geography on the reference map or in the country selector. Countries without a reviewed record remain available; this does not establish that research is absent. The 250 geographic records are not 250 approved modeled estimates.
This reference map shows curated records, not numeric prevalence. Unreviewed countries do not mean zero prevalence or no research. Borders are geographic references, not a statement of political status.
Compare up to three countries
Compare one model edition, indicator and year at a time. National surveys with different age groups, definitions or methods are not pooled or ranked. Modeled comparisons are displayed by the source provider.
Select countries to start a source-hosted comparison. No missing country value is treated as zero.
Accessible country reference table 250
| Select a country or territory | Geographic region | National / subnational observational evidence | Modeled indicator access |
|---|---|---|---|
| Afghanistan | Asia | No reviewed national source in this release | Open source chart |
| Åland Islands | Europe | No reviewed national source in this release | Open source chart |
| Albania | Europe | No reviewed national source in this release | Open source chart |
| Algeria | Africa | No reviewed national source in this release | Open source chart |
| American Samoa | Oceania | No reviewed national source in this release | Open source chart |
| Andorra | Europe | No reviewed national source in this release | Open source chart |
| Angola | Africa | No reviewed national source in this release | Open source chart |
| Anguilla | Americas | No reviewed national source in this release | Open source chart |
| Antarctica | Antarctic | No reviewed national source in this release | Open source chart |
| Antigua and Barbuda | Americas | No reviewed national source in this release | Open source chart |
| Argentina | Americas | No reviewed national source in this release | Open source chart |
| Armenia | Asia | No reviewed national source in this release | Open source chart |
| Aruba | Americas | No reviewed national source in this release | Open source chart |
| Australia | Oceania | Reviewed national source | Open source chart |
| Austria | Europe | No reviewed national source in this release | Open source chart |
| Azerbaijan | Asia | No reviewed national source in this release | Open source chart |
| Bahamas | Americas | No reviewed national source in this release | Open source chart |
| Bahrain | Asia | No reviewed national source in this release | Open source chart |
| Bangladesh | Asia | No reviewed national source in this release | Open source chart |
| Barbados | Americas | No reviewed national source in this release | Open source chart |
| Belarus | Europe | No reviewed national source in this release | Open source chart |
| Belgium | Europe | No reviewed national source in this release | Open source chart |
| Belize | Americas | No reviewed national source in this release | Open source chart |
| Benin | Africa | No reviewed national source in this release | Open source chart |
| Bermuda | Americas | No reviewed national source in this release | Open source chart |
| Bhutan | Asia | No reviewed national source in this release | Open source chart |
| Bolivia | Americas | No reviewed national source in this release | Open source chart |
| Bosnia and Herzegovina | Europe | No reviewed national source in this release | Open source chart |
| Botswana | Africa | No reviewed national source in this release | Open source chart |
| Bouvet Island | Antarctic | No reviewed national source in this release | Open source chart |
| Brazil | Americas | Reviewed national source | Open source chart |
| British Indian Ocean Territory | Africa | No reviewed national source in this release | Open source chart |
| British Virgin Islands | Americas | No reviewed national source in this release | Open source chart |
| Brunei | Asia | No reviewed national source in this release | Open source chart |
| Bulgaria | Europe | No reviewed national source in this release | Open source chart |
| Burkina Faso | Africa | No reviewed national source in this release | Open source chart |
| Burundi | Africa | No reviewed national source in this release | Open source chart |
| Cambodia | Asia | No reviewed national source in this release | Open source chart |
| Cameroon | Africa | No reviewed national source in this release | Open source chart |
| Canada | Americas | Reviewed national source | Open source chart |
| Cape Verde | Africa | No reviewed national source in this release | Open source chart |
| Caribbean Netherlands | Americas | No reviewed national source in this release | Open source chart |
| Cayman Islands | Americas | No reviewed national source in this release | Open source chart |
| Central African Republic | Africa | No reviewed national source in this release | Open source chart |
| Chad | Africa | No reviewed national source in this release | Open source chart |
| Chile | Americas | No reviewed national source in this release | Open source chart |
| China | Asia | No reviewed national source in this release | Open source chart |
| Christmas Island | Oceania | No reviewed national source in this release | Open source chart |
| Cocos (Keeling) Islands | Oceania | No reviewed national source in this release | Open source chart |
| Colombia | Americas | No reviewed national source in this release | Open source chart |
| Comoros | Africa | No reviewed national source in this release | Open source chart |
| Congo | Africa | No reviewed national source in this release | Open source chart |
| Cook Islands | Oceania | No reviewed national source in this release | Open source chart |
| Costa Rica | Americas | No reviewed national source in this release | Open source chart |
| Croatia | Europe | No reviewed national source in this release | Open source chart |
| Cuba | Americas | No reviewed national source in this release | Open source chart |
| Curaçao | Americas | No reviewed national source in this release | Open source chart |
| Cyprus | Europe | No reviewed national source in this release | Open source chart |
| Czechia | Europe | No reviewed national source in this release | Open source chart |
| Denmark | Europe | No reviewed national source in this release | Open source chart |
| Djibouti | Africa | No reviewed national source in this release | Open source chart |
| Dominica | Americas | No reviewed national source in this release | Open source chart |
| Dominican Republic | Americas | No reviewed national source in this release | Open source chart |
| DR Congo | Africa | No reviewed national source in this release | Open source chart |
| Ecuador | Americas | No reviewed national source in this release | Open source chart |
| Egypt | Africa | No reviewed national source in this release | Open source chart |
| El Salvador | Americas | No reviewed national source in this release | Open source chart |
| Equatorial Guinea | Africa | No reviewed national source in this release | Open source chart |
| Eritrea | Africa | No reviewed national source in this release | Open source chart |
| Estonia | Europe | No reviewed national source in this release | Open source chart |
| Eswatini | Africa | No reviewed national source in this release | Open source chart |
| Ethiopia | Africa | No reviewed national source in this release | Open source chart |
| Falkland Islands | Americas | No reviewed national source in this release | Open source chart |
| Faroe Islands | Europe | No reviewed national source in this release | Open source chart |
| Fiji | Oceania | No reviewed national source in this release | Open source chart |
| Finland | Europe | No reviewed national source in this release | Open source chart |
| France | Europe | No reviewed national source in this release | Open source chart |
| French Guiana | Americas | No reviewed national source in this release | Open source chart |
| French Polynesia | Oceania | No reviewed national source in this release | Open source chart |
| French Southern and Antarctic Lands | Antarctic | No reviewed national source in this release | Open source chart |
| Gabon | Africa | No reviewed national source in this release | Open source chart |
| Gambia | Africa | No reviewed national source in this release | Open source chart |
| Georgia | Asia | No reviewed national source in this release | Open source chart |
| Germany | Europe | No reviewed national source in this release | Open source chart |
| Ghana | Africa | No reviewed national source in this release | Open source chart |
| Gibraltar | Europe | No reviewed national source in this release | Open source chart |
| Greece | Europe | No reviewed national source in this release | Open source chart |
| Greenland | Americas | No reviewed national source in this release | Open source chart |
| Grenada | Americas | No reviewed national source in this release | Open source chart |
| Guadeloupe | Americas | No reviewed national source in this release | Open source chart |
| Guam | Oceania | No reviewed national source in this release | Open source chart |
| Guatemala | Americas | No reviewed national source in this release | Open source chart |
| Guernsey | Europe | No reviewed national source in this release | Open source chart |
| Guinea | Africa | No reviewed national source in this release | Open source chart |
| Guinea-Bissau | Africa | No reviewed national source in this release | Open source chart |
| Guyana | Americas | No reviewed national source in this release | Open source chart |
| Haiti | Americas | No reviewed national source in this release | Open source chart |
| Heard Island and McDonald Islands | Antarctic | No reviewed national source in this release | Open source chart |
| Honduras | Americas | No reviewed national source in this release | Open source chart |
| Hong Kong | Asia | No reviewed national source in this release | Open source chart |
| Hungary | Europe | No reviewed national source in this release | Open source chart |
| Iceland | Europe | No reviewed national source in this release | Open source chart |
| India | Asia | No reviewed national source in this release | Open source chart |
| Indonesia | Asia | No reviewed national source in this release | Open source chart |
| Iran | Asia | No reviewed national source in this release | Open source chart |
| Iraq | Asia | No reviewed national source in this release | Open source chart |
| Ireland | Europe | No reviewed national source in this release | Open source chart |
| Isle of Man | Europe | No reviewed national source in this release | Open source chart |
| Israel | Asia | No reviewed national source in this release | Open source chart |
| Italy | Europe | No reviewed national source in this release | Open source chart |
| Ivory Coast | Africa | No reviewed national source in this release | Open source chart |
| Jamaica | Americas | No reviewed national source in this release | Open source chart |
| Japan | Asia | No reviewed national source in this release | Open source chart |
| Jersey | Europe | No reviewed national source in this release | Open source chart |
| Jordan | Asia | No reviewed national source in this release | Open source chart |
| Kazakhstan | Asia | No reviewed national source in this release | Open source chart |
| Kenya | Africa | No reviewed national source in this release | Open source chart |
| Kiribati | Oceania | No reviewed national source in this release | Open source chart |
| Kosovo | Europe | No reviewed national source in this release | Open source chart |
| Kuwait | Asia | No reviewed national source in this release | Open source chart |
| Kyrgyzstan | Asia | No reviewed national source in this release | Open source chart |
| Laos | Asia | No reviewed national source in this release | Open source chart |
| Latvia | Europe | No reviewed national source in this release | Open source chart |
| Lebanon | Asia | No reviewed national source in this release | Open source chart |
| Lesotho | Africa | No reviewed national source in this release | Open source chart |
| Liberia | Africa | No reviewed national source in this release | Open source chart |
| Libya | Africa | No reviewed national source in this release | Open source chart |
| Liechtenstein | Europe | No reviewed national source in this release | Open source chart |
| Lithuania | Europe | No reviewed national source in this release | Open source chart |
| Luxembourg | Europe | No reviewed national source in this release | Open source chart |
| Macau | Asia | No reviewed national source in this release | Open source chart |
| Madagascar | Africa | No reviewed national source in this release | Open source chart |
| Malawi | Africa | No reviewed national source in this release | Open source chart |
| Malaysia | Asia | No reviewed national source in this release | Open source chart |
| Maldives | Asia | No reviewed national source in this release | Open source chart |
| Mali | Africa | No reviewed national source in this release | Open source chart |
| Malta | Europe | No reviewed national source in this release | Open source chart |
| Marshall Islands | Oceania | No reviewed national source in this release | Open source chart |
| Martinique | Americas | No reviewed national source in this release | Open source chart |
| Mauritania | Africa | No reviewed national source in this release | Open source chart |
| Mauritius | Africa | No reviewed national source in this release | Open source chart |
| Mayotte | Africa | No reviewed national source in this release | Open source chart |
| Mexico | Americas | No reviewed national source in this release | Open source chart |
| Micronesia | Oceania | No reviewed national source in this release | Open source chart |
| Moldova | Europe | No reviewed national source in this release | Open source chart |
| Monaco | Europe | No reviewed national source in this release | Open source chart |
| Mongolia | Asia | No reviewed national source in this release | Open source chart |
| Montenegro | Europe | No reviewed national source in this release | Open source chart |
| Montserrat | Americas | No reviewed national source in this release | Open source chart |
| Morocco | Africa | No reviewed national source in this release | Open source chart |
| Mozambique | Africa | No reviewed national source in this release | Open source chart |
| Myanmar | Asia | No reviewed national source in this release | Open source chart |
| Namibia | Africa | No reviewed national source in this release | Open source chart |
| Nauru | Oceania | No reviewed national source in this release | Open source chart |
| Nepal | Asia | No reviewed national source in this release | Open source chart |
| Netherlands | Europe | Reviewed national source | Open source chart |
| New Caledonia | Oceania | No reviewed national source in this release | Open source chart |
| New Zealand | Oceania | No reviewed national source in this release | Open source chart |
| Nicaragua | Americas | No reviewed national source in this release | Open source chart |
| Niger | Africa | No reviewed national source in this release | Open source chart |
| Nigeria | Africa | No reviewed national source in this release | Open source chart |
| Niue | Oceania | No reviewed national source in this release | Open source chart |
| Norfolk Island | Oceania | No reviewed national source in this release | Open source chart |
| North Korea | Asia | No reviewed national source in this release | Open source chart |
| North Macedonia | Europe | No reviewed national source in this release | Open source chart |
| Northern Mariana Islands | Oceania | No reviewed national source in this release | Open source chart |
| Norway | Europe | No reviewed national source in this release | Open source chart |
| Oman | Asia | No reviewed national source in this release | Open source chart |
| Pakistan | Asia | No reviewed national source in this release | Open source chart |
| Palau | Oceania | No reviewed national source in this release | Open source chart |
| Palestine | Asia | No reviewed national source in this release | Open source chart |
| Panama | Americas | No reviewed national source in this release | Open source chart |
| Papua New Guinea | Oceania | No reviewed national source in this release | Open source chart |
| Paraguay | Americas | No reviewed national source in this release | Open source chart |
| Peru | Americas | No reviewed national source in this release | Open source chart |
| Philippines | Asia | No reviewed national source in this release | Open source chart |
| Pitcairn Islands | Oceania | No reviewed national source in this release | Open source chart |
| Poland | Europe | No reviewed national source in this release | Open source chart |
| Portugal | Europe | No reviewed national source in this release | Open source chart |
| Puerto Rico | Americas | No reviewed national source in this release | Open source chart |
| Qatar | Asia | No reviewed national source in this release | Open source chart |
| Réunion | Africa | No reviewed national source in this release | Open source chart |
| Romania | Europe | No reviewed national source in this release | Open source chart |
| Russia | Europe | No reviewed national source in this release | Open source chart |
| Rwanda | Africa | No reviewed national source in this release | Open source chart |
| Saint Barthélemy | Americas | No reviewed national source in this release | Open source chart |
| Saint Helena, Ascension and Tristan da Cunha | Africa | No reviewed national source in this release | Open source chart |
| Saint Kitts and Nevis | Americas | No reviewed national source in this release | Open source chart |
| Saint Lucia | Americas | No reviewed national source in this release | Open source chart |
| Saint Martin | Americas | No reviewed national source in this release | Open source chart |
| Saint Pierre and Miquelon | Americas | No reviewed national source in this release | Open source chart |
| Saint Vincent and the Grenadines | Americas | No reviewed national source in this release | Open source chart |
| Samoa | Oceania | No reviewed national source in this release | Open source chart |
| San Marino | Europe | No reviewed national source in this release | Open source chart |
| São Tomé and Príncipe | Africa | No reviewed national source in this release | Open source chart |
| Saudi Arabia | Asia | No reviewed national source in this release | Open source chart |
| Senegal | Africa | No reviewed national source in this release | Open source chart |
| Serbia | Europe | No reviewed national source in this release | Open source chart |
| Seychelles | Africa | No reviewed national source in this release | Open source chart |
| Sierra Leone | Africa | No reviewed national source in this release | Open source chart |
| Singapore | Asia | No reviewed national source in this release | Open source chart |
| Sint Maarten | Americas | No reviewed national source in this release | Open source chart |
| Slovakia | Europe | No reviewed national source in this release | Open source chart |
| Slovenia | Europe | No reviewed national source in this release | Open source chart |
| Solomon Islands | Oceania | No reviewed national source in this release | Open source chart |
| Somalia | Africa | No reviewed national source in this release | Open source chart |
| South Africa | Africa | No reviewed national source in this release | Open source chart |
| South Georgia | Antarctic | No reviewed national source in this release | Open source chart |
| South Korea | Asia | No reviewed national source in this release | Open source chart |
| South Sudan | Africa | No reviewed national source in this release | Open source chart |
| Spain | Europe | No reviewed national source in this release | Open source chart |
| Sri Lanka | Asia | No reviewed national source in this release | Open source chart |
| Sudan | Africa | No reviewed national source in this release | Open source chart |
| Suriname | Americas | No reviewed national source in this release | Open source chart |
| Svalbard and Jan Mayen | Europe | No reviewed national source in this release | Open source chart |
| Sweden | Europe | No reviewed national source in this release | Open source chart |
| Switzerland | Europe | No reviewed national source in this release | Open source chart |
| Syria | Asia | No reviewed national source in this release | Open source chart |
| Taiwan | Asia | No reviewed national source in this release | Open source chart |
| Tajikistan | Asia | No reviewed national source in this release | Open source chart |
| Tanzania | Africa | No reviewed national source in this release | Open source chart |
| Thailand | Asia | No reviewed national source in this release | Open source chart |
| Timor-Leste | Asia | No reviewed national source in this release | Open source chart |
| Togo | Africa | No reviewed national source in this release | Open source chart |
| Tokelau | Oceania | No reviewed national source in this release | Open source chart |
| Tonga | Oceania | No reviewed national source in this release | Open source chart |
| Trinidad and Tobago | Americas | No reviewed national source in this release | Open source chart |
| Tunisia | Africa | No reviewed national source in this release | Open source chart |
| Türkiye | Asia | No reviewed national source in this release | Open source chart |
| Turkmenistan | Asia | No reviewed national source in this release | Open source chart |
| Turks and Caicos Islands | Americas | No reviewed national source in this release | Open source chart |
| Tuvalu | Oceania | No reviewed national source in this release | Open source chart |
| Uganda | Africa | No reviewed national source in this release | Open source chart |
| Ukraine | Europe | No reviewed national source in this release | Open source chart |
| United Arab Emirates | Asia | No reviewed national source in this release | Open source chart |
| United Kingdom | Europe | Reviewed national source | Open source chart |
| United States | Americas | Reviewed national source | Open source chart |
| United States Minor Outlying Islands | Americas | No reviewed national source in this release | Open source chart |
| United States Virgin Islands | Americas | No reviewed national source in this release | Open source chart |
| Uruguay | Americas | No reviewed national source in this release | Open source chart |
| Uzbekistan | Asia | No reviewed national source in this release | Open source chart |
| Vanuatu | Oceania | No reviewed national source in this release | Open source chart |
| Vatican City | Europe | No reviewed national source in this release | Open source chart |
| Venezuela | Americas | No reviewed national source in this release | Open source chart |
| Vietnam | Asia | No reviewed national source in this release | Open source chart |
| Wallis and Futuna | Oceania | No reviewed national source in this release | Open source chart |
| Western Sahara | Africa | No reviewed national source in this release | Open source chart |
| Yemen | Asia | No reviewed national source in this release | Open source chart |
| Zambia | Africa | No reviewed national source in this release | Open source chart |
| Zimbabwe | Africa | No reviewed national source in this release | Open source chart |
Sources, methods & interpretation
Reviewed observational evidence
Modeled estimates synthesize multiple sources and assumptions. They are not independent prevalence surveys in every country. Direct national figures may describe diagnosed, reported or administratively identified autism in a defined population. Differences in ascertainment, age, access, diagnostic practice and year limit comparisons. Prevalence is not incidence; rising identified prevalence alone does not establish a causal explanation.
Licensing & source independence
The Atlas links to or embeds publisher-hosted charts rather than copying restricted IHME country data. Geography is Natural Earth / world-atlas; country metadata derives from mledoze/countries (ODbL 1.0), with Arabic display names from Unicode CLDR. GARC’s original editorial descriptions do not imply endorsement or partnership with any source.
The source-hosted chart can be revised independently. Its own metadata takes precedence for dataset edition and units. 2021 summary estimates are retained only as dated context.
Country-level modeled rates, counts and uncertainty intervals are not copied into this release because bulk redistribution permission has not been established. View the attributed source chart. Missing values are never replaced with zero.
Source registry
- WHO Autism fact sheet
2025 fact sheet; global context refers to 2021.
Facts summarized with attribution; WHO text not copied · Source review: 2026-10-14 - GBD 2021 autism analysis
Global 2021 estimates and 95% uncertainty intervals; separate from the newer modeled edition.
Published facts summarized; no bulk country extract · Source review: 2026-10-14 - Our World in Data / IHME
Source-hosted sex-disaggregated modeled population estimates, 1990–2023; IHME 2025 / GBD 2023.
Publisher-hosted embed; underlying IHME data not redistributed · Source review: 2026-10-14 - OWID chart reuse guidance
Chart embedding permission is distinct from third-party raw-data redistribution rights.
Chart embedding allowed with attribution · Source review: 2026-10-14 - IHME non-commercial data agreement
The free agreement excludes for-profit entities. No commercial bulk-data permission is established for this Atlas.
Restricted; links/embeds only · Source review: 2026-10-14 - Natural Earth / world-atlas
Generalised world geography; micro-territories may be shown as selectable points.
Natural Earth public domain; world-atlas ISC · Source review: 2026-10-14 - mledoze/countries metadata
250 geographic records, including territories; a directory count, not an epidemiological dataset count.
ODbL 1.0; derived metadata remains ODbL · Source review: 2026-10-14 - CDC ADDM Network
8-year-old children in 16 ADDM communities; record-based identification. Not a nationally representative US estimate.
Original summary of attributed factual findings; no publisher tables or databases copied · Source review: 2026-10-14 - Public Health Agency of Canada / CHSCY
Children and youth aged 1–17; reported autism diagnosis in the Canadian Health Survey on Children and Youth.
Original summary of attributed factual findings; no publisher tables or databases copied · Source review: 2026-10-14 - Australian Bureau of Statistics / SDAC
All-age survey estimate, 2022; 290,900 people. This survey measure is not a GBD modeled prevalence rate.
Original summary of attributed factual findings; no publisher tables or databases copied · Source review: 2026-10-14 - IBGE / 2022 Census
All-age reported professional diagnosis; preliminary census sample results, approximately 2.4 million people.
Original summary of attributed factual findings; no publisher tables or databases copied · Source review: 2026-10-14 - Statistics Netherlands / CBS
People aged 4+; self- or parent-reported autism. The published table reports 2.5%; the headline rounds to 3%.
Original summary of attributed factual findings; no publisher tables or databases copied · Source review: 2026-10-14 - Northern Ireland Department of Health
Compulsory school-age children in Northern Ireland only; school census. Not a UK-wide estimate.
Original summary of attributed factual findings; no publisher tables or databases copied · Source review: 2026-10-14
A newer reference year does not make a chart directly comparable with another edition. Consult definitions before interpretation.
Source review:
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