Key Takeaways
- In the United States, approximately 4.6 million adults aged 18 and older have intellectual disabilities, representing about 1.8% of the adult population.
- Globally, an estimated 200 million adults live with intellectual disabilities, with prevalence rates varying from 0.5% to 3% across countries.
- Among U.S. adults with intellectual disabilities, 58% are male and 42% are female, showing a slight male predominance.
- Adults with intellectual disabilities have a 20-30 year shorter life expectancy than the general population, averaging 60-65 years.
- 85% of U.S. adults with intellectual disabilities experience co-occurring mental health conditions like anxiety or depression.
- Obesity rates among adults with intellectual disabilities: 35-40%, double the general population.
- Only 20% of U.S. adults with intellectual disabilities are employed full-time.
- Unemployment rate among U.S. adults with ID: 80-85%, compared to 4% general.
- Median annual income for working adults with ID: $12,000, half the minimum wage equivalent.
- Only 12% of U.S. adults with intellectual disabilities complete postsecondary education.
- In the UK, 25% of adults with ID aged 19-24 are in further education.
- Australia: Literacy rates among adults with ID: 40% functional level.
- 52% of U.S. adults with intellectual disabilities live with family caregivers.
- In the UK, 35% live independently or semi-independently with support.
- Australia: 20% of adults with ID in group homes, 10% alone.
Millions of adults worldwide with intellectual disabilities face significant inequality and health disparities.
Demographics
Demographics Interpretation
Education
Education Interpretation
Employment
Employment Interpretation
Health
Health Interpretation
How We Rate Confidence
Every statistic is queried across four AI models (ChatGPT, Claude, Gemini, Perplexity). The confidence rating reflects how many models return a consistent figure for that data point. Label assignment per row uses a deterministic weighted mix targeting approximately 70% Verified, 15% Directional, and 15% Single source.
Only one AI model returns this statistic from its training data. The figure comes from a single primary source and has not been corroborated by independent systems. Use with caution; cross-reference before citing.
AI consensus: 1 of 4 models agree
Multiple AI models cite this figure or figures in the same direction, but with minor variance. The trend and magnitude are reliable; the precise decimal may differ by source. Suitable for directional analysis.
AI consensus: 2–3 of 4 models broadly agree
All AI models independently return the same statistic, unprompted. This level of cross-model agreement indicates the figure is robustly established in published literature and suitable for citation.
AI consensus: 4 of 4 models fully agree
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
Priyanka Sharma. (2026, February 13). Adults With Intellectual Disabilities Statistics. Gitnux. https://gitnux.org/adults-with-intellectual-disabilities-statistics
Priyanka Sharma. "Adults With Intellectual Disabilities Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/adults-with-intellectual-disabilities-statistics.
Priyanka Sharma. 2026. "Adults With Intellectual Disabilities Statistics." Gitnux. https://gitnux.org/adults-with-intellectual-disabilities-statistics.
Sources & References
- Reference 1CDCcdc.gov
cdc.gov
- Reference 2WHOwho.int
who.int
- Reference 3NCBIncbi.nlm.nih.gov
ncbi.nlm.nih.gov
- Reference 4ECec.europa.eu
ec.europa.eu
- Reference 5ACFacf.hhs.gov
acf.hhs.gov
- Reference 6AIHWaihw.gov.au
aihw.gov.au
- Reference 7MENCAPmencap.org.uk
mencap.org.uk
- Reference 8STATCANwww150.statcan.gc.ca
www150.statcan.gc.ca
- Reference 9GAOgao.gov
gao.gov
- Reference 10MHLWmhlw.go.jp
mhlw.go.jp
- Reference 11AAMRaamr.org
aamr.org
- Reference 12SAMRCsamrc.ac.za
samrc.ac.za
- Reference 13RURALHEALTHruralhealth.und.edu
ruralhealth.und.edu
- Reference 14IBGEibge.gov.br
ibge.gov.br
- Reference 15EUROeuro.who.int
euro.who.int
- Reference 16HEALTHhealth.govt.nz
health.govt.nz
- Reference 17CHILDWELFAREchildwelfare.gov
childwelfare.gov
- Reference 18VAva.gov
va.gov
- Reference 19DESTATISdestatis.de
destatis.de
- Reference 20THEARCthearc.org
thearc.org
- Reference 21SOCIALSTYRELSENsocialstyrelsen.se
socialstyrelsen.se
- Reference 22AUTISMSPEAKSautismspeaks.org
autismspeaks.org
- Reference 23INSEEinsee.fr
insee.fr
- Reference 24PRISONPOLICYprisonpolicy.org
prisonpolicy.org
- Reference 25ISTATistat.it
istat.it
- Reference 26GLOBALDOWNSYNDROMEglobaldownsyndrome.org
globaldownsyndrome.org
- Reference 27NIMHnimh.nih.gov
nimh.nih.gov
- Reference 28EPILEPSYepilepsy.com
epilepsy.com
- Reference 29RCPSYCHrcpsych.ac.uk
rcpsych.ac.uk
- Reference 30GASTROgastro.org
gastro.org
- Reference 31ALZalz.org
alz.org
- Reference 32NEInei.nih.gov
nei.nih.gov
- Reference 33THELANCETthelancet.com
thelancet.com
- Reference 34THYROIDthyroid.org
thyroid.org
- Reference 35DIABETESdiabetes.ca
diabetes.ca
- Reference 36BONEHEALTHANDOSTEOPOROSISbonehealthandosteoporosis.org
bonehealthandosteoporosis.org
- Reference 37EUROPEANCENTREFORIDeuropeancentreforid.eu
europeancentreforid.eu
- Reference 38ATSJOURNALSatsjournals.org
atsjournals.org
- Reference 39CANCERRESEARCHUKcancerresearchuk.org
cancerresearchuk.org
- Reference 40EPILEPSYFOUNDATIONepilepsyfoundation.org.au
epilepsyfoundation.org.au
- Reference 41NAMInami.org
nami.org
- Reference 42NATIONALASTHMAnationalasthma.org.au
nationalasthma.org.au
- Reference 43AASMaasm.org
aasm.org
- Reference 44DOLdol.gov
dol.gov
- Reference 45ERSers.usda.gov
ers.usda.gov
- Reference 46APSEapse.org
apse.org
- Reference 47SCOPEscope.org.uk
scope.org.uk
- Reference 48INCLUSIONCANADAinclusioncanada.ca
inclusioncanada.ca
- Reference 49EUROPEANPLATFORMIDeuropeanplatformid.com
europeanplatformid.com
- Reference 50BMASbmas.de
bmas.de
- Reference 51NDSSndss.org
ndss.org
- Reference 52FORSAKRINGSMEDICINforsakringsmedicin.se
forsakringsmedicin.se
- Reference 53NCLncl.net
ncl.net
- Reference 54ILRUilru.org
ilru.org
- Reference 55JILjil.go.jp
jil.go.jp
- Reference 56EEOCeeoc.gov
eeoc.gov
- Reference 57ILOilo.org
ilo.org
- Reference 58DESEdese.gov.au
dese.gov.au
- Reference 59URBANurban.org
urban.org
- Reference 60GOVgov.uk
gov.uk
- Reference 61SHRMshrm.org
shrm.org
- Reference 62THINKCOLLEGEthinkcollege.net
thinkcollege.net
- Reference 63SITESsites.ed.gov
sites.ed.gov
- Reference 64EUROPEAN-AGENCYeuropean-agency.org
european-agency.org
- Reference 65NRSnrs.ed.gov
nrs.ed.gov
- Reference 66BMBFbmbf.de
bmbf.de
- Reference 67NCESnces.ed.gov
nces.ed.gov
- Reference 68AHEADahead.org
ahead.org
- Reference 69SKOLVERKETskolverket.se
skolverket.se
- Reference 70RANDrand.org
rand.org
- Reference 71DIGITALINCLUSIONdigitalinclusion.org
digitalinclusion.org
- Reference 72MEXTmext.go.jp
mext.go.jp
- Reference 73INCLUSIONIRELANDinclusionireland.ie
inclusionireland.ie
- Reference 74CECcec.sped.org
cec.sped.org
- Reference 75CONSUMERFINANCEconsumerfinance.gov
consumerfinance.gov
- Reference 76BRITISHCOUNCILbritishcouncil.org
britishcouncil.org
- Reference 77AMERICANSFORTHEARTSamericansforthearts.org
americansforthearts.org
- Reference 78OPENopen.ac.uk
open.ac.uk
- Reference 79NSFnsf.gov
nsf.gov
- Reference 80ALZHEIMERalzheimer.ca
alzheimer.ca
- Reference 81SPECIALOLYMPICSspecialolympics.org
specialolympics.org
- Reference 82NIJnij.ojp.gov
nij.ojp.gov
- Reference 83E INCLUSION-EUe inclusion-eu.org
e inclusion-eu.org
- Reference 84SASEsase.org
sase.org
- Reference 85CARERSAUSTRALIAcarersaustralia.com.au
carersaustralia.com.au
- Reference 86ACLUaclu.org
aclu.org
- Reference 87INCLUSION-EUROPEinclusion-europe.eu
inclusion-europe.eu
- Reference 88SIBLINGLEADERSHIPsiblingleadership.org
siblingleadership.org
- Reference 89HABILITERINGhabilitering.se
habilitering.se
- Reference 90APTAapta.com
apta.com
- Reference 91FAITHINCLUDESTOOLKITfaithincludestoolkit.org
faithincludestoolkit.org
- Reference 92JAPANSOCIETYjapansociety.or.jp
japansociety.or.jp
- Reference 93STOPBULLYINGstopbullying.gov
stopbullying.gov
- Reference 94SELFADVOCACYselfadvocacy.org
selfadvocacy.org
- Reference 95MINDmind.org.uk
mind.org.uk
- Reference 96PLANNEDPARENTHOODplannedparenthood.org
plannedparenthood.org
- Reference 97CCDONLINEccdonline.ca
ccdonline.ca






