The regional reality
Access to diagnosis varies by region. The waitlist doesn't.
Registered
88,175Children registered
Total in the Ontario Autism Program queue
CBC FOI Jan 2026
Funded
20,666Have active funding
Just 23.4% of registered children
CBC FOI Jan 2026
Waiting
67,509Still waiting
Registered. Diagnosed. Un-funded.
CBC FOI Jan 2026
Verified — CBC FOI Jan 2026
| Metric | Value |
|---|---|
| Children registered | 88,175 |
| Have active funding | 20,666 |
| Still waiting | 67,509 |
Autism spectrum disorder (ASD) is diagnosed using the DSM-5 criteria, which require persistent deficits in social communication and social interaction, alongside restricted, repetitive patterns of behaviour or interests. The assessment typically involves:
Qualified diagnosticians include registered psychologists, child psychiatrists, developmental paediatricians, and in some cases, clinical teams with multiple professionals. Canada does not have a single national diagnostic standard — each province governs its own health professions and assessment pathways.
See our autism diagnosis guide for a step-by-step overview of the process.
Ontario has two primary pathways for autism diagnosis:
An Ontario autism diagnosis is required to register for the Ontario Autism Program (OAP). See our Ontario-specific autism diagnosis guide and OAP eligibility information.
British Columbia has invested in Autism Spectrum Disorder diagnostic hubs in some regions to improve access. Key points:
Alberta's diagnostic landscape includes both hospital-based and community pathways:
Quebec's autism diagnostic system operates through its public health network:
Across Atlantic Canada, the Prairie provinces, and Northern territories, autism diagnostic access varies considerably:
Receiving an autism diagnosis — for your child or yourself — is an important step, but what comes next varies by province. In Ontario, the immediate priority is OAP registration if your child is under 18. Key next steps:
Autism is diagnosed in Canada through a comprehensive developmental assessment conducted by a qualified professional — typically a psychologist, developmental paediatrician, or psychiatrist. The assessment evaluates communication, social interaction, behaviour patterns, and developmental history. Most provinces follow the DSM-5 criteria for autism spectrum disorder. There is no single medical test for autism; diagnosis relies on behavioural observation and caregiver history.
Wait times for autism assessment vary dramatically by province and pathway. In Ontario, public diagnostic pathways through children's hospitals can take 2 to 5 years. Private assessment is faster but costly. British Columbia has regionalized diagnostic hubs with varying wait times. Alberta offers some faster pathways through pediatric clinics. In general, rural and northern communities face the longest waits across all provinces.
Private autism assessments in Canada typically cost between $1,500 and $5,000, depending on the province and the qualifications of the assessor. In Ontario, a comprehensive psychological assessment for autism diagnosis often costs $2,000-$4,000. Public assessments through hospitals or publicly funded clinics are covered by provincial health insurance but involve significant wait times.
Public autism assessments through children's hospitals and publicly funded clinics are generally covered by provincial health insurance. However, private psychological assessments are not covered by OHIP in Ontario or most provincial health plans. Some extended health insurance plans through employers cover part of the cost of psychological assessments — check your plan details.
In Ontario, families can be referred through their family doctor or paediatrician to a children's hospital or regional assessment centre. For faster access, private psychological clinics in most cities offer autism assessments. Autism Ontario's resource directory (autismontario.com) lists assessment providers by region. In other provinces, contact your provincial autism organization or ask for a referral from your primary care provider.
Verified Facts
Evidence supports autism screening and intervention commencing in the first 2 years of life — earlier identification directly enables earlier intervention during the highest neural plasticity window
1 in 50 — According to the 2019 Canadian Health Survey on Children and Youth, about children and youth aged 1 to 17 in Canada had an autism diagnosis
WHO recommends accessible, community-based early interventions for children with autism — timely evidence-based psychosocial interventions improve communication and social engagement
88,175 — children are registered in the Ontario Autism Program
23.4% — Only 20,666 children have active funding agreements () — less than one in four