89,799
Province-wide registered
MCCSS bi-weekly OAP Core Clinical Services progress reports (to Mar 4, 2026), obtained under Freedom of Information (release CSS2026-0749); corroborated by CBC News.

Regional Autism Services
69,166
children waiting
5+
year avg wait
~14,359
in Mississauga
Families in Mississauga face Ontario's province-wide autism crisis: 89,799 children are registered in the Ontario Autism Program but only 23% receive core clinical services. The average wait for funding is 5+ years. An estimated 14,359 autistic children live in Mississauga.
89,799
Province-wide registered
MCCSS bi-weekly OAP Core Clinical Services progress reports (to Mar 4, 2026), obtained under Freedom of Information (release CSS2026-0749); corroborated by CBC News.
23%
Receiving core services
MCCSS bi-weekly OAP Core Clinical Services progress reports (to Mar 4, 2026), obtained under Freedom of Information (release CSS2026-0749); corroborated by CBC News.
5+ years
Estimated wait time
OAC Community Survey 2025
14,359
Est. autistic children in Mississauga
Public Health Agency of Canada, 2019 Canadian Health Survey on Children and Youth
Provincial Data
Data Visualized
Source: MCCSS bi-weekly OAP Core Clinical Services progress reports (to Mar 4, 2026), obtained under Freedom of Information (release CSS2026-0749); corroborated by CBC News., as of March 2026
Scale Comparison
children registered with OAP
est. autistic children (1 in 50)
only 23% of registered
Who Is Served?
Key Numbers
69,166
children on the waitlist province-wide
5+
year average wait for core services (MCCSS FOI · Mar 2026)
~14,359
estimated autistic children in Mississauga
Diagnostic Services
Getting a formal diagnosis is the first step to accessing OAP funding. These are the primary diagnostic hubs serving Mississauga families.
Therapy Providers
OAP-registered providers deliver core clinical services. Private providers are also available for families who cannot wait.
Education & IEP Rights
Mississauga families attend schools under the Peel District School Board. Understanding your child's educational rights, including IEPs (Individual Education Plans) and IPRCs, is vital while waiting for clinical services.
Explore the Region
Explore autism services, provider information, and waitlist context for Mississauga and nearby communities.
Nearest OAP access point: Mississauga OAP Regional Office
Diagnostic hub
Ontario’s official OAP Provider List records 29 organization entries with a Mississauga address. 27 of them have at least one clinician recorded as accepting new clients. This is a snapshot of the official list taken on July 17, 2026 — availability changes often. End The Wait Ontario does not verify, certify or endorse individual providers. Confirm directly with a provider before booking.
Some organizations appear on the official list under more than one name, so the number of entries can be higher than the number of distinct organizations.
On the official OAP list — not independently verified by End The Wait Ontario.
ABA Therapy · Speech Therapy · Occupational Therapy
ABA Therapy · Behavioural Therapy
ABA Therapy · Behavioural Therapy
ABA Therapy · Behavioural Therapy · Speech Therapy
ABA Therapy · Behavioural Therapy
ABA Therapy · Behavioural Therapy
Speech Therapy
ABA Therapy · Behavioural Therapy
A legal document outlining your child's learning needs, supports, and goals within the Ontario curriculum.
The formal process to identify your child as exceptional and determine appropriate classroom placement.
ErinoakKids is the lead OAP agency for Peel, Halton, and Dufferin. Assessment waits vary. OAP-funded core clinical services still follow the provincial 5+ year wait. ErinoakKids also runs Urgent Response Services for Peel families.
Yes, Mississauga has a growing network of private ABA, speech, and occupational therapy clinics — contact providers directly for current rates. Many parents on the OAP waitlist pay privately during the critical 0–6 developmental window, then transition to OAP-funded services when their invitation arrives.
ErinoakKids' Mississauga facility provides public autism assessments. Trillium Health Partners (THP) also offers developmental assessments. Private assessments are also available in Mississauga and the broader GTA — contact providers directly for current pricing and wait times.
Peel District School Board (PDSB) provides IEP services, IPRC determinations, and Educational Assistant support for autistic students. PDSB operates dedicated ASD classes at select schools and integrated support at others. Parents can request an in-school team meeting to initiate assessment for special education services.
Education
Autistic children in Mississauga are served by Peel District School Board. If your child attends a school in this board, you have specific rights to IEP accommodations, EA support, and accessible programming.
Autism services, providers & waitlist info for Toronto
Autism services, providers & waitlist info for Markham
Autism services, providers & waitlist info for Brampton
Autism services, providers & waitlist info for Vaughan
Costs, coverage & access
SLP services & waitlists
Province-wide numbers
Resources & interim supports
How long do families wait for Ontario autism services?
Ontario autism wait times for core clinical services now exceed 5+ years (2026). Most families currently receiving invitations registered in 2020 or earlier. This delay far exceeds the sensitive early intervention window recommended by developmental specialists.
Source: OAC FOI Mar 2026, FAO Report 2024 · Verify Link
Is the Ontario Autism Program underfunded?
Yes. The Financial Accountability Office (FAO) determined that $1.35 billion annually is needed to serve all registered children at 2018-19 service levels. The 2026-27 Ontario Budget allocated $965 million, leaving an estimated $385M+ annual shortfall. This gap is the primary driver of the perpetual 89,799+ child waitlist.
Source: Financial Accountability Office of Ontario [FAO] · Verify Link
How do autism wait times vary by region in Ontario?
Ontario autism wait times vary by region, but the current verified waitlist count is province-wide: 69,166 children were waiting for funding as of March 2026. Northern Ontario families face fewer nearby providers and longer travel distances, while Ottawa, London, Toronto/GTA, and other regions still report multi-year waits.
Source: OAC FOI March 2026 & regional family reports · Verify Link
Written by Spencer Carroll
Founder & Autism Advocate