Interactive Tool

Cohort Simulator

Illustrative calendar-age scenarios only. This tool does not forecast wait times, clinical outcomes, or individual service access.

Time

Interactive scenarios

Output

Illustrative arithmetic

Privacy

No account required

In short

  • Use hypothetical calendar intervals to see how an age-plus-interval calculation works
  • The scenario labels are illustrative inputs, not current regional or provincial wait estimates
Show all 4 facts
  • The output is not a clinical outcome, waitlist forecast, or individual prediction
  • Confirm current eligibility, intake, and service information with the administering program or provider
Verified: 2026-08-10
Scope: Ontario, Canada

Cohort Simulator

Explore a simple calendar-age scenario. This is an illustrative arithmetic tool, not a clinical model, wait-time forecast, or prediction about an individual child.

2 years old

Timeline (age 0-18)

The timeline is a visualisation of the selected hypothetical calendar interval. It does not measure an intervention window or infer a clinical effect.

Illustrative arithmetic only: A child registered at age 2 will wait until age 7.2, missing 4 of 4 remaining years of early intervention in this hypothetical scenario. The result does not predict clinical outcomes, service access, or what will happen to an individual child.

Method and limits

Read the result as a planning signal

The simulator adds a hypothetical interval to a selected registration age. It is a transparent arithmetic illustration, not a clinical model, wait-time forecast, estimate of a child’s development, or promise about service access.

Data checked 2026-08-10. No names, postal codes, or form responses are collected by this tool.

Take Action

Where the waitlist stands

Families navigating autism services in Ontario face a documented multi-year wait. Here is the Ontario data — and a two-minute way to push back, when you are ready.

See where the waitlist standsEmail Your MPP

Verified References & Sources

Updated:

Government Reports & Data

  • [2023]
    Exclusion of Students With Disabilities — 2023 SurveyVerified FAO Data
    Community Living Ontario • Report • 2023-10-01
    View
  • [2024]
    Inclusion Without Proper Support Is AbandonmentVerified FAO Data
    Elementary Teachers' Federation of Ontario • Report • 2024-06-01
    View
  • [2020]
    Autism ServicesVerified FAO Data
    Financial Accountability Office of Ontario (FAO) • Report • 2020-07-21
    View
  • [2024]
    Ministry of Children, Community and Social Services: Spending Plan ReviewVerified FAO Data
    Financial Accountability Office of Ontario (FAO) • Report • 2024-06-05
    View
  • [2026]
    Ontario Autism Program figures as of May 13, 2026 (MCCSS, released under Freedom of Information to the Ontario Autism Coalition; published in the OAC "OAP At A Glance" update, July 2026)Verified FAO Data
    Ministry of Children, Community and Social Services (Ontario), obtained by the Ontario Autism Coalition • Report • 2026-05-13
    View

Related Resources

Citable source facts(3)Question-and-answer pairs with their source and verification link.

How many children are on the Ontario autism waitlist?

Verified

Latest FOI data shows 91,974 children are registered in the Ontario Autism Program (May 2026), while only 22.5% have active funding agreements. [FOI] An active funding agreement does not mean a child is receiving services; it is an administrative status distinct from service delivery. The Ontario Autism Coalition reported in July 2026 that some families in its community had waited more than five years. That report is not a province-wide average. Last verified: 2026-08-10

Source: Financial Accountability Office of Ontario [FAO] & FOI Data · Verify Link

Why is early intervention critical for autistic children?

Verified

Dawson et al. (2010, Pediatrics; PMID 19948568) demonstrated in an RCT that ESDM (Early Start Denver Model) begun at ages 18–30 months produced significant gains in IQ and adaptive behaviour. Zwaigenbaum et al. (2015, Pediatrics; PMID 26430168) and the Reichow et al. (2018) Cochrane Review (PMID 29742275) support intervention within the first 2 years of life as the highest-plasticity window.

Source: Dawson et al., Pediatrics 2010 (PMID 19948568); Zwaigenbaum et al., Pediatrics 2015 (PMID 26430168); Reichow et al., Cochrane 2018 (PMID 29742275) · Verify Link

What percentage of registered children receive autism services in Ontario?

Verified

Of 91,974 children registered in the Ontario Autism Program (May 13, 2026), only 22.5% are receiving core clinical services funding. The vast majority — approximately 77.5% — remain on the waitlist during their most critical developmental years.

Source: MCCSS FOI via OAC · Mar 2026 · Verify Link

Evidence on this page

The source chain stays visible.

Key claims are paired with their source, evidence tier, and verification date so readers can inspect the public record directly.

Facts3
Sources2

22.5%

Only 20,711 children have active funding agreements (22.5%), less than one in four

Government / peer-reviewedMCCSS FOI via OAC · May 2026Verified 2026-08-10
Last system verification: 2026-08-10. Next scheduled update: 2026-11-05.
View methodologyBrowse every source