Health Region/Public Health Unit
(37 Public Health Units)

Share File Sample¹ Size

Master/Public Use² File Sample Size

Target Sample size³ Cycles 1.1 and 2.1

Algoma

773

812

850

Brant

727

756

810

Bruce / Grey / Owen Sound

820

860

940

Durham

1,324

1,383

1,630

Eastern Ontario

948

982

1,040

Elgin / St. Thomas

708

742

680

Haldimand / Norfolk

699

723

770

Haliburton / Kawartha / Pine Ridge

940

967

950

Halton

1,224

1,257

1,410

Hamilton / Wentworth

1,279

1,326

1,650

Hastings & Prince Edward

868

889

940

Huron²

501

520

590

Kent / Chatham 

1,036

1,059

800

Kingston, Frontenac, Lennox & Addington

876

938

1,010

Lambton

837

866

870

Leeds / Grenville / Lanark

838

901

950

Middlesex / London

1,243

1,282

1,500

Muskoka / Parry Sound

739

763

670

Niagara

1,242

1,275

1,530

North Bay²

936

979

730

Northwestern

678

710

640

Ottawa Carleton

1,810

1,936

2,050

Oxford

686

713

750

Peel

1,748

1,837

2,220

Perth²

694

722

650

Peterborough

819

842

850

Porcupine

738

755

750

Renfrew

702

722

750

Simcoe

1,287

1,338

1,380

Sudbury

961

979

1,080

Thunder Bay

886

959

970

Timiskaming²

496

505

500

Toronto

2,382

2,524

3,410

Waterloo

1,227

1,304

1,530

Wellington / Dufferin / Guelph

1,151

1,170

1,120

Windsor / Essex

1,216

1,250

1,430

York

1,642

1,732

1,860

Ontario Total

37,681

39,278

42,260

1. Respondents who agreed to share their data with provinces and health regions.
2. On the Public Use Microdata file, Huron is combined with Perth, and North Bay with Timiskaming for confidentiality reasons.
3. The final sample sizes are lower or higher than the targets due to circumstances that can occur during data collection (e.g. non-response, vacancies).