List of census metropolitan areas and agglomerations in Ontario

Rank in 2006	Rank in 2001	Place	Province	Type	2006 Population	2001 Population
1	1	Toronto (Mississauga)	Ontario	CMA	5,113,149	4,682,897
4	4	Ottawa-Gatineau	Ontario/Quebec	CMA	1,130,761	1,067,800
9	9	Hamilton (Burlington)	Ontario	CMA	692,911	662,401
10	10	London	Ontario	CMA	457,720	435,600
11	11	Kitchener (Cambridge, Waterloo)	Ontario	CMA	451,235	414,284
12	12	St. Catharines-Niagara (Niagara Falls, Welland)	Ontario	CMA	390,317	377,009
14	16	Oshawa (Whitby, Clarington)	Ontario	CMA	330,594	296,298
16	15	Windsor (Lakeshore)	Ontario	CMA	323,342	307,877
21	23	Barrie (Innisfil)	Ontario	CMA	177,061	148,480
24	21	Greater Sudbury	Ontario	CMA	158,258	155,601
25	26	Kingston (South Frontenac)	Ontario	CMA	152,358	146,838
28	32	Guelph	Ontario	CMA	127,009	117,344
30	31	Brantford (Brant)	Ontario	CMA	124,607	118,086
31	29	Thunder Bay	Ontario	CMA	122,907	121,986
33	33	Peterborough (Smith-Ennismore-Lakefield)	Ontario	CMA	116,570	110,876
34	35	Chatham-Kent	Ontario	CA	108,589	107,709
39	38	Belleville (Quinte West)	Ontario	CA	91,518	87,395
40	37	Sarnia (St. Clair)	Ontario	CA	88,793	88,331
46	44	Sault Ste. Marie	Ontario	CA	80,098	78,908
48	47	Kawartha Lakes	Ontario	CA	74,561	69,179
52	50	North Bay	Ontario	CA	63,424	62,303
53	52	Norfolk	Ontario	CA	62,563	60,847
55	54	Cornwall (South Stormont)	Ontario	CA	58,485	57,581
60	61	Leamington (Kingsville)	Ontario	CA	49,741	46,757
69	66	Timmins	Ontario	CA	42,997	43,686
72	75	Orillia (Ramara)	Ontario	CA	40,532	38,333
75	72	Brockville (Elizabethtown-Kitley, Augusta)	Ontario	CA	39,668	39,049
78	80	Woodstock	Ontario	CA	35,480	33,269
79	78	Midland (Tay, Penetanguishene)	Ontario	CA	35,402	33,692
83	84	Owen Sound (Georgian Bluffs)	Ontario	CA	32,259	31,583
86	86	Stratford	Ontario	CA	30,461	29,780
93	97	Centre Wellington	Ontario	CA	26,049	24,260
100	101	Pembroke (Laurentian Valley)	Ontario	CA	23,195	22,223

• All contestants from Ontario said three are in last and Toadette says "Two are in last!".