Ontario Cities by Population 2024

147 cities

City	2024 Pop.	2023 Pop.	2016 Pop.	2011 Pop.	Change
Toronto	2,928,879	2,903,456	2,731,570	2,615,060	0.88%
Ottawa	1,021,765	1,010,391	934,243	883,391	1.13%
Mississauga	734,843	733,174	721,599	713,443	0.23%
Brampton	725,022	707,127	593,638	523,906	2.53%
Hamilton	565,225	561,606	536,917	519,949	0.64%
London	413,887	410,003	383,822	366,151	0.95%
Markham	377,791	371,312	328,966	301,709	1.74%
Vaughan	337,273	333,227	306,233	288,301	1.21%
Kitchener	257,635	254,449	233,222	219,153	1.25%
Windsor	227,657	226,321	217,188	210,891	0.59%
Oakville	213,407	210,856	193,832	182,520	1.21%
Richmond Hill	211,210	209,115	195,022	185,541	1%
Burlington	196,048	194,409	183,314	175,779	0.84%
Oshawa	176,586	174,349	159,458	149,607	1.28%
Milton	168,694	159,937	110,128	84,362	5.48%
Greater Sudbury	163,563	163,307	161,531	160,274	0.16%
Barrie	150,472	149,311	141,434	136,063	0.78%
Guelph	149,738	147,368	131,794	121,688	1.61%
Whitby	139,241	137,834	128,377	122,022	1.02%
Ajax	137,762	135,360	119,677	109,600	1.77%
St. Catharines	135,900	135,549	133,113	131,400	0.26%
Cambridge	135,161	134,495	129,920	126,748	0.5%
Kingston	124,497	124,410	123,798	123,363	0.07%
Waterloo	115,737	114,335	104,986	98,780	1.23%
Thunder Bay	107,193	107,282	107,909	108,359	-0.08%
Clarington	105,352	103,584	92,013	84,548	1.71%
Brantford	103,981	103,147	97,496	93,650	0.81%
Chatham-Kent	98,490	98,880	101,647	103,671	-0.39%
Pickering	96,871	96,218	91,771	88,721	0.68%
Niagara Falls	96,842	95,700	88,071	82,997	1.19%
Newmarket	91,491	90,550	84,224	79,978	1.04%
Peterborough	84,775	84,298	81,032	78,777	0.57%
Caledon	79,545	77,784	66,502	59,460	2.26%
Kawartha Lakes	79,088	78,621	75,423	73,219	0.59%
Sault Ste. Marie	70,618	70,956	73,368	75,141	-0.48%
Sarnia	70,376	70,527	71,594	72,366	-0.21%
Norfolk County	65,459	65,281	64,044	63,175	0.27%
Halton Hills	64,762	64,300	61,161	59,013	0.72%
Whitchurch-Stouffville	62,856	60,423	45,837	37,628	4.03%
Aurora	59,230	58,743	55,445	53,203	0.83%
Welland	55,066	54,712	52,293	50,631	0.65%
Belleville	52,803	52,537	50,716	49,454	0.51%
Bradford West Gwillimbury	51,010	48,720	35,325	28,077	4.7%
Georgina	48,634	48,220	45,418	43,517	0.86%
North Bay	48,366	48,753	51,553	53,651	-0.79%
Cornwall	46,990	46,940	46,589	46,340	0.11%
Haldimand County	46,804	46,653	45,608	44,876	0.32%
Woodstock	46,494	45,755	40,902	37,754	1.61%
Quinte West	44,374	44,274	43,577	43,086	0.23%
Innisfil	43,667	42,709	36,566	32,727	2.24%
New Tecumseth	41,789	40,761	34,242	30,234	2.52%
St. Thomas	40,571	40,359	38,909	37,905	0.52%
Lakeshore	40,175	39,711	36,611	34,546	1.17%
Timmins	39,676	39,934	41,788	43,165	-0.65%
Brant	38,484	38,258	36,707	35,638	0.59%
King	34,218	32,821	24,512	19,899	4.26%
LaSalle	32,813	32,471	30,180	28,643	1.05%
Stratford	32,386	32,269	31,465	30,903	0.36%
Orillia	32,117	31,997	31,166	30,586	0.38%
Fort Erie	31,949	31,792	30,710	29,960	0.5%
Grimsby	30,826	30,364	27,314	25,325	1.52%
Centre Wellington	30,765	30,430	28,191	26,693	1.1%
Orangeville	30,444	30,247	28,900	27,975	0.65%
Woolwich	28,300	27,865	25,006	23,145	1.56%
Wasaga Beach	26,905	26,033	20,675	17,537	3.35%
Clarence-Rockland	26,795	26,498	24,512	23,185	1.12%
East Gwillimbury	26,636	26,290	23,991	22,473	1.32%
Collingwood	26,599	25,944	21,793	19,241	2.52%
Leamington	26,350	26,502	27,595	28,403	-0.58%
Lincoln	26,025	25,734	23,787	22,487	1.13%
Essa	25,975	25,307	21,083	18,505	2.64%
Prince Edward County	23,921	24,021	24,735	25,258	-0.42%
Wilmot	22,852	22,550	20,545	19,223	1.34%
Oro-Medonte	22,665	22,454	21,036	20,078	0.94%
Tecumseh	22,632	22,706	23,229	23,610	-0.32%
Amherstburg	22,558	22,479	21,936	21,556	0.35%
Uxbridge	22,092	21,975	21,176	20,623	0.53%
Kingsville	21,860	21,821	21,552	21,362	0.18%
Essex	21,823	21,644	20,427	19,600	0.83%
Scugog	21,694	21,684	21,617	21,569	0.04%
Niagara-on-the-Lake	21,507	20,961	17,511	15,400	2.6%
Huntsville	21,096	20,931	19,816	19,056	0.79%
Cobourg	21,010	20,807	19,440	18,519	0.98%
Owen Sound	20,797	20,865	21,341	21,688	-0.32%
Strathroy-Caradoc	20,691	20,713	20,867	20,978	-0.11%
Brockville	20,534	20,633	21,346	21,870	-0.48%
Springwater	20,477	20,294	19,059	18,223	0.9%
Thorold	20,282	20,090	18,801	17,931	0.95%
South Frontenac	19,532	19,419	18,646	18,113	0.58%
Petawawa	19,295	19,018	17,187	15,988	1.46%
Hanover	18,907	18,477	15,733	14,026	2.32%
North Grenville	18,899	18,574	16,451	15,085	1.75%
Russell	18,782	18,483	16,520	15,247	1.62%
Middlesex Centre	18,578	18,409	17,262	16,487	0.92%
Loyalist	18,244	18,080	16,971	16,221	0.91%
Port Colborne	18,119	18,142	18,306	18,424	-0.13%
Pelham	17,962	17,853	17,110	16,598	0.61%
Port Hope	17,653	17,538	16,753	16,214	0.66%
Selwyn	17,408	17,364	17,060	16,846	0.25%
Midland	17,342	17,281	16,864	16,572	0.35%
Bracebridge	17,012	16,883	16,010	15,414	0.76%
Tillsonburg	16,830	16,707	15,872	15,301	0.74%
Greater Napanee	16,521	16,441	15,892	15,511	0.49%
West Lincoln	15,628	15,482	14,500	13,837	0.94%
Saugeen Shores	15,587	15,340	13,715	12,661	1.61%
Severn	15,444	15,183	13,477	12,377	1.72%
The Nation	14,868	14,594	12,808	11,668	1.88%
Clearview	14,845	14,756	14,151	13,734	0.6%
West Nipissing	14,715	14,670	14,364	14,149	0.3%
Kenora	14,701	14,750	15,096	15,348	-0.33%
Mississippi Mills	14,511	14,335	13,163	12,385	1.23%
North Perth	13,970	13,862	13,130	12,631	0.78%
South Stormont	13,939	13,833	13,110	12,617	0.77%
Ingersoll	13,799	13,664	12,757	12,146	0.99%
Guelph/Eramosa	13,650	13,548	12,854	12,380	0.75%
Thames Centre	13,502	13,463	13,191	13,000	0.29%
Brighton	13,472	13,257	11,844	10,928	1.62%
St. Clair	13,426	13,507	14,086	14,515	-0.6%
Trent Hills	13,388	13,326	12,900	12,604	0.47%
Pembroke	13,150	13,239	13,882	14,360	-0.67%
South Glengarry	13,131	13,133	13,150	13,162	-0.02%
West Grey	12,898	12,850	12,518	12,286	0.37%
Tiny	12,733	12,610	11,787	11,232	0.97%
Gravenhurst	12,732	12,679	12,311	12,055	0.42%
Perth East	12,672	12,620	12,261	12,011	0.41%
Wellington North	12,648	12,554	11,914	11,477	0.75%
Erin	12,597	12,446	11,439	10,770	1.21%
Central Elgin	12,392	12,419	12,607	12,743	-0.21%
Wellesley	12,194	12,073	11,260	10,713	1%
Brock	12,140	12,077	11,642	11,341	0.53%
Carleton Place	12,130	11,934	10,644	9,809	1.65%
North Dumfries	11,801	11,590	10,215	9,334	1.82%
Kincardine	11,742	11,697	11,389	11,174	0.38%
Adjala-Tosorontio	11,598	11,518	10,975	10,603	0.69%
Norwich	11,464	11,405	11,001	10,721	0.52%
Mapleton	11,449	11,329	10,527	9,989	1.05%
North Dundas	11,363	11,353	11,278	11,225	0.09%
South Dundas	10,896	10,888	10,833	10,794	0.07%
Meaford	10,819	10,840	10,991	11,100	-0.2%
Georgian Bluffs	10,600	10,585	10,479	10,404	0.14%
Lambton Shores	10,591	10,596	10,631	10,656	-0.05%
Tay	10,527	10,464	10,033	9,736	0.6%
Rideau Lakes	10,519	10,495	10,326	10,207	0.23%
South Huron	10,342	10,311	10,096	9,945	0.3%
North Glengarry	9,886	9,913	10,109	10,251	-0.28%
Elliot Lake	9,837	9,945	10,741	11,348	-1.09%
Hawkesbury	9,818	9,873	10,263	10,551	-0.55%

The largest city in Ontario is Toronto, with a 2024 population of 2,928,879. Milton is the fastest growing city in Ontario, having grown 5.48% annually between 2011 and 2016.

Canada Census Data - Official Canadian Census Data.

Ontario Cities by Population 2024

Sources