Aging Population of Ontario (2000-2024)

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Ontario, Canada’s most populous province, has seen major demographic changes over the past two decades. The latest 2024 data shows that Ontario’s population continues to grow — now at 16.12 million — but the most significant growth is happening in the senior age brackets. This trend signals the ongoing impact of increased life expectancy, aging baby boomers, and a shift toward an older average age.

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Key Insights for Ontario’s Aging Population in 2024

In 2024, Ontario’s population aged 65 and over surpassed 3.95 million, or nearly 1 in 4 residents. Here’s a breakdown:

• 65 to 69 years: 908,331
• 70 to 74 years: 732,975
• 75 to 79 years: 580,483
• 80 to 84 years: 367,690
• 85 to 89 years: 221,333
• 90 to 99 years: 138,634
• 100+ years: 4,682

By contrast, Ontario’s 0 to 14 population stands at about 2.36 million, showing relatively flat growth over the same period.

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How Ontario’s Age Structure Has Changed Since 2000

The aging of Ontario’s population is not a sudden development — it’s the result of a steady, long-term trend:

Year	Population Aged 65+	% of Total
2000	~1.56 million	~13.3%
2010	~1.95 million	~14.8%
2020	~3.23 million	~21.9%
2024	~3.95 million	~24.5%

Key trends:

• The 85+ population more than doubled from ~108,000 in 2000 to over 226,000 in 2024.
• The 75–79 group grew from 311,000 to 580,000, an 87% increase.
• Growth in working-age adults (25–54) remains steady, but their share of the population is declining.

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Median Age in Ontario Trend

Ontario’s median age — the point at which half the population is older and half is younger — has gradually increased over the last two decades, reflecting the broader aging trend.

• In 2000, Ontario’s median age was 36.5 years.
• By 2010, it had reached 39.6 years.
• In 2024, the median age stands at 39.6 years, just below its peak of 40.7 years observed in 2015–2017.

Median Age in Ontario (Selected Years)

Year	Median Age (Years)
2000	36.5
2005	38.1
2010	39.6
2015	40.7
2020	40.5
2024	39.6

Interestingly, while the median age peaked in the mid-2010s, it has slightly declined since — possibly due to increased immigration and a modest rise in younger working-age adults entering the province.

Key Takeaway: Ontario’s population is still aging, but the pace may be softening slightly due to demographic shifts such as younger immigrants and millennial family growth. Nonetheless, the overall upward trend in median age over the past two decades underscores the long-term shift toward an older provincial population.

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Aging Population of Ontario Statistics:

Age group	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024
All ages	11,683,290	11,897,473	12,093,412	12,243,641	12,389,641	12,527,581	12,661,953	12,765,133	12,883,824	12,998,941	13,136,481	13,262,345	13,392,364	13,511,902	13,617,763	13,709,293	13,876,500	14,078,499	14,326,746	14,573,565	14,761,811	14,842,488	15,141,455	15,623,207	16,124,116
0 to 4 years	708,739	702,336	691,187	681,735	681,384	683,380	688,515	693,234	702,396	708,357	715,390	718,407	721,230	720,027	717,626	714,741	718,858	721,369	726,384	730,104	730,444	720,216	714,869	710,941	714,630
5 to 9 years	794,472	797,615	793,890	781,682	766,430	749,547	731,779	722,719	716,952	716,170	714,591	718,284	727,831	739,746	745,923	752,316	760,228	765,051	768,588	772,961	777,455	779,955	785,200	796,300	809,359
10 to 14 years	789,378	803,743	822,970	836,489	841,065	838,887	830,712	822,112	812,386	800,198	785,903	768,789	758,980	753,309	754,533	754,377	761,527	770,176	784,570	794,501	803,800	807,179	814,695	825,200	840,013
15 to 19 years	785,179	805,204	820,614	829,165	841,426	857,703	873,061	878,107	886,422	890,613	894,773	896,092	883,304	868,919	856,238	845,303	842,395	842,151	844,382	844,994	840,767	824,719	856,327	890,197	913,889
20 to 24 years	763,384	784,378	802,074	823,766	842,531	859,741	873,557	879,867	880,239	887,459	904,064	919,741	936,398	947,873	951,841	948,922	958,411	983,169	1,014,565	1,033,680	1,025,395	988,890	1,024,473	1,098,456	1,174,907
25 to 29 years	802,787	806,900	811,518	812,626	818,560	822,151	829,279	838,689	853,879	866,639	882,587	893,222	905,863	910,214	918,821	927,348	947,766	975,385	1,018,634	1,057,269	1,085,649	1,094,116	1,140,145	1,227,507	1,288,977
30 to 34 years	891,629	896,351	899,722	894,702	885,412	878,149	867,331	857,954	853,442	853,143	855,783	865,367	876,551	890,959	901,802	911,880	930,684	947,739	971,535	1,005,599	1,041,463	1,064,707	1,112,723	1,198,063	1,273,694
35 to 39 years	1,050,058	1,045,591	1,032,757	1,005,044	975,378	952,638	942,112	931,254	922,077	908,014	897,684	883,904	881,686	880,244	881,360	881,022	892,168	907,403	932,769	961,119	987,659	1,004,745	1,034,608	1,083,182	1,145,753
40 to 44 years	971,430	1,005,725	1,034,064	1,060,779	1,085,256	1,097,464	1,087,425	1,060,488	1,023,249	986,675	958,893	949,774	944,778	937,504	925,904	916,103	905,587	903,456	906,447	914,909	921,902	933,676	953,911	992,041	1,041,737
45 to 49 years	854,391	881,702	913,970	943,207	968,577	994,271	1,024,318	1,047,216	1,073,630	1,093,699	1,099,542	1,081,588	1,057,146	1,023,882	992,030	967,150	959,799	957,063	953,488	947,806	941,297	928,933	925,827	935,733	958,119
50 to 54 years	761,709	791,646	797,649	810,656	833,134	860,720	887,822	918,096	946,480	972,202	998,476	1,028,489	1,047,685	1,068,331	1,085,025	1,089,229	1,074,738	1,052,599	1,022,904	995,970	975,572	970,476	966,992	965,101	966,072
55 to 59 years	573,195	600,586	649,950	689,026	721,958	754,456	782,564	787,724	801,726	824,245	852,637	878,908	908,002	935,919	959,786	981,658	1,007,191	1,028,734	1,052,311	1,072,470	1,078,867	1,064,091	1,040,775	1,013,296	992,074
60 to 64 years	475,942	486,408	503,212	524,749	546,182	566,113	591,878	637,840	675,715	708,790	743,861	771,099	773,940	786,614	806,312	831,424	856,496	886,184	913,904	939,832	964,028	989,448	1,007,842	1,030,134	1,050,764
65 to 69 years	435,923	435,653	436,824	440,304	448,930	455,692	468,299	484,742	505,456	525,446	545,055	570,236	615,938	654,740	685,959	715,949	739,672	745,100	756,942	777,699	802,466	825,560	853,896	881,945	908,331
70 to 74 years	387,138	392,512	396,956	399,273	400,628	400,341	400,985	403,292	409,087	419,677	429,626	441,654	455,487	474,680	493,234	510,594	534,016	577,854	613,234	644,105	674,042	696,597	700,948	712,822	732,975
75 to 79 years	310,744	316,604	322,077	327,585	330,362	334,659	339,805	344,043	347,635	350,230	353,270	355,870	359,629	366,472	376,090	383,850	393,482	407,989	425,201	442,888	458,502	478,944	519,158	551,951	580,483
80 to 84 years	180,580	193,406	207,693	222,063	236,013	244,497	250,961	254,311	258,296	260,727	265,725	271,728	276,987	280,904	284,184	287,157	290,826	295,142	301,177	310,557	319,071	328,235	339,839	353,684	367,690
85 to 89 years	99,659	102,515	105,425	107,217	109,844	117,680	128,750	138,369	147,745	156,876	162,653	166,256	171,225	175,962	179,154	183,097	188,801	193,322	197,140	200,510	203,209	206,639	210,050	214,919	221,333
90 to 94 years	36,873	38,157	39,949	42,092	44,780	47,255	49,616	51,111	52,162	54,081	59,275	65,524	71,314	76,562	81,688	84,943	88,761	91,182	93,536	95,846	98,548	102,220	104,267	105,680	106,832
95 to 99 years	8,848	9,171	9,547	10,077	10,322	10,687	11,500	12,273	13,108	13,924	14,780	15,346	16,135	16,597	17,586	19,389	22,026	24,293	25,957	27,409	28,120	29,131	30,524	31,439	31,802
100 years and older	1,232	1,270	1,364	1,404	1,469	1,550	1,684	1,692	1,742	1,776	1,913	2,067	2,255	2,444	2,667	2,841	3,068	3,138	3,078	3,337	3,555	4,011	4,386	4,616	4,682

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FAQ

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Source:

Statistics Canada. Table 17-10-0005-01  Population estimates on July 1, by age and gender

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