Kitsuki (杵築市)

City

Oita (大分) — 2025 — Based on Basic Resident Register

Total Population

26,153

-558 (-2.09%)

Young (0–14)

9.5%

2,486

Working Age (15–64)

51.0%

13,340

Aging Rate

39.5%

10,327

Population Trends (1995–2025)

* Data before 2012 includes Japanese residents only (foreign residents were added to the Basic Resident Register in July 2012)

Category	Total	Male	Female
Total	26,153	12,820	13,333
Young (0–14)	2,486	1,305	1,181
Working Age (15–64)	13,340	6,986	6,354
Elderly (65+)	10,327	4,529	5,798

Year	Total Population	0–14	15–64	65+	Aging Rate
2025	26,153	2,486	13,340	10,327	39.5%
2024	26,711	2,638	13,670	10,403	38.9%
2023	27,295	2,801	14,010	10,484	38.4%
2022	27,638	2,925	14,140	10,573	38.3%
2021	28,235	3,056	14,546	10,633	37.7%
2020	28,873	3,179	15,070	10,624	36.8%
2019	29,437	3,326	15,460	10,651	36.2%
2018	29,871	3,376	15,876	10,619	35.5%
2017	30,222	3,442	16,216	10,564	35.0%
2016	30,645	3,516	16,628	10,501	34.3%
2015	30,966	3,556	16,979	10,431	33.7%
2014	31,182	3,573	17,329	10,280	33.0%
2013	31,384	3,603	17,614	10,167	32.4%
2012	31,772	3,697	18,096	9,979	31.4%
2011	32,412	3,772	18,676	9,964	30.7%
2010	32,811	3,860	18,836	10,115	30.8%
2009	33,261	3,921	19,189	10,151	30.5%
2008	33,759	4,037	19,605	10,117	30.0%
2007	33,823	4,066	19,725	10,032	29.7%
2006	33,701	4,116	19,676	9,909	29.4%
2005	23,269	3,045	14,151	6,073	26.1%
2004	23,179	3,105	14,074	6,000	25.9%
2003	23,099	3,156	14,026	5,917	25.6%
2002	23,118	3,224	14,078	5,816	25.2%
2001	22,956	3,255	13,980	5,721	24.9%
2000	22,836	3,344	13,934	5,558	24.3%
1999	22,496	3,304	13,729	5,463	24.3%
1998	22,468	3,400	13,735	5,333	23.7%
1997	22,311	3,442	13,699	5,170	23.2%
1996	22,405	3,497	13,805	5,103	22.8%
1995	22,415	3,586	13,898	4,931	22.0%