Iki (壱岐市)

City

Nagasaki (長崎) — 2025 — Based on Basic Resident Register

Total Population

23,736

-624 (-2.56%)

Young (0–14)

11.2%

2,654

Working Age (15–64)

49.3%

11,694

Aging Rate

39.6%

9,388

Population Trends (2004–2025)

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

Category	Total	Male	Female
Total	23,736	11,439	12,297
Young (0–14)	2,654	1,383	1,271
Working Age (15–64)	11,694	6,017	5,677
Elderly (65+)	9,388	4,039	5,349

Year	Total Population	0–14	15–64	65+	Aging Rate
2025	23,736	2,654	11,694	9,388	39.6%
2024	24,360	2,806	11,998	9,556	39.2%
2023	24,956	2,959	12,317	9,680	38.8%
2022	25,494	3,139	12,581	9,774	38.3%
2021	25,977	3,248	12,942	9,787	37.7%
2020	26,439	3,373	13,277	9,789	37.0%
2019	26,827	3,472	13,586	9,769	36.4%
2018	27,202	3,553	13,888	9,761	35.9%
2017	27,581	3,630	14,134	9,757	35.4%
2016	27,991	3,743	14,501	9,691	34.6%
2015	28,493	3,843	14,945	9,657	33.9%
2014	29,004	3,937	15,402	9,618	33.2%
2013	29,185	3,962	15,636	9,541	32.7%
2012	29,589	4,019	16,185	9,385	31.7%
2011	29,999	4,107	16,560	9,332	31.1%
2010	30,589	4,238	16,835	9,516	31.1%
2009	30,967	4,379	17,011	9,577	30.9%
2008	31,482	4,509	17,404	9,569	30.4%
2007	31,843	4,554	17,682	9,607	30.2%
2006	32,462	4,729	18,240	9,493	29.2%
2005	32,807	4,831	18,531	9,445	28.8%
2004	33,236	4,989	18,813	9,434	28.4%