Koshimizu (小清水町)

Town

Hokkaido (北海道) — 2025 — Based on Basic Resident Register

Total Population

4,342

-73 (-1.65%)

Young (0–14)

10.5%

454

Working Age (15–64)

49.7%

2,156

Aging Rate

39.2%

1,702

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	4,342	2,072	2,270
Young (0–14)	454	243	211
Working Age (15–64)	2,156	1,111	1,045
Elderly (65+)	1,702	711	991

Year	Total Population	0–14	15–64	65+	Aging Rate
2025	4,342	454	2,156	1,702	39.2%
2024	4,415	491	2,195	1,704	38.6%
2023	4,501	517	2,249	1,716	38.1%
2022	4,579	524	2,296	1,739	38.0%
2021	4,676	534	2,367	1,750	37.4%
2020	4,800	560	2,427	1,787	37.2%
2019	4,897	552	2,487	1,829	37.3%
2018	4,983	571	2,561	1,825	36.6%
2017	5,059	579	2,651	1,808	35.7%
2016	5,142	599	2,730	1,795	34.9%
2015	5,227	608	2,851	1,741	33.3%
2014	5,279	608	2,929	1,724	32.7%
2013	5,286	599	2,949	1,718	32.5%
2012	5,344	611	3,028	1,705	31.9%
2011	5,416	613	3,088	1,715	31.7%
2010	5,503	628	3,164	1,711	31.1%
2009	5,557	618	3,221	1,718	30.9%
2008	5,665	641	3,310	1,714	30.3%
2007	5,767	655	3,412	1,700	29.5%
2006	5,823	674	3,476	1,673	28.7%
2005	5,901	693	3,545	1,663	28.2%
2004	5,962	735	3,605	1,622	27.2%
2003	6,008	767	3,648	1,593	26.5%
2002	6,115	811	3,742	1,562	25.5%
2001	6,180	854	3,810	1,516	24.5%
2000	6,262	893	3,882	1,487	23.7%
1999	6,327	927	3,951	1,449	22.9%
1998	6,372	972	3,997	1,403	22.0%
1997	6,495	1,020	4,110	1,365	21.0%
1996	6,583	1,059	4,192	1,332	20.2%
1995	6,648	1,092	4,271	1,285	19.3%