Karuizawa (軽井沢町)

Town

Nagano (長野) — 2025 — Based on Basic Resident Register

Total Population

21,752

+153 (0.71%)

Young (0–14)

11.7%

2,540

Working Age (15–64)

56.2%

12,223

Aging Rate

32.1%

6,989

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	21,752	10,381	11,370
Young (0–14)	2,540	1,296	1,244
Working Age (15–64)	12,223	5,909	6,313
Elderly (65+)	6,989	3,176	3,813

Year	Total Population	0–14	15–64	65+	Aging Rate
2025	21,752	2,540	12,223	6,989	32.1%
2024	21,599	2,524	12,164	6,911	32.0%
2023	21,510	2,558	12,083	6,869	31.9%
2022	21,231	2,514	11,902	6,815	32.1%
2021	20,922	2,429	11,798	6,695	32.0%
2020	20,420	2,277	11,627	6,516	31.9%
2019	20,389	2,274	11,724	6,391	31.3%
2018	20,283	2,312	11,683	6,288	31.0%
2017	20,295	2,367	11,801	6,127	30.2%
2016	20,177	2,338	11,871	5,968	29.6%
2015	20,044	2,401	11,901	5,742	28.6%
2014	19,965	2,441	12,044	5,480	27.4%
2013	19,814	2,453	12,050	5,311	26.8%
2012	19,384	2,461	11,917	5,006	25.8%
2011	19,213	2,467	11,956	4,790	24.9%
2010	18,993	2,476	11,835	4,682	24.7%
2009	18,951	2,492	11,927	4,532	23.9%
2008	18,826	2,519	11,941	4,366	23.2%
2007	18,620	2,513	11,888	4,219	22.7%
2006	18,331	2,513	11,771	4,047	22.1%
2005	17,972	2,475	11,622	3,875	21.6%
2004	17,724	2,482	11,490	3,752	21.2%
2003	17,455	2,471	11,337	3,647	20.9%
2002	17,254	2,496	11,297	3,461	20.1%
2001	16,946	2,475	11,160	3,311	19.5%
2000	16,654	2,537	10,959	3,158	19.0%
1999	16,367	2,522	10,786	3,059	18.7%
1998	15,957	2,528	10,470	2,959	18.5%
1997	15,832	2,720	10,435	2,677	16.9%
1996	15,796	2,566	10,452	2,778	17.6%
1995	15,845	2,656	10,505	2,684	16.9%