Tatsuno (辰野町)

Town

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

Total Population

18,009

-280 (-1.53%)

Young (0–14)

9.7%

1,739

Working Age (15–64)

52.0%

9,369

Aging Rate

38.3%

6,901

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	18,009	8,785	9,224
Young (0–14)	1,739	880	859
Working Age (15–64)	9,369	4,883	4,486
Elderly (65+)	6,901	3,022	3,879

Year	Total Population	0–14	15–64	65+	Aging Rate
2025	18,009	1,739	9,369	6,901	38.3%
2024	18,289	1,811	9,495	6,983	38.2%
2023	18,611	1,888	9,670	7,053	37.9%
2022	18,864	1,963	9,779	7,122	37.8%
2021	19,144	2,044	9,989	7,111	37.1%
2020	19,405	2,087	10,177	7,141	36.8%
2019	19,703	2,176	10,399	7,128	36.2%
2018	19,894	2,262	10,580	7,052	35.4%
2017	20,056	2,338	10,736	6,982	34.8%
2016	20,321	2,387	10,978	6,956	34.2%
2015	20,569	2,453	11,258	6,858	33.3%
2014	20,850	2,536	11,615	6,699	32.1%
2013	21,027	2,595	11,837	6,595	31.4%
2012	20,985	2,630	11,944	6,411	30.6%
2011	21,250	2,677	12,226	6,347	29.9%
2010	21,389	2,746	12,286	6,357	29.7%
2009	21,569	2,814	12,502	6,253	29.0%
2008	21,753	2,844	12,811	6,098	28.0%
2007	21,888	2,853	13,052	5,983	27.3%
2006	22,037	2,890	13,288	5,859	26.6%
2005	22,241	2,940	13,538	5,763	25.9%
2004	22,429	3,000	13,705	5,724	25.5%
2003	22,589	2,995	13,989	5,605	24.8%
2002	22,625	3,014	14,083	5,528	24.4%
2001	22,716	3,055	14,295	5,366	23.6%
2000	22,869	3,094	14,524	5,251	23.0%
1999	23,024	3,153	14,736	5,135	22.3%
1998	23,123	3,204	14,835	5,084	22.0%
1997	23,267	3,308	15,022	4,937	21.2%
1996	23,471	3,380	15,274	4,817	20.5%
1995	23,583	3,454	15,414	4,715	20.0%