Kai (甲斐市)

City

Yamanashi (山梨) — 2025 — Based on Basic Resident Register

Total Population

76,370

-144 (-0.19%)

Young (0–14)

12.9%

9,877

Working Age (15–64)

60.5%

46,235

Aging Rate

26.5%

20,258

Population Trends (2005–2025)

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

Category	Total	Male	Female
Total	76,370	37,775	38,595
Young (0–14)	9,877	5,062	4,815
Working Age (15–64)	46,235	23,832	22,403
Elderly (65+)	20,258	8,881	11,377

Year	Total Population	0–14	15–64	65+	Aging Rate
2025	76,370	9,877	46,235	20,258	26.5%
2024	76,514	10,098	46,260	20,156	26.3%
2023	76,598	10,242	46,332	20,024	26.1%
2022	76,343	10,333	46,150	19,860	26.0%
2021	76,038	10,408	46,156	19,474	25.6%
2020	75,843	10,476	46,310	19,057	25.1%
2019	75,771	10,597	46,459	18,715	24.7%
2018	75,545	10,621	46,593	18,331	24.3%
2017	75,373	10,744	46,758	17,871	23.7%
2016	74,977	10,766	46,913	17,298	23.1%
2015	74,811	10,844	47,314	16,653	22.3%
2014	74,708	11,042	47,808	15,858	21.2%
2013	74,373	11,109	47,936	15,328	20.6%
2012	73,047	11,058	47,556	14,433	19.8%
2011	73,336	11,216	48,208	13,912	19.0%
2010	73,073	11,294	48,200	13,579	18.6%
2009	72,683	11,355	48,263	13,065	18.0%
2008	72,676	11,431	48,865	12,380	17.0%
2007	72,634	11,516	49,272	11,846	16.3%
2006	72,744	11,586	49,883	11,275	15.5%
2005	72,548	11,609	50,176	10,763	14.8%