Hachimantai (八幡平市)

City

Iwate (岩手) — 2025 — Based on Basic Resident Register

Total Population

23,179

-362 (-1.54%)

Young (0–14)

8.2%

1,897

Working Age (15–64)

48.8%

11,312

Aging Rate

43.0%

9,970

Population Trends (2006–2025)

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

Category	Total	Male	Female
Total	23,179	11,215	11,964
Young (0–14)	1,897	940	957
Working Age (15–64)	11,312	5,855	5,457
Elderly (65+)	9,970	4,420	5,550

Year	Total Population	0–14	15–64	65+	Aging Rate
2025	23,179	1,897	11,312	9,970	43.0%
2024	23,541	1,961	11,539	10,041	42.7%
2023	23,975	2,058	11,875	10,042	41.9%
2022	24,287	2,069	12,136	10,082	41.5%
2021	24,788	2,149	12,554	10,085	40.7%
2020	25,276	2,234	12,993	10,049	39.8%
2019	25,876	2,343	13,515	10,018	38.7%
2018	26,287	2,423	13,945	9,919	37.7%
2017	26,679	2,497	14,382	9,800	36.7%
2016	27,180	2,579	14,943	9,658	35.5%
2015	27,647	2,661	15,497	9,489	34.3%
2014	28,039	2,760	15,979	9,300	33.2%
2013	28,308	2,834	16,247	9,227	32.6%
2012	28,704	2,973	16,564	9,167	31.9%
2011	29,172	3,078	16,993	9,101	31.2%
2010	29,577	3,210	17,153	9,214	31.2%
2009	30,042	3,336	17,469	9,237	30.7%
2008	30,543	3,501	17,860	9,182	30.1%
2007	30,901	3,639	18,118	9,144	29.6%
2006	31,466	3,803	18,592	9,071	28.8%