Shiwa (紫波町)

Town

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

Total Population

32,684

-220 (-0.67%)

Young (0–14)

11.9%

3,901

Working Age (15–64)

56.0%

18,305

Aging Rate

32.1%

10,478

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	32,684	15,766	16,918
Young (0–14)	3,901	1,998	1,903
Working Age (15–64)	18,305	9,283	9,022
Elderly (65+)	10,478	4,485	5,993

Year	Total Population	0–14	15–64	65+	Aging Rate
2025	32,684	3,901	18,305	10,478	32.1%
2024	32,904	3,977	18,484	10,443	31.7%
2023	33,049	3,982	18,630	10,437	31.6%
2022	33,188	4,026	18,768	10,394	31.3%
2021	33,178	3,988	18,927	10,263	30.9%
2020	33,114	3,986	19,004	10,124	30.6%
2019	33,142	4,001	19,176	9,965	30.1%
2018	33,288	4,056	19,382	9,850	29.6%
2017	33,495	4,107	19,752	9,636	28.8%
2016	33,667	4,277	19,985	9,405	27.9%
2015	33,799	4,327	20,356	9,116	27.0%
2014	33,962	4,423	20,762	8,777	25.8%
2013	34,044	4,489	20,957	8,598	25.3%
2012	34,034	4,543	21,196	8,295	24.4%
2011	34,151	4,608	21,440	8,103	23.7%
2010	34,223	4,682	21,491	8,050	23.5%
2009	34,334	4,774	21,588	7,972	23.2%
2008	34,357	4,869	21,678	7,810	22.7%
2007	34,508	4,955	21,886	7,667	22.2%
2006	34,514	5,052	21,970	7,492	21.7%
2005	34,564	5,154	22,018	7,392	21.4%
2004	34,490	5,249	21,977	7,264	21.1%
2003	34,357	5,286	21,978	7,093	20.6%
2002	34,297	5,365	21,981	6,951	20.3%
2001	34,048	5,386	21,896	6,766	19.9%
2000	33,638	5,440	21,704	6,494	19.3%
1999	33,130	5,454	21,402	6,274	18.9%
1998	32,646	5,420	21,134	6,092	18.7%
1997	32,287	5,456	20,955	5,876	18.2%
1996	31,813	5,455	20,690	5,668	17.8%
1995	31,495	5,512	20,549	5,434	17.3%