Yanai (柳井市)

City

Yamaguchi (山口) — 2025 — Based on Basic Resident Register

Total Population

29,233

-450 (-1.52%)

Young (0–14)

9.5%

2,790

Working Age (15–64)

50.6%

14,803

Aging Rate

39.8%

11,640

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	29,233	13,683	15,550
Young (0–14)	2,790	1,418	1,372
Working Age (15–64)	14,803	7,462	7,341
Elderly (65+)	11,640	4,803	6,837

Year	Total Population	0–14	15–64	65+	Aging Rate
2025	29,233	2,790	14,803	11,640	39.8%
2024	29,683	2,914	15,022	11,747	39.6%
2023	30,201	2,998	15,369	11,834	39.2%
2022	30,550	3,119	15,533	11,898	38.9%
2021	31,087	3,254	15,821	12,012	38.6%
2020	31,635	3,365	16,171	12,099	38.2%
2019	32,031	3,410	16,504	12,117	37.8%
2018	32,504	3,535	16,833	12,136	37.3%
2017	32,865	3,575	17,130	12,160	37.0%
2016	33,338	3,705	17,532	12,101	36.3%
2015	33,840	3,812	18,063	11,965	35.4%
2014	34,254	3,883	18,668	11,703	34.2%
2013	34,522	3,954	19,009	11,559	33.5%
2012	34,890	4,031	19,491	11,368	32.6%
2011	35,260	4,091	19,877	11,292	32.0%
2010	35,436	4,070	20,033	11,333	32.0%
2009	35,726	4,152	20,347	11,227	31.4%
2008	36,051	4,234	20,677	11,140	30.9%
2007	36,371	4,289	21,050	11,032	30.3%
2006	36,602	4,350	21,384	10,868	29.7%
2005	36,876	4,420	21,731	10,725	29.1%
2004	33,371	4,136	19,749	9,486	28.4%
2003	33,701	4,211	20,015	9,475	28.1%
2002	33,895	4,287	20,232	9,376	27.7%
2001	34,035	4,347	20,434	9,254	27.2%
2000	34,264	4,460	20,803	9,001	26.3%
1999	34,557	4,574	21,096	8,887	25.7%
1998	34,775	4,699	21,308	8,768	25.2%
1997	35,013	4,802	21,677	8,534	24.4%
1996	35,274	4,913	21,991	8,370	23.7%
1995	35,595	5,076	22,391	8,128	22.8%