Sanyonoda (山陽小野田市)

City

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

Total Population

58,871

-588 (-0.99%)

Young (0–14)

10.9%

6,431

Working Age (15–64)

54.0%

31,783

Aging Rate

35.1%

20,657

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	58,871	28,152	30,719
Young (0–14)	6,431	3,286	3,145
Working Age (15–64)	31,783	16,178	15,605
Elderly (65+)	20,657	8,688	11,969

Year	Total Population	0–14	15–64	65+	Aging Rate
2025	58,871	6,431	31,783	20,657	35.1%
2024	59,459	6,641	32,036	20,782	35.0%
2023	60,209	6,921	32,392	20,896	34.7%
2022	60,850	7,134	32,698	21,018	34.5%
2021	61,565	7,351	33,143	21,071	34.2%
2020	62,388	7,570	33,850	20,968	33.6%
2019	63,168	7,857	34,358	20,953	33.2%
2018	63,623	7,978	34,885	20,760	32.6%
2017	64,020	8,090	35,409	20,521	32.1%
2016	64,366	8,185	36,058	20,123	31.3%
2015	64,598	8,291	36,627	19,680	30.5%
2014	64,959	8,391	37,603	18,965	29.2%
2013	65,275	8,500	38,174	18,601	28.5%
2012	65,023	8,575	38,512	17,936	27.6%
2011	65,453	8,655	39,221	17,577	26.9%
2010	65,708	8,707	39,373	17,628	26.8%
2009	66,006	8,815	39,838	17,353	26.3%
2008	66,281	8,884	40,342	17,055	25.7%
2007	66,849	9,008	41,091	16,750	25.1%
2006	67,092	9,018	41,719	16,355	24.4%
2005	67,399	9,199	42,205	15,995	23.7%