Maniwa (真庭市)

City

Okayama (岡山) — 2025 — Based on Basic Resident Register

Total Population

40,778

-907 (-2.18%)

Young (0–14)

10.4%

4,247

Working Age (15–64)

49.0%

20,000

Aging Rate

40.5%

16,531

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	40,778	19,651	21,127
Young (0–14)	4,247	2,163	2,084
Working Age (15–64)	20,000	10,380	9,620
Elderly (65+)	16,531	7,108	9,423

Year	Total Population	0–14	15–64	65+	Aging Rate
2025	40,778	4,247	20,000	16,531	40.5%
2024	41,685	4,452	20,505	16,728	40.1%
2023	42,586	4,613	21,066	16,907	39.7%
2022	43,424	4,768	21,561	17,095	39.4%
2021	44,245	4,914	22,147	17,184	38.8%
2020	44,978	5,026	22,710	17,242	38.3%
2019	45,682	5,177	23,262	17,243	37.7%
2018	46,482	5,302	23,945	17,235	37.1%
2017	47,195	5,421	24,604	17,170	36.4%
2016	47,820	5,569	25,229	17,022	35.6%
2015	48,544	5,701	25,997	16,846	34.7%
2014	49,222	5,837	26,704	16,681	33.9%
2013	49,566	5,970	27,071	16,525	33.3%
2012	49,987	6,017	27,761	16,209	32.4%
2011	50,605	6,151	28,167	16,287	32.2%
2010	51,164	6,289	28,344	16,531	32.3%
2009	51,704	6,397	28,702	16,605	32.1%
2008	52,282	6,459	29,184	16,639	31.8%
2007	52,855	6,515	29,714	16,626	31.5%
2006	53,514	6,677	30,265	16,572	31.0%
2005	54,150	6,847	30,783	16,520	30.5%