Izu (伊豆市)

City

Shizuoka (静岡) — 2025 — Based on Basic Resident Register

Total Population

27,748

-523 (-1.85%)

Young (0–14)

7.2%

2,011

Working Age (15–64)

49.9%

13,860

Aging Rate

42.8%

11,877

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	27,748	13,356	14,392
Young (0–14)	2,011	1,007	1,004
Working Age (15–64)	13,860	7,078	6,782
Elderly (65+)	11,877	5,271	6,606

Year	Total Population	0–14	15–64	65+	Aging Rate
2025	27,748	2,011	13,860	11,877	42.8%
2024	28,271	2,139	14,131	12,001	42.4%
2023	28,872	2,263	14,483	12,126	42.0%
2022	29,319	2,362	14,711	12,246	41.8%
2021	29,784	2,435	15,143	12,206	41.0%
2020	30,360	2,542	15,661	12,157	40.0%
2019	30,952	2,650	16,169	12,133	39.2%
2018	31,411	2,762	16,599	12,050	38.4%
2017	31,842	2,836	17,061	11,945	37.5%
2016	32,376	2,979	17,612	11,785	36.4%
2015	32,958	3,146	18,176	11,636	35.3%
2014	33,526	3,218	18,937	11,371	33.9%
2013	33,855	3,260	19,398	11,197	33.1%
2012	34,228	3,447	19,904	10,877	31.8%
2011	34,820	3,567	20,509	10,744	30.9%
2010	35,474	3,740	20,940	10,794	30.4%
2009	36,074	3,939	21,435	10,700	29.7%
2008	36,441	4,070	21,814	10,557	29.0%
2007	36,939	4,251	22,263	10,425	28.2%
2006	37,266	4,446	22,647	10,173	27.3%
2005	37,519	4,571	22,930	10,018	26.7%