Japan Population Decline Simulator

Shizuoka静岡県

Omaezaki 御前崎市

Data last updated:

Omaezaki, Shizuoka, Japan has a population of 28,442 (2025 national census). IPSS projections estimate 26,937 by 2030 and 19,720 by 2050 (a decrease of about 36.6% from 2020), with the share of residents aged 65+ rising from 30.8% in 2020 to 46.2%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)

2025

(Census)

28,442

2030

(Projection)

26,937

▼ -13.4%

2040

(Projection)

23,427

▼ -24.7%

2050

(Projection)

19,720

▼ -36.6%

Change vs. 2020 census

Elderly Rate (65+): 2020 30.8%→2050 46.2%

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Data Sources

  • Portal Site of Official Statistics of Japan (e-Stat)(https://www.e-stat.go.jp/)
  • National Institute of Population and Social Security Research (IPSS), Regional Population Projections (2023 ed.)

* This service uses the e-Stat API but its content is not guaranteed by the Japanese government.

Omaezaki Population Table (1980–2050)

Population by year: national census results (restated to current municipal boundaries) and IPSS (2023) projections based on the 2020 census.

YearPopulationvs 2020Type
198030,774▼ -1.1%Census
198533,479▲ +7.6%Census
199034,237▲ +10.1%Census
199535,316▲ +13.5%Census
200036,059▲ +15.9%Census
200535,272▲ +13.4%Census
201034,700▲ +11.6%Census
201532,578▲ +4.7%Census
202031,103—Census
202528,442▼ -8.6%Census
203026,937▼ -13.4%Projection
203525,209▼ -18.9%Projection
204023,427▼ -24.7%Projection
204521,564▼ -30.7%Projection
205019,720▼ -36.6%Projection

About Omaezaki

Overview

Omaezaki (御前崎市) is a municipality in Shizuoka, Japan, with a population of 28,442 as of 2025.

Population Projection of Omaezaki

According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Omaezaki's population is expected to reach 26,937 by 2030 (-13.4%), 23,427 by 2040 (-24.7%), and 19,720 by 2050 (-36.6%). A significant population decline is projected over the next three decades.

Aging Rate of Omaezaki

The aging rate (percentage of residents aged 65 and over) is 30.8% as of 2020 and is projected to rise to 46.2% by 2050. Over 40% of residents will be elderly, significantly affecting healthcare and social services needs.

National Comparison

Omaezaki's population decline rate exceeds the national average.

National and Prefectural Rank

  • Population decline rate: Ranked #834 out of 1903 municipalities nationwide.
  • Aging rate in 2050: Ranked #809 out of 1903 nationwide.
  • Population size: Ranked #938 out of 1917 nationwide.
  • Related: National rankings / All municipalities in Shizuoka

Earnings in Shizuoka (静岡県): Average salary in Shizuoka (静岡県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure

Frequently Asked Questions

Q.What is the current population of Omaezaki, Shizuoka?
A.According to the 2025 national census, Omaezaki has a population of 28,442.
Q.What is the population of Omaezaki in 2026?
A.Omaezaki's population in 2026 is estimated at approximately 28,141. This is an interpolated reference value between the 2025 census (28,442) and the IPSS projection for 2030 (26,937).
Q.What is the projected population of Omaezaki in the future?
A.According to IPSS projections, Omaezaki's population is expected to be 26,937 in 2030, 23,427 in 2040, and 19,720 in 2050.
Q.What is the population decline rate of Omaezaki?
A.Over the 30 years from 2020 to 2050, Omaezaki's population is projected to change by -36.6%. The 10-year change is -13.4% and the 20-year change is -24.7%.
Q.Why is the population of Omaezaki declining?
A.Nationwide, Japan's population decline is driven by natural decrease (deaths exceeding births) and, in regional municipalities, by net out-migration of young people to major metropolitan areas. In Omaezaki, the share of residents aged 65+ is projected to rise from 30.8% to 46.2% by 2050, which further accelerates natural decrease.
Q.What is the aging rate of Omaezaki?
A.Omaezaki's aging rate (percentage aged 65 and over) is 30.8% as of 2020, projected to rise to 46.2% by 2050.
Q.Where does this population data come from?
A.Historical data is sourced from Japan's national census via the e-Stat API (Statistics Bureau of Japan). Future projections are from the National Institute of Population and Social Security Research (IPSS) "Regional Population Projections 2023".
Q.Is the data up to date?
A.Historical data uses national census results through 2025. Future projections use the IPSS 2023 edition, which is based on the 2020 census.

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