Nagasaki長崎県
Oomura 大村市
Data last updated:
Oomura, Nagasaki, Japan has a population of 97,445 (2025 national census). IPSS projections estimate 94,602 by 2030 and 85,005 by 2050 (a decrease of about 10.9% from 2020), with the share of residents aged 65+ rising from 25.6% in 2020 to 36.9%.Sources: Japan Census (Statistics Bureau), IPSS Regional Population Projections (2023)
2025
(Census)
97,445
2030
(Projection)
94,602
▼ -0.8%
2040
(Projection)
90,556
▼ -5.1%
2050
(Projection)
85,005
▼ -10.9%
Change vs. 2020 census
Enter your age
See the population of 大村市 when you turn 50, 60, 70 and 80.
Other municipalities in Nagasaki (長崎県)
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.
Oomura Population Table (1980–2050)
Population by year: national census results (restated to current municipal boundaries) and IPSS (2023) projections based on the 2020 census.
| Year | Population | vs 2020 | Type |
|---|---|---|---|
| 1980 | 65,538 | ▼ -31.3% | Census |
| 1985 | 69,472 | ▼ -27.2% | Census |
| 1990 | 73,435 | ▼ -23.0% | Census |
| 1995 | 79,279 | ▼ -16.9% | Census |
| 2000 | 84,414 | ▼ -11.5% | Census |
| 2005 | 88,040 | ▼ -7.7% | Census |
| 2010 | 90,517 | ▼ -5.1% | Census |
| 2015 | 92,757 | ▼ -2.8% | Census |
| 2020 | 95,397 | — | Census |
| 2025 | 97,445 | ▲ +2.1% | Census |
| 2030 | 94,602 | ▼ -0.8% | Projection |
| 2035 | 92,817 | ▼ -2.7% | Projection |
| 2040 | 90,556 | ▼ -5.1% | Projection |
| 2045 | 87,977 | ▼ -7.8% | Projection |
| 2050 | 85,005 | ▼ -10.9% | Projection |
About Oomura
Overview
Oomura (大村市) is a municipality in Nagasaki, Japan, with a population of 97,445 as of 2025.
Population Projection of Oomura
According to projections by Japan's National Institute of Population and Social Security Research (IPSS), Oomura's population is expected to reach 94,602 by 2030 (-0.8%), 90,556 by 2040 (-5.1%), and 85,005 by 2050 (-10.9%). A modest population change is expected.
Aging Rate of Oomura
The aging rate (percentage of residents aged 65 and over) is 25.6% as of 2020 and is projected to rise to 36.9% by 2050. The aging rate will remain below the most severe Japanese averages.
National Comparison
Oomura's demographic trajectory is similar to the national average.
National and Prefectural Rank
- Population decline rate: Ranked #1594 out of 1903 municipalities nationwide.
- Aging rate in 2050: Ranked #1490 out of 1903 nationwide.
- Population size: Ranked #425 out of 1917 nationwide.
- Related: National rankings / All municipalities in Nagasaki
Earnings in Nagasaki (長崎県): Average salary in Nagasaki (長崎県) by age, gender and company sizejpsalary / MHLW Basic Survey on Wage Structure