Somero: population and statistics
Somero has a population of 8,339 (2025) across 668.1 km², or 12.5 people per km². It ranks 115 of 308 municipalities by population. Its population is falling: −8.3% between 2015 and 2025.
- 8,339 residents
- 668.1 km²
- 12 people/km²
- 97 m
Somero in numbers
Key points
Among the 27 municipalities in Southwest Finland, Somero ranks No. 13 by population.
Share of foreign nationals: 5.9% in Somero, compared with an average of 7.9% in Southwest Finland and 7.7% nationally.
Largest business sector: Health and social work, with 20.6% of the area's jobs.
A 1 kWp solar panel tilted at 44° generates about 918 kWh a year here.
Did you know?
- Number 1 in Southwest Finland for “Elevation”.
- Its area is roughly equal to 93,567 football pitches.
- The nearest municipality is Jokioinen, 19.5 km away.
- The nearest more populous municipality is Forssa (16,307 residents), 21 km away.
- A 4 kWp rooftop solar system here would generate about 3,672 kWh a year, roughly what an average household uses.
Population of Somero over time
Somero had 9,093 residents in 2015 and 8,339 in 2025.
| Year | Population |
|---|---|
| 2020 | 8,646 |
| 2021 | 8,563 |
| 2022 | 8,426 |
| 2023 | 8,410 |
| 2024 | 8,429 |
| 2025 | 8,339 |
All indicators for Somero
Value for the municipality, then the regional average and the national median (for counts: regional and national totals). The gauge places the municipality between the lowest and highest value in the country.
Population
| Indicator | Somero | Southwest Finland | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged under 15 (2025) | 12.2% | 13.6% | 13.3% | ranked 193 of 302 | |
| Share of people aged 65 and over (2025) | 35.2% | 24.4% | 31.2% | ranked 104 of 302 | |
| Mean age of the population (2025) | 50.8 years | 44.5 | 48.5 | ranked 96 of 302 | |
| Share of Swedish speakers (2025) | 0.5% | 5.5% | 0.3% | ranked 90 of 302 | |
| Share of foreign nationals (2025) | 5.9% | 7.9% | 3.4% | ranked 58 of 302 |
Housing
| Indicator | Somero | Southwest Finland | National | Position? | Rank |
|---|---|---|---|---|---|
| Total dwellings (2025) | 5,127 no. | 290,562 no. | 3,258,449 no. | ranked 106 of 308 | |
| Share of dwellings built before 1940 (2025) | 11.5% | – | 8.2% | ranked 84 of 302 | |
| Share of dwellings built after 2000 (2025) | 11.1% | – | 14.5% | ranked 202 of 302 | |
| Share of dwellings in detached and semi-detached houses (2025) | 62.3% | – | 64.5% | ranked 172 of 302 | |
| Share of dwellings in blocks of flats (2025) | 13.6% | – | 11.1% | ranked 130 of 302 | |
| Share of dwellings not permanently occupied (2025) | 16.2% | – | 16.9% | ranked 165 of 302 | |
| Free-time residential buildings per 1,000 inhabitants (2025) | 230.5 /1,000 inh. | 96.5 /1,000 inh. | 186.3 /1,000 inh. | ranked 126 of 302 |
Energy
| Indicator | Somero | Southwest Finland | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of residential buildings heated with district heating (2025) | 7.6% | – | 3.9% | ranked 77 of 302 | |
| Share of residential buildings heated with electricity (2025) | 38.2% | – | 39.8% | ranked 182 of 302 | |
| Share of residential buildings heated with geothermal heat (2025) | 2.8% | – | 5.5% | ranked 259 of 302 | |
| Share of residential buildings heated with oil or gas (2025) | 20.0% | – | 17.1% | ranked 103 of 302 | |
| Share of residential buildings heated with wood or peat (2025) | 31.3% | – | 29.1% | ranked 123 of 302 |
Economy
| Indicator | Somero | Southwest Finland | National | Position? | Rank |
|---|---|---|---|---|---|
| Business establishments (2024) | 1,411 no. | 54,602 no. | 600,547 no. | ranked 92 of 308 | |
| Business establishments per 1,000 inhabitants (2024) | 167.4 /1,000 inh. | 110.1 /1,000 inh. | 141.7 /1,000 inh. | ranked 79 of 302 | |
| Median disposable cash income per consumption unit (2024) | 29,184 €/year | – | 29,044 €/year | ranked 139 of 302 | |
| Price per m² of old dwellings in housing companies (2025) | 805 €/m² | – | 1,110 €/m² | ranked 159 of 220 | |
| Active companies in the business register (excluding sole traders) (2026) | 485 per 1,000 inh. | 30,470 per 1,000 inh. | 335,854 per 1,000 inh. | ranked 111 of 308 | |
| Active companies in the register per 1,000 inhabitants (excluding sole traders) (2026) | 58.2 per 1,000 inh. | 61.2 per 1,000 inh. | 53.9 per 1,000 inh. | ranked 115 of 302 | |
| Companies registered in the last 12 months per 1,000 inhabitants (2026) | 3.0 per 1,000 inh. | 4.0 per 1,000 inh. | 2.7 per 1,000 inh. | ranked 123 of 302 |
Employment
| Indicator | Somero | Southwest Finland | National | Position? | Rank |
|---|---|---|---|---|---|
| Persons employed in the area (jobs) (2024) | 2,642 no. | 207,169 no. | 2,423,433 no. | ranked 118 of 308 | |
| Unemployed as a share of the labour force (2024) | 11.1% | 11.0% | 10.8% | ranked 143 of 302 | |
| Employment rate (aged 20–64) (2024) | 74.4% | 74.2% | 75.4% | ranked 175 of 302 |
Transport
| Indicator | Somero | Southwest Finland | National | Position? | Rank |
|---|---|---|---|---|---|
| Passenger cars per 1,000 inhabitants (2025) | 611 /1,000 inh. | 495 /1,000 inh. | 580 /1,000 inh. | ranked 73 of 302 |
Society
| Indicator | Somero | Southwest Finland | National | Position? | Rank |
|---|---|---|---|---|---|
| At-risk-of-poverty rate (2024) | 15.4% | 14.8% | 14.3% | ranked 119 of 302 |
Education
| Indicator | Somero | Southwest Finland | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 15 and over with a tertiary-level qualification (2024) | 22.3% | 33.5% | 24.1% | ranked 196 of 302 |
Business sectors: Somero
Share of each sector in total jobs; “×1.5” means the sector is 1.5 times more common than nationally.
- Health and social work20.6% ×1.1
- Manufacturing15.2% ×1.2
- Agriculture, forestry and fishing12.5% ×5.1
- Wholesale and retail trade9.4% ×0.9
- Construction8.4% ×1.3
- Education5.5% ×0.7
- Administrative and support services5.0% ×0.7
- Finance and insurance3.8% ×1.8
Sunshine and temperatures: Somero
Where is Somero?
Frequently asked questions
What is the population of Somero?
Somero has 8,339 residents (2025), ranking 115 of 308 municipalities.
How big is Somero?
Somero covers 668.1 km², with a density of 12 people per km².
Is the population of Somero growing?
Between 2015 and 2025, the population of Somero went from 9,093 to 8,339, a change of −8.3%.
Where is Somero?
Somero is in Southwest Finland. Latitude 60.629, longitude 23.514.
Share of residential buildings heated with geothermal heat: what is the figure for Somero?
In Somero, “Share of residential buildings heated with geothermal heat” stands at 2.8% (2025), ranking 259 of 302 municipalities; the national median is 5.5%.
Share of foreign nationals: what is the figure for Somero?
In Somero, “Share of foreign nationals” stands at 5.9% (2025), ranking 58 of 302 municipalities; the national median is 3.4%.
How much electricity does a solar panel produce in Somero?
In Somero, a 1 kWp south-facing system tilted at 44° produces about 918 kWh a year.
Which municipalities border Somero?
The nearest to Somero are Jokioinen (20 km), Koski Tl (21 km), Forssa (21 km), Ypäjä (24 km), Tammela (24 km).
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