Lohja: population and statistics
Lohja has a population of 45,435 (2025) across 940.2 km², or 48.3 people per km². It ranks 25 of 308 municipalities by population. Its population is falling: −4.1% between 2015 and 2025.
- 45,435 residents
- 940.2 km²
- 48 people/km²
- 68 m
Lohja in numbers
Key points
Among the 26 municipalities in Uusimaa, Lohja ranks No. 7 by population.
Largest business sector: Health and social work, with 24.2% of the area's jobs.
A 1 kWp solar panel tilted at 44° generates about 954 kWh a year here.
Did you know?
- “Business establishments”: higher than in 93% of municipalities.
- “Total dwellings”: higher than in 92% of municipalities.
- “Persons employed in the area (jobs)”: higher than in 92% of municipalities.
- Its area is roughly equal to 131,688 football pitches.
- Its population density is 2.6 times the national average.
- The nearest municipality is Siuntio, 15.4 km away.
- The nearest more populous municipality is Espoo (325,716 residents), 33 km away.
Population of Lohja over time
Lohja had 47,353 residents in 2015 and 45,435 in 2025.
| Year | Population |
|---|---|
| 2020 | 45,886 |
| 2021 | 45,988 |
| 2022 | 45,811 |
| 2023 | 45,645 |
| 2024 | 45,687 |
| 2025 | 45,435 |
All indicators for Lohja
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 | Lohja | Uusimaa | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged under 15 (2025) | 13.7% | 15.2% | 13.3% | ranked 131 of 302 | |
| Share of people aged 65 and over (2025) | 27.3% | 18.6% | 31.2% | ranked 213 of 302 | |
| Mean age of the population (2025) | 46.9 years | 41.7 | 48.5 | ranked 191 of 302 | |
| Share of Swedish speakers (2025) | 3.4% | 7.1% | 0.3% | ranked 44 of 302 | |
| Share of foreign nationals (2025) | 5.2% | 12.5% | 3.4% | ranked 75 of 302 |
Housing
| Indicator | Lohja | Uusimaa | National | Position? | Rank |
|---|---|---|---|---|---|
| Total dwellings (2025) | 24,719 no. | 986,601 no. | 3,258,449 no. | ranked 25 of 308 | |
| Share of dwellings built before 1940 (2025) | 6.3% | – | 8.2% | ranked 184 of 302 | |
| Share of dwellings built after 2000 (2025) | 22.3% | – | 14.5% | ranked 84 of 302 | |
| Share of dwellings in detached and semi-detached houses (2025) | 47.4% | – | 64.5% | ranked 253 of 302 | |
| Share of dwellings in blocks of flats (2025) | 35.5% | – | 11.1% | ranked 51 of 302 | |
| Share of dwellings not permanently occupied (2025) | 9.1% | – | 16.9% | ranked 275 of 302 | |
| Free-time residential buildings per 1,000 inhabitants (2025) | 172.0 /1,000 inh. | 21.9 /1,000 inh. | 186.3 /1,000 inh. | ranked 159 of 302 |
Energy
| Indicator | Lohja | Uusimaa | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of residential buildings heated with district heating (2025) | 4.6% | – | 3.9% | ranked 128 of 302 | |
| Share of residential buildings heated with electricity (2025) | 49.2% | – | 39.8% | ranked 41 of 302 | |
| Share of residential buildings heated with geothermal heat (2025) | 6.5% | – | 5.5% | ranked 119 of 302 | |
| Share of residential buildings heated with oil or gas (2025) | 20.6% | – | 17.1% | ranked 96 of 302 | |
| Share of residential buildings heated with wood or peat (2025) | 18.5% | – | 29.1% | ranked 217 of 302 |
Economy
| Indicator | Lohja | Uusimaa | National | Position? | Rank |
|---|---|---|---|---|---|
| Business establishments (2024) | 4,672 no. | 184,635 no. | 600,547 no. | ranked 22 of 308 | |
| Business establishments per 1,000 inhabitants (2024) | 102.3 /1,000 inh. | 103.6 /1,000 inh. | 141.7 /1,000 inh. | ranked 243 of 302 | |
| Median disposable cash income per consumption unit (2024) | 31,700 €/year | – | 29,044 €/year | ranked 51 of 302 | |
| Price per m² of old dwellings in housing companies (2025) | 1,944 €/m² | – | 1,110 €/m² | ranked 33 of 220 | |
| Active companies in the business register (excluding sole traders) (2026) | 2,735 per 1,000 inh. | 136,553 per 1,000 inh. | 335,854 per 1,000 inh. | ranked 23 of 308 | |
| Active companies in the register per 1,000 inhabitants (excluding sole traders) (2026) | 60.2 per 1,000 inh. | 75.9 per 1,000 inh. | 53.9 per 1,000 inh. | ranked 102 of 302 | |
| Companies registered in the last 12 months per 1,000 inhabitants (2026) | 3.9 per 1,000 inh. | 6.0 per 1,000 inh. | 2.7 per 1,000 inh. | ranked 57 of 302 |
Employment
| Indicator | Lohja | Uusimaa | National | Position? | Rank |
|---|---|---|---|---|---|
| Persons employed in the area (jobs) (2024) | 15,251 no. | 868,675 no. | 2,423,433 no. | ranked 26 of 308 | |
| Unemployed as a share of the labour force (2024) | 10.7% | 11.2% | 10.8% | ranked 153 of 302 | |
| Employment rate (aged 20–64) (2024) | 76.9% | 74.6% | 75.4% | ranked 128 of 302 |
Tourism
| Indicator | Lohja | Uusimaa | National | Position? | Rank |
|---|---|---|---|---|---|
| Beds in accommodation establishments per 1,000 inhabitants (2025) | 25.0 /1,000 inh. | 28.6 /1,000 inh. | 36.4 /1,000 inh. | ranked 83 of 136 |
Transport
| Indicator | Lohja | Uusimaa | National | Position? | Rank |
|---|---|---|---|---|---|
| Passenger cars per 1,000 inhabitants (2025) | 556 /1,000 inh. | 406 /1,000 inh. | 580 /1,000 inh. | ranked 204 of 302 |
Society
| Indicator | Lohja | Uusimaa | National | Position? | Rank |
|---|---|---|---|---|---|
| At-risk-of-poverty rate (2024) | 11.1% | 12.4% | 14.3% | ranked 229 of 302 |
Education
| Indicator | Lohja | Uusimaa | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 15 and over with a tertiary-level qualification (2024) | 28.9% | 40.6% | 24.1% | ranked 76 of 302 |
Business sectors: Lohja
Share of each sector in total jobs; “×1.5” means the sector is 1.5 times more common than nationally.
- Health and social work24.2% ×1.3
- Manufacturing15.3% ×1.2
- Wholesale and retail trade12.3% ×1.2
- Construction8.5% ×1.3
- Education8.1% ×1.1
- Administrative and support services7.4% ×1.0
- Accommodation and food services3.8% ×1.0
- Professional, scientific and technical3.5% ×0.6
Sunshine and temperatures: Lohja
Where is Lohja?
Frequently asked questions
What is the population of Lohja?
Lohja has 45,435 residents (2025), ranking 25 of 308 municipalities.
How big is Lohja?
Lohja covers 940.2 km², with a density of 48 people per km².
Is the population of Lohja growing?
Between 2015 and 2025, the population of Lohja went from 47,353 to 45,435, a change of −4.1%.
Where is Lohja?
Lohja is in Uusimaa. Latitude 60.250, longitude 24.067.
Business establishments: what is the figure for Lohja?
In Lohja, “Business establishments” stands at 4,672 no. (2024), ranking 22 of 308 municipalities; the national median is 818 no..
Total dwellings: what is the figure for Lohja?
In Lohja, “Total dwellings” stands at 24,719 no. (2025), ranking 25 of 308 municipalities; the national median is 3,342 no..
How much electricity does a solar panel produce in Lohja?
In Lohja, a 1 kWp south-facing system tilted at 44° produces about 954 kWh a year.
Which municipalities border Lohja?
The nearest to Lohja are Siuntio (15 km), Ingå (23 km), Vihti (23 km), Kirkkonummi (25 km), Karkkila (33 km).
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