Municipality · SatakuntaCoat of arms of Harjavalta

Harjavalta: population and statistics

Harjavalta has a population of 6,565 (2025) across 123.5 km², or 53.2 people per km². It ranks 138 of 308 municipalities by population. Its population is falling: −10.0% between 2015 and 2025.

  • 6,565 residents
  • 123.5 km²
  • 53 people/km²
  • 34 m
Location map: Harjavalta

Harjavalta in numbers

Population
6,565
ranked 138 of 308
−10.0%over 10 years
2015–2025
Population density
53people/km²
ranked 43 of 302
Area
123km²
ranked 284 of 308
Elevation
34m
ranked 221 of 308
Free-time residential buildings per 1,000 inhabitants
5.8/1,000 inh.
ranked 294 of 302
Share of residential buildings heated with oil or gas
32.2%
ranked 13 of 302
Business establishments per 1,000 inhabitants
90.6/1,000 inh.
ranked 272 of 302
Employment rate (aged 20–64)
72.2%
ranked 229 of 302

Key points

Among the 16 municipalities in Satakunta, Harjavalta ranks No. 9 by population.

Free-time residential buildings per 1,000 inhabitants: 5.8 /1,000 inh. in Harjavalta, compared with an average of 90.4 /1,000 inh. in Satakunta and 85.9 /1,000 inh. nationally.

Largest business sector: Manufacturing, with 39.2% of the area's jobs.

A 1 kWp solar panel tilted at 44° generates about 917 kWh a year here.

Did you know?

Population of Harjavalta over time

6,4006,6006,8007,0007,2007,400201520172019202120232025
Population, 2015–2025

Harjavalta had 7,296 residents in 2015 and 6,565 in 2025.

YearPopulation
20206,869
20216,785
20226,753
20236,703
20246,647
20256,565

All indicators for Harjavalta

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.

HarjavaltaNational medianHover over or tap a bar to see what it shows.

Population

IndicatorHarjavaltaSatakuntaNationalPosition?Rank
Share of people aged under 15 (2025)12.8%13.1%13.3%ranked 166 of 302
Share of people aged 65 and over (2025)34.0%29.2%31.2%ranked 115 of 302
Mean age of the population (2025)49.9 years47.348.5ranked 117 of 302
Share of Swedish speakers (2025)0.2%0.4%0.3%ranked 154 of 302
Share of foreign nationals (2025)4.5%5.1%3.4%ranked 97 of 302

Housing

IndicatorHarjavaltaSatakuntaNationalPosition?Rank
Total dwellings (2025)4,352 no.128,774 no.3,258,449 no.ranked 126 of 308
Share of dwellings built before 1940 (2025)4.1%–8.2%ranked 227 of 302
Share of dwellings built after 2000 (2025)6.6%–14.5%ranked 277 of 302
Share of dwellings in detached and semi-detached houses (2025)46.9%–64.5%ranked 254 of 302
Share of dwellings in blocks of flats (2025)31.0%–11.1%ranked 60 of 302
Share of dwellings not permanently occupied (2025)17.2%–16.9%ranked 146 of 302
Free-time residential buildings per 1,000 inhabitants (2025)5.8 /1,000 inh.90.4 /1,000 inh.186.3 /1,000 inh.ranked 294 of 302

Energy

IndicatorHarjavaltaSatakuntaNationalPosition?Rank
Share of residential buildings heated with district heating (2025)14.1%–3.9%ranked 36 of 302
Share of residential buildings heated with electricity (2025)38.3%–39.8%ranked 181 of 302
Share of residential buildings heated with geothermal heat (2025)2.0%–5.5%ranked 284 of 302
Share of residential buildings heated with oil or gas (2025)32.2%–17.1%ranked 13 of 302
Share of residential buildings heated with wood or peat (2025)12.8%–29.1%ranked 252 of 302

Economy

IndicatorHarjavaltaSatakuntaNationalPosition?Rank
Business establishments (2024)602 no.23,686 no.600,547 no.ranked 190 of 308
Business establishments per 1,000 inhabitants (2024)90.6 /1,000 inh.112.1 /1,000 inh.141.7 /1,000 inh.ranked 272 of 302
Median disposable cash income per consumption unit (2024)28,842 €/year–29,044 €/yearranked 163 of 302
Price per m² of old dwellings in housing companies (2025)802 €/m²–1,110 €/m²ranked 162 of 220
Active companies in the business register (excluding sole traders) (2026)290 per 1,000 inh.10,979 per 1,000 inh.335,854 per 1,000 inh.ranked 161 of 308
Active companies in the register per 1,000 inhabitants (excluding sole traders) (2026)44.2 per 1,000 inh.52.3 per 1,000 inh.53.9 per 1,000 inh.ranked 245 of 302
Companies registered in the last 12 months per 1,000 inhabitants (2026)2.6 per 1,000 inh.3.0 per 1,000 inh.2.7 per 1,000 inh.ranked 155 of 302

Employment

IndicatorHarjavaltaSatakuntaNationalPosition?Rank
Persons employed in the area (jobs) (2024)3,358 no.85,277 no.2,423,433 no.ranked 101 of 308
Unemployed as a share of the labour force (2024)12.5%11.5%10.8%ranked 83 of 302
Employment rate (aged 20–64) (2024)72.2%74.4%75.4%ranked 229 of 302

Transport

IndicatorHarjavaltaSatakuntaNationalPosition?Rank
Passenger cars per 1,000 inhabitants (2025)591 /1,000 inh.565 /1,000 inh.580 /1,000 inh.ranked 117 of 302

Society

IndicatorHarjavaltaSatakuntaNationalPosition?Rank
At-risk-of-poverty rate (2024)15.0%14.6%14.3%ranked 131 of 302

Education

IndicatorHarjavaltaSatakuntaNationalPosition?Rank
Share of people aged 15 and over with a tertiary-level qualification (2024)23.7%27.7%24.1%ranked 160 of 302

Business sectors: Harjavalta

Share of each sector in total jobs; “×1.5” means the sector is 1.5 times more common than nationally.

Sunshine and temperatures: Harjavalta

Annual solar output
917kWh
for 1 kWp tilted at 44°
Warmest month
17.7°C
July
Coldest month
−4.4°C
February
Most productive month
137kWh
May

0100200300−20°−10°0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Monthly sunshine (kWh/m²)Average temperature (°C)

Where is Harjavalta?

Frequently asked questions

What is the population of Harjavalta?

Harjavalta has 6,565 residents (2025), ranking 138 of 308 municipalities.

How big is Harjavalta?

Harjavalta covers 123.5 km², with a density of 53 people per km².

Is the population of Harjavalta growing?

Between 2015 and 2025, the population of Harjavalta went from 7,296 to 6,565, a change of −10.0%.

Where is Harjavalta?

Harjavalta is in Satakunta. Latitude 61.314, longitude 22.142.

Free-time residential buildings per 1,000 inhabitants: what is the figure for Harjavalta?

In Harjavalta, “Free-time residential buildings per 1,000 inhabitants” stands at 5.8 /1,000 inh. (2025), ranking 294 of 302 municipalities; the national median is 186.3 /1,000 inh..

Share of residential buildings heated with oil or gas: what is the figure for Harjavalta?

In Harjavalta, “Share of residential buildings heated with oil or gas” stands at 32.2% (2025), ranking 13 of 302 municipalities; the national median is 17.1%.

How much electricity does a solar panel produce in Harjavalta?

In Harjavalta, a 1 kWp south-facing system tilted at 44° produces about 917 kWh a year.

Which municipalities border Harjavalta?

The nearest to Harjavalta are Nakkila (9.3 km), Kokemäki (13 km), Ulvila (19 km), Eura (20 km), Eurajoki (25 km).

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