Municipality · Southwest FinlandCoat of arms of Masku

Masku: population and statistics

Masku has a population of 9,612 (2025) across 175.2 km², or 54.8 people per km². It ranks 99 of 308 municipalities by population. Its population is falling: −1.0% between 2015 and 2025.

  • 9,612 residents
  • 175.2 km²
  • 55 people/km²
  • 11 m
Location map: Masku

Masku in numbers

Population
9,612
ranked 99 of 308
−1.0%over 10 years
2015–2025
Population density
55people/km²
ranked 42 of 302
Area
175km²
ranked 267 of 308
Elevation
11m
ranked 271 of 308
Share of dwellings not permanently occupied
5.9%
ranked 301 of 302
Share of residential buildings heated with district heating
0.1%
ranked 299 of 302
At-risk-of-poverty rate
5.6%
ranked 300 of 302
Employment rate (aged 20–64)
85.0%
ranked 11 of 302

Key points

Among the 27 municipalities in Southwest Finland, Masku ranks No. 11 by population.

Largest business sector: Health and social work, with 24.4% of the area's jobs.

A 1 kWp solar panel tilted at 44° generates about 965 kWh a year here.

Did you know?

Population of Masku over time

9,5009,5509,6009,6509,7009,750201520172019202120232025
Population, 2015–2025

Masku had 9,706 residents in 2015 and 9,612 in 2025.

YearPopulation
20209,543
20219,612
20229,642
20239,619
20249,592
20259,612

All indicators for Masku

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.

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

Population

IndicatorMaskuSouthwest FinlandNationalPosition?Rank
Share of people aged under 15 (2025)17.7%13.6%13.3%ranked 32 of 302
Share of people aged 65 and over (2025)20.3%24.4%31.2%ranked 279 of 302
Mean age of the population (2025)43.0 years44.548.5ranked 257 of 302
Share of Swedish speakers (2025)1.2%5.5%0.3%ranked 60 of 302
Share of foreign nationals (2025)2.1%7.9%3.4%ranked 230 of 302

Housing

IndicatorMaskuSouthwest FinlandNationalPosition?Rank
Total dwellings (2025)4,262 no.290,562 no.3,258,449 no.ranked 128 of 308
Share of dwellings built before 1940 (2025)5.9%–8.2%ranked 193 of 302
Share of dwellings built after 2000 (2025)33.5%–14.5%ranked 32 of 302
Share of dwellings in detached and semi-detached houses (2025)78.3%–64.5%ranked 19 of 302
Share of dwellings in blocks of flats (2025)4.9%–11.1%ranked 222 of 302
Share of dwellings not permanently occupied (2025)5.9%–16.9%ranked 301 of 302
Free-time residential buildings per 1,000 inhabitants (2025)91.1 /1,000 inh.96.5 /1,000 inh.186.3 /1,000 inh.ranked 206 of 302

Energy

IndicatorMaskuSouthwest FinlandNationalPosition?Rank
Share of residential buildings heated with district heating (2025)0.1%–3.9%ranked 299 of 302
Share of residential buildings heated with electricity (2025)47.3%–39.8%ranked 51 of 302
Share of residential buildings heated with geothermal heat (2025)12.1%–5.5%ranked 33 of 302
Share of residential buildings heated with oil or gas (2025)27.5%–17.1%ranked 30 of 302
Share of residential buildings heated with wood or peat (2025)12.2%–29.1%ranked 255 of 302

Economy

IndicatorMaskuSouthwest FinlandNationalPosition?Rank
Business establishments (2024)1,001 no.54,602 no.600,547 no.ranked 128 of 308
Business establishments per 1,000 inhabitants (2024)104.4 /1,000 inh.110.1 /1,000 inh.141.7 /1,000 inh.ranked 238 of 302
Median disposable cash income per consumption unit (2024)34,625 €/year–29,044 €/yearranked 12 of 302
Price per m² of old dwellings in housing companies (2025)1,917 €/m²–1,110 €/m²ranked 36 of 220
Active companies in the business register (excluding sole traders) (2026)563 per 1,000 inh.30,470 per 1,000 inh.335,854 per 1,000 inh.ranked 98 of 308
Active companies in the register per 1,000 inhabitants (excluding sole traders) (2026)58.6 per 1,000 inh.61.2 per 1,000 inh.53.9 per 1,000 inh.ranked 112 of 302
Companies registered in the last 12 months per 1,000 inhabitants (2026)3.2 per 1,000 inh.4.0 per 1,000 inh.2.7 per 1,000 inh.ranked 106 of 302

Employment

IndicatorMaskuSouthwest FinlandNationalPosition?Rank
Persons employed in the area (jobs) (2024)2,347 no.207,169 no.2,423,433 no.ranked 130 of 308
Unemployed as a share of the labour force (2024)6.2%11.0%10.8%ranked 274 of 302
Employment rate (aged 20–64) (2024)85.0%74.2%75.4%ranked 11 of 302

Transport

IndicatorMaskuSouthwest FinlandNationalPosition?Rank
Passenger cars per 1,000 inhabitants (2025)620 /1,000 inh.495 /1,000 inh.580 /1,000 inh.ranked 52 of 302

Society

IndicatorMaskuSouthwest FinlandNationalPosition?Rank
At-risk-of-poverty rate (2024)5.6%14.8%14.3%ranked 300 of 302

Education

IndicatorMaskuSouthwest FinlandNationalPosition?Rank
Share of people aged 15 and over with a tertiary-level qualification (2024)35.4%33.5%24.1%ranked 30 of 302

Business sectors: Masku

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

Sunshine and temperatures: Masku

Annual solar output
965kWh
for 1 kWp tilted at 44°
Warmest month
18.0°C
July
Coldest month
−3.8°C
February
Most productive month
144kWh
May

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

Where is Masku?

Frequently asked questions

What is the population of Masku?

Masku has 9,612 residents (2025), ranking 99 of 308 municipalities.

How big is Masku?

Masku covers 175.2 km², with a density of 55 people per km².

Is the population of Masku growing?

Between 2015 and 2025, the population of Masku went from 9,706 to 9,612, a change of −1.0%.

Where is Masku?

Masku is in Southwest Finland. Latitude 60.571, longitude 22.100.

Share of dwellings not permanently occupied: what is the figure for Masku?

In Masku, “Share of dwellings not permanently occupied” stands at 5.9% (2025), ranking 301 of 302 municipalities; the national median is 16.9%.

Share of residential buildings heated with district heating: what is the figure for Masku?

In Masku, “Share of residential buildings heated with district heating” stands at 0.1% (2025), ranking 299 of 302 municipalities; the national median is 3.9%.

How much electricity does a solar panel produce in Masku?

In Masku, a 1 kWp south-facing system tilted at 44° produces about 965 kWh a year.

Which municipalities border Masku?

The nearest to Masku are Nousiainen (3.2 km), Rusko (7.4 km), Raisio (10 km), Naantali (12 km), Mynämäki (13 km).

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