Municipality · Vestland

Osterøy: population and statistics

Osterøy has a population of 8,231 (2026) across 244.0 km², or 33.7 people per km². It ranks 131 of 357 municipalities by population. Its population is growing: +3.4% between 2016 and 2026.

  • 8,231 residents
  • 244.0 km²
  • 34 people/km²
  • 217 m
Location map: Osterøy

Key points

Among the 43 municipalities in Vestland, Osterøy ranks No. 16 by population.

Establishments per 1,000 inhabitants: 101.6 per 1,000 inh. in Osterøy, compared with an average of 111.3 per 1,000 inh. in Vestland and 116.7 per 1,000 inh. nationally.

Share of electric cars among passenger cars in own-account transport: 29.6% in Osterøy, compared with an average of 39.6% in Vestland and 32.8% nationally.

Largest business sector: Agriculture, forestry and fishing, with 19.3% of the area's business sites.

A 1 kWp solar panel tilted at 41° generates about 723 kWh a year here.

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Osterøy in numbers

Population
8,231
ranked 131 of 357 +3.4%
Population density
34people/km²
ranked 97 of 351
Area
244km²
ranked 284 of 357
Elevation
217m
ranked 159 of 357
Establishments per 1,000 inhabitants
101.6per 1,000 inh.
ranked 291 of 351
Share of electric cars among passenger cars in own-account transport
29.6%
ranked 61 of 351
Life expectancy at birth (average of women and men)
83.7years
ranked 22 of 351
Share of dwellings in detached, semi-detached and terraced houses
94.5%
ranked 60 of 351

All indicators for Osterøy

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

IndicatorOsterøyVestlandNationalPositionRank
Net migration per 1,000 inhabitants (2025)6.8 per 1,000 inh.2.6 per 1,000 inh.4.1 per 1,000 inh.ranked 114 of 351
Share of inhabitants aged 65 and over (2026)21.7%19.3%23.7%ranked 240 of 351
Share of inhabitants under 18 (2026)20.8%20.0%18.7%ranked 71 of 351

Housing

IndicatorOsterøyVestlandNationalPositionRank
Total dwellings (occupied and unoccupied) (2026)3,935330,7152,760,619ranked 136 of 357
Share of dwellings built before 1946 (2026)19.9%16.7%16.4%ranked 117 of 351
Share of dwellings built after 2000 (2026)27.4%26.5%21.8%ranked 102 of 351
Share of dwellings in detached, semi-detached and terraced houses (2026)94.5%70.1%89.9%ranked 60 of 351
Share of dwellings in blocks of flats (2026)3.6%25.5%4.4%ranked 194 of 351
Cabins and holiday homes per 1,000 inhabitants (2026)93.4 per 1,000 inh.65.4 per 1,000 inh.153.1 per 1,000 inh.ranked 238 of 351

Economy

IndicatorOsterøyVestlandNationalPositionRank
Establishments (2026)83673,282656,492ranked 155 of 357
Establishments per 1,000 inhabitants (2026)101.6 per 1,000 inh.111.3 per 1,000 inh.129.8 per 1,000 inh.ranked 291 of 351
Median income before tax (gross income) (2024)519,700 NOK–500,900 NOKranked 103 of 351
Active businesses in the Central Coordinating Register (2026)1,165 per 1,000 inh.101,284 per 1,000 inh.915,761 per 1,000 inh.ranked 148 of 357
Active businesses in the register per 1,000 inhabitants (2026)141.5 per 1,000 inh.153.8 per 1,000 inh.167.1 per 1,000 inh.ranked 263 of 351
Businesses registered in the last 12 months per 1,000 inhabitants (2026)13.7 per 1,000 inh.13.1 per 1,000 inh.11.9 per 1,000 inh.ranked 82 of 351

Employment

IndicatorOsterøyVestlandNationalPositionRank
Employed persons as a percentage of the population aged 15–74 (2025)70.5%70.3%67.5%ranked 78 of 351
Registered unemployed as a share of the population aged 15–74 (2025)0.8%1.0%0.9%ranked 198 of 351

Transport

IndicatorOsterøyVestlandNationalPositionRank
Passenger cars in own-account transport per 1,000 inhabitants (2025)571 per 1,000 inh.487 per 1,000 inh.591 per 1,000 inh.ranked 217 of 351
Share of electric cars among passenger cars in own-account transport (2025)29.6%39.6%19.7%ranked 61 of 351

Society

IndicatorOsterøyVestlandNationalPositionRank
Share of population with immigrant background (2025)13.4%17.3%15.2%ranked 238 of 351

Health

IndicatorOsterøyVestlandNationalPositionRank
Life expectancy at birth (average of women and men) (2025)83.7 years83.782.8ranked 22 of 351

Education

IndicatorOsterøyVestlandNationalPositionRank
Share with university or university college education (2025)24.3%37.7%27.5%ranked 272 of 351

Population of Osterøy over time

7,9168,0358,1538,2722016: 7,9572017: 8,0262018: 8,1252019: 8,1202020: 8,0982021: 8,0802022: 8,1312023: 8,1522024: 8,2002025: 8,1722026: 8,231201620182020202220242026

Osterøy had 7,957 residents in 2016 and 8,231 in 2026.

YearPopulation
20218,080
20228,131
20238,152
20248,200
20258,172
20268,231

Where is Osterøy?

Business sectors: Osterøy

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

Sunshine and temperatures: Osterøy

Annual solar output
723kWh
for 1 kWp tilted at 41°
Warmest month
13.6°C
July
Coldest month
−2.7°C
January
Most productive month
110kWh
May

Jan: 8 kWhJanFeb: 31 kWhFebMar: 71 kWhMarApr: 98 kWhAprMay: 110 kWhMayJun: 109 kWhJunJul: 97 kWhJulAug: 83 kWhAugSep: 57 kWhSepOct: 41 kWhOctNov: 14 kWhNovDec: 4 kWhDec0 °CJan: −2.7 °CFeb: −2.4 °CMar: −0.3 °CApr: 3.3 °CMay: 7.6 °CJun: 11.8 °CJul: 13.6 °CAug: 12.7 °CSep: 9.9 °COct: 5.4 °CNov: 0.9 °CDec: −1.9 °C
Monthly solar output (kWh per 1 kWp)Average temperature (°C)

Frequently asked questions

What is the population of Osterøy?

Osterøy has 8,231 residents (2026), ranking 131 of 357 municipalities.

How big is Osterøy?

Osterøy covers 244.0 km², with a density of 34 people per km².

Is the population of Osterøy growing?

Between 2016 and 2026, the population of Osterøy went from 7,957 to 8,231, a change of +3.4%.

Where is Osterøy?

Osterøy is in Vestland. Latitude 60.518, longitude 5.541.

Establishments per 1,000 inhabitants: what is the figure for Osterøy?

In Osterøy, “Establishments per 1,000 inhabitants” stands at 101.6 per 1,000 inh. (2026), ranking 291 of 351 municipalities; the national median is 129.8 per 1,000 inh..

Share of electric cars among passenger cars in own-account transport: what is the figure for Osterøy?

In Osterøy, “Share of electric cars among passenger cars in own-account transport” stands at 29.6% (2025), ranking 61 of 351 municipalities; the national median is 19.7%.

How much electricity does a solar panel produce in Osterøy?

In Osterøy, a 1 kWp south-facing system tilted at 41° produces about 723 kWh a year.

Which municipalities border Osterøy?

The nearest to Osterøy are Vaksdal (18 km), Bergen (18 km), Samnanger (19 km), Alver (20 km), Askøy (22 km).