Municipality · North OstrobothniaCoat of arms of Ii

Ii: population and statistics

Ii has a population of 9,755 (2025) across 1,615.8 km², or 6.0 people per km². It ranks 98 of 308 municipalities by population. Its population is growing: +1.0% between 2015 and 2025.

  • 9,755 residents
  • 1,615.8 km²
  • 6 people/km²
  • 15 m
Location map: Ii

Ii in numbers

Population
9,755
ranked 98 of 308
+1.0%over 10 years
2015–2025
Population density
6people/km²
ranked 202 of 302
Area
1,616km²
ranked 39 of 308
Elevation
15m
ranked 255 of 308
Share of foreign nationals
0.7%
ranked 297 of 302
Share of residential buildings heated with electricity
60.0%
ranked 8 of 302
Unemployed as a share of the labour force
14.6%
ranked 35 of 302
Passenger cars per 1,000 inhabitants
521/1,000 inh.
ranked 266 of 302

Key points

Among the 30 municipalities in North Ostrobothnia, Ii ranks No. 9 by population.

Share of foreign nationals: 0.7% in Ii, compared with an average of 3.6% in North Ostrobothnia and 7.7% nationally.

Largest business sector: Health and social work, with 24.8% of the area's jobs.

A 1 kWp solar panel tilted at 48° generates about 902 kWh a year here.

Did you know?

Population of Ii over time

9,6009,7009,8009,90010,000201520172019202120232025
Population, 2015–2025

Ii had 9,663 residents in 2015 and 9,755 in 2025.

YearPopulation
20209,848
20219,912
20229,853
20239,766
20249,806
20259,755

All indicators for Ii

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.

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

Population

IndicatorIiNorth OstrobothniaNationalPosition?Rank
Share of people aged under 15 (2025)20.1%16.6%13.3%ranked 14 of 302
Share of people aged 65 and over (2025)23.7%21.9%31.2%ranked 246 of 302
Mean age of the population (2025)42.5 years42.048.5ranked 269 of 302
Share of Swedish speakers (2025)0.2%0.2%0.3%ranked 154 of 302
Share of foreign nationals (2025)0.7%3.6%3.4%ranked 297 of 302

Housing

IndicatorIiNorth OstrobothniaNationalPosition?Rank
Total dwellings (2025)4,838 no.228,549 no.3,258,449 no.ranked 114 of 308
Share of dwellings built before 1940 (2025)6.8%–8.2%ranked 172 of 302
Share of dwellings built after 2000 (2025)27.9%–14.5%ranked 50 of 302
Share of dwellings in detached and semi-detached houses (2025)74.3%–64.5%ranked 49 of 302
Share of dwellings in blocks of flats (2025)4.1%–11.1%ranked 236 of 302
Share of dwellings not permanently occupied (2025)13.5%–16.9%ranked 208 of 302
Free-time residential buildings per 1,000 inhabitants (2025)207.7 /1,000 inh.75.4 /1,000 inh.186.3 /1,000 inh.ranked 138 of 302

Energy

IndicatorIiNorth OstrobothniaNationalPosition?Rank
Share of residential buildings heated with district heating (2025)1.8%–3.9%ranked 211 of 302
Share of residential buildings heated with electricity (2025)60.0%–39.8%ranked 8 of 302
Share of residential buildings heated with geothermal heat (2025)6.8%–5.5%ranked 111 of 302
Share of residential buildings heated with oil or gas (2025)8.7%–17.1%ranked 274 of 302
Share of residential buildings heated with wood or peat (2025)22.5%–29.1%ranked 194 of 302

Economy

IndicatorIiNorth OstrobothniaNationalPosition?Rank
Business establishments (2024)929 no.40,555 no.600,547 no.ranked 136 of 308
Business establishments per 1,000 inhabitants (2024)94.7 /1,000 inh.96.8 /1,000 inh.141.7 /1,000 inh.ranked 264 of 302
Median disposable cash income per consumption unit (2024)28,583 €/year–29,044 €/yearranked 177 of 302
Price per m² of old dwellings in housing companies (2025)1,140 €/m²–1,110 €/m²ranked 106 of 220
Active companies in the business register (excluding sole traders) (2026)433 per 1,000 inh.19,646 per 1,000 inh.335,854 per 1,000 inh.ranked 121 of 308
Active companies in the register per 1,000 inhabitants (excluding sole traders) (2026)44.4 per 1,000 inh.47.0 per 1,000 inh.53.9 per 1,000 inh.ranked 242 of 302
Companies registered in the last 12 months per 1,000 inhabitants (2026)3.5 per 1,000 inh.3.5 per 1,000 inh.2.7 per 1,000 inh.ranked 72 of 302

Employment

IndicatorIiNorth OstrobothniaNationalPosition?Rank
Persons employed in the area (jobs) (2024)2,385 no.170,344 no.2,423,433 no.ranked 127 of 308
Unemployed as a share of the labour force (2024)14.6%12.5%10.8%ranked 35 of 302
Employment rate (aged 20–64) (2024)73.4%72.6%75.4%ranked 196 of 302

Tourism

IndicatorIiNorth OstrobothniaNationalPosition?Rank
Beds in accommodation establishments per 1,000 inhabitants (2025)13.4 /1,000 inh.49.4 /1,000 inh.36.4 /1,000 inh.ranked 117 of 136

Transport

IndicatorIiNorth OstrobothniaNationalPosition?Rank
Passenger cars per 1,000 inhabitants (2025)521 /1,000 inh.482 /1,000 inh.580 /1,000 inh.ranked 266 of 302

Society

IndicatorIiNorth OstrobothniaNationalPosition?Rank
At-risk-of-poverty rate (2024)12.9%14.8%14.3%ranked 191 of 302

Education

IndicatorIiNorth OstrobothniaNationalPosition?Rank
Share of people aged 15 and over with a tertiary-level qualification (2024)25.0%32.1%24.1%ranked 133 of 302

Business sectors: Ii

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

Sunshine and temperatures: Ii

Annual solar output
902kWh
for 1 kWp tilted at 48°
Warmest month
16.7°C
July
Coldest month
−7.9°C
February
Most productive month
141kWh
May

050100150200−20°−10°0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Monthly sunshine (kWh/m²)Average temperature (°C)

Where is Ii?

Frequently asked questions

What is the population of Ii?

Ii has 9,755 residents (2025), ranking 98 of 308 municipalities.

How big is Ii?

Ii covers 1,615.8 km², with a density of 6 people per km².

Is the population of Ii growing?

Between 2015 and 2025, the population of Ii went from 9,663 to 9,755, a change of +1.0%.

Where is Ii?

Ii is in North Ostrobothnia. Latitude 65.317, longitude 25.372.

Share of foreign nationals: what is the figure for Ii?

In Ii, “Share of foreign nationals” stands at 0.7% (2025), ranking 297 of 302 municipalities; the national median is 3.4%.

Share of residential buildings heated with electricity: what is the figure for Ii?

In Ii, “Share of residential buildings heated with electricity” stands at 60.0% (2025), ranking 8 of 302 municipalities; the national median is 39.8%.

How much electricity does a solar panel produce in Ii?

In Ii, a 1 kWp south-facing system tilted at 48° produces about 902 kWh a year.

Which municipalities border Ii?

The nearest to Ii are Oulu (34 km), Simo (41 km), Hailuoto (45 km), Kempele (45 km), Lumijoki (54 km).

Coat of arms: User:Tomia; Original design by Kaj Kajander., Public domain, Wikimedia Commons. Coats of arms and flags are shown for identification only; this site is not affiliated with any public authority.