In brief
Kotka has 50,210 residents in 25 postal code areas. The number of residents has fallen by 8% since 2014, while it has grown in Finland. Older residents stand out: 29% are 65 or over (Finland: 24%).
An old one-bedroom flat sells for €988 per m² on average, 61% less than in Finland. Between postal code areas the price ranges from €459 (Karhuvuori) to €1,413 (Kotkansaari). The price per m² has fallen by 4% since 2020. 61% of households own their home and 38% rent (Finland: 38% rent).
The median disposable monetary income of residents is €24,628 a year, about €2,052 a month: 7% lower than in Finland. Between postal code areas the median income ranges from €18,442 (Karhuvuori) to €31,200 (Mussalo). 16% of the labour force is unemployed, more than in Finland (12%). Kotka has 21,142 jobs; the largest industry is health and social work (26%). More common than usual is transport and storage: 10% of jobs (Finland: 5%).
Highs and lows
Price per m², 1 bedroom
Highest price per m², 1 bedroomKotkansaari€1,413Lowest price per m², 1 bedroomKarhuvuori€459Median disposable income
Highest median incomeMussalo€31,200Lowest median incomeKarhuvuori€18,442Households renting
Most households rentingHovinsaari68%Fewest households rentingTavastila2%Aged 16 to 34
Most residents aged 16 to 34Hovinsaari28%Fewest residents aged 16 to 34Huruksela9%
Key figures
Residents and households 2024, prices and rents from the latest quarters
- Price per m², 1 bedroom
- €988
- -4.2% since 2020
- 2025 Q3–2026 Q2
- Finland€2,502
- Rent per m², 1 bedroom
- €12.27
- a month
- Finland€16.12
- Residents
- 50,210
- -7.9% since 2014
- Mean age48.0
- Disposable monetary income, median
- €24,628
- +27.9% since 2014
- a year, about €2,052 a month
- Finland€26,351
- Households renting
- 38%
- of 27,742 households
- Finland38%
- University or college degree
- 30%
- of residents aged 18 or over
- Finland36%
Postal code areas
Kotka · Price per m², 1 bedroom
€988
* Hatched: figure from a larger area
| 46930Huruksela | €679* | €11.16 | €25,999 | 3% | 207 |
|---|---|---|---|---|---|
| 48100Kotkansaari | €1,413 | €13.30 | €23,442 | 57% | 10,203 |
| 48130Katariina | €679* | €11.16 | €26,379 | 25% | 689 |
| 48200Hovinsaari | €821 | €11.16 | €19,151 | 68% | 1,639 |
| 48210Toukolan Sairaala-Alue | €1,370* | €13.30 | €28,283 | 42% | 223 |
| 48220Metsola | €679* | €11.16 | €24,819 | 34% | 1,294 |
| 48230Korela-Jylppy | €679* | €11.16 | €22,984 | 41% | 1,337 |
| 48300Ruonala | €679* | €11.16 | €28,956 | 6% | 1,236 |
| 48310Mussalo | €1,370* | €13.30 | €31,200 | 21% | 4,313 |
| 48350Karhuvuori | €459 | €11.16 | €18,442 | 63% | 3,102 |
| 48400Sutela | €679* | €11.16 | €27,268 | 15% | 3,898 |
| 48410Kaukola | €679* | €11.16 | €28,930 | 6% | 1,545 |
Housing costs
An old one-bedroom flat sells for €988 per m² on average, 61% less than in Finland. The price per m² has fallen by 4% since 2020.
Prices and rents by flat size
Last four quarters, 2025 Q3–2026 Q2. Source: Statistics Finland
| Flat size | Price per m² | Rent per m² a month | Price-to-rent ratio | Sales |
|---|---|---|---|---|
| Studio | €994 | €15.78 | 5.3 | 62 |
| 1 bedroom | €988 | €12.27 | 6.7 | 244 |
| 2+ bedrooms | €1,050 | €10.44 | 8.4 | 148 |
| All sizes | €1,022 | €12.46 | 6.8 | 493 |
- Maintenance charge
- €4.55
- Average per m² a month, Finland outside Greater Helsinki, 2025
- Gross rental yield
- 14.9%
- 1 bedroom. A year of rent as a share of the price, before costs
Yearly average price of old flats in blocks of flats, all sizes. Source: Statistics Finland.
Differences between the areas
In the most expensive postal code area a one-bedroom flat costs about 3.1 times as much per m² as in the cheapest. The highest median income is about 1.7 times the lowest.
Price per m², 1 bedroom
€459Karhuvuori€1,413KotkansaariKotka €988€459Karhuvuori€1,413KotkansaariMedian disposable income
€18,442Karhuvuori€31,200MussaloKotka €24,628€18,442Karhuvuori€31,200MussaloHouseholds renting
2%Tavastila68%HovinsaariKotka 38%2%Tavastila68%HovinsaariAged 16 to 34
9%Huruksela28%HovinsaariKotka 20%9%Huruksela28%HovinsaariAged 65 or over
20%Mussalo38%KotkansaariKotka 29%20%Mussalo38%KotkansaariFamilies with children
7%Kotkansaari28%MussaloKotka 16%7%Kotkansaari28%MussaloUniversity or college degree
15%Karhuvuori48%MussaloKotka 30%15%Karhuvuori48%MussaloUnemployment
6%Huruksela39%KarhuvuoriKotka 16%6%Huruksela39%KarhuvuoriAverage home size
52.5 m²Hovinsaari106.3 m²KaukolaKotka 73.3 m²52.5 m²Hovinsaari106.3 m²Kaukola
Residents
Age
Older residents stand out: 29% are 65 or over (Finland: 24%).
KotkaFinland
Source: Statistics Finland, Paavo, statistics year 2024 · Share of residents in each age group.
Main activity
Pensioners make up 33% of residents, more than in Finland (26%).
- Kotka38%33%12%
- Finland43%26%15%
Source: Statistics Finland, Paavo, statistics year 2024 · Share of all residents. Unemployment is counted for ages 16 to 64.
- Mean age
- 48.0
- Finland: 44.0
- Unemployed, share of the labour force
- 16%
- Finland: 12%
- Household size
- 1.8
- Finland: 1.9
- Floor area per person
- 42.6 m²
- Finland: 41.6 m²
Households and homes
Tenure
61% of households own their home and 38% rent (Finland: 38% rent).
- Kotka61%38%
- Finland61%38%
Source: Statistics Finland, Paavo, statistics year 2024 · Share of households.
Dwellings
57% of homes are in blocks of flats and 42% in detached, semi-detached or terraced houses. Homes are smaller on average than in Finland (73.3 m² compared with 78.5 m²).
- Kotka57%42%
- Finland48%50%
Source: Statistics Finland, Paavo, statistics year 2024 · Share of dwellings by building type.
Household types
52% of households are people living alone and 16% are families with children.
KotkaFinland
- Living alone52%, Finland 47%
- Living alone, under 3512%, Finland 13%
- Couple under 35, no children3%, Finland 4%
- With children16%, Finland 20%
- With a child under 33%, Finland 4%
- Single parent4%, Finland 4%
- All members aged 18–6446%, Finland 48%
- At least one member 65 or over38%, Finland 33%
Source: Statistics Finland, Paavo, statistics year 2024 · Share of households. A household can belong to several types.
- Average dwelling size
- 73.3 m²
- Finland: 78.5 m²
- Dwellings
- 31,532
- Summer cottages
- 1,845
Education and income
Highest qualification
30% of adults have a university or college degree, fewer than in Finland (36%).
- Kotka22%42%23%
- Finland22%36%22%13%
Source: Statistics Finland, Paavo, statistics year 2024 · Share of residents aged 18 or over.
Income groups
21% of adults are in Finland's lowest-earning fifth and 15% in the highest, close to 20% each.
- Kotka21%63%15%
- Finland20%60%20%
Source: Statistics Finland, Paavo, statistics year 2024 · Share of residents aged 18 or over in each national income group. Across Finland the groups hold 20%, 60% and 20% of adults.
- Inhabitants' disposable monetary income, median
- €24,628
- a year, about €2,052 a month
- Finland: €26,351
- Households' disposable monetary income, median
- €33,461
- a year, about €2,788 a month
- Finland: €37,777
- University or college degree
- 30%
- Finland: 36%
Jobs
Kotka has 21,142 jobs; the largest industry is health and social work (26%). More common than usual is transport and storage: 10% of jobs (Finland: 5%).
Largest industries
KotkaFinland
- Health and social work26%, Finland 19%
- Manufacturing14%, Finland 12%
- Transport and storage10%, Finland 5%
- Wholesale and retail trade9%, Finland 11%
- Administrative and support services9%, Finland 7%
- Education6%, Finland 7%
Source: Statistics Finland, Paavo, statistics year 2024 · Share of jobs with a known industry.
- Jobs located here
- 21,142
- Jobs per resident
- 0.42
- People working in the area divided by people living there
- Finland: 0.43
Sectors
- Kotka21%79%
- Finland20%77%
Source: Statistics Finland, Paavo, statistics year 2024
Change since 2010
The number of residents has fallen by 8% since 2014, while it has grown in Finland. Median income has risen by 28% since 2014, at the same pace as in Finland.
Permanent residents at the end of each year. Source: Statistics Finland, Paavo.
Income after taxes and compulsory payments, including transfers received. Euros of each year, not adjusted for inflation. Source: Statistics Finland, Paavo.
Definitions and sources
- Residents
- People whose permanent home was in the area on 31 December, placed by the coordinates of their building. About 1% of residents have no coordinates and appear only in city figures.
- Income
- Disposable monetary income of residents aged 18 or over: earnings, business and property income and transfers received, minus taxes and other transfers paid. In euros of each year.
- Households
- People living permanently in the same dwelling. Household types overlap.
- Prices
- Average debt-free prices per m² of old flats in housing companies. A postal code area with too few sales gets the figure of its price area or city.
- Rents
- Average rents per m² of non-subsidised flats in new leases, by rent area.
- Small areas
- Statistics Finland withholds details of areas with fewer than 30 residents, households or adults, with fewer than 10 dwellings or only one building, or with fewer than 10 jobs.
Source: Statistics Finland: postal code area statistics (Paavo) 2024, prices of old dwellings, rents of dwellings (CC BY 4.0).