In brief
Harjamäki (71870) has 423 residents, 2% of the population of Siilinjärvi. It is the smallest among the postal code areas of Siilinjärvi. Families stand out: 37% of households have children (Siilinjärvi: 25%). This is the 2nd highest share among the postal code areas of Siilinjärvi. 37% of households are families with children (Siilinjärvi: 25%) and 37% live alone.
60% of homes are detached, semi-detached or terraced houses and 34% are in blocks of flats. The average home is 93.7 m². 71% of households own their home and 29% rent (Siilinjärvi: 23% rent). This is the 2nd highest renting share among the postal code areas of Siilinjärvi. There are too few sales for the area to have its own price, so the price of €1,396 per m² is the average of old flats of all sizes in blocks of flats in the whole municipality (2025). The price equals 8.4 years of rent at €13.83 per m² a month in new leases.
The median disposable monetary income of residents is €30,151 a year, about €2,513 a month: 10% higher than in Siilinjärvi and 14% higher than in Finland. It is the 2nd highest among the postal code areas of Siilinjärvi. 7% of the labour force is unemployed, less than in Siilinjärvi (10%). The area is a place of work: it has 517 jobs, 1.22 for every resident.
The number of residents has fallen by 9% since 2014, more than in Siilinjärvi.
Rank among the city's areas
Jobs per resident
1.22
The highest of 8 areas in Siilinjärvi
Siilinjärvi 0.34
Aged 65 or over
10%
The lowest of 8 areas in Siilinjärvi
Siilinjärvi 23%
Students
11%
The highest of 8 areas in Siilinjärvi
Siilinjärvi 7%
Homes in small houses
60%
The lowest of 8 areas in Siilinjärvi
Siilinjärvi 76%
Key figures
Residents and households 2024, prices and rents from the latest quarters
- Price per m², 1 bedroom
- €1,396
- Figure for Siilinjärvi
- Siilinjärvi–
- Rent per m², 1 bedroom
- €13.83
- Figure for Pohjois-Savo
- Siilinjärvi€13.83
- Residents
- 423
- -9.2% since 2014
- Mean age36.0
- Disposable monetary income, median
- €30,151
- +34.6% since 2014
- a year, about €2,513 a month
- Siilinjärvi€27,512
- Finland€26,351
- Households renting
- 29%
- of 171 households
- Siilinjärvi23%
- Finland38%
- University or college degree
- 45%
- of residents aged 18 or over
- Siilinjärvi36%
- Finland36%
Prices, rents and charges
There are too few sales for the area to have its own price, so the price of €1,396 per m² is the average of old flats of all sizes in blocks of flats in the whole municipality (2025). The price equals 8.4 years of rent at €13.83 per m² a month in new leases.
Price per m²
€1,396
Siilinjärvi, all flat sizes
Sales of old flats in blocks of flats, 2025, 73 sales
Rent per m² a month
€13.83
Figure for Pohjois-Savo
New leases, non-subsidised flats, 2026 Q3
Siilinjärvi: €13.83
- Price-to-rent ratio
- 8.4 years
- Siilinjärvi: –
- Gross rental yield
- 11.9%
- Siilinjärvi: –
- Maintenance charge
- €4.55
- Average per m² a month, Finland outside Greater Helsinki, 2025
- Change a year
- 10 yrs5 yrsPrice-2.6%-2.1%Rent+1.0%+1.0%
- Average of the price index (Pohjois-Savo) and rent index (Pohjois-Savo)
Source: Statistics Finland
Statistics Finland has published no yearly prices for this postal code area in recent years, because there were too few sales.
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See the area's housing marketCompared with the other areas
The area is among the three highest or lowest postal code areas of Siilinjärvi in 7 of 8 figures: median income, households renting, aged 16 to 34, aged 65 or over, families with children, university or college degree, unemployment.
Median disposable income2/8
€26,047Leppäkaarre€30,999ToivalaSiilinjärvi €27,512Harjamäki €30,151€26,047Leppäkaarre€30,999ToivalaHouseholds renting2/8
2%Kuuslahti29%Siilinjärvi KeskusSiilinjärvi 23%Harjamäki 29%2%Kuuslahti29%Siilinjärvi KeskusAged 16 to 341/8
16%Hamula22%HarjamäkiSiilinjärvi 18%Harjamäki 22%16%Hamula22%HarjamäkiAged 65 or over8/8
10%Harjamäki29%VuorelaSiilinjärvi 23%Harjamäki 10%10%Harjamäki29%VuorelaFamilies with children2/8
20%Vuorela38%ToivalaSiilinjärvi 25%Harjamäki 37%20%Vuorela38%ToivalaUniversity or college degree2/8
25%Kuuslahti48%ToivalaSiilinjärvi 36%Harjamäki 45%25%Kuuslahti48%ToivalaUnemployment6/8
5%Hamula13%LeppäkaarreSiilinjärvi 10%Harjamäki 7%5%Hamula13%LeppäkaarreAverage home size5/8
80.5 m²Vuorela123.8 m²HamulaSiilinjärvi 91.6 m²Harjamäki 93.7 m²80.5 m²Vuorela123.8 m²Hamula
Residents
Age
Families stand out: 37% of households have children (Siilinjärvi: 25%). This is the 2nd highest share among the postal code areas of Siilinjärvi.
HarjamäkiSiilinjärvi
Source: Statistics Finland, Paavo, statistics year 2024 · Share of residents in each age group.
Main activity
Pensioners make up 12% of residents, less than in Siilinjärvi (26%).
- Harjamäki48%11%12%23%
- Siilinjärvi43%26%18%
- Finland43%26%15%
Source: Statistics Finland, Paavo, statistics year 2024 · Share of all residents. Unemployment is counted for ages 16 to 64.
- Mean age
- 36.0
- Siilinjärvi: 44.0
- Unemployed, share of the labour force
- 7%
- Siilinjärvi: 10%
- Household size
- 2.4
- Siilinjärvi: 2.2
- Floor area per person
- 40.7 m²
- Siilinjärvi: 43.4 m²
Households and homes
Tenure
71% of households own their home and 29% rent (Siilinjärvi: 23% rent). This is the 2nd highest renting share among the postal code areas of Siilinjärvi.
- Harjamäki71%29%
- Siilinjärvi76%23%
- Finland61%38%
Source: Statistics Finland, Paavo, statistics year 2024 · Share of households.
Dwellings
60% of homes are detached, semi-detached or terraced houses and 34% are in blocks of flats. The average home is 93.7 m².
- Harjamäki34%60%
- Siilinjärvi23%76%
- Finland48%50%
Source: Statistics Finland, Paavo, statistics year 2024 · Share of dwellings by building type.
Household types
37% of households are families with children (Siilinjärvi: 25%) and 37% live alone.
HarjamäkiSiilinjärvi
- Living alone37%, Siilinjärvi 37%
- Living alone, under 3516%, Siilinjärvi 6%
- Couple under 35, no children4%, Siilinjärvi 3%
- With children37%, Siilinjärvi 25%
- With a child under 32%, Siilinjärvi 5%
- Single parent7%, Siilinjärvi 5%
- All members aged 18–6447%, Siilinjärvi 40%
- At least one member 65 or over18%, Siilinjärvi 35%
Source: Statistics Finland, Paavo, statistics year 2024 · Share of households. A household can belong to several types.
- Average dwelling size
- 93.7 m²
- Siilinjärvi: 91.6 m²
- Dwellings
- 193
- Summer cottages
- 1
Education and income
Highest qualification
45% of adults have a university or college degree, more than in Siilinjärvi (36%). This is the 2nd highest share among the postal code areas of Siilinjärvi.
- Harjamäki13%38%27%18%
- Siilinjärvi16%45%26%10%
- Finland22%36%22%13%
Source: Statistics Finland, Paavo, statistics year 2024 · Share of residents aged 18 or over.
Income groups
18% of adults are in Finland's lowest-earning fifth and 25% in the highest, close to 20% each.
- Harjamäki18%57%25%
- Siilinjärvi15%66%19%
- 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
- €30,151
- a year, about €2,513 a month
- Siilinjärvi: €27,512
- Households' disposable monetary income, median
- €46,965
- a year, about €3,914 a month
- Siilinjärvi: €44,167
- University or college degree
- 45%
- Siilinjärvi: 36%
Jobs
The area is a place of work: it has 517 jobs, 1.22 for every resident.
Largest industries
HarjamäkiSiilinjärvi
- Health and social work38%, Siilinjärvi 18%
- Other services30%, Siilinjärvi 4%
- Education8%, Siilinjärvi 7%
- Public administration and defence7%, Siilinjärvi 10%
- Professional, scientific and technical5%, Siilinjärvi 2%
- Construction4%, Siilinjärvi 9%
Source: Statistics Finland, Paavo, statistics year 2024 · Share of jobs with a known industry.
- Jobs located here
- 517
- Jobs per resident
- 1.22
- People working in the area divided by people living there
- Siilinjärvi: 0.34
Sectors
- Harjamäki90%
- Siilinjärvi29%67%
- Finland20%77%
Source: Statistics Finland, Paavo, statistics year 2024
Change since 2010
The number of residents has fallen by 9% since 2014, more than in Siilinjärvi. Median income has risen by 35% since 2014, faster than in Siilinjärvi (24%).
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.
Neighbouring areas
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).