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Herajoki

11710 · Riihimäki · Kanta-Häme

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11710 Herajoki

In brief

Herajoki (11710) has 2,932 residents, 10% of the population of Riihimäki. The age structure is close to Riihimäki's: 18% of residents are aged 16 to 34 and 23% are 65 or over. 37% of households are people living alone and 24% are families with children.

74% of homes are detached, semi-detached or terraced houses and 25% are in blocks of flats. Homes are larger on average than in Riihimäki (90.0 m² compared with 75.1 m²). 70% of households own their home and 30% rent (Riihimäki: 37% rent). An old one-bedroom flat sells for €1,391 per m² on average, 6% more than the average in Riihimäki. The price is the highest among the postal code areas of Riihimäki. The price per m² has fallen by 8% since 2017. The price equals 9.2 years of rent at €12.59 per m² a month in new leases.

The median disposable monetary income of residents is €28,120 a year, about €2,343 a month: 6% higher than in Riihimäki and 7% higher than in Finland. 9% of the labour force is unemployed, less than in Riihimäki (12%). The area has 2,604 jobs; the largest industry is wholesale and retail trade (41%). Its share is clearly higher than in Riihimäki (16%).

The number of residents has fallen by 9% since 2014, more than in Riihimäki.

Rank among the city's areas

  • Homes in small houses

    74%

    The highest of 6 areas in Riihimäki

    Riihimäki 43%

  • Unemployment

    9%

    The lowest of 6 areas in Riihimäki

    Riihimäki 12%

  • Living alone

    37%

    2nd lowest of 6 areas in Riihimäki

    Riihimäki 49%

  • Students

    7%

    2nd lowest of 6 areas in Riihimäki

    Riihimäki 8%

Key figures

Residents and households 2024, prices and rents from the latest quarters

Price per m², 1 bedroom
€1,391
-7.5% since 2017
Riihimäki€1,314
Rent per m², 1 bedroom
€12.59
Figure for Riihimäki
Riihimäki€12.71
Residents
2,932
-9.0% since 2014
Mean age44.0
Disposable monetary income, median
€28,120
+24.1% since 2014
a year, about €2,343 a month
Riihimäki€26,461
Finland€26,351
Households renting
30%
of 1,374 households
Riihimäki37%
Finland38%
University or college degree
32%
of residents aged 18 or over
Riihimäki31%
Finland36%

Housing costs

An old one-bedroom flat sells for €1,391 per m² on average, 6% more than the average in Riihimäki. The price is the highest among the postal code areas of Riihimäki. The price per m² has fallen by 8% since 2017.

Price per m²

€1,391

Postal code area 11710
Sales of old flats in blocks of flats, 2025, 7 sales

Rent per m² a month

€12.59

Figure for Riihimäki
New leases, non-subsidised flats, 2026 Q3

Riihimäki: €12.71

Price-to-rent ratio
9.2 years
Riihimäki: 8.6
Gross rental yield
10.9%
Riihimäki: 11.6%
Maintenance charge
€4.55
Average per m² a month, Finland outside Greater Helsinki, 2025
Change a year
10 yrs5 yrsPrice-2.1%-3.1%Rent+0.8%+1.0%
Average of the price index (Riihimäki) and rent index (Riihimäki)

Source: Statistics Finland

Price per m² by flat size1 bedroom2+ bedrooms

Yearly average price of old flats in blocks of flats in this postal code area. Gaps are years with too few sales to publish. Source: Statistics Finland.

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Compared with the other areas

In none of these 9 figures is the area among the three highest or lowest postal code areas of Riihimäki.

  • Price per m², 1 bedroom1/4

    €1,185Peltosaari-Patastenmäki
    Riihimäki €1,314Herajoki €1,391
    €1,391Herajoki
    €1,185Peltosaari-Patastenmäki€1,391Herajoki

  • Median disposable income2/6

    €24,756Riihimäki Keskus
    Riihimäki €26,461Herajoki €28,120
    €29,308Taka-Kasarmi
    €24,756Riihimäki Keskus€29,308Taka-Kasarmi

  • Households renting4/6

    17%Taka-Kasarmi
    Riihimäki 37%Herajoki 30%
    47%Riihimäki Keskus
    17%Taka-Kasarmi47%Riihimäki Keskus

  • Aged 16 to 344/6

    15%Taka-Kasarmi
    Riihimäki 21%Herajoki 18%
    26%Riihimäki Keskus
    15%Taka-Kasarmi26%Riihimäki Keskus

  • Aged 65 or over3/6

    21%Taka-Kasarmi
    Riihimäki 25%Herajoki 23%
    29%Riihimäki Keskus
    21%Taka-Kasarmi29%Riihimäki Keskus

  • Families with children2/6

    12%Riihimäki Keskus
    Riihimäki 19%Herajoki 24%
    25%Taka-Kasarmi
    12%Riihimäki Keskus25%Taka-Kasarmi

  • University or college degree3/6

    29%Riihimäki Keskus
    Riihimäki 31%Herajoki 32%
    32%Taka-Kasarmi
    29%Riihimäki Keskus32%Taka-Kasarmi

  • Unemployment6/6

    9%Herajoki
    Riihimäki 12%Herajoki 9%
    13%Riihimäki Keskus
    9%Herajoki13%Riihimäki Keskus

  • Average home size1/6

    60.7 m²Riihimäki Keskus
    Riihimäki 75.1 m²Herajoki 90.0 m²
    90.0 m²Herajoki
    60.7 m²Riihimäki Keskus90.0 m²Herajoki

Residents

Age

The age structure is close to Riihimäki's: 18% of residents are aged 16 to 34 and 23% are 65 or over.

HerajokiRiihimäki

Source: Statistics Finland, Paavo, statistics year 2024 · Share of residents in each age group.

Main activity

Employed people make up 44% of residents, more than in Riihimäki (42%).

  • Herajoki44%25%16%
  • Riihimäki42%27%14%
  • Finland43%26%15%

Source: Statistics Finland, Paavo, statistics year 2024 · Share of all residents. Unemployment is counted for ages 16 to 64.

Mean age
44.0
Riihimäki: 45.0
Unemployed, share of the labour force
9%
Riihimäki: 12%
Household size
2.1
Riihimäki: 1.9
Floor area per person
43.0 m²
Riihimäki: 40.9 m²

Households and homes

Tenure

70% of households own their home and 30% rent (Riihimäki: 37% rent).

  • Herajoki70%30%
  • Riihimäki63%37%
  • Finland61%38%

Source: Statistics Finland, Paavo, statistics year 2024 · Share of households.

Dwellings

74% of homes are detached, semi-detached or terraced houses and 25% are in blocks of flats. Homes are larger on average than in Riihimäki (90.0 m² compared with 75.1 m²).

  • Herajoki25%74%
  • Riihimäki56%43%
  • Finland48%50%

Source: Statistics Finland, Paavo, statistics year 2024 · Share of dwellings by building type.

Household types

37% of households are people living alone and 24% are families with children.

HerajokiRiihimäki

  • Living alone37%, Riihimäki 49%
  • Living alone, under 356%, Riihimäki 12%
  • Couple under 35, no children2%, Riihimäki 3%
  • With children24%, Riihimäki 19%
  • With a child under 34%, Riihimäki 3%
  • Single parent6%, Riihimäki 5%
  • All members aged 18–6442%, Riihimäki 47%
  • At least one member 65 or over34%, Riihimäki 34%

Source: Statistics Finland, Paavo, statistics year 2024 · Share of households. A household can belong to several types.

Average dwelling size
90.0 m²
Riihimäki: 75.1 m²
Dwellings
1,525
Summer cottages
364

Education and income

Highest qualification

32% of adults have a university or college degree, about the same as in Riihimäki (31%).

  • Herajoki21%43%24%
  • Riihimäki23%40%23%
  • Finland22%36%22%13%

Source: Statistics Finland, Paavo, statistics year 2024 · Share of residents aged 18 or over.

Income groups

16% of adults are in Finland's lowest-earning fifth and 22% in the highest, close to 20% each.

  • Herajoki16%62%22%
  • Riihimäki19%63%18%
  • 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
€28,120
a year, about €2,343 a month
Riihimäki: €26,461
Households' disposable monetary income, median
€45,795
a year, about €3,816 a month
Riihimäki: €36,084
University or college degree
32%
Riihimäki: 31%

Jobs

The area has 2,604 jobs; the largest industry is wholesale and retail trade (41%). Its share is clearly higher than in Riihimäki (16%).

Largest industries

HerajokiRiihimäki

  • Wholesale and retail trade41%, Riihimäki 16%
  • Manufacturing31%, Riihimäki 18%
  • Administrative and support services6%, Riihimäki 6%
  • Construction6%, Riihimäki 6%
  • Accommodation and food services3%, Riihimäki 3%
  • Public administration and defence3%, Riihimäki 8%

Source: Statistics Finland, Paavo, statistics year 2024 · Share of jobs with a known industry.

Jobs located here
2,604
Jobs per resident
0.89
People working in the area divided by people living there
Riihimäki: 0.41

Sectors

  • Herajoki39%60%
  • Riihimäki28%71%
  • 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 Riihimäki. Median income has risen by 24% since 2014, at the same pace as in Riihimäki.

Residents

Permanent residents at the end of each year. Source: Statistics Finland, Paavo.

Disposable monetary income, medianHerajokiRiihimäkiFinland

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).