Articles
Analyses of Finland's ~3,000 postal code areas, built from open government data. Every chart and dataset here may be republished with attribution.
Finland's ten most family-friendly areas hold 0.6% of its families
A family-friendliness score measures what share of an area's households are families, not how many there are. The ten highest-scoring areas contain 2811 households with children — 0.6 percent of the 510,584 in the comparison.
What a family-friendliness score is mostly made of: children and houses
Suomiatlas’s own 0–100 family-friendliness score combines five signals about household composition and space. In 2024 it ran from 81 (Lepsämä, Nurmijärvi) to 7 (Otaniemi, Espoo) across the 1093 areas with at least 1000 residents.
Finland's fastest-rising postal code area is Koskela in Helsinki
Suomiatlas's up-and-coming composite for 2024 puts Koskela in Helsinki first among 1,080 postal code areas with at least 1,000 residents. Five of the top ten are in Helsinki or Espoo. The score combines five five-year signals; housing €/m² is not one of them.
WHO PM2.5 guideline exceeded in 15 of 33 Finnish municipalities in 2025
In 2025 the WHO 2021 PM2.5 annual guideline of 5 µg/m³ was exceeded in 15 of the 33 Finnish municipalities where an annual mean could be computed. The cleanest was Ranua at 2.4 µg/m³, the highest Mariehamn at 6.6 µg/m³.
Finland's population grew in 623 postal code areas and fell in 2,374
Of Finland's 3,018 postal code areas, 623 grew and 2,374 shrank between 2010 and 2024. The 51 that gained the most people added 242,033 between them, while the sum across all 3,018 areas rose by 241,311.
Nearly a third of homes in four Rautavaara postal areas have no permanent resident
336 of 1,110 dwellings have no resident household — 30.3 %, against 11.9 % nationally, and almost double the 2014 share. Four of Rautavaara's five postal areas.
Finnish studio flats have lost a fifth of their real value since 2022
The average studio flat in Finland is down 21.0 % in real terms between 2022 and 2025. The smaller the home, the harder the fall.
Finland's fastest-growing districts are falling behind on income
Finnoo in Espoo more than doubled its population in five years, while its median income fell 4.75 percentage points a year behind the national trend.