Siikajoki

Siikajoki
Municipality
Siikajoen kunta
Siikajoki kommun
Location of Siikajoki in Finland
Coordinates: 64°40′N 025°06′E / 64.667°N 25.100°E / 64.667; 25.100
Country Finland
RegionNorth Ostrobothnia
Sub-regionRaahe
Charter1868
SeatRuukki
Government
  Municipality managerKaisu Tuomi
Area
 (2018-01-01)
  Total
1,653.89 km2 (638.57 sq mi)
  Land1,055.46 km2 (407.52 sq mi)
  Water601.94 km2 (232.41 sq mi)
  Rank74th largest in Finland
Population
 (2025-03-31)
  Total
4,797
  Rank170th largest in Finland
  Density4.54/km2 (11.8/sq mi)
Population by native language
  Finnish98.1% (official)
  Others1.9%
Population by age
  0 to 1421.2%
  15 to 6454.1%
  65 or older24.7%
Time zoneUTC+02:00 (EET)
  Summer (DST)UTC+03:00 (EEST)
Websitewww.siikajoki.fi

Siikajoki is a municipality of Finland. It is part of the North Ostrobothnia region. The municipality has a population of 4,797 (31 March 2025) and covers an area of 1,653.89 square kilometres (638.57 sq mi) of which 601.94 km2 (232.41 sq mi) is water. The population density is 4.54 inhabitants per square kilometre (11.8/sq mi). Neighbour municipalities are Hailuoto, Liminka, Lumijoki, Raahe and Siikalatva.

The municipality is unilingually Finnish.