Siikajoki

Siikajoki is a municipality of Finland. It is part of the North Ostrobothnia region. The municipality has a population of 
() and covers an area of of
which 
is water. The population density is
. Neighbour municipalities are Hailuoto, Liminka, Lumijoki, Raahe and Siikalatva.
The municipality is unilingually Finnish.
History.
The current municipality of Siikajoki consists of three previous municipalities of Paavola and Revonlahti, that were merged into the municipality of Ruukki in 1973, and the municipality of Siikajoki founded in 1868. The municipalities of Ruukki and Siikajoki were disbanded and replaced by the new municipality of Siikajoki on January 1, 2007.