is {{Data Finland municipality/population density Hollola|PD/km2}}.

Hollola's neighboring municipalities are Asikkala in the north, Hausjärvi and Hämeenlinna in the west, Lahti in the east and Kärkölä and Orimattila in the south. Hollola belongs to the Lahti region. It is 111 km (68.97 mi) from Hollola