Kerava (Swedish: Kervo) is a city in Central Uusimaa, Finland. It
is the 30th largest municipality in Finland in terms of population
and the fifth smallest in area; Kerava's population density is the
third highest in the country after Helsinki and Kauniainen.
Kerava is part of the Helsinki metropolitan area.
Kerava is located in the province of Uusimaa, north of the Helsinki Metropolitan Area, 27 kilometers north of Helsinki. Kerava belongs to the frame municipalities of the Helsinki metropolitan area. The main line and the Helsinki – Lahti railway, Lahdentie and the Keravanjoki, a tributary of the Vantaanjoki River, pass through the city. The border neighbors are Vantaa in the south, Tuusula in the west and Sipoo in the east. Kerava forms an almost cohesive urban area that can be roughly divided into the city center and Savio in the south and Ahjo in the east. The center of Kerava is surrounded by several radial streets. A pedestrian street, called the longest in Finland (850 m), runs through the center under the track.  (The oldest and longest pedestrian street in Finland is also mentioned in Pori.)