Helsinki metropolitan area or Greater Helsinki is the metropolitan area around Helsinki, the capital city of Finland. It also includes the smaller capital region. The terms Helsinki metropolitan area, Greater Helsinki, Capital region and the other terms used are not fixed and may vary in different contexts.

Kerava is a town in Finland, located in the southern interior of the country. Kerava is situated in the centre of the Uusimaa region. The population of Kerava is approximately 38,000. It is the 30th most populous municipality in Finland. Kerava is part of the Helsinki Metropolitan Area, which has approximately 1.58 million inhabitants.