# Concepts

## Overcrowding

According to the norms below, a dwelling is over-crowded if it has

- Norm 1: more than two persons per room, with kitchen included in the number of rooms

- Norm 2: more than two persons per room, with kitchen excluded from the number of rooms

- Norm 3: more than one person per room, with kitchen included in the number of rooms

- Norm 4: more than one person per room, with kitchen excluded from the number of rooms.

The norms applied in the statistics have changed over the decades. Norms 1 and 2 were used in the 1970 and 1975 population censuses. Data based on norm 3 have been produced since 1980. Norm 4 was first introduced in the 1990 census. Norm 4 has also been used in the level of housing classification since the 1990 census. Prior to that norm 3 was used.

#### Statistics using the definition

#### Topic

#### Validity of the definition

- Valid

#### Source organisation

- Tilastokeskus

#### Related concepts

Jaa