The concepts described on these pages are words and expressions used in statistics with a specific, limited meaning. In everyday speech the word may have a different meaning. In connection with each definition you can find information about which sets of statistics use the concept.
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Overcrowding
A household's dwelling is overcrowded, if the number of available rooms is under the number which would be necessary based on its composition. The imputed need for rooms is affected by the number of household members, and for persons aged over 18 whether they live as a couple, and the gender of those aged 12 to 17. In addition to one separate room, a household needs at least one room per two persons. Exceptions are persons aged over 18 living alone, and persons aged 12 to 17 of different genders for whom one room is needed per person.
Statistics using the definition
Validity of the definition
- Valid
Source organisation
- Tilastokeskus
Related concepts
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
Validity of the definition
- Valid
Source organisation
- Tilastokeskus
Related concepts
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