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Statistics Norway’s household statistics, updated on 30 September, counted 2,672,051 private households in 2026, up from 2,649,395 in 2025. One-person households rose to 1,103,955 from 1,090,359. The average household size edged down to 2.09 people from 2.10.

The number of married couples with children aged 0–17 was 295,709, down from 298,874; cohabiting couples with children in that age group numbered 189,074, up from 187,939. SSB’s release describes household composition at the annual reference date and does not explain the causes of the changes.