Koarnjum, Leeuwarden

Koarnjum Part of the Dokkumer Ie e.o. district in Leeuwarden. Home to 350 residents. €270k WOZ (avg home value). Leefbaarometer 53/90.

Key numbers

  • Population: 350 residents
  • Average home value (WOZ): €270k
  • Leefbaarometer livability: 53/90
  • Crime rate: 17.1 incidents per 1,000 residents (Politie, trailing 12 mo)
  • Nearest primary school: IKC De Swirrel, 1075 m from the buurt centre (DUO)
  • Nearest supermarket: 1861 m from the buurt centre (OSM)
  • Owner-occupied share: 69%
  • Summer heat stress: medium (KEA / RIVM)
  • Pluvial flood risk: low (RIVM)
  • Foundation risk: high (RIVM)

Frequently asked

Is Koarnjum safe?

Koarnjum recorded 6 crime incidents in the last 12 months, or 17.1 per 1,000 residents (Politie open data). Compared to the Leeuwarden median on the safety section of the report.

What is the average home value in Koarnjum?

Average WOZ (tax-assessed value) in Koarnjum is €270k. Recent Leeuwarden sale prices average 22% above WOZ (CBS), so a typical asking price here sits near €328k.

What schools are in Koarnjum?

The nearest primary school is IKC De Swirrel, 1075 m from the buurt centre (DUO scholen register).

Similar neighbourhoods

  • Warten
  • Jirnsum
  • Hijum
  • Reduzum

All Leeuwarden rankings

Data vintage: CBS Kerncijfers (population 1 Jan 2026; other figures latest CBS release), Dutch police trailing 12 months, DUO scholen 2026, Kadaster / OSM current. Report generated 2026-10-26. Every figure is derived, not fabricated — if the pipeline emits null, the tile hides.