Jirnsum
| Jirnsum | |
|---|---|
| Village | |
| Jirnsum Church | |
| Location in the former Boarnsterhim municipality | |
| Coordinates: 53°4′41″N 5°47′29″E / 53.07806°N 5.79139°E | |
| Country | Netherlands | 
| Province | Friesland | 
| Municipality | Leeuwarden | 
| Area | |
|  • Total | 10.11 km2 (3.90 sq mi) | 
| Elevation | 0.4 m (1.3 ft) | 
| Population  (2021) | |
|  • Total | 1,360 | 
| • Density | 130/km2 (350/sq mi) | 
| Postal code | 9011 | 
| Dialing code | 0566 | 
Jirnsum (Dutch: Irnsum) is a village in Leeuwarden municipality in the province of Friesland, the Netherlands. It had a population of around 1,360 in January 2017.