File:NP Postcode Area Map.svg
Indicative postcode districts shown in red, post towns shown in grey.
Equirectangular projection with latitude stretching 160%, WGS84 datum.
Geographic limits:
- Main 1:218,000 map:
- West: 3.378W
- East: 2.546W
- North: 52.021N
- South: 51.501N
Derived from Ordnance Survey OS OpenData.
- Postcode district boundaries within Great Britain derived from Voronoi polygons of OS Code-Point Open unit postcode median coordinates (with coastline clipping and minor adjustments to avoid spurious detached polygons).
- Great Britain coastline, inland water and urban extent data derived from OS Strategi.