These postcode districts cover Harrogate, Ripon and Knaresborough in North Yorkshire.

HG3 spans across some of the town's westernmost suburbs, some settlements immediately to the south, as well as a large rural area to the north and west.

HG4 covers Ripon and some surrounding settlements and rural areas.

HG5 covers Knaresborough and some rural areas to the north and east.

However, many postcode areas with a greater number of districts cover fewer square miles in total.