Harrow Postcode HA Postal Area
Postcode HA has post towns
Harrow contains 10 districts
- HA0 (Wembley) Alperton, Sudbury, Sudbury Hill, Wembley Central and North Wembley
- HA1 (Harrow) Harrow, Harrow on the Hill, North Harrow, Northwick Park
- HA2 (Harrow) North Harrow, South Harrow, Rayners Lane (part)
- HA3 (Harrow) Harrow Weald, Kenton, Wealdstone, Belmont (part)
- HA4 (Ruislip) Ruislip
- HA5 (Pinner) Pinner, Eastcote, Hatch End, Rayners Lane (part), Carpenders Park (part)
- HA6 (Northwood) Northwood, Moor Park, Sandy Lodge
- HA7 (Stanmore) Stanmore, Belmont (part)
- HA8 (Edgware) Edgware, Canons Park, Queensbury
- HA9 (Wembley) Wembley, Wembley Park, Wembley Central (East), Preston, Tokyngton
Harrow contains 10 non geographic sectors