Postcode district boundaries:
|Postcode area name|
|Statistics as at May 2020|
The SG postcode area, also known as the Stevenage postcode area, is a group of nineteen postcode districts in England, within fifteen post towns. These cover north Hertfordshire (including Stevenage, Baldock, Buntingford, Hertford, Hitchin, Knebworth, Letchworth, Much Hadham, Royston and Ware) and east Bedfordshire (including Arlesey, Biggleswade, Henlow, Sandy and Shefford), plus a small part of south-west Cambridgeshire and a very small part of Essex.
The approximate coverage of the postcode districts:
- "ONS Postcode Directory Version Notes" (ZIP). National Statistics Postcode Products. Office for National Statistics. May 2020. Table 2. Retrieved 19 June 2020. Coordinates from mean of unit postcode points, "Code-Point Open". OS OpenData. Ordnance Survey. February 2012. Retrieved 21 April 2012.
- Royal Mail, Address Management Guide, (2004)
- Royal Mail, Postal Address Book: Anglia 2, Edition H, 2003
- "Non Geographic Codes" (PDF). Royal Mail Address Management Unit. July 2012. Archived from the original (PDF) on 16 September 2012. Retrieved 20 December 2012.
- "New sectors and localities to 14 December 2012" (PDF). Royal Mail Address Management Unit. 20 December 2012. Archived from the original (PDF) on 2 February 2015. Retrieved 20 December 2012.