The SO postcode area, also known as the Southampton postcode area,[2] is a group of 23 postcode districts in southern England, within nine post towns. These cover south and central Hampshire, including Southampton, Winchester, Alresford, Brockenhurst, Eastleigh, Lymington, Lyndhurst, Romsey and Stockbridge.
The SO area originally had both single and double-digit postcode districts.[3] From the inception of postcodes in Southampton, "large users" within the SO1 and SO2 postcode areas (which broadly covered the area of the city) were allocated SO9 postcodes.[4] In the early 1990s, a shortage of available postcodes occurred due to increased demand.[5] On 1 December 1993 Royal Mail took the step of dividing each of the existing single-digit districts, the numbers of the new subdivisions containing two digits rather than one. For example, the SO1 and SO2 districts were divided into SO14-19.[6] At the same time, ordinary "geographical" postcodes replaced the SO9 codes. Whilst this created thousands more possible postcode combinations, it resulted in the unusual situation where the centre of the postcode area, Southampton, lacks a district numbered 1. The area is one of only a few in the country where this is the case.
^"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)
^Geographers' A-Z Map Co., Ltd, Street Atlas of Southampton, (1991)
^Kelly's Directory (1970) gives the address of the Head Post Office as 59 High Street, SO9 1AA.
^"Postcodes". Geographical Referencing Learning Resources. National Centre for Research Methods / University of Southampton. Retrieved 11 December 2021.
^Geographers' A-Z Map Co., Ltd, Street Atlas of Southampton, (1991)
Template:Attached KML/SOpostcodearea KML is from Wikidata The SOpostcodearea, also known as the Southampton postcodearea, is a group of 23 postcode districts...
The list of postcodeareas in the United Kingdom is a tabulation of the postcodeareas used by Royal Mail for the purposes of directing mail within the...
Template:Attached KML/E postcodearea KML is from Wikidata The E (Eastern) postcodearea, also known as the London E postcodearea, is the part of the London...
Template:Attached KML/CR postcodearea KML is from Wikidata The CR postcodearea, also known as the Croydon postcodearea, is a group of eight postcode districts in...
Template:Attached KML/BR postcodearea KML is from Wikidata The BR postcodearea, also known as the Bromley postcodearea, is a group of eight postcode districts in...
Template:Attached KML/LS postcodearea KML is from Wikidata The LS postcodearea, also known as the Leeds postcodearea, is a group of 29 postcode districts in England...
Template:Attached KML/L postcodearea KML is from Wikidata The L postcodearea, also known as the Liverpool postcodearea, is a group of postcode districts in North...
full postcode is known as a "postcode unit" and designates an area with several addresses or a single major delivery point. The structure of a postcode is...
KML/KT postcodearea KML is from Wikidata The KT postcodearea, also known as the Kingston upon Thames postcodearea, is a group of 24 postcode districts...
Template:Attached KML/EN postcodearea KML is from Wikidata The EN postcodearea, also known as the Enfield postcodearea, is a group of eleven postcode districts in...
KML/W postcodearea KML is from Wikidata The W (Western and Paddington) postcodearea, also known as the London W postcodearea is a group of postcode districts...
KML/LD postcodearea KML is from Wikidata The LD postcodearea, also known as the Llandrindod Wells postcodearea, is a group of eight postcode districts...
Template:Attached KML/NG postcodearea KML is from Wikidata The NG postcodearea, also known as the Nottingham postcodearea, is a group of 29 postcode districts in...
Template:Attached KML/TW postcodearea KML is from Wikidata The TW postcodearea, also known as the Twickenham postcodearea, is a group of twenty postcode districts...
Template:Attached KML/M postcodearea KML is from Wikidata The M postcodearea, also known as the Manchester postcodearea, is a group of postcode districts in the...
Template:Attached KML/AB postcodearea KML is from Wikidata The AB postcodearea, also known as the Aberdeen postcodearea is a group of 33 postcode districts in...
Template:Attached KML/HD postcodearea KML is from Wikidata The HD postcodearea, also known as the Huddersfield postcodearea, is a group of nine postcode districts...
Template:Attached KML/HX postcodearea KML is from Wikidata The HX postcodearea, also known as the Halifax postcodearea, is a group of seven postcode districts in...
Template:Attached KML/WS postcodearea KML is from Wikidata The WS postcodearea, also known as the Walsall postcodearea, is a group of fifteen postcode districts in...
Template:Attached KML/RM postcodearea KML is from Wikidata The RM postcodearea, also known as the Romford postcodearea, is a group of twenty postcode districts in...
Template:Attached KML/IG postcodearea KML is from Wikidata The IG postcodearea, also known as the Ilford postcodearea, is a group of eleven postcode districts in...
Template:Attached KML/HR postcodearea KML is from Wikidata The HR postcodearea, also known as the Hereford postcodearea, is a group of nine postcode districts in...
Template:Attached KML/KY postcodearea KML is from Wikidata The KY postcodearea, also known as the Kirkcaldy postcodearea, is a group of sixteen postcode districts...
Template:Attached KML/S postcodearea KML is from Wikidata The S postcodearea, also known as the Sheffield postcodearea, is a group of postcode districts in England...
Template:Attached KML/MK postcodearea KML is from Wikidata The MK postcodearea, also known as the Milton Keynes postcodearea, is a group of 26 postcode districts...
Template:Attached KML/DA postcodearea KML is from Wikidata The DA postcodearea, also known as the Dartford postcodearea, is a group of eighteen postcode districts...
Template:Attached KML/B postcodearea KML is from Wikidata The B postcodearea, also known as the Birmingham postcodearea, is a group of 79 postcode districts in...
Template:Attached KML/LL postcodearea KML is from Wikidata The LL postcodearea, also known as the Llandudno postcodearea, is a group of 67 postcode districts, within...
Global Information
