SO20 postcode district: Winchester and around, Hampshire

SO20 is a postcode district in Hampshire, with 346 postcodes in use in 2 sectors. It has postcodes in Winchester. It is split between 2 councils: Test Valley (342 postcodes) and Winchester (4).

Postcodes in use
346
Sectors
2
Councils
2 councils
Places
Winchester

Source: ONS Postcode Directory, August 2026, loaded 20 October 2026.

Every postcode in SO20, by gigabit broadband

Map of every postcode in SO20, by gigabit broadband Of the 346 postcodes in SO20 that ONS places, 125 have no home or business that can get gigabit, 108 have some that can, 108 can all get it and 5 have no Ofcom figure. 2 groups of postcodes without gigabit are outlined: 21 postcodes without gigabit; 10 postcodes without gigabit. Places named: Winchester, Kings Worthy. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A30A34A272 SO20 6FF: no Ofcom figureSO20 6WP: no Ofcom figureSO20 6AL: gigabit for allSO20 6AP: gigabit for allSO20 6AQ: gigabit for allSO20 6AU: gigabit for allSO20 6AW: gigabit for allSO20 6AY: gigabit for allSO20 6BA: gigabit for allSO20 6BP: gigabit for allSO20 6BT: gigabit for allSO20 6BW: gigabit for allSO20 6DF: gigabit for allSO20 6DH: gigabit for allSO20 6DQ: gigabit for allSO20 6DR: gigabit for allSO20 6DS: gigabit for allSO20 6DT: gigabit for allSO20 6DZ: gigabit for allSO20 6EA: gigabit for allSO20 6ED: gigabit for allSO20 6EF: gigabit for allSO20 6EG: gigabit for allSO20 6EQ: gigabit for allSO20 6HJ: gigabit for allSO20 6HS: gigabit for allSO20 6JY: gigabit for allSO20 6NW: gigabit for allSO20 6PD: gigabit for allSO20 6PJ: gigabit for allSO20 6PL: gigabit for allSO20 6PS: gigabit for allSO20 6PT: gigabit for allSO20 6PU: gigabit for allSO20 6PY: gigabit for allSO20 6QL: gigabit for allSO20 6QP: gigabit for allSO20 6RA: gigabit for allSO20 6RX: gigabit for allSO20 6SA: gigabit for allSO20 8AB: gigabit for allSO20 8BA: gigabit for allSO20 8BB: gigabit for allSO20 8BY: gigabit for allSO20 8GT: gigabit for allSO20 8JL: gigabit for allSO20 8JN: gigabit for allSO20 8JP: gigabit for allSO20 8QA: gigabit for allSO20 6AA: some gigabitSO20 6AD: some gigabitSO20 6AN: some gigabitSO20 6AR: some gigabitSO20 6AZ: some gigabitSO20 6BB: some gigabitSO20 6BE: some gigabitSO20 6BG: some gigabitSO20 6BH: some gigabitSO20 6BJ: some gigabitSO20 6BL: some gigabitSO20 6BU: some gigabitSO20 6DJ: some gigabitSO20 6DP: some gigabitSO20 6DU: some gigabitSO20 6DX: some gigabitSO20 6EH: some gigabitSO20 6EJ: some gigabitSO20 6EL: some gigabitSO20 6ES: some gigabitSO20 6EU: some gigabitSO20 6EX: some gigabitSO20 6EZ: some gigabitSO20 6HA: some gigabitSO20 6HE: some gigabitSO20 6JH: some gigabitSO20 6LE: some gigabitSO20 6LF: some gigabitSO20 6LH: some gigabitSO20 6LJ: some gigabitSO20 6LL: some gigabitSO20 6LN: some gigabitSO20 6LP: some gigabitSO20 6LQ: some gigabitSO20 6NG: some gigabitSO20 6NJ: some gigabitSO20 6NL: some gigabitSO20 6PF: some gigabitSO20 6PH: some gigabitSO20 6PP: some gigabitSO20 6QF: some gigabitSO20 6QH: some gigabitSO20 6QR: some gigabitSO20 6QT: some gigabitSO20 6QW: some gigabitSO20 6QZ: some gigabitSO20 6RQ: some gigabitSO20 8AA: some gigabitSO20 8AD: some gigabitSO20 8AN: some gigabitSO20 8AX: some gigabitSO20 8AY: some gigabitSO20 8AZ: some gigabitSO20 8BD: some gigabitSO20 8BE: some gigabitSO20 8BG: some gigabitSO20 8BU: some gigabitSO20 8BX: some gigabitSO20 8BZ: some gigabitSO20 8DF: some gigabitSO20 8DJ: some gigabitSO20 8DP: some gigabitSO20 8DR: some gigabitSO20 8DS: some gigabitSO20 8DT: some gigabitSO20 8DU: some gigabitSO20 8EY: some gigabitSO20 8JJ: some gigabitSO20 8JQ: some gigabitSO20 8LA: some gigabitSO20 8LB: some gigabitSO20 8QP: some gigabitSO20 6AG: some gigabitSO20 6NY: some gigabitSO20 6LT: some gigabitSO20 6LY: some gigabitSO20 6NR: some gigabitSO20 6PN: some gigabitSO20 8BP: some gigabitSO20 8QW: some gigabitSO20 6AX: no gigabitSO20 6BD: no gigabitSO20 6BN: no gigabitSO20 6BS: no gigabitSO20 6BX: no gigabitSO20 6BY: no gigabitSO20 6BZ: no gigabitSO20 6DA: no gigabitSO20 6DB: no gigabitSO20 6DD: no gigabitSO20 6DE: no gigabitSO20 6DG: no gigabitSO20 6DL: no gigabitSO20 6DN: no gigabitSO20 6DW: no gigabitSO20 6EN: no gigabitSO20 6EW: no gigabitSO20 6FE: no gigabitSO20 6HH: no gigabitSO20 6HN: no gigabitSO20 6HP: no gigabitSO20 6HW: no gigabitSO20 6HZ: no gigabitSO20 6JA: no gigabitSO20 6JB: no gigabitSO20 6JE: no gigabitSO20 6JF: no gigabitSO20 6JG: no gigabitSO20 6JJ: no gigabitSO20 6JP: no gigabitSO20 6JQ: no gigabitSO20 6JR: no gigabitSO20 6JS: no gigabitSO20 6JT: no gigabitSO20 6JU: no gigabitSO20 6JX: no gigabitSO20 6LG: no gigabitSO20 6LZ: no gigabitSO20 6NA: no gigabitSO20 6PG: no gigabitSO20 6PQ: no gigabitSO20 6QA: no gigabitSO20 6QG: no gigabitSO20 6QJ: no gigabitSO20 6QN: no gigabitSO20 6QS: no gigabitSO20 6QU: no gigabitSO20 6QX: no gigabitSO20 6QY: no gigabitSO20 6RE: no gigabitSO20 6RF: no gigabitSO20 6RH: no gigabitSO20 6RJ: no gigabitSO20 6RL: no gigabitSO20 8AG: no gigabitSO20 8BH: no gigabitSO20 8BL: no gigabitSO20 8DG: no gigabitSO20 8DH: no gigabitSO20 8DL: no gigabitSO20 8DN: no gigabitSO20 8DQ: no gigabitSO20 8DX: no gigabitSO20 8DY: no gigabitSO20 8DZ: no gigabitSO20 8EA: no gigabitSO20 8EE: no gigabitSO20 8EF: no gigabitSO20 8EH: no gigabitSO20 8EJ: no gigabitSO20 8EL: no gigabitSO20 8EN: no gigabitSO20 8EQ: no gigabitSO20 8ER: no gigabitSO20 8ET: no gigabitSO20 8EZ: no gigabitSO20 8FB: no gigabitSO20 8GA: no gigabitSO20 8GR: no gigabitSO20 8HA: no gigabitSO20 8HB: no gigabitSO20 8HE: no gigabitSO20 8HF: no gigabitSO20 8HN: no gigabitSO20 8HQ: no gigabitSO20 8HT: no gigabitSO20 8HU: no gigabitSO20 8HW: no gigabitSO20 8HX: no gigabitSO20 8HY: no gigabitSO20 8HZ: no gigabitSO20 8JA: no gigabitSO20 8JB: no gigabitSO20 8JH: no gigabitSO20 8JS: no gigabitSO20 8JT: no gigabitSO20 8JU: no gigabitSO20 8JZ: no gigabitSO20 8LL: no gigabitSO20 6AJ: no gigabitSO20 6FD: no gigabitSO20 8BF: no gigabitSO20 8BT: no gigabitSO20 8DD: no gigabitSO20 8EP: no gigabitSO20 8QX: no gigabit WinchesterKings Worthy 21 postcodes without gigabit, outlined: this goes to SO20 8JE, the one nearest the middle of them21 postcodes without gigabit10 postcodes without gigabit, outlined: this goes to SO20 8EZ, the one nearest the middle of them10 postcodes without gigabit Map of every postcode in SO20, by gigabit broadband Of the 346 postcodes in SO20 that ONS places, 125 have no home or business that can get gigabit, 108 have some that can, 108 can all get it and 5 have no Ofcom figure. 2 groups of postcodes without gigabit are outlined: 21 postcodes without gigabit; 10 postcodes without gigabit. Places named: Winchester, Kings Worthy. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 5 km. WinchesterKings Worthy 21 postcodes without gigabit, outlined: this goes to SO20 8JE, the one nearest the middle of them21 postcodes without gigabit10 postcodes without gigabit, outlined: this goes to SO20 8EZ, the one nearest the middle of them10 postcodes without gigabit
  • No home or business can get gigabit: 125
  • Some can get gigabit: 108
  • Every home and business can get gigabit: 108
  • Ofcom gives no figure: 5
  • Outline: where 5 or more postcodes without gigabit lie together

Of the 346 postcodes in SO20 that ONS places, 125 have no home or business that can get gigabit, 108 have some that can, 108 can all get it and 5 have no Ofcom figure.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. A dashed outline shows where 5 or more lie within 260 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

The middle of its postcodes: latitude 51.1164, longitude -1.5163. Open this area on OpenStreetMap

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; Ofcom Connected Nations, Connected Nations, Spring 2026; roads, rivers and built-up areas: Ordnance Survey open maps. Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre.

Postcodes without gigabit

125 postcodes here have no gigabit. These are the 12 first in postcode order.

SO20 6AJSO20 6AXSO20 6BDSO20 6BNSO20 6BSSO20 6BXSO20 6BYSO20 6BZSO20 6DASO20 6DBSO20 6DDSO20 6DE

Where the postcodes without gigabit lie together

  • 21 postcodes without gigabit, outlined on the map. SO20 8JE, is the one nearest the middle of them.
  • 10 postcodes without gigabit, outlined on the map. SO20 8EZ, is the one nearest the middle of them.

What broadband can you get in SO20?

Ofcom reports on 341 of the 346 postcodes in SO20. At 108 of them every home and business can get gigabit broadband, and at 19 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit108 of 341
Postcodes where every home can get superfast252 of 341
Postcodes where some cannot get decent broadband19 of 341

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom Connected Nations, Connected Nations, Spring 2026, data for January 2026.

Is SO20 at risk of flooding?

47 of the 346 postcodes in SO20 have a home or business in an area at risk of flooding from rivers or the sea, the Environment Agency says. At those, it puts 288 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 47 of 346 postcodes High: 187Medium: 101Low: 134

High: 3.3% or more a year (1 in 30). Medium: 1% to 3.3% a year. Low: 0.1% to 1% a year. Very low: under 0.1% a year (1 in 1,000). Each band is the chance of flooding in any one year.

Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.

Source: Environment Agency flood risk, published 6 July 2026.

What do homes sell for in SO20?

Homes in SO20 sold for a typical £585,000 in the 12 months to September 2026, across 61 sales, HM Land Registry's figures show. The 12 months before gave £580,000 from 121 sales: not a change larger than chance would explain, given which homes happened to sell.

£585,000 typical price, the 12 months to September 2026
£580,000 12 months to September 2025
  • Detached £737,500 32 sales
  • Semi-detached £375,000 13 sales
  • Terraced £447,500 12 sales
  • Flat or maisonette 4 sales, too few to price

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

Source: HM Land Registry Price Paid Data, files dated 28 October 2026.

Postcodes in SO20

Pick a sector, then a postcode. A sector is the district plus the next digit.

SO20 6198 postcodesSO20 8148 postcodes
UK postcode format explained

Places in SO20

Towns and villages with postcodes in SO20, and how many each has here.

Winchester postcodes,3

Who covers SO20

How many of the district's postcodes in use fall under each council, constituency and police force area.

Councils

What council am I in?

Constituencies

  • Romsey and Southampton North342
  • Winchester4

Police force areas

  • Hampshire346

Next to SO20

SO19 postcode district SO21 postcode district All SO districts Winchester postcodes

"Next to" is by number: the districts before and after SO20 in the SO area.

Check a postcode

Where the facts on this page come from

Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.

Licence: Open Government Licence v3.0.

Something wrong on this page? Report an error and we will check it against the source. All our sources