PO20 postcode district: Selsey and around, West Sussex
PO20 is a postcode district in West Sussex, with 1,277 postcodes in use in 7 sectors. It has postcodes in Selsey, East Wittering, Barnham and 2 more places. It is split between 2 councils: Chichester (1,117 postcodes) and Arun (160).
- Postcodes in use
- 1,277
- Sectors
- 7
- Councils
- 2 councils
- Places
- 5 places
Source: ONS Postcode Directory, August 2026, loaded 20 October 2026.
Every postcode in PO20, and which are new since 2020
- New since 2020: 124
- In use before 2020: 1,153
- Outline: where 5 or more new postcodes since 2020 lie together
Of the 1,277 postcodes in PO20 that ONS places, 124 are new since 2020 and 1,153 were in use before 2020.
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. New since 2020 means it came into use in January 2020 or later. A dashed outline shows where 5 or more lie within 160 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 50.7865, longitude -0.7815. Open this area on OpenStreetMap
Sources: ONS Postcode Directory, August 2026, loaded 20 October 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.
The 5 newest postcodes
Where the new postcodes lie together
- 33 new postcodes since 2020, outlined on the map. PO20 2PA, is the newest of them.
- 17 new postcodes since 2020, outlined on the map. PO20 0GR, is the newest of them.
- 10 new postcodes since 2020, outlined on the map. PO20 2NE, is the newest of them.
- 8 new postcodes since 2020, outlined on the map. PO20 3BL, is the newest of them.
- 7 new postcodes since 2020, outlined on the map. PO20 2GW, is the newest of them.
- 6 new postcodes since 2020, outlined on the map. PO20 3AZ, is the newest of them.
What broadband can you get in PO20?
Ofcom reports on 1,255 of the 1,277 postcodes in PO20. At 747 of them every home and business can get gigabit broadband, and at 4 some cannot get decent broadband (10 Mbit/s).
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 checkerSource: Ofcom Connected Nations, Connected Nations, Spring 2026, data for January 2026.
Is PO20 at risk of flooding?
372 of the 1,277 postcodes in PO20 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 3,095 homes and businesses in an area at high or medium risk.
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 PO20?
Homes in PO20 sold for a typical £385,000 in the 12 months to August 2026, across 495 sales, HM Land Registry's figures show. The 12 months before gave £370,000 from 593 sales: not a change larger than chance would explain, given which homes happened to sell.
- Detached £500,000 239 sales
- Semi-detached £360,000 148 sales
- Terraced £297,500 68 sales
- Flat or maisonette £171,300 40 sales
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 September 2026.
Postcodes in PO20
Pick a sector, then a postcode. A sector is the district plus the next digit.
Places in PO20
Towns and villages with postcodes in PO20, and how many each has here.
Who covers PO20
How many of the district's postcodes in use fall under each council, constituency and police force area.
Councils
- Chichester1,117
- Arun160
Constituencies
- Chichester1,125
- Arundel and South Downs152
Police force areas
- Sussex1,277
Next to PO20
"Next to" is by number: the districts before and after PO20 in the PO area.
Check a postcode
Where the facts on this page come from
- Office for National Statistics: ONS Postcode Directory
- Ofcom Connected Nations
- Environment Agency flood risk
- HM Land Registry Price Paid Data
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.
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