IP20 postcode district: Harleston and around

IP20 is a postcode district mostly in Norfolk, with 323 postcodes in use in 2 sectors. It has postcodes in Harleston. It is split between 3 councils: South Norfolk (258 postcodes), Mid Suffolk (45) and East Suffolk (20). 258 are in Norfolk and 65 in Suffolk.

Postcodes in use: 323
Sectors: 2
Councils: 3 councils
Places: Harleston

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in IP20, by gigabit broadband

No home or business can get gigabit: 114
Some can get gigabit: 87
Every home and business can get gigabit: 116
Ofcom gives no figure: 6
Outline: where 5 or more postcodes without gigabit lie together

Of the 323 postcodes in IP20 that ONS places, 114 have no home or business that can get gigabit, 87 have some that can, 116 can all get it and 6 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 230 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 52.4062, longitude 1.3190. Open this area on OpenStreetMap

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; gigabit: Ofcom, Connected Nations, Spring 2026; roads, rivers and built-up areas: 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. How we use them

Postcodes without gigabit

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

IP20 0AF IP20 0AG IP20 0AP IP20 0AQ IP20 0AR IP20 0AS IP20 0AT IP20 0AU IP20 0AX IP20 0AY IP20 0AZ IP20 0BA

Where the postcodes without gigabit lie together

9 postcodes without gigabit, outlined on the map. IP20 0LA, is the one nearest the middle of them.
8 postcodes without gigabit, outlined on the map. IP20 9QG, is the one nearest the middle of them.
7 postcodes without gigabit, outlined on the map. IP20 0DF, is the one nearest the middle of them.
6 postcodes without gigabit, outlined on the map. IP20 0NL, is the one nearest the middle of them.
5 postcodes without gigabit, outlined on the map. IP20 9BS, is the one nearest the middle of them.

What broadband can you get in IP20?

Ofcom reports on 317 of the 323 postcodes in IP20. At 116 of them every home and business can get gigabit broadband, and at 14 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit116 of 317

Postcodes where every home can get superfast247 of 317

Postcodes where some cannot get decent broadband14 of 317

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, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

Is IP20 at risk of flooding?

36 of the 323 postcodes in IP20 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 69 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 36 of 323 postcodes High: 56Medium: 13Low: 90

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, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0. How we use it

What do homes sell for in IP20?

Homes in IP20 sold for a typical £275,000 in the 12 months to August 2026, across 114 sales, up 1.9% on the 12 months before, HM Land Registry's figures show.

£275,000 typical price, the 12 months to August 2026

£270,000 12 months to August 2025

▲ up 1.9% on the 12 months before

Detached £342,500 50 sales
Semi-detached £252,500 36 sales
Terraced £190,000 19 sales
Flat or maisonette £135,000 9 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. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it