NR20 postcode district: Dereham and around, Norfolk

NR20 is a postcode district in Norfolk, with 868 postcodes in use in 3 sectors. It has postcodes in Dereham, Mattishall and Swanton Morley. It is split between 4 councils: Breckland (747 postcodes), Broadland (62), North Norfolk (48) and 1 other.

Postcodes in use
868
Sectors
3
Councils
4 councils
Places
3 places

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

Every postcode in NR20, and which are new since 2020

Map of every postcode in NR20, by new since 2020 Of the 868 postcodes in NR20 that ONS places, 53 are new since 2020 and 815 were in use before 2020. 2 groups of new postcodes are outlined: 12 new postcodes since 2020; 5 new postcodes since 2020. Places named: Dereham, Mattishall, Reepham, Swanton Morley. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A47A1075A1065 NR20 3AA: before 2020NR20 3AB: before 2020NR20 3AD: before 2020NR20 3AE: before 2020NR20 3AF: before 2020NR20 3AH: before 2020NR20 3AL: before 2020NR20 3AP: before 2020NR20 3AR: before 2020NR20 3AT: before 2020NR20 3AU: before 2020NR20 3AX: before 2020NR20 3AY: before 2020NR20 3AZ: before 2020NR20 3BB: before 2020NR20 3BD: before 2020NR20 3BE: before 2020NR20 3BF: before 2020NR20 3BJ: before 2020NR20 3BP: before 2020NR20 3BS: before 2020NR20 3BT: before 2020NR20 3BU: before 2020NR20 3BW: before 2020NR20 3BX: before 2020NR20 3BY: before 2020NR20 3BZ: before 2020NR20 3DA: before 2020NR20 3DB: before 2020NR20 3DD: before 2020NR20 3DF: before 2020NR20 3DG: before 2020NR20 3DH: before 2020NR20 3DJ: before 2020NR20 3DL: before 2020NR20 3DN: before 2020NR20 3DP: before 2020NR20 3DQ: before 2020NR20 3DR: before 2020NR20 3DS: before 2020NR20 3DT: before 2020NR20 3DU: before 2020NR20 3DW: before 2020NR20 3DX: before 2020NR20 3DY: before 2020NR20 3DZ: before 2020NR20 3EA: before 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2020NR20 5PP: before 2020NR20 5PQ: before 2020NR20 5PR: before 2020NR20 5PS: before 2020NR20 5PT: before 2020NR20 5PU: before 2020NR20 5PW: before 2020NR20 5PX: before 2020NR20 5PY: before 2020NR20 5QA: before 2020NR20 5QB: before 2020NR20 5QD: before 2020NR20 5QE: before 2020NR20 5QF: before 2020NR20 5QG: before 2020NR20 5QH: before 2020NR20 5QJ: before 2020NR20 5QL: before 2020NR20 5QP: before 2020NR20 5QQ: before 2020NR20 5QR: before 2020NR20 5QS: before 2020NR20 5QT: before 2020NR20 5QU: before 2020NR20 5QW: before 2020NR20 5QX: before 2020NR20 5QY: before 2020NR20 5RD: before 2020NR20 5RG: before 2020NR20 5RH: before 2020NR20 5RJ: before 2020NR20 5RL: before 2020NR20 5RN: before 2020NR20 5RP: before 2020NR20 5RQ: before 2020NR20 5RR: before 2020NR20 5RS: before 2020NR20 5RT: before 2020NR20 5RW: before 2020NR20 5RX: before 2020NR20 5RZ: before 2020NR20 5SA: before 2020NR20 5SB: before 2020NR20 5SD: before 2020NR20 5SE: before 2020NR20 5SG: before 2020NR20 5SH: before 2020NR20 5SJ: before 2020NR20 5SL: before 2020NR20 5SP: before 2020NR20 5SQ: before 2020NR20 5SR: before 2020NR20 5SS: before 2020NR20 5ST: before 2020NR20 5SX: before 2020NR20 5SY: before 2020NR20 5SZ: before 2020NR20 5TE: before 2020NR20 5TF: before 2020NR20 5TP: before 2020NR20 5TQ: before 2020NR20 5TT: before 2020NR20 5TU: before 2020NR20 5TW: before 2020NR20 5TX: before 2020NR20 5UA: before 2020NR20 3AJ: before 2020NR20 4FB: before 2020NR20 5HA: before 2020NR20 5RA: before 2020NR20 3GU: new since 2020NR20 3GW: new since 2020NR20 3GX: new since 2020NR20 3TA: new since 2020NR20 3UF: new since 2020NR20 3UH: new since 2020NR20 3UN: new since 2020NR20 3US: new since 2020NR20 3UU: new since 2020NR20 3UW: new since 2020NR20 3UZ: new since 2020NR20 3WA: new since 2020NR20 3WD: new since 2020NR20 4FX: new since 2020NR20 4FY: new since 2020NR20 4FZ: new since 2020NR20 4GG: new since 2020NR20 4GH: new since 2020NR20 4GR: new since 2020NR20 4TX: new since 2020NR20 4WF: new since 2020NR20 5AT: new since 2020NR20 5FB: new since 2020NR20 5FD: new since 2020NR20 5FE: new since 2020NR20 5FF: new since 2020NR20 5FH: new since 2020NR20 5FJ: new since 2020NR20 5GA: new since 2020NR20 3UT: new since 2020NR20 3SN: new since 2020NR20 3TN: new since 2020NR20 3UR: new since 2020NR20 3UQ: new since 2020NR20 3UX: new since 2020NR20 3UJ: new since 2020NR20 4QH: new since 2020NR20 4TS: new since 2020NR20 4TT: new since 2020NR20 4WG: new since 2020NR20 5LG: new since 2020 DerehamMattishallReephamSwanton Morley 12 new postcodes since 2020, outlined: this goes to NR20 3UN, the newest of them12 new postcodes since 20205 new postcodes since 2020, outlined: this goes to NR20 3UZ, the newest of them5 new postcodes since 2020 Map of every postcode in NR20, by new since 2020 Of the 868 postcodes in NR20 that ONS places, 53 are new since 2020 and 815 were in use before 2020. 2 groups of new postcodes are outlined: 12 new postcodes since 2020; 5 new postcodes since 2020. Places named: Dereham, Mattishall, Swanton Morley. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 5 km. A1075 DerehamMattishallSwanton Morley 12 new postcodes since 2020, outlined: this goes to NR20 3UN, the newest of them12 new postcodes since 2020
  • New since 2020: 53
  • In use before 2020: 815
  • Outline: where 5 or more new postcodes since 2020 lie together

Of the 868 postcodes in NR20 that ONS places, 53 are new since 2020 and 815 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 240 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 52.7219, longitude 0.9811. 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; when each came into use: the same directory; 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

Where the new postcodes lie together

What broadband can you get in NR20?

Ofcom reports on 853 of the 868 postcodes in NR20. At 299 of them every home and business can get gigabit broadband, and at 48 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit299 of 853
Postcodes where every home can get superfast668 of 853
Postcodes where some cannot get decent broadband48 of 853

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 NR20 at risk of flooding?

51 of the 868 postcodes in NR20 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 64 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 51 of 868 postcodes High: 41Medium: 23Low: 102

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 NR20?

Homes in NR20 sold for a typical £310,000 in the 12 months to August 2026, across 227 sales, down 6.6% on the 12 months before, HM Land Registry's figures show.

£310,000 typical price, the 12 months to August 2026
£332,000 12 months to August 2025
▼ down 6.6% on the 12 months before
  • Detached £387,500 133 sales
  • Semi-detached £250,000 61 sales
  • Terraced £205,000 31 sales
  • Flat or maisonette 2 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 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

Postcodes in NR20

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

UK postcode format explained

Places in NR20

Towns and villages with postcodes in NR20, and how many each has here.

Who covers NR20

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

  • Mid Norfolk758
  • Broadland and Fakenham110

Police force areas

  • Norfolk868

Next to NR20

"Next to" is by number: the districts before and after NR20 in the NR area.

Check a postcode

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