TN20 6 postcode sector in the TN20 district

TN20 6 is a sector of the TN20 district: every postcode that starts TN20 6. It has 175 postcodes in use, 3 of them large-user postcodes. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.

Not sure what a sector is? UK postcode format explained.

Every postcode in the TN20 6 sector, by flood risk

Map of every postcode in the TN20 6 sector, by flood risk Of the 175 postcodes in the TN20 6 sector that ONS places, 6 have a home or business at high risk, 1 are at medium risk at worst, 5 are at low risk at worst and 163 are not on the Environment Agency's at-risk list. Places named: Uckfield, Heathfield, Mayfield, Cross in Hand, Buxted. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A26A265 TN20 6AA: not on the flood risk listTN20 6AB: not on the flood risk listTN20 6AP: not on the flood risk listTN20 6AS: not on the flood risk listTN20 6AT: not on the flood risk listTN20 6AU: not on the flood risk listTN20 6BA: not on the flood risk listTN20 6BB: not on the flood risk listTN20 6BD: not on the flood risk listTN20 6BF: not on the flood risk listTN20 6BG: not on the flood risk listTN20 6BW: not on the flood risk listTN20 6BX: not on the flood risk listTN20 6DB: not on the flood risk listTN20 6DG: not on the flood risk listTN20 6DH: not on the flood risk listTN20 6DS: not on the flood risk listTN20 6DX: not on the flood risk listTN20 6DY: not on the flood risk listTN20 6EA: not on the flood risk listTN20 6EE: not on the flood risk listTN20 6EJ: not on the flood risk listTN20 6EL: not on the flood risk listTN20 6ER: not on the flood risk listTN20 6ES: not on the flood risk listTN20 6ET: not on the flood risk listTN20 6EU: not on the flood risk listTN20 6HA: not on the flood risk listTN20 6HH: not on the flood risk listTN20 6HJ: not on the flood risk listTN20 6HN: not on the flood risk listTN20 6HP: not on the flood risk listTN20 6HQ: not on the flood risk listTN20 6HR: not on the flood risk listTN20 6HU: not on the flood risk listTN20 6HX: not on the flood risk listTN20 6HY: not on the flood risk listTN20 6JA: not on the flood risk listTN20 6JB: not on the flood risk listTN20 6JD: not on the flood risk listTN20 6JG: not on the flood risk listTN20 6JH: not on the flood risk listTN20 6JJ: not on the flood risk listTN20 6JL: not on the flood risk listTN20 6JN: not on the flood risk listTN20 6JS: not on the flood risk listTN20 6JT: not on the flood risk listTN20 6JU: not on the flood risk listTN20 6JX: not on the flood risk listTN20 6LA: not on the flood risk listTN20 6LB: not on the flood risk listTN20 6LD: not on the flood risk listTN20 6LE: not on the flood risk listTN20 6LF: not on the flood risk listTN20 6LG: not on the flood risk listTN20 6LJ: not on the flood risk listTN20 6NB: not on the flood risk listTN20 6ND: not on the flood risk listTN20 6NE: not on the flood risk listTN20 6NG: not on the flood risk listTN20 6NH: not on the flood risk listTN20 6NJ: not on the flood risk listTN20 6NL: not on the flood risk listTN20 6NN: not on the flood risk listTN20 6NP: not on the flood risk listTN20 6NQ: not on the flood risk listTN20 6NR: not on the flood risk listTN20 6NS: not on the flood risk listTN20 6NT: not on the flood risk listTN20 6NU: not on the flood risk listTN20 6NX: not on the flood risk listTN20 6PA: not on the flood risk listTN20 6PJ: not on the flood risk listTN20 6PN: not on the flood risk listTN20 6PP: not on the flood risk listTN20 6PR: not on the flood risk listTN20 6PS: not on the flood risk listTN20 6PT: not on the flood risk listTN20 6PU: not on the flood risk listTN20 6PW: not on the flood risk listTN20 6PX: not on the flood risk listTN20 6PY: not on the flood risk listTN20 6QA: not on the flood risk listTN20 6QB: not on the flood risk listTN20 6RA: not on the flood risk listTN20 6RB: not on the flood risk listTN20 6RD: not on the flood risk listTN20 6RG: not on the flood risk listTN20 6RL: not on the flood risk listTN20 6RN: not on the flood risk listTN20 6RS: not on the flood risk listTN20 6TA: not on the flood risk listTN20 6TB: not on the flood risk listTN20 6TD: not on the flood risk listTN20 6TJ: not on the flood risk listTN20 6TS: not on the flood risk listTN20 6TU: not on the flood risk listTN20 6TX: not on the flood risk listTN20 6TY: not on the flood risk listTN20 6TZ: not on the flood risk listTN20 6UB: not on the flood risk listTN20 6UH: not on the flood risk listTN20 6UL: not on the flood risk listTN20 6UN: not on the flood risk listTN20 6UP: not on the flood risk listTN20 6UR: not on the flood risk listTN20 6WX: not on the flood risk listTN20 6EG: low flood risk at worstTN20 6JR: low flood risk at worstTN20 6NF: low flood risk at worstTN20 6RJ: low flood risk at worstTN20 6RQ: low flood risk at worstTN20 6RE: medium flood risk at worstTN20 6EH: high flood riskTN20 6LL: high flood riskTN20 6RF: high flood riskTN20 6RH: high flood riskTN20 6RP: high flood riskTN20 6RR: high flood risk UckfieldHeathfieldMayfieldCross in HandBuxted Map of every postcode in the TN20 6 sector, by flood risk Of the 175 postcodes in the TN20 6 sector that ONS places, 6 have a home or business at high risk, 1 are at medium risk at worst, 5 are at low risk at worst and 163 are not on the Environment Agency's at-risk list. Places named: Uckfield, Heathfield, Mayfield. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 5 km. A26A265 UckfieldHeathfieldMayfield
  • A home or business at high risk: 6
  • At medium risk at worst: 1
  • At low risk at worst: 5
  • At very low risk only: 0
  • Not on the at-risk list: 163

Of the 175 postcodes in the TN20 6 sector that ONS places, 6 have a home or business at high risk, 1 are at medium risk at worst, 5 are at low risk at worst and 163 are not on the Environment Agency's at-risk list.

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. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; flood risk: Environment Agency, published 6 July 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

The postcodes at high risk

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

TN20 6LL6 at high riskTN20 6EH2 at high riskTN20 6RH1 at high riskTN20 6RF1 at high riskTN20 6RP1 at high riskTN20 6RR1 at high risk

What do homes sell for in TN20 6?

Homes in TN20 6 sold for a typical £525,000 in the 12 months to August 2026, across 43 sales, down 0.9% on the 12 months before, HM Land Registry's figures show.

£525,000 typical price, the 12 months to August 2026
£530,000 12 months to August 2025
▼ down 0.9% on the 12 months before
  • Detached £685,000 19 sales
  • Semi-detached £440,000 12 sales
  • Terraced £265,000 5 sales
  • Flat or maisonette £265,000 7 sales

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

Standard sales of homes at market value at the postcodes that start TN20 6. A typical price is the median, the middle sale, given from 5 sales or more.

How we work this out: house prices by postcode

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 TN20 6

Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.

TN20 6AATN20 6ABTN20 6AGTN20 6AJTN20 6ALTN20 6ANTN20 6APTN20 6AQTN20 6ARTN20 6ASTN20 6ATTN20 6AUTN20 6AWTN20 6AXTN20 6AYTN20 6BATN20 6BBTN20 6BDTN20 6BETN20 6BFTN20 6BGTN20 6BHTN20 6BLTN20 6BNTN20 6BQTN20 6BSTN20 6BTTN20 6BUTN20 6BWTN20 6BXTN20 6BYTN20 6BZTN20 6DATN20 6DBTN20 6DDTN20 6DETN20 6DFTN20 6DGTN20 6DHTN20 6DRTN20 6DSTN20 6DTTN20 6DUTN20 6DXTN20 6DYTN20 6EATN20 6EBTN20 6EDTN20 6EETN20 6EGTN20 6EHTN20 6EJTN20 6ELTN20 6ENTN20 6ERTN20 6ESTN20 6ETTN20 6EUTN20 6EWTN20 6HATN20 6HHTN20 6HJTN20 6HLTN20 6HNTN20 6HPTN20 6HQTN20 6HRTN20 6HSTN20 6HTTN20 6HUTN20 6HXTN20 6HYTN20 6JATN20 6JBTN20 6JDTN20 6JETN20 6JGTN20 6JHTN20 6JJTN20 6JLTN20 6JNTN20 6JRTN20 6JSTN20 6JTTN20 6JUTN20 6JXTN20 6JYTN20 6LATN20 6LBTN20 6LDTN20 6LETN20 6LFTN20 6LGTN20 6LHTN20 6LJTN20 6LLTN20 6LNTN20 6NATN20 6NBTN20 6NDTN20 6NETN20 6NFTN20 6NGTN20 6NHTN20 6NJTN20 6NLTN20 6NNTN20 6NPTN20 6NQTN20 6NRTN20 6NSTN20 6NTTN20 6NUTN20 6NXTN20 6NYTN20 6PATN20 6PHTN20 6PJTN20 6PNTN20 6PPTN20 6PRTN20 6PSTN20 6PTTN20 6PUTN20 6PWTN20 6PXTN20 6PYTN20 6QATN20 6QBTN20 6RATN20 6RBTN20 6RDTN20 6RETN20 6RFTN20 6RGTN20 6RHTN20 6RJTN20 6RLTN20 6RNTN20 6RPTN20 6RQTN20 6RRTN20 6RSTN20 6TATN20 6TBTN20 6TDTN20 6TETN20 6THTN20 6TJTN20 6TLTN20 6TNTN20 6TPTN20 6TRTN20 6TSTN20 6TTTN20 6TUTN20 6TWTN20 6TXTN20 6TYTN20 6TZTN20 6UATN20 6UBTN20 6UDTN20 6UETN20 6UFTN20 6UGTN20 6UHTN20 6UJTN20 6ULTN20 6UNTN20 6UPTN20 6URTN20 6UTTN20 6WXTN20 6ZE

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed. See all our data sources

What council am I in? The council, borough or local authority for a postcode, and the county council where there is one. What ward am I in? The ward for a postcode, with its council, constituency and parish.

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