AL5 5 postcode sector in the AL5 district

AL5 5 is a sector of the AL5 district: every postcode that starts AL5 5. It has 223 postcodes in use.

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

Every postcode in the AL5 5 sector, by flood risk

Map of every postcode in the AL5 5 sector, by flood risk Of the 223 postcodes in the AL5 5 sector that ONS places, 2 have a home or business at high risk, 3 are at low risk at worst, 3 are at very low risk only and 215 are not on the Environment Agency's at-risk list. Places named: Harpenden. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A1081 AL5 5AA: not on the flood risk listAL5 5AB: not on the flood risk listAL5 5AD: not on the flood risk listAL5 5AF: not on the flood risk listAL5 5AH: not on the flood risk listAL5 5AJ: not on the flood risk listAL5 5AL: not on the flood risk listAL5 5AN: not on the flood risk listAL5 5AP: not on the flood risk listAL5 5AQ: not on the flood risk listAL5 5AR: not on the flood risk listAL5 5AS: not on the flood risk listAL5 5AT: not on the flood risk listAL5 5AU: not on the flood risk listAL5 5AW: not on the flood risk listAL5 5AX: not on the flood risk listAL5 5AY: not on the flood risk listAL5 5AZ: not on the flood risk listAL5 5BA: not on the flood risk listAL5 5BB: not on the flood risk listAL5 5BD: not on the flood risk listAL5 5BE: not on the flood risk listAL5 5BG: not on the flood risk listAL5 5BH: not on the flood risk listAL5 5BJ: not on the flood risk listAL5 5BL: not on the flood risk listAL5 5BN: not on the flood risk listAL5 5BP: not on the flood risk listAL5 5BQ: not on the flood risk listAL5 5BS: not on the flood risk listAL5 5BT: not on the flood risk listAL5 5BU: not on the flood risk listAL5 5BW: not on the flood risk listAL5 5DN: not on the flood risk listAL5 5DP: not on the flood risk listAL5 5DR: not on the flood risk listAL5 5DS: not on the flood risk listAL5 5DU: not on the flood risk listAL5 5DW: not on the flood risk listAL5 5DX: not on the flood risk listAL5 5DY: not on the flood risk listAL5 5DZ: not on the flood risk listAL5 5EA: not on the flood risk listAL5 5EB: not on the flood risk listAL5 5ED: not on the flood risk listAL5 5EE: not on the flood risk listAL5 5EJ: not on the flood risk listAL5 5EQ: not on the flood risk listAL5 5EW: not on the flood risk listAL5 5EZ: not on the flood risk listAL5 5FA: not on the flood risk listAL5 5FB: not on the flood risk listAL5 5FD: not on the flood risk listAL5 5FF: not on the flood risk listAL5 5FH: not on the flood risk listAL5 5FJ: not on the flood risk listAL5 5HA: not on the flood risk listAL5 5HB: not on the flood risk listAL5 5HD: not on the flood risk listAL5 5HE: not on the flood risk listAL5 5HF: not on the flood risk listAL5 5HH: not on the flood risk listAL5 5HJ: not on the flood risk listAL5 5HL: not on the flood risk listAL5 5HN: not on the flood risk listAL5 5HP: not on the flood risk listAL5 5HQ: not on the flood risk listAL5 5HR: not on the flood risk listAL5 5HS: not on the flood risk listAL5 5HT: not on the flood risk listAL5 5HU: not on the flood risk listAL5 5HW: not on the flood risk listAL5 5HX: not on the flood risk listAL5 5HY: not on the flood risk listAL5 5HZ: not on the flood risk listAL5 5JA: not on the flood risk listAL5 5JB: not on the flood risk listAL5 5JD: not on the flood risk listAL5 5JE: not on the flood risk listAL5 5JF: not on the flood risk listAL5 5JG: not on the flood risk listAL5 5JH: not on the flood risk listAL5 5JJ: not on the flood risk listAL5 5JL: not on the flood risk listAL5 5JP: not on the flood risk listAL5 5JQ: not on the flood risk listAL5 5LA: not on the flood risk listAL5 5LB: not on the flood risk listAL5 5LD: not on the flood risk listAL5 5LE: not on the flood risk listAL5 5LF: not on the flood risk listAL5 5LG: not on the flood risk listAL5 5LH: not on the flood risk listAL5 5LL: not on the flood risk listAL5 5LN: not on the flood risk listAL5 5LP: not on the flood risk listAL5 5LQ: not on the flood risk listAL5 5LR: not on the flood risk listAL5 5LS: not on the flood risk listAL5 5LT: not on the flood risk listAL5 5LU: not on the flood risk listAL5 5LW: not on the flood risk listAL5 5LX: not on the flood risk listAL5 5LY: not on the flood risk listAL5 5LZ: not on the flood risk listAL5 5NA: not on the flood risk listAL5 5NB: not on the flood risk listAL5 5ND: not on the flood risk listAL5 5NF: not on the flood risk listAL5 5NG: not on the flood risk listAL5 5NH: not on the flood risk listAL5 5NJ: not on the flood risk listAL5 5NL: not on the flood risk listAL5 5NN: not on the flood risk listAL5 5NP: not on the flood risk listAL5 5NQ: not on the flood risk listAL5 5NR: not on the flood risk listAL5 5NS: not on the flood risk listAL5 5NT: not on the flood risk listAL5 5NU: not on the flood risk listAL5 5NW: not on the flood risk listAL5 5NX: not on the flood risk listAL5 5NY: not on the flood risk listAL5 5NZ: not on the flood risk listAL5 5PA: not on the flood risk listAL5 5PD: not on the flood risk listAL5 5PE: not on the flood risk listAL5 5PJ: not on the flood risk listAL5 5PL: not on the flood risk listAL5 5PN: not on the flood risk listAL5 5PP: not on the flood risk listAL5 5PR: not on the flood risk listAL5 5PS: not on the flood risk listAL5 5PT: not on the flood risk listAL5 5PU: not on the flood risk listAL5 5PW: not on the flood risk listAL5 5PX: not on the flood risk listAL5 5QH: not on the flood risk listAL5 5QJ: not on the flood risk listAL5 5QL: not on the flood risk listAL5 5QN: not on the flood risk listAL5 5QP: not on the flood risk listAL5 5QR: not on the flood risk listAL5 5QS: not on the flood risk listAL5 5QT: not on the flood risk listAL5 5QU: not on the flood risk listAL5 5QW: not on the flood risk listAL5 5QX: not on the flood risk listAL5 5QY: not on the flood risk listAL5 5QZ: not on the flood risk listAL5 5RA: not on the flood risk listAL5 5RB: not on the flood risk listAL5 5RD: not on the flood risk listAL5 5RE: not on the flood risk listAL5 5RF: not on the flood risk listAL5 5RG: not on the flood risk listAL5 5RH: not on the flood risk listAL5 5RJ: not on the flood risk listAL5 5RL: not on the flood risk listAL5 5RN: not on the flood risk listAL5 5RP: not on the flood risk listAL5 5RQ: not on the flood risk listAL5 5RR: not on the flood risk listAL5 5RS: not on the flood risk listAL5 5RT: not on the flood risk listAL5 5RU: not on the flood risk listAL5 5RW: not on the flood risk listAL5 5RX: not on the flood risk listAL5 5RY: not on the flood risk listAL5 5RZ: not on the flood risk listAL5 5SA: not on the flood risk listAL5 5SD: not on the flood risk listAL5 5SE: not on the flood risk listAL5 5SF: not on the flood risk listAL5 5SG: not on the flood risk listAL5 5SH: not on the flood risk listAL5 5SJ: not on the flood risk listAL5 5SL: not on the flood risk listAL5 5SN: not on the flood risk listAL5 5SQ: not on the flood risk listAL5 5SS: not on the flood risk listAL5 5ST: not on the flood risk listAL5 5SU: not on the flood risk listAL5 5SW: not on the flood risk listAL5 5SX: not on the flood risk listAL5 5SY: not on the flood risk listAL5 5SZ: not on the flood risk listAL5 5TA: not on the flood risk listAL5 5TB: not on the flood risk listAL5 5TE: not on the flood risk listAL5 5TF: not on the flood risk listAL5 5TG: not on the flood risk listAL5 5TH: not on the flood risk listAL5 5TJ: not on the flood risk listAL5 5TL: not on the flood risk listAL5 5TN: not on the flood risk listAL5 5TP: not on the flood risk listAL5 5TQ: not on the flood risk listAL5 5TR: not on the flood risk listAL5 5TS: not on the flood risk listAL5 5TT: not on the flood risk listAL5 5TU: not on the flood risk listAL5 5TW: not on the flood risk listAL5 5TX: not on the flood risk listAL5 5TY: not on the flood risk listAL5 5TZ: not on the flood risk listAL5 5UA: not on the flood risk listAL5 5UB: not on the flood risk listAL5 5UD: not on the flood risk listAL5 5UE: not on the flood risk listAL5 5UG: not on the flood risk listAL5 5UH: not on the flood risk listAL5 5EF: very low flood risk onlyAL5 5EG: very low flood risk onlyAL5 5EP: very low flood risk onlyAL5 5AE: low flood risk at worstAL5 5BX: low flood risk at worstAL5 5BZ: low flood risk at worstAL5 5FE: high flood riskAL5 5UN: high flood risk Harpenden Map of every postcode in the AL5 5 sector, by flood risk Of the 223 postcodes in the AL5 5 sector that ONS places, 2 have a home or business at high risk, 3 are at low risk at worst, 3 are at very low risk only and 215 are not on the Environment Agency's at-risk list. Places named: Harpenden. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Harpenden
  • A home or business at high risk: 2
  • At medium risk at worst: 0
  • At low risk at worst: 3
  • At very low risk only: 3
  • Not on the at-risk list: 215

Of the 223 postcodes in the AL5 5 sector that ONS places, 2 have a home or business at high risk, 3 are at low risk at worst, 3 are at very low risk only and 215 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.

AL5 5FE1 at high riskAL5 5UN1 at high risk

What do homes sell for in AL5 5?

Homes in AL5 5 sold for a typical £645,000 in the 12 months to August 2026, across 94 sales, down 5.1% on the 12 months before, HM Land Registry's figures show.

£645,000 typical price, the 12 months to August 2026
£680,000 12 months to August 2025
▼ down 5.1% on the 12 months before
  • Detached £1,150,000 25 sales
  • Semi-detached £730,000 30 sales
  • Terraced £563,750 18 sales
  • Flat or maisonette £324,000 21 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 AL5 5. 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 AL5 5

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.

AL5 5AAAL5 5ABAL5 5ADAL5 5AEAL5 5AFAL5 5AHAL5 5AJAL5 5ALAL5 5ANAL5 5APAL5 5AQAL5 5ARAL5 5ASAL5 5ATAL5 5AUAL5 5AWAL5 5AXAL5 5AYAL5 5AZAL5 5BAAL5 5BBAL5 5BDAL5 5BEAL5 5BGAL5 5BHAL5 5BJAL5 5BLAL5 5BNAL5 5BPAL5 5BQAL5 5BSAL5 5BTAL5 5BUAL5 5BWAL5 5BXAL5 5BZAL5 5DNAL5 5DPAL5 5DRAL5 5DSAL5 5DUAL5 5DWAL5 5DXAL5 5DYAL5 5DZAL5 5EAAL5 5EBAL5 5EDAL5 5EEAL5 5EFAL5 5EGAL5 5EJAL5 5EPAL5 5EQAL5 5EWAL5 5EZAL5 5FAAL5 5FBAL5 5FDAL5 5FEAL5 5FFAL5 5FGAL5 5FHAL5 5FJAL5 5HAAL5 5HBAL5 5HDAL5 5HEAL5 5HFAL5 5HHAL5 5HJAL5 5HLAL5 5HNAL5 5HPAL5 5HQAL5 5HRAL5 5HSAL5 5HTAL5 5HUAL5 5HWAL5 5HXAL5 5HYAL5 5HZAL5 5JAAL5 5JBAL5 5JDAL5 5JEAL5 5JFAL5 5JGAL5 5JHAL5 5JJAL5 5JLAL5 5JPAL5 5JQAL5 5LAAL5 5LBAL5 5LDAL5 5LEAL5 5LFAL5 5LGAL5 5LHAL5 5LLAL5 5LNAL5 5LPAL5 5LQAL5 5LRAL5 5LSAL5 5LTAL5 5LUAL5 5LWAL5 5LXAL5 5LYAL5 5LZAL5 5NAAL5 5NBAL5 5NDAL5 5NEAL5 5NFAL5 5NGAL5 5NHAL5 5NJAL5 5NLAL5 5NNAL5 5NPAL5 5NQAL5 5NRAL5 5NSAL5 5NTAL5 5NUAL5 5NWAL5 5NXAL5 5NYAL5 5NZAL5 5PAAL5 5PDAL5 5PEAL5 5PJAL5 5PLAL5 5PNAL5 5PPAL5 5PRAL5 5PSAL5 5PTAL5 5PUAL5 5PWAL5 5PXAL5 5QHAL5 5QJAL5 5QLAL5 5QNAL5 5QPAL5 5QRAL5 5QSAL5 5QTAL5 5QUAL5 5QWAL5 5QXAL5 5QYAL5 5QZAL5 5RAAL5 5RBAL5 5RDAL5 5REAL5 5RFAL5 5RGAL5 5RHAL5 5RJAL5 5RLAL5 5RNAL5 5RPAL5 5RQAL5 5RRAL5 5RSAL5 5RTAL5 5RUAL5 5RWAL5 5RXAL5 5RYAL5 5RZAL5 5SAAL5 5SDAL5 5SEAL5 5SFAL5 5SGAL5 5SHAL5 5SJAL5 5SLAL5 5SNAL5 5SQAL5 5SRAL5 5SSAL5 5STAL5 5SUAL5 5SWAL5 5SXAL5 5SYAL5 5SZAL5 5TAAL5 5TBAL5 5TEAL5 5TFAL5 5TGAL5 5THAL5 5TJAL5 5TLAL5 5TNAL5 5TPAL5 5TQAL5 5TRAL5 5TSAL5 5TTAL5 5TUAL5 5TWAL5 5TXAL5 5TYAL5 5TZAL5 5UAAL5 5UBAL5 5UDAL5 5UEAL5 5UGAL5 5UHAL5 5UN

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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