AL5 1 postcode sector in the AL5 district

AL5 1 is a sector of the AL5 district: every postcode that starts AL5 1. It has 192 postcodes in use, 4 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 AL5 1 sector, by gigabit broadband

Map of every postcode in the AL5 1 sector, by gigabit broadband Of the 192 postcodes in the AL5 1 sector that ONS places, 13 have no home or business that can get gigabit, 13 have some that can, 164 can all get it and 2 have no Ofcom figure. One group of postcodes without gigabit is outlined: 6 postcodes without gigabit. 2 postcodes lie beyond the edge and are listed under the map. Places named: Harpenden South, Harpenden West. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A1081 AL5 1GD: no Ofcom figureAL5 1AJ: gigabit for allAL5 1AQ: gigabit for allAL5 1AS: gigabit for allAL5 1AX: gigabit for allAL5 1AY: gigabit for allAL5 1BA: gigabit for allAL5 1BB: gigabit for allAL5 1BD: gigabit for allAL5 1BE: gigabit for allAL5 1BG: gigabit for allAL5 1BH: gigabit for allAL5 1BN: gigabit for allAL5 1BP: gigabit for allAL5 1BQ: gigabit for allAL5 1BS: gigabit for allAL5 1BW: gigabit for allAL5 1DB: gigabit for allAL5 1DD: gigabit for allAL5 1DE: gigabit for allAL5 1DG: gigabit for allAL5 1DH: gigabit for allAL5 1DJ: gigabit for allAL5 1DL: gigabit for allAL5 1DN: gigabit for allAL5 1DP: gigabit for allAL5 1DR: gigabit for allAL5 1DT: gigabit for allAL5 1DW: gigabit for allAL5 1DY: gigabit for allAL5 1DZ: gigabit for allAL5 1EA: gigabit for allAL5 1EB: gigabit for allAL5 1EF: gigabit for allAL5 1EG: gigabit for allAL5 1EJ: gigabit for allAL5 1EL: gigabit for allAL5 1EN: gigabit for allAL5 1EP: gigabit for allAL5 1EQ: gigabit for allAL5 1ER: gigabit for allAL5 1ES: gigabit for allAL5 1ET: gigabit for allAL5 1EU: gigabit for allAL5 1EW: gigabit for allAL5 1EX: gigabit for allAL5 1EY: gigabit for allAL5 1EZ: gigabit for allAL5 1FA: gigabit for allAL5 1FB: gigabit for allAL5 1HA: gigabit for allAL5 1HB: gigabit for allAL5 1HD: gigabit for allAL5 1HE: gigabit for allAL5 1HF: gigabit for allAL5 1HG: gigabit for allAL5 1HH: gigabit for allAL5 1HJ: gigabit for allAL5 1HL: gigabit for allAL5 1HN: gigabit for allAL5 1HQ: gigabit for allAL5 1JA: gigabit for allAL5 1JB: gigabit for allAL5 1JD: gigabit for allAL5 1JE: gigabit for allAL5 1JF: gigabit for allAL5 1JG: gigabit for allAL5 1JH: gigabit for allAL5 1JJ: gigabit for allAL5 1JL: gigabit for allAL5 1JN: gigabit for allAL5 1JP: gigabit for allAL5 1JQ: gigabit for allAL5 1JR: gigabit for allAL5 1JS: gigabit for allAL5 1JU: gigabit for allAL5 1JW: gigabit for allAL5 1JX: gigabit for allAL5 1JY: gigabit for allAL5 1LG: gigabit for allAL5 1LJ: gigabit for allAL5 1LL: gigabit for allAL5 1LN: gigabit for allAL5 1LP: gigabit for allAL5 1LQ: gigabit for allAL5 1LR: gigabit for allAL5 1LS: gigabit for allAL5 1LT: gigabit for allAL5 1LU: gigabit for allAL5 1LW: gigabit for allAL5 1LX: gigabit for allAL5 1LZ: gigabit for allAL5 1NA: gigabit for allAL5 1ND: gigabit for allAL5 1NE: gigabit for allAL5 1NF: gigabit for allAL5 1NG: gigabit for allAL5 1NL: gigabit for allAL5 1NQ: gigabit for allAL5 1NY: gigabit for allAL5 1PA: gigabit for allAL5 1PD: gigabit for allAL5 1PF: gigabit for allAL5 1PG: gigabit for allAL5 1PQ: gigabit for allAL5 1PR: gigabit for allAL5 1PS: gigabit for allAL5 1PU: gigabit for allAL5 1PW: gigabit for allAL5 1PX: gigabit for allAL5 1PY: gigabit for allAL5 1QA: gigabit for allAL5 1QB: gigabit for allAL5 1QD: gigabit for allAL5 1QE: gigabit for allAL5 1QF: gigabit for allAL5 1QG: gigabit for allAL5 1QH: gigabit for allAL5 1QJ: gigabit for allAL5 1QN: gigabit for allAL5 1QP: gigabit for allAL5 1QQ: gigabit for allAL5 1QU: gigabit for allAL5 1QW: gigabit for allAL5 1QX: gigabit for allAL5 1RB: gigabit for allAL5 1RD: gigabit for allAL5 1RE: gigabit for allAL5 1RF: gigabit for allAL5 1RG: gigabit for allAL5 1RH: gigabit for allAL5 1RJ: gigabit for allAL5 1RL: gigabit for allAL5 1RN: gigabit for allAL5 1RP: gigabit for allAL5 1RQ: gigabit for allAL5 1RR: gigabit for allAL5 1RS: gigabit for allAL5 1RT: gigabit for allAL5 1RU: gigabit for allAL5 1RW: gigabit for allAL5 1RZ: gigabit for allAL5 1SD: gigabit for allAL5 1SE: gigabit for allAL5 1SF: gigabit for allAL5 1SG: gigabit for allAL5 1SH: gigabit for allAL5 1SJ: gigabit for allAL5 1SL: gigabit for allAL5 1SN: gigabit for allAL5 1SP: gigabit for allAL5 1SQ: gigabit for allAL5 1SR: gigabit for allAL5 1SS: gigabit for allAL5 1ST: gigabit for allAL5 1SU: gigabit for allAL5 1SW: gigabit for allAL5 1SX: gigabit for allAL5 1SY: gigabit for allAL5 1SZ: gigabit for allAL5 1TA: gigabit for allAL5 1TB: gigabit for allAL5 1TD: gigabit for allAL5 1TH: gigabit for allAL5 1AA: some gigabitAL5 1AB: some gigabitAL5 1AF: some gigabitAL5 1AU: some gigabitAL5 1BJ: some gigabitAL5 1BY: some gigabitAL5 1DF: some gigabitAL5 1DQ: some gigabitAL5 1LH: some gigabitAL5 1NB: some gigabitAL5 1QR: some gigabitAL5 1QY: some gigabitAL5 1TE: some gigabitAL5 1AD: no gigabitAL5 1AG: no gigabitAL5 1AL: no gigabitAL5 1AP: no gigabitAL5 1AW: no gigabitAL5 1BL: no gigabitAL5 1BT: no gigabitAL5 1BU: no gigabitAL5 1BX: no gigabitAL5 1BZ: no gigabitAL5 1DA: no gigabitAL5 1QL: no gigabit Harpenden SouthHarpenden West 6 postcodes without gigabit, outlined: this goes to AL5 1BT, the one nearest the middle of them6 postcodes without gigabit Map of every postcode in the AL5 1 sector, by gigabit broadband Of the 192 postcodes in the AL5 1 sector that ONS places, 13 have no home or business that can get gigabit, 13 have some that can, 164 can all get it and 2 have no Ofcom figure. One group of postcodes without gigabit is outlined: 6 postcodes without gigabit. 2 postcodes lie beyond the edge and are listed under the map. Places named: Harpenden South, Harpenden West. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Harpenden SouthHarpenden West
  • No home or business can get gigabit: 13
  • Some can get gigabit: 13
  • Every home and business can get gigabit: 164
  • Ofcom gives no figure: 2
  • Outline: where 5 or more postcodes without gigabit lie together

Of the 192 postcodes in the AL5 1 sector that ONS places, 13 have no home or business that can get gigabit, 13 have some that can, 164 can all get it and 2 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 150 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. Names in italics are council wards: we hold no town or village names here.

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; Ofcom Connected Nations, Connected Nations, Spring 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.

Postcodes without gigabit

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

2 further out, not drawn

These postcodes lie well apart from the rest, so the map is drawn without them to show the rest closer; they are in every count.

Where the postcodes without gigabit lie together

What do homes sell for in AL5 1?

Homes in AL5 1 sold for a typical £735,000 in the 12 months to September 2026, across 72 sales, HM Land Registry's figures show. The 12 months before gave £670,000 from 95 sales: not a change larger than chance would explain, given which homes happened to sell.

£735,000 typical price, the 12 months to September 2026
£670,000 12 months to September 2025
  • Detached £915,000 22 sales
  • Semi-detached £777,500 18 sales
  • Terraced £655,000 19 sales
  • Flat or maisonette £265,000 13 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 1. 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 October 2026.

Postcodes in AL5 1

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 1AAAL5 1ABAL5 1ADAL5 1AFAL5 1AGAL5 1AJAL5 1ALAL5 1ANAL5 1APAL5 1AQAL5 1ASAL5 1AUAL5 1AWAL5 1AXAL5 1AYAL5 1BAAL5 1BBAL5 1BDAL5 1BEAL5 1BGAL5 1BHAL5 1BJAL5 1BLAL5 1BNAL5 1BPAL5 1BQAL5 1BSAL5 1BTAL5 1BUAL5 1BWAL5 1BXAL5 1BYAL5 1BZAL5 1DAAL5 1DBAL5 1DDAL5 1DEAL5 1DFAL5 1DGAL5 1DHAL5 1DJAL5 1DLAL5 1DNAL5 1DPAL5 1DQAL5 1DRAL5 1DTAL5 1DWAL5 1DYAL5 1DZAL5 1EAAL5 1EBAL5 1EFAL5 1EGAL5 1EHAL5 1EJAL5 1ELAL5 1ENAL5 1EPAL5 1EQAL5 1ERAL5 1ESAL5 1ETAL5 1EUAL5 1EWAL5 1EXAL5 1EYAL5 1EZAL5 1FAAL5 1FBAL5 1GDAL5 1GZAL5 1HAAL5 1HBAL5 1HDAL5 1HEAL5 1HFAL5 1HGAL5 1HHAL5 1HJAL5 1HLAL5 1HNAL5 1HQAL5 1JAAL5 1JBAL5 1JDAL5 1JEAL5 1JFAL5 1JGAL5 1JHAL5 1JJAL5 1JLAL5 1JNAL5 1JPAL5 1JQAL5 1JRAL5 1JSAL5 1JUAL5 1JWAL5 1JXAL5 1JYAL5 1LGAL5 1LHAL5 1LJAL5 1LLAL5 1LNAL5 1LPAL5 1LQAL5 1LRAL5 1LSAL5 1LTAL5 1LUAL5 1LWAL5 1LXAL5 1LZAL5 1NAAL5 1NBAL5 1NDAL5 1NEAL5 1NFAL5 1NGAL5 1NLAL5 1NQAL5 1NYAL5 1PAAL5 1PDAL5 1PFAL5 1PGAL5 1PQAL5 1PRAL5 1PSAL5 1PUAL5 1PWAL5 1PXAL5 1PYAL5 1QAAL5 1QBAL5 1QDAL5 1QEAL5 1QFAL5 1QGAL5 1QHAL5 1QJAL5 1QLAL5 1QNAL5 1QPAL5 1QQAL5 1QRAL5 1QUAL5 1QWAL5 1QXAL5 1QYAL5 1RBAL5 1RDAL5 1REAL5 1RFAL5 1RGAL5 1RHAL5 1RJAL5 1RLAL5 1RNAL5 1RPAL5 1RQAL5 1RRAL5 1RSAL5 1RTAL5 1RUAL5 1RWAL5 1RZAL5 1SDAL5 1SEAL5 1SFAL5 1SGAL5 1SHAL5 1SJAL5 1SLAL5 1SNAL5 1SPAL5 1SQAL5 1SRAL5 1SSAL5 1STAL5 1SUAL5 1SWAL5 1SXAL5 1SYAL5 1SZAL5 1TAAL5 1TBAL5 1TDAL5 1TEAL5 1TH

Source: ONS Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed.

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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Where the facts on this page come from

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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