AL3 5 postcode sector in the AL3 district

AL3 5 is a sector of the AL3 district: every postcode that starts AL3 5. It has 232 postcodes in use, 7 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 AL3 5 sector, and which are new since 2020

Map of every postcode in the AL3 5 sector, by new since 2020 Of the 232 postcodes in the AL3 5 sector that ONS places, 3 are new since 2020 and 229 were in use before 2020. 2 postcodes lie beyond the edge and are listed under the map. Places named: St Albans. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A1081 AL3 5AB: before 2020AL3 5AD: before 2020AL3 5AE: before 2020AL3 5AH: before 2020AL3 5AJ: before 2020AL3 5AL: before 2020AL3 5AN: before 2020AL3 5AP: before 2020AL3 5AS: before 2020AL3 5AT: before 2020AL3 5AU: before 2020AL3 5AW: before 2020AL3 5AX: before 2020AL3 5AY: before 2020AL3 5AZ: before 2020AL3 5BA: before 2020AL3 5BE: before 2020AL3 5BG: before 2020AL3 5BH: before 2020AL3 5BJ: before 2020AL3 5BN: before 2020AL3 5BP: before 2020AL3 5BT: before 2020AL3 5BU: before 2020AL3 5BX: before 2020AL3 5BY: before 2020AL3 5BZ: before 2020AL3 5DD: before 2020AL3 5DG: before 2020AL3 5DL: before 2020AL3 5DP: before 2020AL3 5DQ: before 2020AL3 5DR: before 2020AL3 5DU: before 2020AL3 5DW: before 2020AL3 5EA: before 2020AL3 5EB: before 2020AL3 5ED: before 2020AL3 5EE: before 2020AL3 5EG: before 2020AL3 5EH: before 2020AL3 5EJ: before 2020AL3 5EL: before 2020AL3 5EN: before 2020AL3 5EP: before 2020AL3 5ER: before 2020AL3 5ES: before 2020AL3 5EU: before 2020AL3 5EW: before 2020AL3 5EX: before 2020AL3 5FA: before 2020AL3 5FB: before 2020AL3 5FD: before 2020AL3 5FE: before 2020AL3 5HB: before 2020AL3 5HE: before 2020AL3 5HJ: before 2020AL3 5HL: before 2020AL3 5HN: before 2020AL3 5HP: before 2020AL3 5HR: before 2020AL3 5HS: before 2020AL3 5HT: before 2020AL3 5HU: before 2020AL3 5HW: before 2020AL3 5HX: before 2020AL3 5JA: before 2020AL3 5JB: before 2020AL3 5JD: before 2020AL3 5JE: before 2020AL3 5JF: before 2020AL3 5JG: before 2020AL3 5JH: before 2020AL3 5JJ: before 2020AL3 5JL: before 2020AL3 5JN: before 2020AL3 5JP: before 2020AL3 5JQ: before 2020AL3 5JR: before 2020AL3 5JS: before 2020AL3 5JT: before 2020AL3 5JU: before 2020AL3 5JW: before 2020AL3 5JX: before 2020AL3 5JY: before 2020AL3 5JZ: before 2020AL3 5LA: before 2020AL3 5LB: before 2020AL3 5LD: before 2020AL3 5LE: before 2020AL3 5LF: before 2020AL3 5LG: before 2020AL3 5LH: before 2020AL3 5LJ: before 2020AL3 5LL: before 2020AL3 5LN: before 2020AL3 5LP: before 2020AL3 5LQ: before 2020AL3 5LR: before 2020AL3 5LS: before 2020AL3 5LT: before 2020AL3 5LU: before 2020AL3 5LW: before 2020AL3 5LX: before 2020AL3 5LY: before 2020AL3 5LZ: before 2020AL3 5NA: before 2020AL3 5NB: before 2020AL3 5ND: before 2020AL3 5NE: before 2020AL3 5NF: before 2020AL3 5NG: before 2020AL3 5NH: before 2020AL3 5NJ: before 2020AL3 5NL: before 2020AL3 5NN: before 2020AL3 5NP: before 2020AL3 5NQ: before 2020AL3 5NR: before 2020AL3 5NS: before 2020AL3 5NT: before 2020AL3 5NU: before 2020AL3 5NW: before 2020AL3 5NZ: before 2020AL3 5PA: before 2020AL3 5PB: before 2020AL3 5PD: before 2020AL3 5PE: before 2020AL3 5PH: before 2020AL3 5PJ: before 2020AL3 5PL: before 2020AL3 5PN: before 2020AL3 5PP: before 2020AL3 5PQ: before 2020AL3 5PR: before 2020AL3 5PS: before 2020AL3 5PT: before 2020AL3 5PU: before 2020AL3 5PW: before 2020AL3 5PX: before 2020AL3 5PY: before 2020AL3 5PZ: before 2020AL3 5QA: before 2020AL3 5QB: before 2020AL3 5QD: before 2020AL3 5QE: before 2020AL3 5QF: before 2020AL3 5QG: before 2020AL3 5QH: before 2020AL3 5QJ: before 2020AL3 5QL: before 2020AL3 5QN: before 2020AL3 5QP: before 2020AL3 5QQ: before 2020AL3 5QS: before 2020AL3 5QT: before 2020AL3 5QU: before 2020AL3 5QW: before 2020AL3 5QX: before 2020AL3 5QY: before 2020AL3 5RA: before 2020AL3 5RB: before 2020AL3 5RD: before 2020AL3 5RE: before 2020AL3 5RF: before 2020AL3 5RG: before 2020AL3 5RH: before 2020AL3 5RJ: before 2020AL3 5RL: before 2020AL3 5RN: before 2020AL3 5RP: before 2020AL3 5RQ: before 2020AL3 5RR: before 2020AL3 5RS: before 2020AL3 5RT: before 2020AL3 5RU: before 2020AL3 5RW: before 2020AL3 5RX: before 2020AL3 5RY: before 2020AL3 5RZ: before 2020AL3 5SA: before 2020AL3 5SB: before 2020AL3 5SD: before 2020AL3 5SE: before 2020AL3 5SF: before 2020AL3 5SG: before 2020AL3 5SH: before 2020AL3 5SQ: before 2020AL3 5SS: before 2020AL3 5SU: before 2020AL3 5SW: before 2020AL3 5SX: before 2020AL3 5SY: before 2020AL3 5SZ: before 2020AL3 5TA: before 2020AL3 5TB: before 2020AL3 5TD: before 2020AL3 5TE: before 2020AL3 5TF: before 2020AL3 5TG: before 2020AL3 5TH: before 2020AL3 5TJ: before 2020AL3 5TL: before 2020AL3 5TN: before 2020AL3 5TP: before 2020AL3 5TQ: before 2020AL3 5TR: before 2020AL3 5TS: before 2020AL3 5TT: before 2020AL3 5TU: before 2020AL3 5TW: before 2020AL3 5TX: before 2020AL3 5TY: before 2020AL3 5TZ: before 2020AL3 5UA: before 2020AL3 5UB: before 2020AL3 5UD: before 2020AL3 5UE: before 2020AL3 5UF: before 2020AL3 5UH: before 2020AL3 5UJ: before 2020AL3 5UL: before 2020AL3 5UN: before 2020AL3 5UP: before 2020AL3 5UQ: before 2020AL3 5UW: before 2020AL3 5FF: new since 2020AL3 5FG: new since 2020AL3 5UT: new since 2020 St Albans Map of every postcode in the AL3 5 sector, by new since 2020 Of the 232 postcodes in the AL3 5 sector that ONS places, 3 are new since 2020 and 229 were in use before 2020. 2 postcodes lie beyond the edge and are listed under the map. Places named: St Albans. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. St Albans
  • New since 2020: 3
  • In use before 2020: 229

Of the 232 postcodes in the AL3 5 sector that ONS places, 3 are new since 2020 and 229 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. 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; 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

The 3 newest postcodes

AL3 5UTOctober 2024AL3 5FGSeptember 2024AL3 5FFApril 2020

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.

AL3 5HYAL3 5XA

What do homes sell for in AL3 5?

Homes in AL3 5 sold for a typical £650,000 in the 12 months to August 2026, across 89 sales, down 10.3% on the 12 months before, HM Land Registry's figures show.

£650,000 typical price, the 12 months to August 2026
£725,000 12 months to August 2025
▼ down 10.3% on the 12 months before
  • Detached £995,000 9 sales
  • Semi-detached £697,500 18 sales
  • Terraced £640,000 52 sales
  • Flat or maisonette £343,750 10 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 AL3 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 AL3 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.

AL3 5ABAL3 5ADAL3 5AEAL3 5AHAL3 5AJAL3 5ALAL3 5ANAL3 5APAL3 5ASAL3 5ATAL3 5AUAL3 5AWAL3 5AXAL3 5AYAL3 5AZAL3 5BAAL3 5BEAL3 5BGAL3 5BHAL3 5BJAL3 5BNAL3 5BPAL3 5BTAL3 5BUAL3 5BXAL3 5BYAL3 5BZAL3 5DDAL3 5DGAL3 5DLAL3 5DPAL3 5DQAL3 5DRAL3 5DUAL3 5DWAL3 5EAAL3 5EBAL3 5EDAL3 5EEAL3 5EGAL3 5EHAL3 5EJAL3 5ELAL3 5ENAL3 5EPAL3 5ERAL3 5ESAL3 5EUAL3 5EWAL3 5EXAL3 5FAAL3 5FBAL3 5FDAL3 5FEAL3 5FFAL3 5FGAL3 5HBAL3 5HEAL3 5HJAL3 5HLAL3 5HNAL3 5HPAL3 5HRAL3 5HSAL3 5HTAL3 5HUAL3 5HWAL3 5HXAL3 5HYAL3 5JAAL3 5JBAL3 5JDAL3 5JEAL3 5JFAL3 5JGAL3 5JHAL3 5JJAL3 5JLAL3 5JNAL3 5JPAL3 5JQAL3 5JRAL3 5JSAL3 5JTAL3 5JUAL3 5JWAL3 5JXAL3 5JYAL3 5JZAL3 5LAAL3 5LBAL3 5LDAL3 5LEAL3 5LFAL3 5LGAL3 5LHAL3 5LJAL3 5LLAL3 5LNAL3 5LPAL3 5LQAL3 5LRAL3 5LSAL3 5LTAL3 5LUAL3 5LWAL3 5LXAL3 5LYAL3 5LZAL3 5NAAL3 5NBAL3 5NDAL3 5NEAL3 5NFAL3 5NGAL3 5NHAL3 5NJAL3 5NLAL3 5NNAL3 5NPAL3 5NQAL3 5NRAL3 5NSAL3 5NTAL3 5NUAL3 5NWAL3 5NZAL3 5PAAL3 5PBAL3 5PDAL3 5PEAL3 5PHAL3 5PJAL3 5PLAL3 5PNAL3 5PPAL3 5PQAL3 5PRAL3 5PSAL3 5PTAL3 5PUAL3 5PWAL3 5PXAL3 5PYAL3 5PZAL3 5QAAL3 5QBAL3 5QDAL3 5QEAL3 5QFAL3 5QGAL3 5QHAL3 5QJAL3 5QLAL3 5QNAL3 5QPAL3 5QQAL3 5QSAL3 5QTAL3 5QUAL3 5QWAL3 5QXAL3 5QYAL3 5RAAL3 5RBAL3 5RDAL3 5REAL3 5RFAL3 5RGAL3 5RHAL3 5RJAL3 5RLAL3 5RNAL3 5RPAL3 5RQAL3 5RRAL3 5RSAL3 5RTAL3 5RUAL3 5RWAL3 5RXAL3 5RYAL3 5RZAL3 5SAAL3 5SBAL3 5SDAL3 5SEAL3 5SFAL3 5SGAL3 5SHAL3 5SQAL3 5SSAL3 5SUAL3 5SWAL3 5SXAL3 5SYAL3 5SZAL3 5TAAL3 5TBAL3 5TDAL3 5TEAL3 5TFAL3 5TGAL3 5THAL3 5TJAL3 5TLAL3 5TNAL3 5TPAL3 5TQAL3 5TRAL3 5TSAL3 5TTAL3 5TUAL3 5TWAL3 5TXAL3 5TYAL3 5TZAL3 5UAAL3 5UBAL3 5UDAL3 5UEAL3 5UFAL3 5UHAL3 5UJAL3 5ULAL3 5UNAL3 5UPAL3 5UQAL3 5USAL3 5UTAL3 5UWAL3 5XA

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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