AL3 6 postcode sector in the AL3 district

AL3 6 is a sector of the AL3 district: every postcode that starts AL3 6. It has 162 postcodes in use, 8 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 6 sector, by flood risk

Map of every postcode in the AL3 6 sector, by flood risk Of the 162 postcodes in the AL3 6 sector that ONS places, 1 have a home or business at high risk and 161 are not on the Environment Agency's at-risk list. Places named: St Albans. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A4147A414A5183 AL3 6AA: not on the flood risk listAL3 6AB: not on the flood risk listAL3 6AD: not on the flood risk listAL3 6AE: not on the flood risk listAL3 6AF: not on the flood risk listAL3 6AG: not on the flood risk listAL3 6AH: not on the flood risk listAL3 6AL: not on the flood risk listAL3 6AN: not on the flood risk listAL3 6AP: not on the flood risk listAL3 6AQ: not on the flood risk listAL3 6AR: not on the flood risk listAL3 6AS: not on the flood risk listAL3 6AW: not on the flood risk listAL3 6AX: not on the flood risk listAL3 6AY: not on the flood risk listAL3 6BA: not on the flood risk listAL3 6BB: not on the flood risk listAL3 6BE: not on the flood risk listAL3 6BG: not on the flood risk listAL3 6BJ: not on the flood risk listAL3 6BL: not on the flood risk listAL3 6BN: not on the flood risk listAL3 6BP: not on the flood risk listAL3 6BQ: not on the flood risk listAL3 6BS: not on the flood risk listAL3 6BT: not on the flood risk listAL3 6BU: not on the flood risk listAL3 6BW: not on the flood risk listAL3 6BX: not on the flood risk listAL3 6BY: not on the flood risk listAL3 6BZ: not on the flood risk listAL3 6DA: not on the flood risk listAL3 6DB: not on the flood risk listAL3 6DD: not on the flood risk listAL3 6DE: not on the flood risk listAL3 6DF: not on the flood risk listAL3 6DG: not on the flood risk listAL3 6DJ: not on the flood risk listAL3 6DL: not on the flood risk listAL3 6DN: not on the flood risk listAL3 6DP: not on the flood risk listAL3 6DQ: not on the flood risk listAL3 6DR: not on the flood risk listAL3 6DS: not on the flood risk listAL3 6DU: not on the flood risk listAL3 6DW: not on the flood risk listAL3 6DX: not on the flood risk listAL3 6DY: not on the flood risk listAL3 6DZ: not on the flood risk listAL3 6EA: not on the flood risk listAL3 6EB: not on the flood risk listAL3 6EE: not on the flood risk listAL3 6EF: not on the flood risk listAL3 6EG: not on the flood risk listAL3 6EH: not on the flood risk listAL3 6EJ: not on the flood risk listAL3 6EL: not on the flood risk listAL3 6EN: not on the flood risk listAL3 6EP: not on the flood risk listAL3 6EQ: not on the flood risk listAL3 6ER: not on the flood risk listAL3 6ES: not on the flood risk listAL3 6ET: not on the flood risk listAL3 6EU: not on the flood risk listAL3 6EW: not on the flood risk listAL3 6EX: not on the flood risk listAL3 6EY: not on the flood risk listAL3 6EZ: not on the flood risk listAL3 6GY: not on the flood risk listAL3 6HA: not on the flood risk listAL3 6HB: not on the flood risk listAL3 6HD: not on the flood risk listAL3 6HE: not on the flood risk listAL3 6HH: not on the flood risk listAL3 6HJ: not on the flood risk listAL3 6HL: not on the flood risk listAL3 6HN: not on the flood risk listAL3 6HP: not on the flood risk listAL3 6HQ: not on the flood risk listAL3 6HR: not on the flood risk listAL3 6HS: not on the flood risk listAL3 6HT: not on the flood risk listAL3 6HU: not on the flood risk listAL3 6HW: not on the flood risk listAL3 6HX: not on the flood risk listAL3 6JB: not on the flood risk listAL3 6JE: not on the flood risk listAL3 6JF: not on the flood risk listAL3 6JG: not on the flood risk listAL3 6JH: not on the flood risk listAL3 6JJ: not on the flood risk listAL3 6JL: not on the flood risk listAL3 6JN: not on the flood risk listAL3 6JP: not on the flood risk listAL3 6JQ: not on the flood risk listAL3 6JR: not on the flood risk listAL3 6JS: not on the flood risk listAL3 6JU: not on the flood risk listAL3 6JW: not on the flood risk listAL3 6JX: not on the flood risk listAL3 6JY: not on the flood risk listAL3 6JZ: not on the flood risk listAL3 6LA: not on the flood risk listAL3 6LD: not on the flood risk listAL3 6LE: not on the flood risk listAL3 6LG: not on the flood risk listAL3 6LH: not on the flood risk listAL3 6LJ: not on the flood risk listAL3 6LL: not on the flood risk listAL3 6LN: not on the flood risk listAL3 6LP: not on the flood risk listAL3 6LQ: not on the flood risk listAL3 6LR: not on the flood risk listAL3 6LS: not on the flood risk listAL3 6LT: not on the flood risk listAL3 6LU: not on the flood risk listAL3 6LW: not on the flood risk listAL3 6LZ: not on the flood risk listAL3 6NA: not on the flood risk listAL3 6NB: not on the flood risk listAL3 6NH: not on the flood risk listAL3 6NL: not on the flood risk listAL3 6NP: not on the flood risk listAL3 6NR: not on the flood risk listAL3 6NW: not on the flood risk listAL3 6NX: not on the flood risk listAL3 6NZ: not on the flood risk listAL3 6PA: not on the flood risk listAL3 6PD: not on the flood risk listAL3 6PE: not on the flood risk listAL3 6PF: not on the flood risk listAL3 6PG: not on the flood risk listAL3 6PH: not on the flood risk listAL3 6PY: not on the flood risk listAL3 6RA: not on the flood risk listAL3 6RD: not on the flood risk listAL3 6RE: not on the flood risk listAL3 6RF: not on the flood risk listAL3 6RG: not on the flood risk listAL3 6RH: not on the flood risk listAL3 6RJ: not on the flood risk listAL3 6RL: not on the flood risk listAL3 6RN: not on the flood risk listAL3 6RP: not on the flood risk listAL3 6RQ: not on the flood risk listAL3 6RR: not on the flood risk listAL3 6RS: not on the flood risk listAL3 6RW: not on the flood risk listAL3 6XT: not on the flood risk listAL3 6XZ: not on the flood risk listAL3 6LB: high flood risk St Albans Map of every postcode in the AL3 6 sector, by flood risk Of the 162 postcodes in the AL3 6 sector that ONS places, 1 have a home or business at high risk and 161 are not on the Environment Agency's at-risk list. Places named: St Albans. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. St Albans
  • A home or business at high risk: 1
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 0
  • Not on the at-risk list: 161

Of the 162 postcodes in the AL3 6 sector that ONS places, 1 have a home or business at high risk and 161 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.

AL3 6LB1 at high risk

What do homes sell for in AL3 6?

Homes in AL3 6 sold for a typical £650,000 in the 12 months to August 2026, across 29 sales, up 4.8% on the 12 months before, HM Land Registry's figures show.

£650,000 typical price, the 12 months to August 2026
£620,000 12 months to August 2025
▲ up 4.8% on the 12 months before
  • Detached 4 sales, too few to price
  • Semi-detached £692,500 16 sales
  • Terraced £608,900 6 sales
  • Flat or maisonette 3 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 at the postcodes that start AL3 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 AL3 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.

AL3 6AAAL3 6ABAL3 6ADAL3 6AEAL3 6AFAL3 6AGAL3 6AHAL3 6AJAL3 6ALAL3 6ANAL3 6APAL3 6AQAL3 6ARAL3 6ASAL3 6AWAL3 6AXAL3 6AYAL3 6BAAL3 6BBAL3 6BEAL3 6BGAL3 6BJAL3 6BLAL3 6BNAL3 6BPAL3 6BQAL3 6BSAL3 6BTAL3 6BUAL3 6BWAL3 6BXAL3 6BYAL3 6BZAL3 6DAAL3 6DBAL3 6DDAL3 6DEAL3 6DFAL3 6DGAL3 6DJAL3 6DLAL3 6DNAL3 6DPAL3 6DQAL3 6DRAL3 6DSAL3 6DUAL3 6DWAL3 6DXAL3 6DYAL3 6DZAL3 6EAAL3 6EBAL3 6EDAL3 6EEAL3 6EFAL3 6EGAL3 6EHAL3 6EJAL3 6ELAL3 6ENAL3 6EPAL3 6EQAL3 6ERAL3 6ESAL3 6ETAL3 6EUAL3 6EWAL3 6EXAL3 6EYAL3 6EZAL3 6GYAL3 6HAAL3 6HBAL3 6HDAL3 6HEAL3 6HFAL3 6HGAL3 6HHAL3 6HJAL3 6HLAL3 6HNAL3 6HPAL3 6HQAL3 6HRAL3 6HSAL3 6HTAL3 6HUAL3 6HWAL3 6HXAL3 6JBAL3 6JEAL3 6JFAL3 6JGAL3 6JHAL3 6JJAL3 6JLAL3 6JNAL3 6JPAL3 6JQAL3 6JRAL3 6JSAL3 6JUAL3 6JWAL3 6JXAL3 6JYAL3 6JZAL3 6LAAL3 6LBAL3 6LDAL3 6LEAL3 6LGAL3 6LHAL3 6LJAL3 6LLAL3 6LNAL3 6LPAL3 6LQAL3 6LRAL3 6LSAL3 6LTAL3 6LUAL3 6LWAL3 6LXAL3 6LYAL3 6LZAL3 6NAAL3 6NBAL3 6NHAL3 6NLAL3 6NPAL3 6NQAL3 6NRAL3 6NWAL3 6NXAL3 6NZAL3 6PAAL3 6PDAL3 6PEAL3 6PFAL3 6PGAL3 6PHAL3 6PQAL3 6PYAL3 6PZAL3 6RAAL3 6RDAL3 6REAL3 6RFAL3 6RGAL3 6RHAL3 6RJAL3 6RLAL3 6RNAL3 6RPAL3 6RQAL3 6RRAL3 6RSAL3 6RTAL3 6RWAL3 6XTAL3 6XZ

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.

Check a postcode

Something wrong on this page? Report an error and we will check it against the source.