AL6 9 postcode sector in the AL6 district

AL6 9 is a sector of the AL6 district: every postcode that starts AL6 9. It has 241 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 AL6 9 sector, by flood risk

Map of every postcode in the AL6 9 sector, by flood risk Of the 241 postcodes in the AL6 9 sector that ONS places, 1 have a home or business at high risk, 2 are at medium risk at worst, 9 are at low risk at worst and 229 are not on the Environment Agency's at-risk list. Places named: Woolmer Green, Welwyn, Codicote. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. AL6 9AA: not on the flood risk listAL6 9AB: not on the flood risk listAL6 9AD: not on the flood risk listAL6 9AE: not on the flood risk listAL6 9AF: not on the flood risk listAL6 9AH: not on the flood risk listAL6 9AJ: not on the flood risk listAL6 9AL: not on the flood risk listAL6 9AS: not on the flood risk listAL6 9AT: not on the flood risk listAL6 9AU: not on the flood risk listAL6 9BA: not on the flood risk listAL6 9BB: not on the flood risk listAL6 9BD: not on the flood risk listAL6 9BE: not on the flood risk listAL6 9BG: not on the flood risk listAL6 9BH: not on the flood risk listAL6 9BJ: not on the flood risk listAL6 9BL: not on the flood risk listAL6 9BN: not on the flood risk listAL6 9BP: not on the flood risk listAL6 9BQ: not on the flood risk listAL6 9BS: not on the flood risk listAL6 9BT: not on the flood risk listAL6 9BU: not on the flood risk listAL6 9BW: not on the flood risk listAL6 9BX: not on the flood risk listAL6 9BY: not on the flood risk listAL6 9BZ: not on the flood risk listAL6 9DA: not on the flood risk listAL6 9DB: not on the flood risk listAL6 9DF: not on the flood risk listAL6 9DJ: not on the flood risk listAL6 9DL: not on the flood risk listAL6 9DN: not on the flood risk listAL6 9DP: not on the flood risk listAL6 9DQ: not on the flood risk listAL6 9DS: not on the flood risk listAL6 9DW: not on the flood risk listAL6 9DY: not on the flood risk listAL6 9EG: not on the flood risk listAL6 9EH: not on the flood risk listAL6 9EL: not on the flood risk listAL6 9EN: not on the flood risk listAL6 9EP: not on the flood risk listAL6 9ER: not on the flood risk listAL6 9ES: not on the flood risk listAL6 9EY: not on the flood risk listAL6 9EZ: not on the flood risk listAL6 9FB: not on the flood risk listAL6 9FD: not on the flood risk listAL6 9FE: not on the flood risk listAL6 9FF: not on the flood risk listAL6 9FG: not on the flood risk listAL6 9FH: not on the flood risk listAL6 9FL: not on the flood risk listAL6 9FN: not on the flood risk listAL6 9FP: not on the flood risk listAL6 9FQ: not on the flood risk listAL6 9FR: not on the flood risk listAL6 9FS: not on the flood risk listAL6 9FT: not on the flood risk listAL6 9FU: not on the flood risk listAL6 9FW: not on the flood risk listAL6 9FX: not on the flood risk listAL6 9FY: not on the flood risk listAL6 9FZ: not on the flood risk listAL6 9GA: not on the flood risk listAL6 9GB: not on the flood risk listAL6 9GD: not on the flood risk listAL6 9GF: not on the flood risk listAL6 9GG: not on the flood risk listAL6 9GJ: not on the flood risk listAL6 9GL: not on the flood risk listAL6 9GN: not on the flood risk listAL6 9GP: not on the flood risk listAL6 9GQ: not on the flood risk listAL6 9GR: not on the flood risk listAL6 9HB: not on the flood risk listAL6 9HH: not on the flood risk listAL6 9HN: not on the flood risk listAL6 9HR: not on the flood risk listAL6 9HS: not on the flood risk listAL6 9HT: not on the flood risk listAL6 9HU: not on the flood risk listAL6 9HX: not on the flood risk listAL6 9HY: not on the flood risk listAL6 9HZ: not on the flood risk listAL6 9JA: not on the flood risk listAL6 9JB: not on the flood risk listAL6 9JD: not on the flood risk listAL6 9JE: not on the flood risk listAL6 9JF: not on the flood risk listAL6 9JG: not on the flood risk listAL6 9JH: not on the flood risk listAL6 9JJ: not on the flood risk listAL6 9JL: not on the flood risk listAL6 9JN: not on the flood risk listAL6 9JP: not on the flood risk listAL6 9JQ: not on the flood risk listAL6 9JR: not on the flood risk listAL6 9JS: not on the flood risk listAL6 9JT: not on the flood risk listAL6 9JU: not on the flood risk listAL6 9JW: not on the flood risk listAL6 9JX: not on the flood risk listAL6 9JY: not on the flood risk listAL6 9JZ: not on the flood risk listAL6 9LA: not on the flood risk listAL6 9LB: not on the flood risk listAL6 9LD: not on the flood risk listAL6 9LE: not on the flood risk listAL6 9LF: not on the flood risk listAL6 9LH: not on the flood risk listAL6 9LP: not on the flood risk listAL6 9LR: not on the flood risk listAL6 9LS: not on the flood risk listAL6 9LT: not on the flood risk listAL6 9LU: not on the flood risk listAL6 9LW: not on the flood risk listAL6 9LX: not on the flood risk listAL6 9LY: not on the flood risk listAL6 9LZ: not on the flood risk listAL6 9NA: not on the flood risk listAL6 9ND: not on the flood risk listAL6 9NE: not on the flood risk listAL6 9NF: not on the flood risk listAL6 9NG: not on the flood risk listAL6 9NJ: not on the flood risk listAL6 9NL: not on the flood risk listAL6 9NN: not on the flood risk listAL6 9NP: not on the flood risk listAL6 9NR: not on the flood risk listAL6 9NS: not on the flood risk listAL6 9NT: not on the flood risk listAL6 9NW: not on the flood risk listAL6 9NX: not on the flood risk listAL6 9PA: not on the flood risk listAL6 9PB: not on the flood risk listAL6 9PD: not on the flood risk listAL6 9PE: not on the flood risk listAL6 9PF: not on the flood risk listAL6 9PG: not on the flood risk listAL6 9PH: not on the flood risk listAL6 9PJ: not on the flood risk listAL6 9PL: not on the flood risk listAL6 9PN: not on the flood risk listAL6 9PP: not on the flood risk listAL6 9PQ: not on the flood risk listAL6 9PR: not on the flood risk listAL6 9PS: not on the flood risk listAL6 9PT: not on the flood risk listAL6 9PU: not on the flood risk listAL6 9PW: not on the flood risk listAL6 9PX: not on the flood risk listAL6 9PY: not on the flood risk listAL6 9PZ: not on the flood risk listAL6 9QA: not on the flood risk listAL6 9QB: not on the flood risk listAL6 9QD: not on the flood risk listAL6 9QE: not on the flood risk listAL6 9QF: not on the flood risk listAL6 9RA: not on the flood risk listAL6 9RB: not on the flood risk listAL6 9RD: not on the flood risk listAL6 9RE: not on the flood risk listAL6 9RF: not on the flood risk listAL6 9RG: not on the flood risk listAL6 9RH: not on the flood risk listAL6 9RJ: not on the flood risk listAL6 9RL: not on the flood risk listAL6 9RN: not on the flood risk listAL6 9RP: not on the flood risk listAL6 9RQ: not on the flood risk listAL6 9RR: not on the flood risk listAL6 9RS: not on the flood risk listAL6 9RW: not on the flood risk listAL6 9SA: not on the flood risk listAL6 9SB: not on the flood risk listAL6 9SD: not on the flood risk listAL6 9SE: not on the flood risk listAL6 9SF: not on the flood risk listAL6 9SG: not on the flood risk listAL6 9SH: not on the flood risk listAL6 9SJ: not on the flood risk listAL6 9SN: not on the flood risk listAL6 9SP: not on the flood risk listAL6 9SQ: not on the flood risk listAL6 9SS: not on the flood risk listAL6 9ST: not on the flood risk listAL6 9SU: not on the flood risk listAL6 9SW: not on the flood risk listAL6 9SX: not on the flood risk listAL6 9SY: not on the flood risk listAL6 9SZ: not on the flood risk listAL6 9TA: not on the flood risk listAL6 9TB: not on the flood risk listAL6 9TD: not on the flood risk listAL6 9TE: not on the flood risk listAL6 9TF: not on the flood risk listAL6 9TG: not on the flood risk listAL6 9TJ: not on the flood risk listAL6 9TP: not on the flood risk listAL6 9TQ: not on the flood risk listAL6 9TR: not on the flood risk listAL6 9TS: not on the flood risk listAL6 9TT: not on the flood risk listAL6 9TU: not on the flood risk listAL6 9TX: not on the flood risk listAL6 9TY: not on the flood risk listAL6 9UA: not on the flood risk listAL6 9UB: not on the flood risk listAL6 9UD: not on the flood risk listAL6 9UE: not on the flood risk listAL6 9UF: not on the flood risk listAL6 9UG: not on the flood risk listAL6 9UH: not on the flood risk listAL6 9UJ: not on the flood risk listAL6 9UN: not on the flood risk listAL6 9UQ: not on the flood risk listAL6 9EA: low flood risk at worstAL6 9EF: low flood risk at worstAL6 9HQ: low flood risk at worstAL6 9ET: low flood risk at worstAL6 9EU: low flood risk at worstAL6 9EX: low flood risk at worstAL6 9GS: low flood risk at worstAL6 9NU: low flood risk at worstAL6 9NH: medium flood risk at worstAL6 9NQ: medium flood risk at worstAL6 9EQ: high flood risk Woolmer GreenWelwynCodicote Map of every postcode in the AL6 9 sector, by flood risk Of the 241 postcodes in the AL6 9 sector that ONS places, 1 have a home or business at high risk, 2 are at medium risk at worst, 9 are at low risk at worst and 229 are not on the Environment Agency's at-risk list. Places named: Welwyn, Codicote. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. WelwynCodicote
  • A home or business at high risk: 1
  • At medium risk at worst: 2
  • At low risk at worst: 9
  • At very low risk only: 0
  • Not on the at-risk list: 229

Of the 241 postcodes in the AL6 9 sector that ONS places, 1 have a home or business at high risk, 2 are at medium risk at worst, 9 are at low risk at worst and 229 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.

AL6 9EQ2 at high risk

What do homes sell for in AL6 9?

Homes in AL6 9 sold for a typical £620,000 in the 12 months to August 2026, across 45 sales, down 3.9% on the 12 months before, HM Land Registry's figures show.

£620,000 typical price, the 12 months to August 2026
£645,000 12 months to August 2025
▼ down 3.9% on the 12 months before
  • Detached £920,000 13 sales
  • Semi-detached £625,000 11 sales
  • Terraced £491,500 16 sales
  • Flat or maisonette £240,000 5 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 AL6 9. 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 AL6 9

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.

AL6 9AAAL6 9ABAL6 9ADAL6 9AEAL6 9AFAL6 9AHAL6 9AJAL6 9ALAL6 9ASAL6 9ATAL6 9AUAL6 9BAAL6 9BBAL6 9BDAL6 9BEAL6 9BGAL6 9BHAL6 9BJAL6 9BLAL6 9BNAL6 9BPAL6 9BQAL6 9BSAL6 9BTAL6 9BUAL6 9BWAL6 9BXAL6 9BYAL6 9BZAL6 9DAAL6 9DBAL6 9DFAL6 9DJAL6 9DLAL6 9DNAL6 9DPAL6 9DQAL6 9DSAL6 9DWAL6 9DYAL6 9DZAL6 9EAAL6 9EDAL6 9EEAL6 9EFAL6 9EGAL6 9EHAL6 9EJAL6 9ELAL6 9ENAL6 9EPAL6 9EQAL6 9ERAL6 9ESAL6 9ETAL6 9EUAL6 9EXAL6 9EYAL6 9EZAL6 9FBAL6 9FDAL6 9FEAL6 9FFAL6 9FGAL6 9FHAL6 9FJAL6 9FLAL6 9FNAL6 9FPAL6 9FQAL6 9FRAL6 9FSAL6 9FTAL6 9FUAL6 9FWAL6 9FXAL6 9FYAL6 9FZAL6 9GAAL6 9GBAL6 9GDAL6 9GEAL6 9GFAL6 9GGAL6 9GHAL6 9GJAL6 9GLAL6 9GNAL6 9GPAL6 9GQAL6 9GRAL6 9GSAL6 9HAAL6 9HBAL6 9HHAL6 9HNAL6 9HQAL6 9HRAL6 9HSAL6 9HTAL6 9HUAL6 9HXAL6 9HYAL6 9HZAL6 9JAAL6 9JBAL6 9JDAL6 9JEAL6 9JFAL6 9JGAL6 9JHAL6 9JJAL6 9JLAL6 9JNAL6 9JPAL6 9JQAL6 9JRAL6 9JSAL6 9JTAL6 9JUAL6 9JWAL6 9JXAL6 9JYAL6 9JZAL6 9LAAL6 9LBAL6 9LDAL6 9LEAL6 9LFAL6 9LHAL6 9LNAL6 9LPAL6 9LRAL6 9LSAL6 9LTAL6 9LUAL6 9LWAL6 9LXAL6 9LYAL6 9LZAL6 9NAAL6 9NBAL6 9NDAL6 9NEAL6 9NFAL6 9NGAL6 9NHAL6 9NJAL6 9NLAL6 9NNAL6 9NPAL6 9NQAL6 9NRAL6 9NSAL6 9NTAL6 9NUAL6 9NWAL6 9NXAL6 9PAAL6 9PBAL6 9PDAL6 9PEAL6 9PFAL6 9PGAL6 9PHAL6 9PJAL6 9PLAL6 9PNAL6 9PPAL6 9PQAL6 9PRAL6 9PSAL6 9PTAL6 9PUAL6 9PWAL6 9PXAL6 9PYAL6 9PZAL6 9QAAL6 9QBAL6 9QDAL6 9QEAL6 9QFAL6 9RAAL6 9RBAL6 9RDAL6 9REAL6 9RFAL6 9RGAL6 9RHAL6 9RJAL6 9RLAL6 9RNAL6 9RPAL6 9RQAL6 9RRAL6 9RSAL6 9RWAL6 9SAAL6 9SBAL6 9SDAL6 9SEAL6 9SFAL6 9SGAL6 9SHAL6 9SJAL6 9SNAL6 9SPAL6 9SQAL6 9SSAL6 9STAL6 9SUAL6 9SWAL6 9SXAL6 9SYAL6 9SZAL6 9TAAL6 9TBAL6 9TDAL6 9TEAL6 9TFAL6 9TGAL6 9TJAL6 9TPAL6 9TQAL6 9TRAL6 9TSAL6 9TTAL6 9TUAL6 9TXAL6 9TYAL6 9UAAL6 9UBAL6 9UDAL6 9UEAL6 9UFAL6 9UGAL6 9UHAL6 9UJAL6 9UNAL6 9UQ

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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