MK40 1 postcode sector in the MK40 district

MK40 1 is a sector of the MK40 district: every postcode that starts MK40 1. It has 133 postcodes in use, 16 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 MK40 1 sector, by flood risk

Map of every postcode in the MK40 1 sector, by flood risk Of the 133 postcodes in the MK40 1 sector that ONS places, 1 have a home or business at high risk, 1 are at medium risk at worst, 30 are at low risk at worst and 101 are not on the Environment Agency's at-risk list. Places named: Greyfriars, Castle & Newnham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A4280 MK40 1AA: not on the flood risk listMK40 1AH: not on the flood risk listMK40 1AJ: not on the flood risk listMK40 1AL: not on the flood risk listMK40 1AN: not on the flood risk listMK40 1AQ: not on the flood risk listMK40 1AW: not on the flood risk listMK40 1AX: not on the flood risk listMK40 1AZ: not on the flood risk listMK40 1BH: not on the flood risk listMK40 1BJ: not on the flood risk listMK40 1BL: not on the flood risk listMK40 1BP: not on the flood risk listMK40 1BS: not on the flood risk listMK40 1BY: not on the flood risk listMK40 1BZ: not on the flood risk listMK40 1DA: not on the flood risk listMK40 1DE: not on the flood risk listMK40 1DG: not on the flood risk listMK40 1DH: not on the flood risk listMK40 1DJ: not on the flood risk listMK40 1DN: not on the flood risk listMK40 1DP: not on the flood risk listMK40 1DQ: not on the flood risk listMK40 1DS: not on the flood risk listMK40 1DU: not on the flood risk listMK40 1DW: not on the flood risk listMK40 1DX: not on the flood risk listMK40 1DY: not on the flood risk listMK40 1DZ: not on the flood risk listMK40 1EA: not on the flood risk listMK40 1ED: not on the flood risk listMK40 1EF: not on the flood risk listMK40 1EG: not on the flood risk listMK40 1EJ: not on the flood risk listMK40 1EL: not on the flood risk listMK40 1EP: not on the flood risk listMK40 1EQ: not on the flood risk listMK40 1EZ: not on the flood risk listMK40 1FB: not on the flood risk listMK40 1HA: not on the flood risk listMK40 1HB: not on the flood risk listMK40 1HG: not on the flood risk listMK40 1HH: not on the flood risk listMK40 1HS: not on the flood risk listMK40 1HT: not on the flood risk listMK40 1HU: not on the flood risk listMK40 1HZ: not on the flood risk listMK40 1JA: not on the flood risk listMK40 1JB: not on the flood risk listMK40 1JD: not on the flood risk listMK40 1JE: not on the flood risk listMK40 1JF: not on the flood risk listMK40 1JH: not on the flood risk listMK40 1JJ: not on the flood risk listMK40 1JN: not on the flood risk listMK40 1JP: not on the flood risk listMK40 1JX: not on the flood risk listMK40 1LA: not on the flood risk listMK40 1LB: not on the flood risk listMK40 1LD: not on the flood risk listMK40 1LE: not on the flood risk listMK40 1LN: not on the flood risk listMK40 1LQ: not on the flood risk listMK40 1LT: not on the flood risk listMK40 1LY: not on the flood risk listMK40 1NE: not on the flood risk listMK40 1NH: not on the flood risk listMK40 1NJ: not on the flood risk listMK40 1NN: not on the flood risk listMK40 1NS: not on the flood risk listMK40 1NT: not on the flood risk listMK40 1NU: not on the flood risk listMK40 1PE: not on the flood risk listMK40 1PF: not on the flood risk listMK40 1PG: not on the flood risk listMK40 1QA: not on the flood risk listMK40 1QE: not on the flood risk listMK40 1QH: not on the flood risk listMK40 1QN: not on the flood risk listMK40 1QT: not on the flood risk listMK40 1QW: not on the flood risk listMK40 1RN: not on the flood risk listMK40 1RW: not on the flood risk listMK40 1RY: not on the flood risk listMK40 1RZ: not on the flood risk listMK40 1SB: not on the flood risk listMK40 1SL: not on the flood risk listMK40 1SP: not on the flood risk listMK40 1SU: not on the flood risk listMK40 1SY: not on the flood risk listMK40 1TN: not on the flood risk listMK40 1TT: not on the flood risk listMK40 1YN: not on the flood risk listMK40 1ZL: not on the flood risk listMK40 1AR: low flood risk at worstMK40 1AS: low flood risk at worstMK40 1AT: low flood risk at worstMK40 1AY: low flood risk at worstMK40 1BN: low flood risk at worstMK40 1HJ: low flood risk at worstMK40 1HP: low flood risk at worstMK40 1LJ: low flood risk at worstMK40 1LR: low flood risk at worstMK40 1LX: low flood risk at worstMK40 1PJ: low flood risk at worstMK40 1PL: low flood risk at worstMK40 1PR: low flood risk at worstMK40 1PS: low flood risk at worstMK40 1PW: low flood risk at worstMK40 1PX: low flood risk at worstMK40 1QB: low flood risk at worstMK40 1QS: low flood risk at worstMK40 1QU: low flood risk at worstMK40 1QX: low flood risk at worstMK40 1RA: low flood risk at worstMK40 1RB: low flood risk at worstMK40 1RD: low flood risk at worstMK40 1RH: low flood risk at worstMK40 1SQ: low flood risk at worstMK40 1TE: low flood risk at worstMK40 1TJ: low flood risk at worstMK40 1TP: low flood risk at worstMK40 1TU: low flood risk at worstMK40 1UH: low flood risk at worstMK40 1TH: medium flood risk at worstMK40 1TF: high flood risk GreyfriarsCastle & Newnham Map of every postcode in the MK40 1 sector, by flood risk Of the 133 postcodes in the MK40 1 sector that ONS places, 1 have a home or business at high risk, 1 are at medium risk at worst, 30 are at low risk at worst and 101 are not on the Environment Agency's at-risk list. Places named: Greyfriars, Castle & Newnham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. GreyfriarsCastle & Newnham
  • A home or business at high risk: 1
  • At medium risk at worst: 1
  • At low risk at worst: 30
  • At very low risk only: 0
  • Not on the at-risk list: 101

Of the 133 postcodes in the MK40 1 sector that ONS places, 1 have a home or business at high risk, 1 are at medium risk at worst, 30 are at low risk at worst and 101 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. Names in italics are council wards: we hold no town or village names here.

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.

MK40 1TF1 at high risk

What do homes sell for in MK40 1?

Homes in MK40 1 sold for a typical £185,000 in the 12 months to August 2026, across 22 sales, up 12.1% on the 12 months before, HM Land Registry's figures show.

£185,000 typical price, the 12 months to August 2026
£165,000 12 months to August 2025
▲ up 12.1% on the 12 months before
  • Detached 1 sale, too few to price
  • Terraced 3 sales, too few to price
  • Flat or maisonette £168,000 18 sales

Standard sales of homes at market value at the postcodes that start MK40 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 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 MK40 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.

MK40 1AAMK40 1AHMK40 1AJMK40 1ALMK40 1ANMK40 1AQMK40 1ARMK40 1ASMK40 1ATMK40 1AWMK40 1AXMK40 1AYMK40 1AZMK40 1BHMK40 1BJMK40 1BLMK40 1BNMK40 1BPMK40 1BSMK40 1BYMK40 1BZMK40 1DAMK40 1DEMK40 1DGMK40 1DHMK40 1DJMK40 1DNMK40 1DPMK40 1DQMK40 1DSMK40 1DUMK40 1DWMK40 1DXMK40 1DYMK40 1DZMK40 1EAMK40 1EDMK40 1EFMK40 1EGMK40 1EJMK40 1ELMK40 1EPMK40 1EQMK40 1EZMK40 1FBMK40 1FDMK40 1HAMK40 1HBMK40 1HGMK40 1HHMK40 1HJMK40 1HPMK40 1HSMK40 1HTMK40 1HUMK40 1HZMK40 1JAMK40 1JBMK40 1JDMK40 1JEMK40 1JFMK40 1JHMK40 1JJMK40 1JLMK40 1JNMK40 1JPMK40 1JRMK40 1JWMK40 1JXMK40 1LAMK40 1LBMK40 1LDMK40 1LEMK40 1LJMK40 1LNMK40 1LQMK40 1LRMK40 1LTMK40 1LXMK40 1LYMK40 1NEMK40 1NHMK40 1NJMK40 1NNMK40 1NSMK40 1NTMK40 1NUMK40 1PEMK40 1PFMK40 1PGMK40 1PJMK40 1PLMK40 1PRMK40 1PSMK40 1PWMK40 1PXMK40 1QAMK40 1QBMK40 1QEMK40 1QHMK40 1QNMK40 1QSMK40 1QTMK40 1QUMK40 1QWMK40 1QXMK40 1RAMK40 1RBMK40 1RDMK40 1RHMK40 1RNMK40 1RWMK40 1RYMK40 1RZMK40 1SBMK40 1SLMK40 1SPMK40 1SQMK40 1SUMK40 1SYMK40 1TEMK40 1TFMK40 1THMK40 1TJMK40 1TNMK40 1TPMK40 1TQMK40 1TTMK40 1TUMK40 1UHMK40 1YDMK40 1YNMK40 1ZL

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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