MK45 4 postcode sector in the MK45 district

MK45 4 is a sector of the MK45 district: every postcode that starts MK45 4. It has 255 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 MK45 4 sector, by flood risk

Map of every postcode in the MK45 4 sector, by flood risk Of the 255 postcodes in the MK45 4 sector that ONS places, 4 have a home or business at high risk, 5 are at medium risk at worst, 8 are at low risk at worst and 238 are not on the Environment Agency's at-risk list. Places named: Kempston, Flitwick, Sandy, Ampthill, Shefford. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A600A6A603A507 MK45 4AB: not on the flood risk listMK45 4AD: not on the flood risk listMK45 4AE: not on the flood risk listMK45 4AF: not on the flood risk listMK45 4AG: not on the flood risk listMK45 4AH: not on the flood risk listMK45 4AP: not on the flood risk listMK45 4AQ: not on the flood risk listMK45 4AS: not on the flood risk listMK45 4AU: not on the flood risk listMK45 4AZ: not on the flood risk listMK45 4BB: not on the flood risk listMK45 4BE: not on the flood risk listMK45 4BF: not on the flood risk listMK45 4BG: not on the flood risk listMK45 4BH: not on the flood risk listMK45 4BJ: not on the flood risk listMK45 4BN: not on the flood risk listMK45 4BP: not on the flood risk listMK45 4BT: not on the flood risk listMK45 4BU: not on the flood risk listMK45 4BX: not on the flood risk listMK45 4BY: not on the flood risk listMK45 4BZ: not on the flood risk listMK45 4DA: not on the flood risk listMK45 4DB: not on the flood risk listMK45 4DD: not on the flood risk listMK45 4DE: not on the flood risk listMK45 4DF: not on the flood risk listMK45 4DG: not on the flood risk listMK45 4DH: not on the flood risk listMK45 4DJ: not on the flood risk listMK45 4DL: not on the flood risk listMK45 4DP: not on the flood risk listMK45 4DR: not on the flood risk listMK45 4DS: not on the flood risk listMK45 4DU: not on the flood risk listMK45 4DX: not on the flood risk listMK45 4EA: not on the flood risk listMK45 4EB: not on the flood risk listMK45 4EE: not on the flood risk listMK45 4EF: not on the flood risk listMK45 4EG: not on the flood risk listMK45 4EL: not on the flood risk listMK45 4EN: not on the flood risk listMK45 4ES: not on the flood risk listMK45 4ET: not on the flood risk listMK45 4EY: not on the flood risk listMK45 4EZ: not on the flood risk listMK45 4FB: not on the flood risk listMK45 4FD: not on the flood risk listMK45 4FJ: not on the flood risk listMK45 4FL: not on the flood risk listMK45 4FN: not on the flood risk listMK45 4FR: not on the flood risk listMK45 4FY: not on the flood risk listMK45 4GA: not on the flood risk listMK45 4GD: not on the flood risk listMK45 4GE: not on the flood risk listMK45 4GG: not on the flood risk listMK45 4GJ: not on the flood risk listMK45 4GN: not on the flood risk listMK45 4GQ: not on the flood risk listMK45 4GS: not on the flood risk listMK45 4GT: not on the flood risk listMK45 4HA: not on the flood risk listMK45 4HB: not on the flood risk listMK45 4HF: not on the flood risk listMK45 4HH: not on the flood risk listMK45 4HL: not on the flood risk listMK45 4HN: not on the flood risk listMK45 4HP: not on the flood risk listMK45 4HR: not on the flood risk listMK45 4HS: not on the flood risk listMK45 4HY: not on the flood risk listMK45 4HZ: not on the flood risk listMK45 4JA: not on the flood risk listMK45 4JB: not on the flood risk listMK45 4JD: not on the flood risk listMK45 4JF: not on the flood risk listMK45 4JG: not on the flood risk listMK45 4JH: not on the flood risk listMK45 4JJ: not on the flood risk listMK45 4JN: not on the flood risk listMK45 4JP: not on the flood risk listMK45 4JQ: not on the flood risk listMK45 4JS: not on the flood risk listMK45 4JT: not on the flood risk listMK45 4JU: not on the flood risk listMK45 4JX: not on the flood risk listMK45 4JZ: not on the flood risk listMK45 4LA: not on the flood risk listMK45 4LB: not on the flood risk listMK45 4LD: not on the flood risk listMK45 4LE: not on the flood risk listMK45 4LG: not on the flood risk listMK45 4LJ: not on the flood risk listMK45 4LP: not on the flood risk listMK45 4LQ: not on the flood risk listMK45 4LR: not on the flood risk listMK45 4LT: not on the flood risk listMK45 4LU: not on the flood risk listMK45 4LX: not on the flood risk listMK45 4LY: not on the flood risk listMK45 4LZ: not on the flood risk listMK45 4NE: not on the flood risk listMK45 4NF: not on the flood risk listMK45 4NH: not on the flood risk listMK45 4NJ: not on the flood risk listMK45 4NL: not on the flood risk listMK45 4NP: not on the flood risk listMK45 4NR: not on the flood risk listMK45 4NS: not on the flood risk listMK45 4NT: not on the flood risk listMK45 4NU: not on the flood risk listMK45 4NW: not on the flood risk listMK45 4NX: not on the flood risk listMK45 4NY: not on the flood risk listMK45 4NZ: not on the flood risk listMK45 4PA: not on the flood risk listMK45 4PF: not on the flood risk listMK45 4PW: not on the flood risk listMK45 4QA: not on the flood risk listMK45 4QE: not on the flood risk listMK45 4QF: not on the flood risk listMK45 4QH: not on the flood risk listMK45 4QJ: not on the flood risk listMK45 4QN: not on the flood risk listMK45 4QP: not on the flood risk listMK45 4QT: not on the flood risk listMK45 4QX: not on the flood risk listMK45 4QZ: not on the flood risk listMK45 4RA: not on the flood risk listMK45 4RB: not on the flood risk listMK45 4RF: not on the flood risk listMK45 4RG: not on the flood risk listMK45 4RH: not on the flood risk listMK45 4RN: not on the flood risk listMK45 4RP: not on the flood risk listMK45 4RX: not on the flood risk listMK45 4SE: not on the flood risk listMK45 4SG: not on the flood risk listMK45 4SH: not on the flood risk listMK45 4SP: not on the flood risk listMK45 4ST: not on the flood risk listMK45 4SU: not on the flood risk listMK45 4SY: not on the flood risk listMK45 4WG: not on the flood risk listMK45 4AR: low flood risk at worstMK45 4BS: low flood risk at worstMK45 4HD: low flood risk at worstMK45 4HT: low flood risk at worstMK45 4JR: low flood risk at worstMK45 4SB: low flood risk at worstMK45 4SF: low flood risk at worstMK45 4AA: medium flood risk at worstMK45 4HJ: medium flood risk at worstMK45 4QU: medium flood risk at worstMK45 4QS: medium flood risk at worstMK45 4SL: medium flood risk at worstMK45 4BA: high flood riskMK45 4TD: high flood riskMK45 4JE: high flood riskMK45 4SJ: high flood risk KempstonFlitwickSandyAmpthillShefford Map of every postcode in the MK45 4 sector, by flood risk Of the 255 postcodes in the MK45 4 sector that ONS places, 4 have a home or business at high risk, 5 are at medium risk at worst, 8 are at low risk at worst and 238 are not on the Environment Agency's at-risk list. Places named: Kempston, Flitwick, Ampthill. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A600A6A603 KempstonFlitwickAmpthill
  • A home or business at high risk: 4
  • At medium risk at worst: 5
  • At low risk at worst: 8
  • At very low risk only: 0
  • Not on the at-risk list: 238

Of the 255 postcodes in the MK45 4 sector that ONS places, 4 have a home or business at high risk, 5 are at medium risk at worst, 8 are at low risk at worst and 238 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.

MK45 4BA4 at high riskMK45 4SJ4 at high riskMK45 4TD3 at high riskMK45 4JE1 at high risk

What do homes sell for in MK45 4?

Homes in MK45 4 sold for a typical £429,975 in the 12 months to August 2026, across 140 sales, up 8.4% on the 12 months before, HM Land Registry's figures show.

£429,975 typical price, the 12 months to August 2026
£396,500 12 months to August 2025
▲ up 8.4% on the 12 months before
  • Detached £620,000 51 sales
  • Semi-detached £381,000 54 sales
  • Terraced £320,000 23 sales
  • Flat or maisonette £232,500 12 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 MK45 4. 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 MK45 4

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.

MK45 4AAMK45 4ABMK45 4ADMK45 4AEMK45 4AFMK45 4AGMK45 4AHMK45 4AJMK45 4ALMK45 4ANMK45 4APMK45 4AQMK45 4ARMK45 4ASMK45 4AUMK45 4AWMK45 4AYMK45 4AZMK45 4BAMK45 4BBMK45 4BDMK45 4BEMK45 4BFMK45 4BGMK45 4BHMK45 4BJMK45 4BLMK45 4BNMK45 4BPMK45 4BQMK45 4BSMK45 4BTMK45 4BUMK45 4BXMK45 4BYMK45 4BZMK45 4DAMK45 4DBMK45 4DDMK45 4DEMK45 4DFMK45 4DGMK45 4DHMK45 4DJMK45 4DLMK45 4DNMK45 4DPMK45 4DRMK45 4DSMK45 4DUMK45 4DXMK45 4DYMK45 4EAMK45 4EBMK45 4EDMK45 4EEMK45 4EFMK45 4EGMK45 4EHMK45 4EJMK45 4ELMK45 4ENMK45 4EPMK45 4EQMK45 4ERMK45 4ESMK45 4ETMK45 4EUMK45 4EWMK45 4EXMK45 4EYMK45 4EZMK45 4FBMK45 4FDMK45 4FEMK45 4FJMK45 4FLMK45 4FNMK45 4FPMK45 4FQMK45 4FRMK45 4FSMK45 4FTMK45 4FWMK45 4FXMK45 4FYMK45 4FZMK45 4GAMK45 4GBMK45 4GDMK45 4GEMK45 4GFMK45 4GGMK45 4GHMK45 4GJMK45 4GLMK45 4GNMK45 4GPMK45 4GQMK45 4GRMK45 4GSMK45 4GTMK45 4GUMK45 4GWMK45 4GXMK45 4GYMK45 4HAMK45 4HBMK45 4HDMK45 4HEMK45 4HFMK45 4HHMK45 4HJMK45 4HLMK45 4HNMK45 4HPMK45 4HRMK45 4HSMK45 4HTMK45 4HYMK45 4HZMK45 4JAMK45 4JBMK45 4JDMK45 4JEMK45 4JFMK45 4JGMK45 4JHMK45 4JJMK45 4JLMK45 4JNMK45 4JPMK45 4JQMK45 4JRMK45 4JSMK45 4JTMK45 4JUMK45 4JWMK45 4JXMK45 4JYMK45 4JZMK45 4LAMK45 4LBMK45 4LDMK45 4LEMK45 4LFMK45 4LGMK45 4LHMK45 4LJMK45 4LLMK45 4LNMK45 4LPMK45 4LQMK45 4LRMK45 4LSMK45 4LTMK45 4LUMK45 4LWMK45 4LXMK45 4LYMK45 4LZMK45 4NAMK45 4NBMK45 4NDMK45 4NEMK45 4NFMK45 4NGMK45 4NHMK45 4NJMK45 4NLMK45 4NPMK45 4NRMK45 4NSMK45 4NTMK45 4NUMK45 4NWMK45 4NXMK45 4NYMK45 4NZMK45 4PAMK45 4PBMK45 4PDMK45 4PEMK45 4PFMK45 4PGMK45 4PHMK45 4PJMK45 4PLMK45 4PPMK45 4PQMK45 4PRMK45 4PSMK45 4PTMK45 4PUMK45 4PWMK45 4PXMK45 4PYMK45 4PZMK45 4QAMK45 4QBMK45 4QDMK45 4QEMK45 4QFMK45 4QGMK45 4QHMK45 4QJMK45 4QLMK45 4QNMK45 4QPMK45 4QQMK45 4QRMK45 4QSMK45 4QTMK45 4QUMK45 4QXMK45 4QYMK45 4QZMK45 4RAMK45 4RBMK45 4REMK45 4RFMK45 4RGMK45 4RHMK45 4RNMK45 4RPMK45 4RSMK45 4RUMK45 4RWMK45 4RXMK45 4RYMK45 4RZMK45 4SAMK45 4SBMK45 4SDMK45 4SEMK45 4SFMK45 4SGMK45 4SHMK45 4SJMK45 4SLMK45 4SNMK45 4SPMK45 4SQMK45 4SRMK45 4SSMK45 4STMK45 4SUMK45 4SXMK45 4SYMK45 4TAMK45 4TBMK45 4TDMK45 4TEMK45 4WGMK45 4YX

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.