MK3 5 postcode sector in the MK3 district

MK3 5 is a sector of the MK3 district: every postcode that starts MK3 5. It has 244 postcodes in use, one of them a large-user postcode. 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 MK3 5 sector, by flood risk

Map of every postcode in the MK3 5 sector, by flood risk Of the 244 postcodes in the MK3 5 sector that ONS places, 4 are at medium risk at worst, 6 are at low risk at worst and 234 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Bletchley, Newton Longville. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. MK3 5AA: not on the flood risk listMK3 5AB: not on the flood risk listMK3 5AD: not on the flood risk listMK3 5AE: not on the flood risk listMK3 5AF: not on the flood risk listMK3 5AG: not on the flood risk listMK3 5AH: not on the flood risk listMK3 5AJ: not on the flood risk listMK3 5AL: not on the flood risk listMK3 5AN: not on the flood risk listMK3 5AP: not on the flood risk listMK3 5AQ: not on the flood risk listMK3 5AR: not on the flood risk listMK3 5AS: not on the flood risk listMK3 5AT: not on the flood risk listMK3 5AU: not on the flood risk listMK3 5AW: not on the flood risk listMK3 5AX: not on the flood risk listMK3 5AY: not on the flood risk listMK3 5AZ: not on the flood risk listMK3 5BB: not on the flood risk listMK3 5BD: not on the flood risk listMK3 5BE: not on the flood risk listMK3 5BG: not on the flood risk listMK3 5BH: not on the flood risk listMK3 5BJ: not on the flood risk listMK3 5BL: not on the flood risk listMK3 5BN: not on the flood risk listMK3 5BQ: not on the flood risk listMK3 5BS: not on the flood risk listMK3 5BT: not on the flood risk listMK3 5BW: not on the flood risk listMK3 5BY: not on the flood risk listMK3 5BZ: not on the flood risk listMK3 5DA: not on the flood risk listMK3 5DB: not on the flood risk listMK3 5DD: not on the flood risk listMK3 5DE: not on the flood risk listMK3 5DF: not on the flood risk listMK3 5DG: not on the flood risk listMK3 5DH: not on the flood risk listMK3 5DQ: not on the flood risk listMK3 5DR: not on the flood risk listMK3 5DS: not on the flood risk listMK3 5DT: not on the flood risk listMK3 5DU: not on the flood risk listMK3 5DX: not on the flood risk listMK3 5DY: not on the flood risk listMK3 5DZ: not on the flood risk listMK3 5EA: not on the flood risk listMK3 5EB: not on the flood risk listMK3 5ED: not on the flood risk listMK3 5EE: not on the flood risk listMK3 5EF: not on the flood risk listMK3 5EG: not on the flood risk listMK3 5EH: not on the flood risk listMK3 5EJ: not on the flood risk listMK3 5EL: not on the flood risk listMK3 5EN: not on the flood risk listMK3 5EP: not on the flood risk listMK3 5EQ: not on the flood risk listMK3 5ER: not on the flood risk listMK3 5ES: not on the flood risk listMK3 5ET: not on the flood risk listMK3 5EU: not on the flood risk listMK3 5EW: not on the flood risk listMK3 5EX: not on the flood risk listMK3 5EY: not on the flood risk listMK3 5FB: not on the flood risk listMK3 5FD: not on the flood risk listMK3 5FE: not on the flood risk listMK3 5FF: not on the flood risk listMK3 5FG: not on the flood risk listMK3 5FH: not on the flood risk listMK3 5FJ: not on the flood risk listMK3 5FL: not on the flood risk listMK3 5FN: not on the flood risk listMK3 5FR: not on the flood risk listMK3 5FS: not on the flood risk listMK3 5FU: not on the flood risk listMK3 5FX: not on the flood risk listMK3 5FY: not on the flood risk listMK3 5FZ: not on the flood risk listMK3 5GF: not on the flood risk listMK3 5GG: not on the flood risk listMK3 5GJ: not on the flood risk listMK3 5GN: not on the flood risk listMK3 5GP: not on the flood risk listMK3 5GQ: not on the flood risk listMK3 5GR: not on the flood risk listMK3 5GS: not on the flood risk listMK3 5GT: not on the flood risk listMK3 5GU: not on the flood risk listMK3 5GW: not on the flood risk listMK3 5GX: not on the flood risk listMK3 5GY: not on the flood risk listMK3 5GZ: not on the flood risk listMK3 5HA: not on the flood risk listMK3 5HB: not on the flood risk listMK3 5HD: not on the flood risk listMK3 5HE: not on the flood risk listMK3 5HF: not on the flood risk listMK3 5HG: not on the flood risk listMK3 5HH: not on the flood risk listMK3 5HJ: not on the flood risk listMK3 5HL: not on the flood risk listMK3 5HN: not on the flood risk listMK3 5HP: not on the flood risk listMK3 5HQ: not on the flood risk listMK3 5HR: not on the flood risk listMK3 5HS: not on the flood risk listMK3 5HT: not on the flood risk listMK3 5HW: not on the flood risk listMK3 5HX: not on the flood risk listMK3 5HY: not on the flood risk listMK3 5HZ: not on the flood risk listMK3 5JA: not on the flood risk listMK3 5JB: not on the flood risk listMK3 5JD: not on the flood risk listMK3 5JE: not on the flood risk listMK3 5JF: not on the flood risk listMK3 5JG: not on the flood risk listMK3 5JH: not on the flood risk listMK3 5JJ: not on the flood risk listMK3 5JQ: not on the flood risk listMK3 5JU: not on the flood risk listMK3 5JY: not on the flood risk listMK3 5JZ: not on the flood risk listMK3 5LA: not on the flood risk listMK3 5LB: not on the flood risk listMK3 5LG: not on the flood risk listMK3 5LH: not on the flood risk listMK3 5LJ: not on the flood risk listMK3 5LL: not on the flood risk listMK3 5LP: not on the flood risk listMK3 5LR: not on the flood risk listMK3 5LS: not on the flood risk listMK3 5LT: not on the flood risk listMK3 5LU: not on the flood risk listMK3 5LY: not on the flood risk listMK3 5LZ: not on the flood risk listMK3 5NA: not on the flood risk listMK3 5NB: not on the flood risk listMK3 5ND: not on the flood risk listMK3 5NE: not on the flood risk listMK3 5NF: not on the flood risk listMK3 5NG: not on the flood risk listMK3 5NH: not on the flood risk listMK3 5NJ: not on the flood risk listMK3 5NL: not on the flood risk listMK3 5NP: not on the flood risk listMK3 5NQ: not on the flood risk listMK3 5NR: not on the flood risk listMK3 5NS: not on the flood risk listMK3 5NT: not on the flood risk listMK3 5NU: not on the flood risk listMK3 5NW: not on the flood risk listMK3 5NX: not on the flood risk listMK3 5NY: not on the flood risk listMK3 5NZ: not on the flood risk listMK3 5PB: not on the flood risk listMK3 5PD: not on the flood risk listMK3 5PL: not on the flood risk listMK3 5PN: not on the flood risk listMK3 5PR: not on the flood risk listMK3 5PS: not on the flood risk listMK3 5PT: not on the flood risk listMK3 5PU: not on the flood risk listMK3 5PW: not on the flood risk listMK3 5PX: not on the flood risk listMK3 5PY: not on the flood risk listMK3 5PZ: not on the flood risk listMK3 5QA: not on the flood risk listMK3 5QB: not on the flood risk listMK3 5QD: not on the flood risk listMK3 5QE: not on the flood risk listMK3 5QF: not on the flood risk listMK3 5QG: not on the flood risk listMK3 5QH: not on the flood risk listMK3 5QJ: not on the flood risk listMK3 5QL: not on the flood risk listMK3 5QN: not on the flood risk listMK3 5QP: not on the flood risk listMK3 5QQ: not on the flood risk listMK3 5QR: not on the flood risk listMK3 5QS: not on the flood risk listMK3 5QT: not on the flood risk listMK3 5QU: not on the flood risk listMK3 5QW: not on the flood risk listMK3 5QX: not on the flood risk listMK3 5QY: not on the flood risk listMK3 5QZ: not on the flood risk listMK3 5RA: not on the flood risk listMK3 5RB: not on the flood risk listMK3 5RD: not on the flood risk listMK3 5RE: not on the flood risk listMK3 5RF: not on the flood risk listMK3 5RG: not on the flood risk listMK3 5RH: not on the flood risk listMK3 5RJ: not on the flood risk listMK3 5RL: not on the flood risk listMK3 5RN: not on the flood risk listMK3 5RP: not on the flood risk listMK3 5RQ: not on the flood risk listMK3 5RR: not on the flood risk listMK3 5RS: not on the flood risk listMK3 5RT: not on the flood risk listMK3 5RU: not on the flood risk listMK3 5RW: not on the flood risk listMK3 5RX: not on the flood risk listMK3 5RY: not on the flood risk listMK3 5RZ: not on the flood risk listMK3 5SA: not on the flood risk listMK3 5SB: not on the flood risk listMK3 5SD: not on the flood risk listMK3 5SE: not on the flood risk listMK3 5SF: not on the flood risk listMK3 5SG: not on the flood risk listMK3 5SH: not on the flood risk listMK3 5SJ: not on the flood risk listMK3 5SL: not on the flood risk listMK3 5SN: not on the flood risk listMK3 5SQ: not on the flood risk listMK3 5SR: not on the flood risk listMK3 5SS: not on the flood risk listMK3 5ST: not on the flood risk listMK3 5SU: not on the flood risk listMK3 5SW: not on the flood risk listMK3 5SX: not on the flood risk listMK3 5SY: not on the flood risk listMK3 5SZ: not on the flood risk listMK3 5BX: low flood risk at worstMK3 5FQ: low flood risk at worstMK3 5GB: low flood risk at worstMK3 5GD: low flood risk at worstMK3 5GH: low flood risk at worstMK3 5GL: low flood risk at worstMK3 5FP: medium flood risk at worstMK3 5FT: medium flood risk at worstMK3 5FW: medium flood risk at worstMK3 5GA: medium flood risk at worst BletchleyNewton Longville Map of every postcode in the MK3 5 sector, by flood risk Of the 244 postcodes in the MK3 5 sector that ONS places, 4 are at medium risk at worst, 6 are at low risk at worst and 234 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Bletchley, Newton Longville. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. BletchleyNewton Longville
  • A home or business at high risk: 0
  • At medium risk at worst: 4
  • At low risk at worst: 6
  • At very low risk only: 0
  • Not on the at-risk list: 234

Of the 244 postcodes in the MK3 5 sector that ONS places, 4 are at medium risk at worst, 6 are at low risk at worst and 234 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 medium risk at worst

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

MK3 5FP12 at medium riskMK3 5GA9 at medium riskMK3 5FT5 at medium riskMK3 5FW3 at medium risk

Further out, not drawn

This postcode lies well apart from the rest, so the map is drawn without it to show the rest closer; it is in every count.

MK3 5ZF

What do homes sell for in MK3 5?

Homes in MK3 5 sold for a typical £345,000 in the 12 months to August 2026, across 179 sales, up 7% on the 12 months before, HM Land Registry's figures show.

£345,000 typical price, the 12 months to August 2026
£322,500 12 months to August 2025
▲ up 7% on the 12 months before
  • Detached £450,000 41 sales
  • Semi-detached £342,500 88 sales
  • Terraced £300,000 28 sales
  • Flat or maisonette £187,500 22 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 MK3 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 MK3 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.

MK3 5AAMK3 5ABMK3 5ADMK3 5AEMK3 5AFMK3 5AGMK3 5AHMK3 5AJMK3 5ALMK3 5ANMK3 5APMK3 5AQMK3 5ARMK3 5ASMK3 5ATMK3 5AUMK3 5AWMK3 5AXMK3 5AYMK3 5AZMK3 5BBMK3 5BDMK3 5BEMK3 5BGMK3 5BHMK3 5BJMK3 5BLMK3 5BNMK3 5BQMK3 5BSMK3 5BTMK3 5BUMK3 5BWMK3 5BXMK3 5BYMK3 5BZMK3 5DAMK3 5DBMK3 5DDMK3 5DEMK3 5DFMK3 5DGMK3 5DHMK3 5DQMK3 5DRMK3 5DSMK3 5DTMK3 5DUMK3 5DXMK3 5DYMK3 5DZMK3 5EAMK3 5EBMK3 5EDMK3 5EEMK3 5EFMK3 5EGMK3 5EHMK3 5EJMK3 5ELMK3 5ENMK3 5EPMK3 5EQMK3 5ERMK3 5ESMK3 5ETMK3 5EUMK3 5EWMK3 5EXMK3 5EYMK3 5FBMK3 5FDMK3 5FEMK3 5FFMK3 5FGMK3 5FHMK3 5FJMK3 5FLMK3 5FNMK3 5FPMK3 5FQMK3 5FRMK3 5FSMK3 5FTMK3 5FUMK3 5FWMK3 5FXMK3 5FYMK3 5FZMK3 5GAMK3 5GBMK3 5GDMK3 5GFMK3 5GGMK3 5GHMK3 5GJMK3 5GLMK3 5GNMK3 5GPMK3 5GQMK3 5GRMK3 5GSMK3 5GTMK3 5GUMK3 5GWMK3 5GXMK3 5GYMK3 5GZMK3 5HAMK3 5HBMK3 5HDMK3 5HEMK3 5HFMK3 5HGMK3 5HHMK3 5HJMK3 5HLMK3 5HNMK3 5HPMK3 5HQMK3 5HRMK3 5HSMK3 5HTMK3 5HWMK3 5HXMK3 5HYMK3 5HZMK3 5JAMK3 5JBMK3 5JDMK3 5JEMK3 5JFMK3 5JGMK3 5JHMK3 5JJMK3 5JNMK3 5JQMK3 5JUMK3 5JYMK3 5JZMK3 5LAMK3 5LBMK3 5LGMK3 5LHMK3 5LJMK3 5LLMK3 5LPMK3 5LRMK3 5LSMK3 5LTMK3 5LUMK3 5LYMK3 5LZMK3 5NAMK3 5NBMK3 5NDMK3 5NEMK3 5NFMK3 5NGMK3 5NHMK3 5NJMK3 5NLMK3 5NPMK3 5NQMK3 5NRMK3 5NSMK3 5NTMK3 5NUMK3 5NWMK3 5NXMK3 5NYMK3 5NZMK3 5PBMK3 5PDMK3 5PLMK3 5PNMK3 5PRMK3 5PSMK3 5PTMK3 5PUMK3 5PWMK3 5PXMK3 5PYMK3 5PZMK3 5QAMK3 5QBMK3 5QDMK3 5QEMK3 5QFMK3 5QGMK3 5QHMK3 5QJMK3 5QLMK3 5QNMK3 5QPMK3 5QQMK3 5QRMK3 5QSMK3 5QTMK3 5QUMK3 5QWMK3 5QXMK3 5QYMK3 5QZMK3 5RAMK3 5RBMK3 5RDMK3 5REMK3 5RFMK3 5RGMK3 5RHMK3 5RJMK3 5RLMK3 5RNMK3 5RPMK3 5RQMK3 5RRMK3 5RSMK3 5RTMK3 5RUMK3 5RWMK3 5RXMK3 5RYMK3 5RZMK3 5SAMK3 5SBMK3 5SDMK3 5SEMK3 5SFMK3 5SGMK3 5SHMK3 5SJMK3 5SLMK3 5SNMK3 5SQMK3 5SRMK3 5SSMK3 5STMK3 5SUMK3 5SWMK3 5SXMK3 5SYMK3 5SZMK3 5ZF

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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