MK1 1 postcode sector in the MK1 district

MK1 1 is a sector of the MK1 district: every postcode that starts MK1 1. It has 79 postcodes in use, 17 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 MK1 1 sector, and which are new since 2020

Map of every postcode in the MK1 1 sector, by new since 2020 Of the 79 postcodes in the MK1 1 sector that ONS places, 5 are new since 2020 and 74 were in use before 2020. Places named: Bletchley Park & Fenny Stratford. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A5 MK1 1AS: before 2020MK1 1AX: before 2020MK1 1BA: before 2020MK1 1BE: before 2020MK1 1BG: before 2020MK1 1BH: before 2020MK1 1BJ: before 2020MK1 1BL: before 2020MK1 1BN: before 2020MK1 1BP: before 2020MK1 1BQ: before 2020MK1 1BU: before 2020MK1 1BW: before 2020MK1 1BX: before 2020MK1 1BY: before 2020MK1 1BZ: before 2020MK1 1DD: before 2020MK1 1DF: before 2020MK1 1DG: before 2020MK1 1DH: before 2020MK1 1DL: before 2020MK1 1DN: before 2020MK1 1DQ: before 2020MK1 1DR: before 2020MK1 1DS: before 2020MK1 1DX: before 2020MK1 1DY: before 2020MK1 1ED: before 2020MK1 1EQ: before 2020MK1 1ET: before 2020MK1 1EW: before 2020MK1 1EX: before 2020MK1 1EY: before 2020MK1 1FA: before 2020MK1 1HP: before 2020MK1 1HS: before 2020MK1 1HW: before 2020MK1 1HX: before 2020MK1 1JA: before 2020MK1 1JD: before 2020MK1 1JG: before 2020MK1 1JN: before 2020MK1 1JP: before 2020MK1 1JQ: before 2020MK1 1JW: before 2020MK1 1LG: before 2020MK1 1LH: before 2020MK1 1LJ: before 2020MK1 1LS: before 2020MK1 1LZ: before 2020MK1 1NE: before 2020MK1 1NG: before 2020MK1 1NL: before 2020MK1 1NW: before 2020MK1 1PA: before 2020MK1 1PT: before 2020MK1 1QB: before 2020MK1 1QT: before 2020MK1 1QU: before 2020MK1 1QY: before 2020MK1 1QZ: before 2020MK1 1RB: before 2020MK1 1RD: before 2020MK1 1RE: before 2020MK1 1RH: before 2020MK1 1SF: before 2020MK1 1ST: before 2020MK1 1SU: before 2020MK1 1SW: before 2020MK1 1UA: before 2020MK1 1XT: before 2020MK1 1FB: new since 2020MK1 1FD: new since 2020MK1 1FE: new since 2020MK1 1NN: new since 2020MK1 1NY: new since 2020 Bletchley Park & Fenny Stratford Map of every postcode in the MK1 1 sector, by new since 2020 Of the 79 postcodes in the MK1 1 sector that ONS places, 5 are new since 2020 and 74 were in use before 2020. Places named: Bletchley Park & Fenny Stratford. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Bletchley Park & Fenny Stratford
  • New since 2020: 5
  • In use before 2020: 74

Of the 79 postcodes in the MK1 1 sector that ONS places, 5 are new since 2020 and 74 were in use before 2020.

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. New since 2020 means it came into use in January 2020 or later. 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; when each came into use: the same directory; 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 5 newest postcodes

MK1 1FEAugust 2023MK1 1NYFebruary 2022MK1 1FDApril 2021MK1 1FBDecember 2020MK1 1NNOctober 2020

What do homes sell for in MK1 1?

HM Land Registry records 4 sales of homes in MK1 1 in the 12 months to August 2026: too few to give a typical price.

  • Detached 2 sales, too few to price
  • Semi-detached 1 sale, too few to price
  • Terraced 1 sale, too few to price

Standard sales of homes at market value at the postcodes that start MK1 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 MK1 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.

MK1 1ASMK1 1AXMK1 1BAMK1 1BEMK1 1BGMK1 1BHMK1 1BJMK1 1BLMK1 1BNMK1 1BPMK1 1BQMK1 1BUMK1 1BWMK1 1BXMK1 1BYMK1 1BZMK1 1DDMK1 1DFMK1 1DGMK1 1DHMK1 1DLMK1 1DNMK1 1DQMK1 1DRMK1 1DSMK1 1DXMK1 1DYMK1 1EDMK1 1EQMK1 1ETMK1 1EWMK1 1EXMK1 1EYMK1 1FAMK1 1FBMK1 1FDMK1 1FEMK1 1HPMK1 1HSMK1 1HWMK1 1HXMK1 1JAMK1 1JDMK1 1JGMK1 1JNMK1 1JPMK1 1JQMK1 1JWMK1 1LGMK1 1LHMK1 1LJMK1 1LSMK1 1LZMK1 1NEMK1 1NFMK1 1NGMK1 1NLMK1 1NNMK1 1NQMK1 1NWMK1 1NYMK1 1PAMK1 1PTMK1 1QBMK1 1QTMK1 1QUMK1 1QYMK1 1QZMK1 1RBMK1 1RDMK1 1REMK1 1RHMK1 1SFMK1 1STMK1 1SUMK1 1SWMK1 1UAMK1 1WUMK1 1XT

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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