MK9 3 postcode sector in the MK9 district

MK9 3 is a sector of the MK9 district: every postcode that starts MK9 3. It has 94 postcodes in use, 12 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 MK9 3 sector, and which are new since 2020

Map of every postcode in the MK9 3 sector, by new since 2020 Of the 94 postcodes in the MK9 3 sector that ONS places, 9 are new since 2020 and 85 were in use before 2020. One group of new postcodes is outlined: 5 new postcodes since 2020. Places named: Milton Keynes. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A5A421 MK9 3AB: before 2020MK9 3AD: before 2020MK9 3AE: before 2020MK9 3AF: before 2020MK9 3AG: before 2020MK9 3AH: before 2020MK9 3AJ: before 2020MK9 3AN: before 2020MK9 3AP: before 2020MK9 3AQ: before 2020MK9 3AR: before 2020MK9 3AT: before 2020MK9 3AW: before 2020MK9 3AX: before 2020MK9 3AZ: before 2020MK9 3BA: before 2020MK9 3BB: before 2020MK9 3BD: before 2020MK9 3BG: before 2020MK9 3BH: before 2020MK9 3BL: before 2020MK9 3BN: before 2020MK9 3BP: before 2020MK9 3BQ: before 2020MK9 3BS: before 2020MK9 3BT: before 2020MK9 3BU: before 2020MK9 3BZ: before 2020MK9 3DA: before 2020MK9 3DB: before 2020MK9 3DD: before 2020MK9 3DE: before 2020MK9 3DF: before 2020MK9 3DQ: before 2020MK9 3DX: before 2020MK9 3DZ: before 2020MK9 3EH: before 2020MK9 3EJ: before 2020MK9 3EL: before 2020MK9 3EP: before 2020MK9 3ES: before 2020MK9 3FH: before 2020MK9 3FJ: before 2020MK9 3FS: before 2020MK9 3FT: before 2020MK9 3FX: before 2020MK9 3FY: before 2020MK9 3FZ: before 2020MK9 3GA: before 2020MK9 3GB: before 2020MK9 3GD: before 2020MK9 3GN: before 2020MK9 3HL: before 2020MK9 3HP: before 2020MK9 3HW: before 2020MK9 3JT: before 2020MK9 3LQ: before 2020MK9 3LZ: before 2020MK9 3NP: before 2020MK9 3NR: before 2020MK9 3NS: before 2020MK9 3NX: before 2020MK9 3NZ: before 2020MK9 3PD: before 2020MK9 3PE: before 2020MK9 3PL: before 2020MK9 3PT: before 2020MK9 3PU: before 2020MK9 3PW: before 2020MK9 3PX: before 2020MK9 3PY: before 2020MK9 3XA: before 2020MK9 3XL: before 2020MK9 3XS: before 2020MK9 3EY: new since 2020MK9 3FP: new since 2020MK9 3FQ: new since 2020MK9 3FW: new since 2020MK9 3HR: new since 2020MK9 3JZ: new since 2020 Milton Keynes 5 new postcodes since 2020, outlined: this goes to MK9 3FQ, the newest of them5 new postcodes since 2020 Map of every postcode in the MK9 3 sector, by new since 2020 Of the 94 postcodes in the MK9 3 sector that ONS places, 9 are new since 2020 and 85 were in use before 2020. One group of new postcodes is outlined: 5 new postcodes since 2020. Places named: Milton Keynes. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A5A421 Milton Keynes 5 new postcodes since 2020, outlined: this goes to MK9 3FQ, the newest of them5 new postcodes since 2020
  • New since 2020: 9
  • In use before 2020: 85
  • Outline: where 5 or more new postcodes since 2020 lie together

Of the 94 postcodes in the MK9 3 sector that ONS places, 9 are new since 2020 and 85 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. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and 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; 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

MK9 3HRMay 2026MK9 3JZMay 2026MK9 3FQJune 2024MK9 3FRJune 2024MK9 3FUJune 2024

Where the new postcodes lie together

  • 5 new postcodes since 2020, outlined on the map. MK9 3FQ, is the newest of them.

What do homes sell for in MK9 3?

HM Land Registry records 4 sales of homes in MK9 3 in the 12 months to August 2026: too few to give a typical price.

  • Flat or maisonette 4 sales, too few to price

Standard sales of homes at market value at the postcodes that start MK9 3. 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 MK9 3

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.

MK9 3ABMK9 3ADMK9 3AEMK9 3AFMK9 3AGMK9 3AHMK9 3AJMK9 3ANMK9 3APMK9 3AQMK9 3ARMK9 3ATMK9 3AUMK9 3AWMK9 3AXMK9 3AYMK9 3AZMK9 3BAMK9 3BBMK9 3BDMK9 3BEMK9 3BGMK9 3BHMK9 3BJMK9 3BLMK9 3BNMK9 3BPMK9 3BQMK9 3BSMK9 3BTMK9 3BUMK9 3BZMK9 3DAMK9 3DBMK9 3DDMK9 3DEMK9 3DFMK9 3DGMK9 3DQMK9 3DXMK9 3DZMK9 3EHMK9 3EJMK9 3ELMK9 3EPMK9 3ESMK9 3EYMK9 3FHMK9 3FJMK9 3FLMK9 3FPMK9 3FQMK9 3FRMK9 3FSMK9 3FTMK9 3FUMK9 3FWMK9 3FXMK9 3FYMK9 3FZMK9 3GAMK9 3GBMK9 3GDMK9 3GEMK9 3GNMK9 3HLMK9 3HPMK9 3HQMK9 3HRMK9 3HWMK9 3JTMK9 3JZMK9 3LQMK9 3LZMK9 3NPMK9 3NRMK9 3NSMK9 3NXMK9 3NZMK9 3PDMK9 3PEMK9 3PLMK9 3PTMK9 3PUMK9 3PWMK9 3PXMK9 3PYMK9 3QAMK9 3WBMK9 3WJMK9 3XAMK9 3XJMK9 3XLMK9 3XS

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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