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, by flood risk

Map of every postcode in the MK9 3 sector, by flood risk Of the 94 postcodes in the MK9 3 sector that ONS places, 94 are not on the Environment Agency's at-risk list. Places named: Milton Keynes. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A5A421 MK9 3AB: not on the flood risk listMK9 3AD: not on the flood risk listMK9 3AE: not on the flood risk listMK9 3AF: not on the flood risk listMK9 3AG: not on the flood risk listMK9 3AH: not on the flood risk listMK9 3AJ: not on the flood risk listMK9 3AN: not on the flood risk listMK9 3AP: not on the flood risk listMK9 3AQ: not on the flood risk listMK9 3AR: not on the flood risk listMK9 3AT: not on the flood risk listMK9 3AW: not on the flood risk listMK9 3AX: not on the flood risk listMK9 3AZ: not on the flood risk listMK9 3BA: not on the flood risk listMK9 3BB: not on the flood risk listMK9 3BD: not on the flood risk listMK9 3BG: not on the flood risk listMK9 3BH: not on the flood risk listMK9 3BL: not on the flood risk listMK9 3BN: not on the flood risk listMK9 3BP: not on the flood risk listMK9 3BQ: not on the flood risk listMK9 3BS: not on the flood risk listMK9 3BT: not on the flood risk listMK9 3BU: not on the flood risk listMK9 3BZ: not on the flood risk listMK9 3DA: not on the flood risk listMK9 3DB: not on the flood risk listMK9 3DD: not on the flood risk listMK9 3DE: not on the flood risk listMK9 3DF: not on the flood risk listMK9 3DQ: not on the flood risk listMK9 3DX: not on the flood risk listMK9 3DZ: not on the flood risk listMK9 3EH: not on the flood risk listMK9 3EJ: not on the flood risk listMK9 3EL: not on the flood risk listMK9 3EP: not on the flood risk listMK9 3ES: not on the flood risk listMK9 3EY: not on the flood risk listMK9 3FH: not on the flood risk listMK9 3FJ: not on the flood risk listMK9 3FP: not on the flood risk listMK9 3FQ: not on the flood risk listMK9 3FS: not on the flood risk listMK9 3FT: not on the flood risk listMK9 3FW: not on the flood risk listMK9 3FX: not on the flood risk listMK9 3FY: not on the flood risk listMK9 3FZ: not on the flood risk listMK9 3GA: not on the flood risk listMK9 3GB: not on the flood risk listMK9 3GD: not on the flood risk listMK9 3GN: not on the flood risk listMK9 3HL: not on the flood risk listMK9 3HP: not on the flood risk listMK9 3HR: not on the flood risk listMK9 3HW: not on the flood risk listMK9 3JT: not on the flood risk listMK9 3JZ: not on the flood risk listMK9 3LQ: not on the flood risk listMK9 3LZ: not on the flood risk listMK9 3NP: not on the flood risk listMK9 3NR: not on the flood risk listMK9 3NS: not on the flood risk listMK9 3NX: not on the flood risk listMK9 3NZ: not on the flood risk listMK9 3PD: not on the flood risk listMK9 3PE: not on the flood risk listMK9 3PL: not on the flood risk listMK9 3PT: not on the flood risk listMK9 3PU: not on the flood risk listMK9 3PW: not on the flood risk listMK9 3PX: not on the flood risk listMK9 3PY: not on the flood risk listMK9 3XA: not on the flood risk listMK9 3XL: not on the flood risk listMK9 3XS: not on the flood risk list Milton Keynes Map of every postcode in the MK9 3 sector, by flood risk Of the 94 postcodes in the MK9 3 sector that ONS places, 94 are not on the Environment Agency's at-risk list. Places named: Milton Keynes. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A5A421 Milton Keynes
  • A home or business at high risk: 0
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 0
  • Not on the at-risk list: 94

Of the 94 postcodes in the MK9 3 sector that ONS places, 94 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

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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