MK9 4 postcode sector in the MK9 district

MK9 4 is a sector of the MK9 district: every postcode that starts MK9 4. It has 35 postcodes in use.

Not sure what a sector is? UK postcode format explained.

Every postcode in the MK9 4 sector, by flood risk

Map of every postcode in the MK9 4 sector, by flood risk Of the 35 postcodes in the MK9 4 sector that ONS places, 35 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Campbell Park & Willen. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A509 MK9 4AB: not on the flood risk listMK9 4AD: not on the flood risk listMK9 4AF: not on the flood risk listMK9 4AG: not on the flood risk listMK9 4AH: not on the flood risk listMK9 4AJ: not on the flood risk listMK9 4AN: not on the flood risk listMK9 4AP: not on the flood risk listMK9 4AQ: not on the flood risk listMK9 4AS: not on the flood risk listMK9 4AT: not on the flood risk listMK9 4AU: not on the flood risk listMK9 4AW: not on the flood risk listMK9 4BA: not on the flood risk listMK9 4BB: not on the flood risk listMK9 4BD: not on the flood risk listMK9 4BE: not on the flood risk listMK9 4BG: not on the flood risk listMK9 4BH: not on the flood risk listMK9 4BJ: not on the flood risk listMK9 4BL: not on the flood risk listMK9 4BN: not on the flood risk listMK9 4BP: not on the flood risk listMK9 4BQ: not on the flood risk listMK9 4BR: not on the flood risk listMK9 4BS: not on the flood risk listMK9 4BT: not on the flood risk listMK9 4BU: not on the flood risk listMK9 4BW: not on the flood risk listMK9 4BX: not on the flood risk listMK9 4BY: not on the flood risk listMK9 4BZ: not on the flood risk listMK9 4DB: not on the flood risk listMK9 4DD: not on the flood risk list Campbell Park & Willen Map of every postcode in the MK9 4 sector, by flood risk Of the 35 postcodes in the MK9 4 sector that ONS places, 35 are not on the Environment Agency's at-risk list. One postcode lies beyond the edge and is listed under the map. Places named: Campbell Park & Willen. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Campbell Park & Willen
  • 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: 35

Of the 35 postcodes in the MK9 4 sector that ONS places, 35 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. 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; 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

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.

MK9 4AE

What do homes sell for in MK9 4?

Homes in MK9 4 sold for a typical £207,500 in the 12 months to August 2026, across 18 sales, down 27.8% on the 12 months before, HM Land Registry's figures show.

£207,500 typical price, the 12 months to August 2026
£287,500 12 months to August 2025
▼ down 27.8% on the 12 months before
  • Terraced 1 sale, too few to price
  • Flat or maisonette £205,000 17 sales

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

MK9 4ABMK9 4ADMK9 4AEMK9 4AFMK9 4AGMK9 4AHMK9 4AJMK9 4ANMK9 4APMK9 4AQMK9 4ASMK9 4ATMK9 4AUMK9 4AWMK9 4BAMK9 4BBMK9 4BDMK9 4BEMK9 4BGMK9 4BHMK9 4BJMK9 4BLMK9 4BNMK9 4BPMK9 4BQMK9 4BRMK9 4BSMK9 4BTMK9 4BUMK9 4BWMK9 4BXMK9 4BYMK9 4BZMK9 4DBMK9 4DD

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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