MK18 5 postcode sector in the MK18 district

MK18 5 is a sector of the MK18 district: every postcode that starts MK18 5. It has 122 postcodes in use, 2 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 MK18 5 sector, and which are new since 2020

Map of every postcode in the MK18 5 sector, by new since 2020 Of the 122 postcodes in the MK18 5 sector that ONS places, 1 are new since 2020 and 121 were in use before 2020. Places named: Buckingham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. MK18 5AA: before 2020MK18 5AB: before 2020MK18 5AD: before 2020MK18 5AE: before 2020MK18 5AF: before 2020MK18 5AG: before 2020MK18 5AH: before 2020MK18 5AJ: before 2020MK18 5AL: before 2020MK18 5AN: before 2020MK18 5AP: before 2020MK18 5AQ: before 2020MK18 5AR: before 2020MK18 5AS: before 2020MK18 5AT: before 2020MK18 5AU: before 2020MK18 5AW: before 2020MK18 5AX: before 2020MK18 5AY: before 2020MK18 5AZ: before 2020MK18 5BB: before 2020MK18 5BD: before 2020MK18 5BE: before 2020MK18 5BF: before 2020MK18 5BG: before 2020MK18 5BH: before 2020MK18 5BJ: before 2020MK18 5BL: before 2020MK18 5BN: before 2020MK18 5BP: before 2020MK18 5BQ: before 2020MK18 5BS: before 2020MK18 5BW: before 2020MK18 5BZ: before 2020MK18 5DA: before 2020MK18 5DB: before 2020MK18 5DD: before 2020MK18 5DE: before 2020MK18 5DF: before 2020MK18 5DH: before 2020MK18 5DJ: before 2020MK18 5DN: before 2020MK18 5DP: before 2020MK18 5DQ: before 2020MK18 5DR: before 2020MK18 5DS: before 2020MK18 5DT: before 2020MK18 5DU: before 2020MK18 5DX: before 2020MK18 5DY: before 2020MK18 5DZ: before 2020MK18 5EA: before 2020MK18 5EB: before 2020MK18 5ED: before 2020MK18 5EE: before 2020MK18 5EF: before 2020MK18 5EG: before 2020MK18 5EH: before 2020MK18 5EQ: before 2020MK18 5EX: before 2020MK18 5EY: before 2020MK18 5EZ: before 2020MK18 5GZ: before 2020MK18 5HA: before 2020MK18 5HB: before 2020MK18 5HD: before 2020MK18 5HE: before 2020MK18 5HG: before 2020MK18 5HH: before 2020MK18 5HJ: before 2020MK18 5HL: before 2020MK18 5HP: before 2020MK18 5HQ: before 2020MK18 5HR: before 2020MK18 5HS: before 2020MK18 5HU: before 2020MK18 5HW: before 2020MK18 5HX: before 2020MK18 5HZ: before 2020MK18 5JE: before 2020MK18 5JG: before 2020MK18 5JH: before 2020MK18 5JJ: before 2020MK18 5JL: before 2020MK18 5JN: before 2020MK18 5JX: before 2020MK18 5JY: before 2020MK18 5JZ: before 2020MK18 5LA: before 2020MK18 5LB: before 2020MK18 5LD: before 2020MK18 5LE: before 2020MK18 5LF: before 2020MK18 5LG: before 2020MK18 5LH: before 2020MK18 5LJ: before 2020MK18 5LQ: before 2020MK18 5LT: before 2020MK18 5LU: before 2020MK18 5LX: before 2020MK18 5LY: before 2020MK18 5LZ: before 2020MK18 5NA: before 2020MK18 5NB: before 2020MK18 5ND: before 2020MK18 5NE: before 2020MK18 5NN: before 2020MK18 5NP: before 2020MK18 5NR: before 2020MK18 5NS: before 2020MK18 5NU: before 2020MK18 5NW: before 2020MK18 5NX: before 2020MK18 5NY: before 2020MK18 5NZ: before 2020MK18 5PA: before 2020MK18 5ZR: before 2020MK18 5BT: new since 2020 Buckingham Map of every postcode in the MK18 5 sector, by new since 2020 Of the 122 postcodes in the MK18 5 sector that ONS places, 1 are new since 2020 and 121 were in use before 2020. Places named: Buckingham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. Buckingham
  • New since 2020: 1
  • In use before 2020: 121

Of the 122 postcodes in the MK18 5 sector that ONS places, 1 are new since 2020 and 121 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 newest postcode

MK18 5BTOctober 2020

What do homes sell for in MK18 5?

Homes in MK18 5 sold for a typical £355,000 in the 12 months to August 2026, across 11 sales, down 54.3% on the 12 months before, HM Land Registry's figures show.

£355,000 typical price, the 12 months to August 2026
£777,250 12 months to August 2025
▼ down 54.3% on the 12 months before
  • Detached 3 sales, too few to price
  • Semi-detached 4 sales, too few to price
  • Terraced 4 sales, too few to price

Standard sales of homes at market value at the postcodes that start MK18 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 MK18 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.

MK18 5AAMK18 5ABMK18 5ADMK18 5AEMK18 5AFMK18 5AGMK18 5AHMK18 5AJMK18 5ALMK18 5ANMK18 5APMK18 5AQMK18 5ARMK18 5ASMK18 5ATMK18 5AUMK18 5AWMK18 5AXMK18 5AYMK18 5AZMK18 5BBMK18 5BDMK18 5BEMK18 5BFMK18 5BGMK18 5BHMK18 5BJMK18 5BLMK18 5BNMK18 5BPMK18 5BQMK18 5BSMK18 5BTMK18 5BWMK18 5BZMK18 5DAMK18 5DBMK18 5DDMK18 5DEMK18 5DFMK18 5DHMK18 5DJMK18 5DNMK18 5DPMK18 5DQMK18 5DRMK18 5DSMK18 5DTMK18 5DUMK18 5DXMK18 5DYMK18 5DZMK18 5EAMK18 5EBMK18 5EDMK18 5EEMK18 5EFMK18 5EGMK18 5EHMK18 5EQMK18 5EXMK18 5EYMK18 5EZMK18 5GZMK18 5HAMK18 5HBMK18 5HDMK18 5HEMK18 5HFMK18 5HGMK18 5HHMK18 5HJMK18 5HLMK18 5HNMK18 5HPMK18 5HQMK18 5HRMK18 5HSMK18 5HUMK18 5HWMK18 5HXMK18 5HZMK18 5JEMK18 5JFMK18 5JGMK18 5JHMK18 5JJMK18 5JLMK18 5JNMK18 5JPMK18 5JXMK18 5JYMK18 5JZMK18 5LAMK18 5LBMK18 5LDMK18 5LEMK18 5LFMK18 5LGMK18 5LHMK18 5LJMK18 5LQMK18 5LTMK18 5LUMK18 5LXMK18 5LYMK18 5LZMK18 5NAMK18 5NBMK18 5NDMK18 5NEMK18 5NNMK18 5NPMK18 5NRMK18 5NSMK18 5NUMK18 5NWMK18 5NXMK18 5NYMK18 5NZMK18 5PAMK18 5ZR

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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