MK18 4BX

Grendon Underwood & The Claydons · Buckinghamshire · England

Updated September 2026

Compare this postcode

Location overview

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Post town
Buckingham
Local authority
Buckinghamshire
Postcode district
MK18
Postcode sector
MK18 4

Nearby postcodes

Nearby postcode distances
Postcode Distance
MK18 4FJ 220 m
MK18 4DD 552 m
MK18 4DE 592 m
MK18 4BZ 1.3 km
MK18 4DA 1.3 km
Complete postcode fields and official codes
Postcode
MK18 4BX
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
MK
Postcode district
MK18
Postcode sector
MK18 4
Latitude
51.965087
Longitude
-1.017315
British National Grid easting
467,611
British National Grid northing
230,078

Statistical and administrative geographies

Country
England · E92000001
Region
South East · E12000008
Local authority district
Buckinghamshire · E06000060
Parish or community
E04001493
Westminster constituency
Buckingham and Bletchley · E14001141
Output area
E00089296
Lower layer super output area
Buckinghamshire 004B · E01017694
Middle layer super output area
Buckinghamshire 004 · E02003655

Postcode source versions

Explore MK18

20 recorded sales at this postcode
Address Date Price
Plough Farm House, Hillesden, Buckingham, MK18 4BX 1 May 2025 £885,000
Kapellan, Hillesden, Buckingham, MK18 4BX 6 October 2023 £525,000
College Farm, College Farmhouse, Hillesden, Buckingham, MK18 4BX 14 September 2023 £905,213

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
11
Primary
8
Secondary
2
  1. Roundwood Primary School

    Community school

    1.8 km
  2. Steeple Claydon School and Pre-School

    Community school

    3.8 km
  3. Twyford C of E School

    Voluntary controlled school

    3.8 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
4
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Other crime 1
  • Other theft 1
  • Public order 1
  • Violence and sexual offences 1

Census 2021

Population and age profile

Postcode residents
76

40 female, 36 male

Postcode households
29
Residents per household
2.6
MK18 4 residents
4,055

Age bands in MK18 4

Wider postcode sector
Age 0 to 14
15.9%

625 residents

Age 15 to 24
10.3%

404 residents

Age 25 to 44
19.2%

754 residents

Age 45 to 64
31.7%

1,244 residents

Age 65 and over
22.8%

893 residents

This postcode contained 1.9% of the sector's usual residents on Census Day. The age profile describes the wider MK18 4 sector, not people in this individual postcode.

Small counts are adjusted for privacy, so totals can differ slightly between Census tables.

Census Day: 21 March 2021. Sources: ONS/Nomis P001-P004 and ONS CT21_0228. Age table version 2024-04-08.

Fixed broadband coverage

Ofcom's predicted availability across all residential and commercial premises in this postcode in January 2026.

Superfast, 30 Mbit/s+
96.4%
Ultrafast, 100 Mbit/s+
96.4%
Ultrafast, 300 Mbit/s+
96.4%
Gigabit-capable
96.4%
Unable to receive decent fixed or FWA broadband
0%
Next Generation Access
100%
Decent broadband available from fixed wireless
0%

Predicted coverage, not measured speeds. Check availability for your address with a provider. Postcode-level full-fibre figures are not published in this release.

Source: Ofcom Connected Nations Spring 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.

GP practices

1

within 5 km straight-line

  • THE SWAN PRACTICE

    MASONIC HOUSE, 26 HIGH STREET, BUCKINGHAM, MK18 1NU

    ODS code K82007

    4.6 km

Nearby transport

  • All Saints' Church

    BCT · Hillesden

    1.0 miles
  • Post Office

    BCT · Gawcott

    1.1 miles
  • Post Office

    BCT · Gawcott

    1.1 miles
  • The Square

    BCT · Preston Bissett

    1.2 miles
  • The Square

    BCT · Preston Bissett

    1.2 miles

Relative deprivation

English Indices of Deprivation 2025 for Buckinghamshire 004B, the published LSOA linked to this postcode. Decile 1 contains the most deprived 10% of English LSOAs and decile 10 the least deprived 10%.

Overall IMD decile

7 of 10

Overall England rank

22,186 of 33,755

Income
8 of 10
Employment
8 of 10
Education and skills
8 of 10
Health and disability
9 of 10
Crime
10 of 10
Housing and services
1 of 10
Living environment
4 of 10

These are relative area statistics, not measures of an individual household, affluence or absolute change. They cannot be compared with indices for other UK nations. Source: English Indices of Deprivation 2025, version 2025-v2.

Flood risk

Environment Agency long-term indicators for the area around addresses in this postcode. They are not an assessment of any individual property and do not show current or forecast flooding.

High risk addresses
0
Medium risk addresses
0
Low risk addresses
0
Groundwater flood alert area
Unlikely

Source: Environment Agency flood-risk postcode search tool data, version 2026-06-18. Check the long-term risk for an individual area. © Environment Agency copyright and/or database right 2025. All rights reserved.

Evidence in context

Property market

The five-year median is £745,000 from 5 recorded sales in MK18 4BX. This is a recorded-sale statistic, not a current valuation.

The latest UK House Price Index average for Buckinghamshire is £490,508 in June 2026, up 4.3% year on year.

Schools

11 open schools are in scope, including 8 primary and 2 secondary schools. Roundwood Primary School is the nearest published school at 1.1 miles.

Counts describe active establishment records. They do not assess admissions, catchments or quality.

Recorded crime

4 published events cover 12 months, averaging 0.333 events per published month. The largest recorded category is Other crime with 1 events.

The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.