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MK18 4LB

Grendon Underwood & The Claydons · Buckinghamshire · England

Updated September 2026

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Location overview

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Post town
Buckingham
Ward
Grendon Underwood & The Claydons
Local authority
Buckinghamshire
Constituency
Buckingham and Bletchley
Postcode district
MK18
Postcode sector
MK18 4

Nearby postcodes

Nearby postcode distances
Postcode Distance
MK18 4LD 395 m
MK18 4LA 406 m
MK18 4DL 636 m
MK18 4BB 707 m
MK18 4LE 902 m
Complete postcode fields and official codes
Postcode
MK18 4LB
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
MK
Postcode district
MK18
Postcode sector
MK18 4
Latitude
51.962822
Longitude
-1.069441
British National Grid easting
464,033
British National Grid northing
229,779

Statistical and administrative geographies

Country
England · E92000001
Region
South East · E12000008
Local authority district
Buckinghamshire · E06000060
Electoral ward
Grendon Underwood & The Claydons · E05015953
Parish or community
E04001470
Westminster constituency
Buckingham and Bletchley · E14001141
Output area
E00089399
Lower layer super output area
Buckinghamshire 004F · E01017718
Middle layer super output area
Buckinghamshire 004 · E02003655

Postcode source versions

Explore MK18

Use the wider postcode district to compare the same evidence across more locations.

Property

At this postcode

View all property records
9 recorded sales at this postcode
Address Date Price
Chetwode Priory, Chetwode, Buckingham, MK18 4LB 20 April 2022 £3,270,000
Priory Stables, Chetwode, Buckingham, MK18 4LB 28 May 2021 £914,200
The Hermitage, Chetwode, Buckingham, MK18 4LB 25 March 2020 £1,270,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
4
Primary
4
Secondary
0

  1. Finmere Church of England Primary School

    Academy converter

    3.0 km

  2. Fringford Church of England Primary School

    Voluntary controlled school

    3.8 km

  3. Twyford C of E School

    Voluntary controlled school

    4.0 km

Census 2021

Population and age profile

Postcode residents
16

8 female, 8 male

Postcode households
7
Residents per household
2.3
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 0.4% of the sector's usual residents on Census Day. The age profile describes the wider MK18 4 sector, not people in this individual postcode.

How to read these estimates
The standard postcode headcounts and the commissioned age table are separate ONS outputs. Small counts are disclosure-controlled, and totals can differ slightly between tables. Coverage is England and Wales only.

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+
88.9%
Ultrafast, 100 Mbit/s+
88.9%
Ultrafast, 300 Mbit/s+
88.9%
Gigabit-capable
88.9%
Unable to receive decent fixed or FWA broadband
0%
Next Generation Access
100%
Decent broadband available from fixed wireless
0%
Coverage is a modelled postcode-level snapshot, not a speed test or a guarantee for a named property. Check availability with providers before making a decision. Ofcom does not publish postcode-level full-fibre coverage in this release for commercial-confidentiality reasons.

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

Nearby transport

  • St Nicholas's Church

    BCT · Chetwode

    0.0 miles

  • St Nicholas's Church

    BCT · Chetwode

    0.0 miles

  • St James's Church

    BCT · Barton Hartshorn

    0.7 miles

  • St James's Church

    BCT · Barton Hartshorn

    0.7 miles

  • The Square

    BCT · Preston Bissett

    1.1 miles

Relative deprivation

English Indices of Deprivation 2025 for Buckinghamshire 004F, 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

8 of 10

Overall England rank

23,963 of 33,755

Income
9 of 10
Employment
9 of 10
Education and skills
8 of 10
Health and disability
10 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

A factual reading of the data in this report's scope. It is not a location score or a recommendation.

Property market

Recorded sales

The five-year median is £3,270,000 from 1 recorded sale in MK18 4LB. 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

Published establishments

4 open schools are in scope, including 4 primary and 0 secondary schools. Finmere Church of England Primary School is the nearest published school at 1.9 miles.

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