# MK18

Postcode district covering Winslow and Buckingham, in Buckinghamshire.

MK18 is a postcode district covering Winslow and Buckingham, in Buckinghamshire. Median sale price £393,500 in 2025. Recorded crime 46.8 per 1,000 people.

Postcode district. Code MK18. In: [Postcodes](https://openindex.co.uk/postcode) › [MK](https://openindex.co.uk/postcode/mk)

Approximate outline worked out by Open Index from the ONS Postcode Directory: each census output area belongs to the district that holds most of its postcodes. People, homes, recorded crime and broadband add up those output areas. House sales count every sale with an MK18 postcode. [How census figures are added up](https://openindex.co.uk/sources/population)

## Key figures

- **Median sale price: £393,500** (2025). The median price paid for a home in MK18 was £393,500 in 2025. 624th most expensive of 2,235. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026. https://openindex.co.uk/postcode/mk18#f-house-sales-median-price
- **Population: 34,367** (2021). MK18 had 34,367 usual residents at the census (ONS Census 2021). 685th most populated of 2,756. Source: Census 2021, England and Wales and Scotland's Census 2022 and Census 2021, Northern Ireland, 2021. Published 21 July 2026. https://openindex.co.uk/postcode/mk18#f-population
- **People in radon Affected Area squares: 60%** (2022). About 60% of people in MK18 live in a 1 km square that the radon atlas marks as a radon Affected Area. UK 44%. Source: Worked out by Open Index from the UKHSA and BGS radon atlas and census output areas. Published 1 December 2022. https://openindex.co.uk/postcode/mk18#f-radon-affected-share
- **Gigabit broadband coverage: 90.7%** (January 2026). In MK18, 90.7% of homes and businesses could get gigabit-capable broadband in January 2026 (Ofcom). UK 87.8%. Source: Connected Nations (Ofcom), January 2026. Published 13 May 2026. https://openindex.co.uk/postcode/mk18#f-gigabit-coverage

## On the map

- [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas#place=MK18) (Worked out by Open Index · 2022): About 60% of people in MK18 live in a 1 km square that the radon atlas marks as a radon Affected Area.
- [Sales per year by postcode district](https://openindex.co.uk/map/house-sales-per-year#place=MK18) (Worked out by Open Index · 2025): 573 homes were sold in MK18 in 2025.
- [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime#place=MK18) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for MK18.
- [Population by postcode district](https://openindex.co.uk/map/population#place=MK18) (Census 2021, England and Wales): MK18 had 34,367 usual residents at the census.

## How MK18 compares

Each postcode district against every other postcode district the measure covers.

| Measure | MK18 | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £393,500 | 8th most expensive | 25 postcode districts, MK · 2025 |
| Population | 34,367 | 6th most populated | 27 postcode districts, MK · 2021 |
| People in radon Affected Area squares | 60% | 10th most people in radon Affected Areas | 27 postcode districts, MK · 2022 |
| Gigabit broadband coverage | 90.7% | 9th lowest | 27 postcode districts, MK · Jan 2026 |

## Is MK18 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in MK18 at a rate of 46.8 per 1,000 people.
That compares with 87.5 per 1,000 people across the MK postcode area.
In August 2026 alone, 169 cases of crime and anti-social behaviour were recorded in MK18.
In the 12 months to August 2026, the most common types were violence and sexual offences (739), other crime (360) and anti-social behaviour (198).
A year earlier, the recorded crime rate in MK18 was 49.3 per 1,000 people.
Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.
Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.

## Deprivation in MK18, neighbourhood by neighbourhood

- Deprivation is ranked by neighbourhood, so MK18 has no single figure. Of its 22 neighbourhoods with a rank:
- Decile 5: 4 neighbourhoods
- Decile 6: 3 neighbourhoods
- Decile 7: 6 neighbourhoods
- Decile 8: 4 neighbourhoods
- Decile 9: 1 neighbourhood
- Decile 10 (England’s least deprived 10%): 4 neighbourhoods

Source: English Indices of Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in England.

## Neighbourhoods in MK18

| Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
| --- | --- | --- | --- | --- |
| [Buckinghamshire 001A](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017648) | 1,644 | 13.2 per 1,000 | 10 | 99.0% |
| [Buckinghamshire 001B](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017649) | 2,504 | 68.9 per 1,000 | 7 | 92.9% |
| [Buckinghamshire 001C](https://openindex.co.uk/buckinghamshire/neighbourhood/e01033951) | 1,599 | 23.8 per 1,000 | 5 | 69.3% |
| [Buckinghamshire 001D](https://openindex.co.uk/buckinghamshire/neighbourhood/e01033952) | 1,415 | 18.7 per 1,000 | 6 | 78.0% |
| [Buckinghamshire 001E](https://openindex.co.uk/buckinghamshire/neighbourhood/e01033953) | 1,681 | 65.2 per 1,000 | 8 | 96.8% |
| [Buckinghamshire 001F](https://openindex.co.uk/buckinghamshire/neighbourhood/e01033954) | 1,713 | 71.6 per 1,000 | 10 | 99.3% |
| [Buckinghamshire 002A](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017644) | 1,463 | 36.7 per 1,000 | 9 | 100.0% |
| [Buckinghamshire 002B](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017645) | 1,432 | 142.6 per 1,000 | 5 | 73.2% |
| [Buckinghamshire 002C](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017646) | 2,320 | 49.9 per 1,000 | 6 | 93.6% |
| [Buckinghamshire 002D](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017647) | 1,535 | 8.5 per 1,000 | 10 | 100.0% |
| [Buckinghamshire 004B](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017694) | 2,469 | 29.6 per 1,000 | 7 | 96.2% |
| [Buckinghamshire 004C](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017713) | 1,423 | 36.5 per 1,000 | 5 | 99.7% |
| [Buckinghamshire 004D](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017714) | 1,668 | 33.2 per 1,000 | 8 | 97.5% |
| [Buckinghamshire 004E](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017717) | 1,775 | 53.3 per 1,000 | 5 | 49.2% |
| [Buckinghamshire 004F](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017718) | 1,905 | 42.1 per 1,000 | 8 | 88.1% |
| [Buckinghamshire 005A](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017735) | 1,403 | 17.7 per 1,000 | 8 | 90.6% |
| [Buckinghamshire 005B](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017736) | 1,522 | 78.3 per 1,000 | 6 | 96.6% |
| [Buckinghamshire 005C](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017737) | 1,292 | 23.2 per 1,000 | 10 | 100.0% |
| [Buckinghamshire 005D](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017738) | 2,423 | 72.6 per 1,000 | 7 | 92.4% |
| [Buckinghamshire 006C](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017715) | 1,206 | 36.2 per 1,000 | 7 | 60.4% |
| [Buckinghamshire 009B](https://openindex.co.uk/buckinghamshire/neighbourhood/e01017704) | 1,302 | 20.9 per 1,000 | 7 | 64.0% |
| [Cherwell 011D](https://openindex.co.uk/cherwell/neighbourhood/e01028483) | 1,299 | 20.5 per 1,000 | 7 | 69.2% |

## Your MP

- [Buckingham and Bletchley](https://openindex.co.uk/constituency/buckingham-and-bletchley): Callum Anderson (Labour), MP since July 2024. 85% of the people here.
- [Mid Buckinghamshire](https://openindex.co.uk/constituency/mid-buckinghamshire): Greg Smith (Conservative), MP since July 2024. 13% of the people here.
- [Bicester and Woodstock](https://openindex.co.uk/constituency/bicester-and-woodstock): Calum Miller (Liberal Democrat), MP since July 2024. 1.7% of the people here.

As of 18 October 2026. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

## Middle areas in MK18

[Buckingham North](https://openindex.co.uk/buckinghamshire/buckingham-north), [Buckingham South, Maids Moreton & Akeley](https://openindex.co.uk/buckinghamshire/buckingham-south-maids-moreton-and-akeley), [Marsh Gibbon, Steeple Claydon & Tingewick](https://openindex.co.uk/buckinghamshire/marsh-gibbon-steeple-claydon-and-tingewick), [Winslow & Padbury](https://openindex.co.uk/buckinghamshire/winslow-and-padbury)

## Postcode sectors in MK18

[MK18 1 (366 postcodes)](https://openindex.co.uk/postcode/mk18-1), [MK18 2 (230 postcodes)](https://openindex.co.uk/postcode/mk18-2), [MK18 3 (238 postcodes)](https://openindex.co.uk/postcode/mk18-3), [MK18 4 (193 postcodes)](https://openindex.co.uk/postcode/mk18-4), [MK18 5 (122 postcodes)](https://openindex.co.uk/postcode/mk18-5), [MK18 6 (7 postcodes)](https://openindex.co.uk/postcode/mk18-6), [MK18 7 (102 postcodes)](https://openindex.co.uk/postcode/mk18-7), [MK18 8 (3 postcodes)](https://openindex.co.uk/postcode/mk18-8), [MK18 9 (5 postcodes)](https://openindex.co.uk/postcode/mk18-9)

## Council

[Buckinghamshire](https://openindex.co.uk/buckinghamshire)

## Towns in MK18

[Buckingham](https://openindex.co.uk/town/buckingham)

## Postcode districts next to MK18

[HP18](https://openindex.co.uk/postcode/hp18), [HP22](https://openindex.co.uk/postcode/hp22), [LU7](https://openindex.co.uk/postcode/lu7), [MK17](https://openindex.co.uk/postcode/mk17), [MK19](https://openindex.co.uk/postcode/mk19), [NN12](https://openindex.co.uk/postcode/nn12), [NN13](https://openindex.co.uk/postcode/nn13), [OX27](https://openindex.co.uk/postcode/ox27)

## More in the MK postcode area

[All MK postcode districts](https://openindex.co.uk/postcode/mk), [Every UK postcode area](https://openindex.co.uk/postcode)

## MK18 in brief

MK18 is a postcode district covering Winslow and Buckingham, in Buckinghamshire.
About 35,863 people lived in MK18 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £393,500 in 2025 across 573 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 46.8 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in MK18 was £393,500 in 2025.
MK18 had 34,367 usual residents at the census.
About 60% of people in MK18 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In MK18, 90.7% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Postcode district
- Code: MK18
- Postcode area: [MK](https://openindex.co.uk/postcode/mk)
- Constituency: [Buckingham and Bletchley †](https://openindex.co.uk/constituency/buckingham-and-bletchley)
- Council: [Buckinghamshire †](https://openindex.co.uk/buckinghamshire)
- Area: 234 km²
- People, mid-2024: 35,863*
- Neighbourhoods: 22
- Output areas: 108

* People: worked out by Open Index from neighbourhood estimates, shared out by where people lived at the census (by area in Northern Ireland). This area's edges do not follow neighbourhood edges, so the figure is close but not exact.
† Best fit: the constituency, council, region and nation this postcode district mostly lies in. Its edges do not follow theirs.

## Next door

[MK17](https://openindex.co.uk/postcode/mk17), [NN13](https://openindex.co.uk/postcode/nn13), [HP22](https://openindex.co.uk/postcode/hp22), [OX27](https://openindex.co.uk/postcode/ox27), [MK19](https://openindex.co.uk/postcode/mk19), [NN12](https://openindex.co.uk/postcode/nn12)

## Latest updates for MK18

- August 2026 house prices published: HM Land Registry and partners · Oct 2026.
- September 2026 rent published: ONS private rents · Oct 2026.
- Dental practices updated: NHS England · Oct 2026.
- Schools updated: Ofsted · Oct 2026.

The same figures as JSON: https://openindex.co.uk/v1/places/MK18

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/mk18, or to one figure with its anchor, https://openindex.co.uk/postcode/mk18#f-house-sales-median-price.

Open Index's own text and the figures it works out are licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source data keeps its publishers' licences, named with each figure. Give each figure's period and source with it.

Snapshot 2026.10.11. The HTML page: https://openindex.co.uk/postcode/mk18