# CB23

Postcode district covering Cambourne and Papworth Everard, in South Cambridgeshire.

CB23 is a postcode district covering Cambourne and Papworth Everard, in South Cambridgeshire. Median sale price £407,625 in 2025.

Postcode district. Code CB23. In: [Postcodes](https://openindex.co.uk/postcode) › [CB](https://openindex.co.uk/postcode/cb)

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 CB23 postcode. [How census figures are added up](https://openindex.co.uk/sources/population)

## Key figures

- **Median sale price: £407,625** (2025). The median price paid for a home in CB23 was £407,625 in 2025. 570th 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/cb23#f-house-sales-median-price
- **Population: 35,663** (2021). CB23 had 35,663 usual residents at the census (ONS Census 2021). 617th 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/cb23#f-population
- **People in radon Affected Area squares: 0%** (2022). About 0% of people in CB23 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/cb23#f-radon-affected-share
- **Gigabit broadband coverage: 89.9%** (January 2026). In CB23, 89.9% 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/cb23#f-gigabit-coverage

## On the map

- [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas?place=CB23) (Worked out by Open Index · 2022): About 0% of people in CB23 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=CB23) (Worked out by Open Index · 2025): 548 homes were sold in CB23 in 2025.
- [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime?place=CB23) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for CB23.
- [Population by postcode district](https://openindex.co.uk/map/population?place=CB23) (Census 2021, England and Wales): CB23 had 35,663 usual residents at the census.

## How CB23 compares

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

| Measure | CB23 | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £407,625 | 6th cheapest | 16 postcode districts, CB · 2025 |
| Population | 35,663 | 5th most populated | 16 postcode districts, CB · 2021 |
| People in radon Affected Area squares | 0% | joint fewest people in radon Affected Areas | 16 postcode districts, CB · 2022 |
| Gigabit broadband coverage | 89.9% | 8th highest | 16 postcode districts, CB · Jan 2026 |

## Is CB23 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in CB23 at a rate of 52.3 per 1,000 people.
That compares with 75.3 per 1,000 people across the CB postcode area.
In August 2026 alone, 165 cases of crime and anti-social behaviour were recorded in CB23.
In the 12 months to August 2026, the most common types were violence and sexual offences (717), anti-social behaviour (371) and other crime (333).
A year earlier, the recorded crime rate in CB23 was 52.3 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 CB23, neighbourhood by neighbourhood

- Deprivation is ranked by neighbourhood, so CB23 has no single figure. Of its 21 neighbourhoods with a rank:
- Decile 5: 1 neighbourhood
- Decile 6: 1 neighbourhood
- Decile 8: 8 neighbourhoods
- Decile 9: 9 neighbourhoods
- Decile 10 (England’s least deprived 10%): 2 neighbourhoods

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

## Neighbourhoods in CB23

| Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
| --- | --- | --- | --- | --- |
| [South Cambridgeshire 010A](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01018231) | 2,864 | 37.7 per 1,000 | 9 | 95.9% |
| [South Cambridgeshire 010B](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01018232) | 2,254 | 37.3 per 1,000 | 9 | 99.0% |
| [South Cambridgeshire 010C](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01018251) | 1,136 | 40.6 per 1,000 | 10 | 63.6% |
| [South Cambridgeshire 010D](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01018252) | 1,522 | 57.0 per 1,000 | 9 | 84.1% |
| [South Cambridgeshire 010E](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01018255) | 1,113 | 44.2 per 1,000 | 8 | 88.4% |
| [South Cambridgeshire 014D](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01018256) | 2,560 | 44.5 per 1,000 | 8 | 97.9% |
| [South Cambridgeshire 020A](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01033113) | 1,263 | 104.8 per 1,000 | 5 | 81.5% |
| [South Cambridgeshire 020B](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01033114) | 1,409 | 77.9 per 1,000 | 8 | 70.4% |
| [South Cambridgeshire 020C](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01033115) | 1,420 | 32.4 per 1,000 | 9 | 98.8% |
| [South Cambridgeshire 020D](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01033117) | 1,320 | 69.2 per 1,000 | 8 | 98.4% |
| [South Cambridgeshire 020F](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01035559) | 2,021 | 20.1 per 1,000 | 9 | 96.8% |
| [South Cambridgeshire 020G](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01035560) | 2,455 | 61.2 per 1,000 | 8 | 94.8% |
| [South Cambridgeshire 021A](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01018276) | 1,514 | 50.6 per 1,000 | 6 | 89.4% |
| [South Cambridgeshire 021B](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01018277) | 1,799 | 35.0 per 1,000 | 8 | 72.8% |
| [South Cambridgeshire 021C](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01018278) | 2,586 | 54.9 per 1,000 | 9 | 89.7% |
| [South Cambridgeshire 021D](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01033116) | 2,831 | 36.0 per 1,000 | 9 | 97.9% |
| [South Cambridgeshire 021E](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01033118) | 1,504 | 45.0 per 1,000 | 8 | 87.6% |
| [South Cambridgeshire 022A](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01018221) | 1,621 | 18.8 per 1,000 | 9 | 97.8% |
| [South Cambridgeshire 022B](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01018222) | 1,407 | 22.6 per 1,000 | 10 | 77.9% |
| [South Cambridgeshire 022C](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01018223) | 1,948 | 155.6 per 1,000 | 8 | 76.0% |
| [South Cambridgeshire 022F](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01018224) | 1,475 | 81.2 per 1,000 | 9 | 98.0% |

## Your MP

- [St Neots and Mid Cambridgeshire](https://openindex.co.uk/constituency/st-neots-and-mid-cambridgeshire): Ian Sollom (Liberal Democrat), MP since July 2024. 73% of the people here.
- [South Cambridgeshire](https://openindex.co.uk/constituency/south-cambridgeshire): Pippa Heylings (Liberal Democrat), MP since July 2024. 27% of the people here.
- [Cambridge](https://openindex.co.uk/constituency/cambridge): Daniel Zeichner (Labour), MP since July 2024. 0.2% 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 CB23

[Bar Hill, Girton & Grantchester](https://openindex.co.uk/south-cambridgeshire/bar-hill-girton-and-grantchester), [Cambourne](https://openindex.co.uk/south-cambridgeshire/cambourne), [Hardwick & Highfields](https://openindex.co.uk/south-cambridgeshire/hardwick-and-highfields), [Papworth, Caxton & Fen Drayton](https://openindex.co.uk/south-cambridgeshire/papworth-caxton-and-fen-drayton)

## Postcode sectors in CB23

[CB23 1 (75 postcodes)](https://openindex.co.uk/postcode/cb23-1), [CB23 2 (73 postcodes)](https://openindex.co.uk/postcode/cb23-2), [CB23 3 (112 postcodes)](https://openindex.co.uk/postcode/cb23-3), [CB23 4 (62 postcodes)](https://openindex.co.uk/postcode/cb23-4), [CB23 5 (65 postcodes)](https://openindex.co.uk/postcode/cb23-5), [CB23 6 (189 postcodes)](https://openindex.co.uk/postcode/cb23-6), [CB23 7 (199 postcodes)](https://openindex.co.uk/postcode/cb23-7), [CB23 8 (108 postcodes)](https://openindex.co.uk/postcode/cb23-8)

## Council

[South Cambridgeshire](https://openindex.co.uk/south-cambridgeshire)

## Towns in CB23

[Cambourne](https://openindex.co.uk/town/cambourne)

## Postcode districts next to CB23

[CB1](https://openindex.co.uk/postcode/cb1), [CB2](https://openindex.co.uk/postcode/cb2), [CB3](https://openindex.co.uk/postcode/cb3), [CB22](https://openindex.co.uk/postcode/cb22), [CB24](https://openindex.co.uk/postcode/cb24), [PE19](https://openindex.co.uk/postcode/pe19), [PE28](https://openindex.co.uk/postcode/pe28), [SG8](https://openindex.co.uk/postcode/sg8), [SG19](https://openindex.co.uk/postcode/sg19)

## More in the CB postcode area

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

## CB23 in brief

CB23 is a postcode district covering Cambourne and Papworth Everard, in South Cambridgeshire.
About 38,305 people lived in CB23 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £407,625 in 2025 across 548 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 52.3 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in CB23 was £407,625 in 2025.
CB23 had 35,663 usual residents at the census.
About 0% of people in CB23 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In CB23, 89.9% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Postcode district
- Code: CB23
- Postcode area: [CB](https://openindex.co.uk/postcode/cb)
- Constituency: [St Neots and Mid Cambridgeshire †](https://openindex.co.uk/constituency/st-neots-and-mid-cambridgeshire)
- Council: [South Cambridgeshire †](https://openindex.co.uk/south-cambridgeshire)
- Area: 163 km²
- People, mid-2024: 38,305*
- Neighbourhoods: 21
- Output areas: 110

* 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

[CB3](https://openindex.co.uk/postcode/cb3), [SG8](https://openindex.co.uk/postcode/sg8), [CB24](https://openindex.co.uk/postcode/cb24), [CB22](https://openindex.co.uk/postcode/cb22), [PE28](https://openindex.co.uk/postcode/pe28), [SG19](https://openindex.co.uk/postcode/sg19)

## Latest updates for CB23

- 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/CB23

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/cb23, or to one figure with its anchor, https://openindex.co.uk/postcode/cb23#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 2026.10.9. The HTML page: https://openindex.co.uk/postcode/cb23