# CB3

Postcode district covering Cambridge, Ridgeway Village and Newnham, in Cambridge and South Cambridgeshire.

CB3 is a postcode district covering Cambridge, Ridgeway Village and Newnham, in Cambridge and South Cambridgeshire. Median sale price £624,145 in 2025.

Postcode district. Code CB3. 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 CB3 postcode. [How census figures are added up](https://openindex.co.uk/sources/population)

## Key figures

- **Median sale price: £624,145** (2025). The median price paid for a home in CB3 was £624,145 in 2025. 133rd 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/cb3#f-house-sales-median-price
- **Population: 23,698** (2021). CB3 had 23,698 usual residents at the census (ONS Census 2021). 1,247th 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/cb3#f-population
- **People in radon Affected Area squares: 0%** (2022). About 0% of people in CB3 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/cb3#f-radon-affected-share
- **Gigabit broadband coverage: 91.5%** (January 2026). In CB3, 91.5% 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/cb3#f-gigabit-coverage

## On the map

- [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas?place=CB3) (Worked out by Open Index · 2022): About 0% of people in CB3 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=CB3) (Worked out by Open Index · 2025): 211 homes were sold in CB3 in 2025.
- [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime?place=CB3) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for CB3.
- [Population by postcode district](https://openindex.co.uk/map/population?place=CB3) (Census 2021, England and Wales): CB3 had 23,698 usual residents at the census.

## How CB3 compares

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

| Measure | CB3 | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £624,145 | most expensive | 16 postcode districts, CB · 2025 |
| Population | 23,698 | 6th least 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 | 91.5% | 6th highest | 16 postcode districts, CB · Jan 2026 |

## Is CB3 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in CB3 at a rate of 39.9 per 1,000 people.
That compares with 75.3 per 1,000 people across the CB postcode area.
In August 2026 alone, 90 cases of crime and anti-social behaviour were recorded in CB3.
In the 12 months to August 2026, the most common types were other crime (275), violence and sexual offences (248) and anti-social behaviour (177).
A year earlier, the recorded crime rate in CB3 was 44.0 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 CB3, neighbourhood by neighbourhood

- Deprivation is ranked by neighbourhood, so CB3 has no single figure. Of its 9 neighbourhoods with a rank:
- Decile 7: 1 neighbourhood
- Decile 9: 3 neighbourhoods
- Decile 10 (England’s least deprived 10%): 5 neighbourhoods

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

## Neighbourhoods in CB3

| Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
| --- | --- | --- | --- | --- |
| [Cambridge 005E](https://openindex.co.uk/cambridge/neighbourhood/e01035511) | 1,225 | 85.4 per 1,000 | 9 | 69.6% |
| [Cambridge 005F](https://openindex.co.uk/cambridge/neighbourhood/e01035512) | 1,032 | 48.3 per 1,000 | 10 | 97.7% |
| [Cambridge 005G](https://openindex.co.uk/cambridge/neighbourhood/e01035513) | 1,031 | 44.3 per 1,000 | 10 | 96.5% |
| [Cambridge 005H](https://openindex.co.uk/cambridge/neighbourhood/e01035514) | 8,227 | 30.8 per 1,000 | 10 | 94.5% |
| [Cambridge 007E](https://openindex.co.uk/cambridge/neighbourhood/e01017985) | 1,887 | 86.8 per 1,000 | 9 | 88.5% |
| [Cambridge 007I](https://openindex.co.uk/cambridge/neighbourhood/e01035516) | 5,735 | 30.4 per 1,000 | 10 | 90.4% |
| [South Cambridgeshire 022D](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01035561) | 2,167 | 25.4 per 1,000 | 9 | 92.5% |
| [South Cambridgeshire 022E](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01018248) | 2,227 | 43.9 per 1,000 | 10 | 99.0% |
| [South Cambridgeshire 022G](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01018225) | 1,040 | 53.1 per 1,000 | 7 | 98.9% |

## Your MP

- [Cambridge](https://openindex.co.uk/constituency/cambridge): Daniel Zeichner (Labour), MP since July 2024. 72% of the people here.
- [St Neots and Mid Cambridgeshire](https://openindex.co.uk/constituency/st-neots-and-mid-cambridgeshire): Ian Sollom (Liberal Democrat), MP since July 2024. 23% of the people here.
- [South Cambridgeshire](https://openindex.co.uk/constituency/south-cambridgeshire): Pippa Heylings (Liberal Democrat), MP since July 2024. 4.5% 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 CB3

[Eddington & Castle](https://openindex.co.uk/cambridge/eddington-and-castle)

## Postcode sectors in CB3

[CB3 0 (240 postcodes)](https://openindex.co.uk/postcode/cb3-0), [CB3 1 (40 postcodes)](https://openindex.co.uk/postcode/cb3-1), [CB3 9 (138 postcodes)](https://openindex.co.uk/postcode/cb3-9)

## Councils CB3 covers

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

## Towns in CB3

[Cambridge](https://openindex.co.uk/cambridge)

## Postcode districts next to CB3

[CB2](https://openindex.co.uk/postcode/cb2), [CB4](https://openindex.co.uk/postcode/cb4), [CB5](https://openindex.co.uk/postcode/cb5), [CB23](https://openindex.co.uk/postcode/cb23), [CB24](https://openindex.co.uk/postcode/cb24)

## Nearest rail stations

[Cambridge (3.7 km from the middle)](https://openindex.co.uk/map/rail-stations?around=0.1375,52.1941), [Cambridge North (4.8 km from the middle)](https://openindex.co.uk/map/rail-stations?around=0.1585,52.2245), [Cambridge South (5.0 km from the middle)](https://openindex.co.uk/map/rail-stations?around=0.1315,52.1742)

## 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)

## CB3 in brief

CB3 is a postcode district covering Cambridge, Ridgeway Village and Newnham, in Cambridge and South Cambridgeshire.
About 25,468 people lived in CB3 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £624,145 in 2025 across 211 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 39.9 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in CB3 was £624,145 in 2025.
CB3 had 23,698 usual residents at the census.
About 0% of people in CB3 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In CB3, 91.5% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Postcode district
- Code: CB3
- Postcode area: [CB](https://openindex.co.uk/postcode/cb)
- Constituency: [Cambridge †](https://openindex.co.uk/constituency/cambridge)
- Council: [Cambridge †](https://openindex.co.uk/cambridge)
- Area: 19.71 km²
- People, mid-2024: 25,468*
- Neighbourhoods: 9
- Output areas: 52

* 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

[CB23](https://openindex.co.uk/postcode/cb23), [CB4](https://openindex.co.uk/postcode/cb4), [CB2](https://openindex.co.uk/postcode/cb2), [CB24](https://openindex.co.uk/postcode/cb24), [CB5](https://openindex.co.uk/postcode/cb5)

## Latest updates for CB3

- 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/CB3

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/cb3, or to one figure with its anchor, https://openindex.co.uk/postcode/cb3#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/cb3