# CB1

Postcode district covering Cambridge, Newtown and Romsey Town, in Cambridge.

CB1 is a postcode district covering Cambridge, Newtown and Romsey Town, in Cambridge. Median sale price £490,000 in 2025. Recorded crime 100.1 per 1,000 people.

Postcode district. Code CB1. 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 CB1 postcode. [How census figures are added up](https://openindex.co.uk/sources/population)

## Key figures

- **Median sale price: £490,000** (2025). The median price paid for a home in CB1 was £490,000 in 2025. Joint 299th 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/cb1#f-house-sales-median-price
- **Population: 54,846** (2021). CB1 had 54,846 usual residents at the census (ONS Census 2021). 133rd 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/cb1#f-population
- **People in radon Affected Area squares: 0%** (2022). About 0% of people in CB1 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/cb1#f-radon-affected-share
- **Gigabit broadband coverage: 96.8%** (January 2026). In CB1, 96.8% 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/cb1#f-gigabit-coverage

## On the map

- [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas?place=CB1) (Worked out by Open Index · 2022): About 0% of people in CB1 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=CB1) (Worked out by Open Index · 2025): 583 homes were sold in CB1 in 2025.
- [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime?place=CB1) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for CB1.
- [Population by postcode district](https://openindex.co.uk/map/population?place=CB1) (Census 2021, England and Wales): CB1 had 54,846 usual residents at the census.

## How CB1 compares

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

| Measure | CB1 | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £490,000 | 5th most expensive | 16 postcode districts, CB · 2025 |
| Population | 54,846 | 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 | 96.8% | 2nd highest | 16 postcode districts, CB · Jan 2026 |

## Is CB1 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in CB1 at a rate of 100.1 per 1,000 people.
That compares with 75.3 per 1,000 people across the CB postcode area.
In August 2026 alone, 520 cases of crime and anti-social behaviour were recorded in CB1.
In the 12 months to August 2026, the most common types were violence and sexual offences (1,687), other crime (1,245) and anti-social behaviour (825).
A year earlier, the recorded crime rate in CB1 was 97.5 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 CB1, neighbourhood by neighbourhood

- Deprivation is ranked by neighbourhood, so CB1 has no single figure. Of its 31 neighbourhoods with a rank:
- Decile 5: 1 neighbourhood
- Decile 6: 4 neighbourhoods
- Decile 7: 5 neighbourhoods
- Decile 8: 8 neighbourhoods
- Decile 9: 6 neighbourhoods
- Decile 10 (England’s least deprived 10%): 7 neighbourhoods

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

## Neighbourhoods in CB1

| Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
| --- | --- | --- | --- | --- |
| [Cambridge 008A](https://openindex.co.uk/cambridge/neighbourhood/e01017987) | 1,974 | 187.7 per 1,000 | 8 | 98.3% |
| [Cambridge 008B](https://openindex.co.uk/cambridge/neighbourhood/e01017988) | 1,759 | 226.9 per 1,000 | 8 | 99.5% |
| [Cambridge 008C](https://openindex.co.uk/cambridge/neighbourhood/e01017989) | 1,921 | 59.4 per 1,000 | 8 | 99.9% |
| [Cambridge 008D](https://openindex.co.uk/cambridge/neighbourhood/e01017990) | 1,195 | 183.6 per 1,000 | 8 | 99.3% |
| [Cambridge 008E](https://openindex.co.uk/cambridge/neighbourhood/e01017991) | 1,381 | 182.1 per 1,000 | 6 | 99.7% |
| [Cambridge 009A](https://openindex.co.uk/cambridge/neighbourhood/e01017997) | 2,645 | 54.4 per 1,000 | 7 | 99.2% |
| [Cambridge 009B](https://openindex.co.uk/cambridge/neighbourhood/e01017998) | 1,892 | 94.6 per 1,000 | 9 | 99.5% |
| [Cambridge 009C](https://openindex.co.uk/cambridge/neighbourhood/e01017999) | 2,205 | 115.9 per 1,000 | 6 | 99.9% |
| [Cambridge 009D](https://openindex.co.uk/cambridge/neighbourhood/e01018000) | 1,824 | 38.5 per 1,000 | 9 | 98.8% |
| [Cambridge 009E](https://openindex.co.uk/cambridge/neighbourhood/e01018001) | 1,622 | 81.3 per 1,000 | 9 | 99.9% |
| [Cambridge 010A](https://openindex.co.uk/cambridge/neighbourhood/e01017965) | 1,737 | 64.0 per 1,000 | 8 | 99.6% |
| [Cambridge 010C](https://openindex.co.uk/cambridge/neighbourhood/e01017967) | 1,731 | 49.3 per 1,000 | 6 | 99.2% |
| [Cambridge 010D](https://openindex.co.uk/cambridge/neighbourhood/e01017968) | 1,571 | 79.3 per 1,000 | 10 | 99.9% |
| [Cambridge 010E](https://openindex.co.uk/cambridge/neighbourhood/e01017969) | 1,763 | 52.8 per 1,000 | 9 | 99.6% |
| [Cambridge 010F](https://openindex.co.uk/cambridge/neighbourhood/e01035518) | 1,680 | 167.9 per 1,000 | 9 | 85.7% |
| [Cambridge 010G](https://openindex.co.uk/cambridge/neighbourhood/e01035519) | 2,341 | 29.9 per 1,000 | 9 | 96.9% |
| [Cambridge 011A](https://openindex.co.uk/cambridge/neighbourhood/e01017959) | 1,787 | 66.2 per 1,000 | 10 | 95.2% |
| [Cambridge 011B](https://openindex.co.uk/cambridge/neighbourhood/e01017960) | 1,451 | 103.1 per 1,000 | 5 | 99.7% |
| [Cambridge 011C](https://openindex.co.uk/cambridge/neighbourhood/e01017961) | 1,213 | 121.9 per 1,000 | 6 | 100.0% |
| [Cambridge 011D](https://openindex.co.uk/cambridge/neighbourhood/e01017962) | 1,897 | 58.1 per 1,000 | 7 | 99.5% |
| [Cambridge 011E](https://openindex.co.uk/cambridge/neighbourhood/e01017963) | 1,623 | 74.1 per 1,000 | 7 | 99.9% |
| [Cambridge 011F](https://openindex.co.uk/cambridge/neighbourhood/e01017964) | 1,372 | 46.4 per 1,000 | 10 | 99.6% |
| [Cambridge 013A](https://openindex.co.uk/cambridge/neighbourhood/e01017992) | 2,088 | 46.6 per 1,000 | 8 | 98.9% |
| [Cambridge 013C](https://openindex.co.uk/cambridge/neighbourhood/e01017994) | 1,900 | 51.9 per 1,000 | 7 | 100.0% |
| [Cambridge 013D](https://openindex.co.uk/cambridge/neighbourhood/e01017995) | 2,127 | 151.5 per 1,000 | 10 | 98.5% |
| [Cambridge 013E](https://openindex.co.uk/cambridge/neighbourhood/e01017996) | 2,073 | 66.3 per 1,000 | 10 | 96.3% |
| [Cambridge 013F](https://openindex.co.uk/cambridge/neighbourhood/e01035520) | 1,962 | 23.0 per 1,000 | 10 | 99.6% |
| [Cambridge 014B](https://openindex.co.uk/cambridge/neighbourhood/e01035522) | 1,979 | 121.1 per 1,000 | 8 | 41.7% |
| [South Cambridgeshire 011B](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01018243) | 1,627 | 165.9 per 1,000 | 8 | 98.4% |
| [South Cambridgeshire 011D](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01018286) | 1,581 | 95.7 per 1,000 | 7 | 92.4% |
| [South Cambridgeshire 011E](https://openindex.co.uk/south-cambridgeshire/neighbourhood/e01018287) | 1,285 | 61.6 per 1,000 | 10 | 100.0% |

## Your MP

- [Cambridge](https://openindex.co.uk/constituency/cambridge): Daniel Zeichner (Labour), MP since July 2024. 66% of the people here.
- [South Cambridgeshire](https://openindex.co.uk/constituency/south-cambridgeshire): Pippa Heylings (Liberal Democrat), MP since July 2024. 30% 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. 3.4% 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 CB1

[Addenbrooke's & Queen Edith's](https://openindex.co.uk/cambridge/addenbrookes-and-queen-ediths), [Cherry Hinton](https://openindex.co.uk/cambridge/cherry-hinton), [Coleridge](https://openindex.co.uk/cambridge/coleridge), [Fulbourn & Teversham](https://openindex.co.uk/south-cambridgeshire/fulbourn-and-teversham), [Petersfield](https://openindex.co.uk/cambridge/petersfield), [Romsey](https://openindex.co.uk/cambridge/romsey)

## Postcode sectors in CB1

[CB1 0 (238 postcodes)](https://openindex.co.uk/postcode/cb1-0), [CB1 1 (110 postcodes)](https://openindex.co.uk/postcode/cb1-1), [CB1 2 (171 postcodes)](https://openindex.co.uk/postcode/cb1-2), [CB1 3 (291 postcodes)](https://openindex.co.uk/postcode/cb1-3), [CB1 7 (87 postcodes)](https://openindex.co.uk/postcode/cb1-7), [CB1 8 (101 postcodes)](https://openindex.co.uk/postcode/cb1-8), [CB1 9 (161 postcodes)](https://openindex.co.uk/postcode/cb1-9)

## Council

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

## Towns in CB1

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

## Postcode districts next to CB1

[CB2](https://openindex.co.uk/postcode/cb2), [CB4](https://openindex.co.uk/postcode/cb4), [CB5](https://openindex.co.uk/postcode/cb5), [CB21](https://openindex.co.uk/postcode/cb21), [CB22](https://openindex.co.uk/postcode/cb22), [CB23](https://openindex.co.uk/postcode/cb23), [CB25](https://openindex.co.uk/postcode/cb25)

## Nearest rail stations

[Cambridge (2.4 km from the middle)](https://openindex.co.uk/map/rail-stations?around=0.1375,52.1941), [Cambridge South (2.8 km from the middle)](https://openindex.co.uk/map/rail-stations?around=0.1315,52.1742), [Shelford (Cambs) (4.4 km from the middle)](https://openindex.co.uk/map/rail-stations?around=0.1400,52.1488), [Cambridge North (4.5 km from the middle)](https://openindex.co.uk/map/rail-stations?around=0.1585,52.2245)

## 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)

## CB1 in brief

CB1 is a postcode district covering Cambridge, Newtown and Romsey Town, in Cambridge.
About 55,808 people lived in CB1 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £490,000 in 2025 across 583 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 100.1 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in CB1 was £490,000 in 2025.
CB1 had 54,846 usual residents at the census.
About 0% of people in CB1 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In CB1, 96.8% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Postcode district
- Code: CB1
- 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: 19.29 km²
- People, mid-2024: 55,808*
- Neighbourhoods: 31
- Output areas: 172

* 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

[CB5](https://openindex.co.uk/postcode/cb5), [CB2](https://openindex.co.uk/postcode/cb2), [CB21](https://openindex.co.uk/postcode/cb21), [CB23](https://openindex.co.uk/postcode/cb23), [CB22](https://openindex.co.uk/postcode/cb22), [CB25](https://openindex.co.uk/postcode/cb25)

## Latest updates for CB1

- 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/CB1

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/cb1, or to one figure with its anchor, https://openindex.co.uk/postcode/cb1#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/cb1