CO1 postcode area guide — Colchester
House prices, crime, broadband speeds, mobile signal, schools and demographics for the CO1 postcode district in Colchester — every official dataset on one page.
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Where is CO1?
Broadband & internet speeds in CO1
Strong coverage
Superfast (30Mb+)
93.2%
Ultrafast (300Mb+)
71.7%
Gigabit-capable
71.7%
Below USO (10Mb)
0%
Broadband availability in the CO1 postcode district (Colchester) is Strong — superfast is near-universal and gigabit is rolling out. Across the 523 postcodes Ofcom measures in CO1, superfast broadband (30 Mbit/s or faster) reaches 93.2% of premises and gigabit-capable lines are available to 71.7%.
Around 0% of premises in CO1 fall below the Universal Service Obligation (a minimum of 10 Mbit/s download and 1 Mbit/s upload), so the overwhelming majority of homes and businesses here can already order a decent fixed line. For a business that depends on its connection, the figures that matter most are gigabit and full-fibre availability — the symmetric, low-contention services we quote leased lines and FTTP against.
Sample postcodes in CO1
| Postcode | Superfast | Gigabit |
|---|---|---|
| CO1 1AA | 100% | 0% |
| CO1 1AG | 100% | 0% |
| CO1 1AH | 100% | 100% |
| CO1 1AJ | 100% | 63.2% |
| CO1 1AN | 100% | 0% |
| CO1 1AP | 100% | 56.3% |
| CO1 1AQ | 100% | 100% |
| CO1 1AT | 100% | 100% |
| CO1 1AU | 100% | 0% |
| CO1 1AW | 100% | 0% |
Run a speed test to see what you're actually getting, or check your exact postcode.
Mobile signal around Colchester
Ofcom's coverage model for the wider Colchester district (91,695 premises):
4G indoors — all networks
86.7%
4G outdoors — all networks
99.5%
5G outdoors — all networks
47.1%
Voice indoors — all networks
87.9%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
Crime in CO1
Police recorded 480 incidents within about a mile of the centre of CO1 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Violence & sexual offences | 193 | 40.2% |
| Anti-social behaviour | 66 | 13.8% |
| Shoplifting | 58 | 12.1% |
| Public order | 43 | 9.0% |
| Criminal damage & arson | 32 | 6.7% |
| Other theft | 29 | 6.0% |
| Drugs | 13 | 2.7% |
| Vehicle crime | 9 | 1.9% |
Raw counts favour busy town centres — a high street with shops and nightlife records more incidents than a residential cul-de-sac. Source: police.uk open data (point sample around the district centroid).
House prices in CO1
Based on 287 sales registered with HM Land Registry in the last 12 months, the median sold price in CO1 is £220,000, down 1.9% on the previous year (£224,200).
Detached
£350,000
20 sales
Semi-detached
£320,000
51 sales
Terraced
£237,500
117 sales
Flat / maisonette
£155,000
87 sales
Latest recorded sales in CO1
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 21 May 2026 | £326,000 | Terraced | Old Heath Road | CO1 2ES |
| 19 May 2026 | £163,000 | Flat | George Williams Way | CO1 2JP |
| 15 May 2026 | £145,000 | Flat | Hunting Gate | CO1 2XE |
| 12 May 2026 | £82,000 | Flat | Exeter Drive | CO1 2RX |
| 8 May 2026 | £301,500 | Terraced | Lenz Close | CO1 2FP |
| 7 May 2026 | £126,000 | Flat | St Peters Street | CO1 1EW |
| 6 May 2026 | £210,000 | Flat | Clarendon Way | CO1 1DL |
| 1 May 2026 | £252,500 | Semi-detached | Haddon Park | CO1 2GY |
| 30 Apr 2026 | £237,500 | Terraced | Greenstead Road | CO1 2SY |
| 30 Apr 2026 | £275,000 | Flat | Hamilton Place | CO1 1XF |
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.
Who lives here? Colchester demographics
Census 2021 figures for the wider Colchester district (192,716 residents, 79,711 households):
| Age profile | |
|---|---|
| Under 15 | 18.9% |
| 15–29 | 25.5% |
| 30–44 | 19.7% |
| 45–64 | 18.2% |
| 65+ | 17.8% |
| Housing tenure | |
|---|---|
| Owner-occupied | 64.6% |
| Private rented | 21.6% |
| Social rented | 6.2% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around CO1
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| North Primary School and Nursery | Primary | 3–11 | 458 | CO1 1RP |
| St James the Great Church of England Primary School | Primary | 2–11 | 438 | CO1 2RA |
| Kendall Church of England Primary School | Primary | 4–11 | 209 | CO1 2HH |
| St Thomas More's Catholic Primary School, Colchester | Primary | 4–11 | 209 | CO1 2QB |
| The Sixth Form College Colchester | 16 plus | 16–99 | — | CO1 1SN |
Source: DfE Get Information about Schools (England & Wales). Check Ofsted report cards for inspection detail — headline one-word grades were retired in 2024.
Food hygiene ratings in CO1
332 rated food businesses operate in CO1. 228 hold the top rating of 5, 26 are rated 4, and 7 are rated 2 or below.
Among the 5-rated: ABI Store, Aburi Japanese Restaurant, Adamexpo Limited, Airhop Trampoline Park, Alderwood Care Home.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in CO1
From a sample of 160 Energy Performance Certificates across 11 CO1 postcodes, the most common rating is band C (average band D). 58% of sampled homes are rated C or better.
Band B
3%
Band C
56%
Band D
32%
Band E
9%
Band F
1%
Source: MHCLG Energy Performance of Buildings Data (England & Wales), sampled at postcode level and refreshed monthly. Individual certificates are on each postcode’s page.
Phone area codes for Colchester
Landlines around CO1 typically use:
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What's it like living in CO1?
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Moving to CO1? Sort your connectivity first
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Postcodes in CO1
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Frequently asked questions
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Sources: HM Land Registry Price Paid Data, police.uk street-level crime, Ofcom Connected Nations, ONS Census 2021, DfE Get Information about Schools, Food Standards Agency FHRS — all © Crown copyright, licensed under the Open Government Licence v3.0. Figures are area aggregates; individual addresses vary. Energy performance (EPC) data will be added when our Open Data Communities registration is approved.