CO1 postcode
Broadband in CO1 1HJ
Colchester, Colchester
Gigabit broadband is available at this postcode.
Free, independent comparison · Ofcom verified data · Updated 13 March 2026
Flood Risk
Medium
Fibre (FTTP)
No
Best speed
Gigabit (1Gbps+)
Speed Calculator
Adjust the options below to see how much broadband speed your household needs.
HD uses ~5 Mbps per person. 4K uses ~25 Mbps.
Each person on calls needs around 10 Mbps.
Competitive gaming needs low latency as much as raw speed.
Cameras, thermostats, speakers and similar devices each use a few Mbps.
Gigabit broadband (Gigabit (1Gbps+)) is available at CO1 1HJ. That covers your 14 Mbps needs with room to spare.
Speed Test
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The test downloads a 2 MB file from our server and measures how long it takes.
This test measures download speed only. Results vary depending on network conditions.
Broadband availability
Source: Ofcom Connected Nations 2025 (Jul 2025)
| Technology | Available | Coverage | Typical Speed |
|---|---|---|---|
| Standard (ADSL) | 43% | 43% | 10-20 Mbps |
| Superfast (30+ Mbps) | 43% | 43% | 30-80 Mbps |
| Ultrafast (100+ Mbps) | 43% | 43% | 100-300 Mbps |
| Full Fibre (FTTP) | 0% | 0% | 300-900 Mbps |
| Gigabit | 43% | 43% | 900-1,000 Mbps |
Speed Distribution at CO1 1HJ
Source: Ofcom Connected Nations 2025
Mobile coverage
4G & 5G coverage · Ofcom Connected Nations 2025
4G Outdoor
4G Indoor
5G Outdoor
Networks with 4G
Schools nearby
Nearest schools within 5 miles · Ofsted ratings as at Jan 2026
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Flood risk
🟠
Flood risk: Medium
This postcode is in undefined — medium risk of flooding from rivers and sea.
Flood Zone
Risk Level
Medium
Air quality
Particulate matter & nitrogen dioxide levels
air quality
Air quality data not available.
WHO guideline: 15 μg/m³
WHO guideline: 45 μg/m³
WHO guideline: 25 μg/m³
Transport links
Nearest train stations and towns
Nearest train stations
No train stations found within 15 miles
Council tax bands
Band distribution for Colchester
Most common: Band
Annual council tax estimates for , 2024/25
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Check Deals →Living near CO1 1HJ
Colchester is home to CO1 1HJ. Whether you live here or plan to move, the data below paints a clear picture. Broadband, schools, crime, house prices, and local services all follow. The numbers speak for themselves.
Superfast coverage here stands at 42.9%. Nationally, 93% of UK premises have access. Some properties may struggle with speed. Ultrafast broadband (100 Mbps+) reaches 42.9% of properties. Fewer than half of homes here can get ultrafast speeds. Gigabit-capable connections cover 42.9% of premises. Gigabit is available but not yet widespread at this postcode.
The speed distribution at CO1 1HJ tells a more detailed story than headline figures alone. 57.1% of connections fall in the 10 to 30 Mbps range. 42.9% of connections fall in the 300 Mbps or faster range. No premises here are stuck below 5 Mbps. Every property meets the basic threshold for video calls. 42.9% of premises can hit 300 Mbps or more. That is enough for demanding multi-device households.
Here is how the broadband at CO1 1HJ maps against common household needs. Superfast coverage is limited here. Streaming HD video should work on one device. Multiple simultaneous streams may struggle during peak hours.
FWA broadband has not reached CO1 1HJ yet. Satellite services like Starlink or 4G home broadband routers can fill the gap where fixed-line options are limited.
The USO guarantees every UK home at least 10 Mbps. At CO1 1HJ, 0% of properties do not meet this threshold. Every property here meets the minimum standard. That is not the case everywhere. Next-generation access (NGA) reaches 42.9% of the area. NGA typically means speeds of 24 Mbps or above.
Flood risk at CO1 1HJ is rated Medium. Check Environment Agency flood maps for detailed information. Specialist flood insurance may be needed.
The three most common bands are D (25%), C (20%), E (20%). Band D corresponds to 1991 property values of £68,001 to £88,000. Current values are typically much higher. The spread across mid-range bands suggests a varied housing stock.
Outdoor 4G mobile signal at CO1 1HJ is available across 95% of the area. Indoor 4G drops to 85%. Some signal loss indoors is normal. Most calls and data should still work inside. Coverage data covers EE, O2, Three, Vodafone. Check each operator individually, as coverage varies by network. Strong 4G coverage combined with limited fixed broadband means 4G home broadband could be a practical alternative here.
Suitability scores for CO1 1HJ: remote working 35/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.
The local authority for CO1 1HJ is Colchester. The CO1 postcode area contains 514 postcodes on this site. Superfast broadband across CO1 ranges from 0% to 100%. CO1 1HJ is below the area average of 89%.
How does CO1 1HJ compare to its neighbours? CO1 1HR (0.01 miles, colchester-unparished-area) has 100% superfast coverage and 100% gigabit. CO1 1YE (0.02 miles, colchester-unparished-area) has 100% superfast coverage and 100% gigabit. CO1 1HB (0.02 miles, colchester-unparished-area) has 100% superfast coverage and 100% gigabit. CO1 1HS (0.03 miles, colchester-unparished-area) has 100% superfast coverage and 100% gigabit. Neighbouring postcodes tend to have better superfast coverage.
Broadband availability varies by provider and by property. At CO1 1HJ, check individual coverage tools from BT, Sky, Virgin Media, and local operators. If fibre is unavailable, consider 4G home broadband or satellite as alternatives. Speeds may still be adequate for most uses. Compare contract lengths, total costs over the term, and exit fees. The cheapest monthly rate is not always the best deal.
Life in Colchester depends on what matters to you. Broadband, transport, and local services vary by street.
What does all of this mean for someone considering CO1 1HJ? Colchester as a local authority area has its own planning priorities, council services, and infrastructure investment plans. Check the council website for the latest. The data covers what can be measured. Colchester has its own character that numbers alone cannot capture. Use these figures as a filter, then visit to get the full picture.
Data sources include Ofcom (broadband and mobile), Land Registry (house prices), Police.uk (crime), Ofsted (schools), Environment Agency (flood risk), and Open-Meteo (air quality). Council tax data comes from the Valuation Office Agency. EPC data is from DLUHC. Transport data uses NaPTAN. Speed distribution figures are from Ofcom Connected Nations. All figures are the latest available at the time of writing.
Numbers tell part of the story for CO1 1HJ. Visit at different times of day. Talk to neighbours. Check mobile signal indoors. Walk the route to the nearest school or station. Test the broadband speed from inside the property. These things do not show up in data.
This covers the key data for CO1 1HJ. Broadband, property, schools, safety, and local services all in one place. For area-wide trends, see the Colchester hub page. Bookmark this page and check back as new data arrives.
More local data is being added for this postcode
This page already has postcode-specific content, and more data-backed sections will appear as the remaining local datasets finish processing.
Frequently asked questions about CO1 1HJ
What are the broadband speeds available at CO1 1HJ?
Superfast broadband (30 Mbps+) is available to 42.9% of premises at CO1 1HJ. Ultrafast coverage is at 42.9%.
What is the average house price near CO1 1HJ?
No recent house price data is available for CO1 1HJ.
What is the flood risk for properties at CO1 1HJ?
CO1 1HJ has a Medium flood risk rating. Check Environment Agency maps for detail.
What schools are nearby in the CO1 1HJ area?
School data for CO1 1HJ is being updated. Check the Get Information About Schools service for the latest.
How does crime rate in CO1 1HJ compare to other areas?
Crime data for this area is being updated.
How suitable is CO1 1HJ for remote working?
CO1 1HJ scores 35/100 for remote working suitability. Speeds may limit video-heavy workflows.
What is the mobile signal like at CO1 1HJ?
4G outdoor coverage at CO1 1HJ is 95%. Indoor coverage may be lower.
What is the most common energy efficiency rating near CO1 1HJ?
EPC data for CO1 1HJ is being updated. Check the EPC register for individual property ratings.
What is the council tax band distribution at CO1 1HJ?
Council tax band information for CO1 1HJ is being updated.
How accessible are GP surgeries near CO1 1HJ?
GP surgery data for CO1 1HJ is being updated. Check NHS.uk for the latest.
What transport links are available near CO1 1HJ?
Transport data for CO1 1HJ is being updated.
Is CO1 1HJ a suitable area for families?
CO1 1HJ scores 50/100 for family suitability. Check school and crime sections above for detail.
What is the air quality like at CO1 1HJ?
Air quality data for CO1 1HJ is being updated.
How far is the nearest EV charging point from CO1 1HJ?
EV charging data for CO1 1HJ is being updated. Check Zap-Map for the latest.
Can I get full fibre broadband at CO1 1HJ?
Ultrafast broadband (100 Mbps+) reaches 42.9% of premises. Check Openreach and local operators for FTTP availability.
Area suitability scores
CO1 1HJRemote Worker
35Based on superfast broadband coverage, FTTP %, and 4G mobile outdoor coverage.
Family
50Based on Ofsted school ratings, crime rate, flood risk, and GP surgery proximity.
Value for Money
50Based on broadband quality relative to average house price in the area.
Map
Area info
Parish
Colchester
District
Colchester
Region
Constituency
LSOA
E01035157
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