Broadband & Mobile Availability for Chelmsford

Official Broadband and Mobile Statistics for 2024

At 67.7%, Ultrafast (Full Fibre) coverage is almost consistent with the 70% national benchmark, with a small gap remaining for Chelmsford to close. 5G geographic reach is considerably limited at just 29.88%, placing Chelmsford in the lowest tier of national investment compared to the 62% average (Sep 2025).

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Broadband Network Coverage for Chelmsford

Broadband TypeAvailabilityAvg Download SpeedAvg Upload Speed
Ultrafast
(Above 300 Mbit/s)
67.7%1057 Mbps209 Mbps
Superfast
(Below 100 Mbit/s)
29.3%61 Mbps16 Mbps
Standard
(Below 30 Mbit/s)
2.8%18.8 Mbps2.4 Mbps
Below USO
(Below 10 Mbit/s)
0.7%6.3 Mbps1.1 Mbps

Source: Ofcom Connected Nations data, (July 2024). Some data may be overlapping or lacking accuracy

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Mobile Network Coverage & Non-Spots

A snapshot of signal strength across Chelmsford's area and surroundings, showing the reliability of current networks and future readiness.

Future-Ready Signal

5G

32.1% below UK average

This shows the percentage of land area covered by at least one 5G network. The score of 29.88% is significantly below the national average (62%), indicating limited 5G investment to date.

Reliable 4G Coverage

4G

Similar to UK average

This critical score shows the percentage of Chelmsford's land area where all four major networks provide a dependable 4G signal. A result of 96.31% confirms strong coverage with low mobile ‘not-spot‘ risk.

Basic 3G Safety Net

3G

89.5% below UK average

This indicates the reliability of the basic signal across the entire region (as of July 2024). At 9.59%, the safety net for basic calls shows some gaps.

Mobile Geographic coverage (Spring 2025)
  • 3G is being phased out by most operators, making its coverage minimal and its use declining. Presence seems to be limited in rural areas.
  • Coverage varies significantly, with rural areas having much lower 4G and 5G availability than urban areas.
  • The percentage of 5G connections is growing rapidly, while the percentage of 4G connections is decreasing and overtaken more often.