SG4 postcode
Broadband in SG4 8YG
Codicote, North Hertfordshire
Gigabit broadband is available at this postcode.
Free, independent comparison · Ofcom verified data · Updated 1 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 SG4 8YG. That covers your 14 Mbps needs with room to spare.
Speed Test
Check your current download speed and see how it compares to what is available at SG4 8YG.
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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) | 100% | 100% | 10-20 Mbps |
| Superfast (30+ Mbps) | 100% | 100% | 30-80 Mbps |
| Ultrafast (100+ Mbps) | 100% | 100% | 100-300 Mbps |
| Full Fibre (FTTP) | N/A | N/A | 300-900 Mbps |
| Gigabit | 100% | 100% | 900-1,000 Mbps |
Speed Distribution at SG4 8YG
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 North Hertfordshire
Most common: Band
Annual council tax estimates for , 2024/25
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This is the area guide for SG4 8YG, located in Codicote (North Hertfordshire). It covers connectivity, property, safety, and local services. Every claim links back to a specific data point. Read on for the detail.
Superfast coverage here stands at 100%. Nationally, 93% of UK premises have access. Coverage at this postcode is strong. Ultrafast broadband (100 Mbps+) reaches 100% of properties. That is solid coverage for bandwidth-heavy households. Gigabit-capable connections cover 100% of premises. Most homes can access gigabit speeds if they choose to.
Here is how broadband speeds break down across premises at SG4 8YG. 100% 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. Over half of connections exceed 300 Mbps. That supports multiple 4K streams, large file transfers, and cloud gaming without issue.
Here is how the broadband at SG4 8YG maps against common household needs. Most premises have superfast speeds. Remote working with video calls and cloud tools should be manageable for most households.
FWA broadband has not reached SG4 8YG yet. Satellite services like Starlink or 4G home broadband routers can fill the gap where fixed-line options are limited.
0% of premises at SG4 8YG fall below the Universal Service Obligation of 10 Mbps. Every property here meets the minimum standard. That is not the case everywhere. Next-generation access (NGA) reaches 100% of the area. NGA typically means speeds of 24 Mbps or above.
Flood risk at SG4 8YG 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.
4G outdoor coverage at SG4 8YG reaches 95%. 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.
Suitability scores for SG4 8YG: remote working 55/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.
SG4 8YG falls within the North Hertfordshire local authority area. The immediate area is Codicote, a distinct community within the wider district. The SG4 postcode area contains 890 postcodes on this site. Superfast broadband across SG4 ranges from 0% to 100%. SG4 8YG is above the area average of 92%.
How does SG4 8YG compare to its neighbours? SG4 8DZ (0.06 miles, codicote) has 100% superfast coverage and 100% gigabit. Coverage is broadly similar across these neighbouring postcodes.
Broadband availability varies by provider and by property. At SG4 8YG, 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.
Every part of Codicote has its own feel. This data gives you the factual starting point. A visit fills in the rest.
What does all of this mean for someone considering SG4 8YG? Connectivity at SG4 8YG is a strength. Strong broadband coverage gives flexibility for both working and leisure. The area scores well on that front. North Hertfordshire 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. Codicote 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.
Before making a decision about SG4 8YG, visit in person. Check the commute at rush hour. Try the mobile signal indoors. Look at local shops and green spaces. Ask about broadband reliability, not just speed. Data sets the scene, but real life fills in the gaps.
That is the full data picture for SG4 8YG in Codicote. Use it alongside your own research. For the most current broadband speeds, run a live speed test from this page. Check back periodically as data is refreshed with new releases.
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 SG4 8YG
What are the broadband speeds available at SG4 8YG?
Superfast broadband (30 Mbps+) is available to 100% of premises at SG4 8YG. Ultrafast coverage is at 100%.
What is the average house price near SG4 8YG?
No recent house price data is available for SG4 8YG.
What is the flood risk for properties at SG4 8YG?
SG4 8YG has a Medium flood risk rating. Check Environment Agency maps for detail.
What schools are nearby in the SG4 8YG area?
School data for SG4 8YG is being updated. Check the Get Information About Schools service for the latest.
How does crime rate in SG4 8YG compare to other areas?
Crime data for this area is being updated.
How suitable is SG4 8YG for remote working?
SG4 8YG scores 55/100 for remote working suitability. Speeds may limit video-heavy workflows.
What is the mobile signal like at SG4 8YG?
4G outdoor coverage at SG4 8YG is 95%. Indoor coverage may be lower.
What is the most common energy efficiency rating near SG4 8YG?
EPC data for SG4 8YG is being updated. Check the EPC register for individual property ratings.
What is the council tax band distribution at SG4 8YG?
Council tax band information for SG4 8YG is being updated.
How accessible are GP surgeries near SG4 8YG?
GP surgery data for SG4 8YG is being updated. Check NHS.uk for the latest.
What transport links are available near SG4 8YG?
Transport data for SG4 8YG is being updated.
Is SG4 8YG a suitable area for families?
SG4 8YG scores 50/100 for family suitability. Check school and crime sections above for detail.
What is the air quality like at SG4 8YG?
Air quality data for SG4 8YG is being updated.
How far is the nearest EV charging point from SG4 8YG?
EV charging data for SG4 8YG is being updated. Check Zap-Map for the latest.
Can I get full fibre broadband at SG4 8YG?
Ultrafast broadband (100 Mbps+) reaches 100% of premises. Check Openreach and local operators for FTTP availability.
Area suitability scores
SG4 8YGRemote Worker
55Based 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
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Area info
Parish
Codicote
District
North Hertfordshire
Region
Constituency
LSOA
E01023596
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