MK18 postcode

Broadband in MK18 3JX

Granborough, Buckinghamshire

Gigabit broadband is available at this postcode.

Best speed50% Gigabit
StandardSuperfastGigabit
Compare Broadband Deals →

Free, independent comparison · Ofcom verified data · Updated 14 March 2026

Flood Risk

Medium

Fibre (FTTP)

No

Best speed

50% Gigabit

Reviewed by Sage MitchellData last verified: 14 March 2026

Speed Calculator

Adjust the options below to see how much broadband speed your household needs.

2
18

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.

Estimated speed needed14 Mbps

Gigabit broadband (50% Gigabit) is available at MK18 3JX. That covers your 14 Mbps needs with room to spare.

Compare Deals in MK18 3JX

Speed Test

Check your current download speed and see how it compares to what is available at MK18 3JX.

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)

TechnologyAvailableCoverageTypical Speed
Standard (ADSL)50%
50%
10-20 Mbps
Superfast (30+ Mbps)50%
50%
30-80 Mbps
Ultrafast (100+ Mbps)50%
50%
100-300 Mbps
Full Fibre (FTTP)N/A
N/A
300-900 Mbps
Gigabit50%
50%
900-1,000 Mbps

Speed Distribution at MK18 3JX

10–30 Mbps (50%)
300+ Mbps (50%)

Source: Ofcom Connected Nations 2025

Real-World Speeds at MK18 3JX

Based on 5 Ookla Speedtest results (Q4 2025)

Download

137

Mbps

Upload

137

Mbps

Latency

17

ms

Tests

5

results

Source: Ookla Speedtest Open Data (CC BY-SA 4.0)

Digital Divide at MK18 3JX

Below USO (can't get 10/1 Mbps)0%
Unable to receive 30 Mbps (no superfast)50%
Next Generation Access (NGA) coverage50%

Fibre-to-cabinet or better

Decent broadband via Fixed Wireless (FWA)0%

Source: Ofcom Connected Nations 2025

Cell Tower Coverage near MK18 3JX

No cell towers found within 2 km. Mobile signal may be weak in this area.

Source: OpenStreetMap Contributors

Mobile coverage

4G & 5G coverage · Ofcom Connected Nations 2025

4G Outdoor

99.8%

4G Indoor

99.3%

5G Outdoor

96.5%

Networks with 4G

EEO2ThreeVodafone
Ofcom Connected Nations 2025 (Jul 2025) · Data at local authority area level

Crime summary

Based on Police.uk data for 2025-12

Total crimes last month: 0

Schools nearby

Nearest schools within 5 miles · Ofsted ratings as at Jan 2026

SchoolTypeOfstedRatingDistance
North Marston Church of England SchoolPrimaryNot available★★★☆☆1.1 mi
East Claydon Church of England SchoolPrimaryNot available★★★☆☆2.0 mi
Furze Down SchoolSpecialNot available★★★☆☆2.2 mi
Winslow Church of England SchoolPrimaryNot available★★★☆☆2.4 mi
Sir Thomas Fremantle SchoolSecondaryNot available★★★☆☆2.5 mi

Compare broadband in MK18 3JX

Find the best broadband packages available at your address.

Compare Deals Now

Flood risk

Zone 2/3

🟠

Flood risk: Medium

This postcode is in Zone 2/3 — medium risk of flooding from rivers and sea.

Flood Zone

Zone 2/3

Risk Level

Medium

Environment Agency flood risk data

Air quality

Particulate matter & nitrogen dioxide levels

Fair air quality

Air quality data not available.

PM2.5 (fine particles)2.2 μg/m³

WHO guideline: 15 μg/m³

PM10 (coarse particles) μg/m³

WHO guideline: 45 μg/m³

NO₂ (nitrogen dioxide) μg/m³

WHO guideline: 25 μg/m³

Open-Meteo Air Quality API · Guidelines: WHO 2021

Area demographics

Data for LSOA: Buckinghamshire 006C

Population

1,206

Census 2021

Density

43

per km² · Rural

Median Age

42

years (est.)

Estimated from area type (density-based); exact value requires Census TS007 age breakdown

Census 2021 (ONS via Nomis NM_2028_1, NM_2026_1)

Deprivation index (IMD)

English Indices of Deprivation 2019 · LSOA: E01017715

Overall IMD Decile

8 / 10

Above average

Ranked

24,175

of 32,844 areas

Decile 10 = least deprived 10% of England. Decile 1 = most deprived 10%. Based on Aylesbury Vale 006C (2019 boundaries).

DomainDecileRankAssessment
Income927,407Least deprived
Employment1030,799Least deprived
Education94Least deprived
Health9-1Least deprived
Crime10-1Least deprived
English Indices of Deprivation 2019 (MHCLG)

Transport links

Nearest train stations and towns

Nearest train stations

No train stations found within 15 miles

NaPTAN · Straight-line distances

EV charging nearby

Public EV charging points within 5 miles

🔋

EV Charger

Type 2

5.2 mi

away

🔋

EV Charger

Type 22 points

5.7 mi

away

🔋

EV Charger

Type 2

6.4 mi

away

🔋

Pod Point

Type 24 points

6.7 mi

away

🔌

Aylesbury Vale District Council The Gateway

CHAdeMOCharge Your Car

6.7 mi

away

OpenStreetMap Overpass API (replaces decommissioned DFT National Chargepoint Registry, which closed Nov 2024) · Within 5 miles

Council tax bands

Band distribution for Buckinghamshire

D

Most common: Band D

2,189/yr · Buckinghamshire

A
3%£1,459
B
8%£1,702
C
18%£1,946
D
22%£2,189
E
20%£2,676
F
14%£3,162
G
10%£3,648
H
5%£4,378

Annual council tax estimates for Buckinghamshire, 2024/25

Valuation Office Agency (VOA) · Check exact band at gov.uk

EPC energy ratings

Energy Performance Certificate distribution for this area

D

Most common: Band D

EPC score 55–68

A
0%
B
0%
C
0%
D
1%
E
0%
F
0%
G
0%
EPC Open Data Communities API

GP surgeries nearby

Nearest NHS GP practices

1

WADDESDON SURGERY

HP18 0LY·4.9 miles away
Not accepting

new patients

2

HMP SPRING HILL

HP18 0TL·5.4 miles away
Not accepting

new patients

3

HMP GRENDON

HP18 0TL·5.4 miles away
Not accepting

new patients

4

BERRYCROFT COMMUNITY HEALTH CENTRE

HP18 1BB·5.5 miles away
Not accepting

new patients

5

PLANNED CARE AT FEDBUCKS

HP19 8HL·6.7 miles away
Not accepting

new patients

NHS website (NHS.uk find a GP) · Nearest 3 GP practicesFind a GP →

Ready to switch? See what's available at your address.

Check Deals

Living near MK18 3JX

Granborough is home to MK18 3JX. 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 50%. Nationally, 93% of UK premises have access. Some properties may struggle with speed. Ultrafast broadband (100 Mbps+) reaches 50% of properties. Over half of premises have access to faster tiers. Gigabit-capable connections cover 50% of premises. Gigabit is available but not yet widespread at this postcode. The maximum download speed recorded is 50% Gigabit. That is around the UK real-world average of 69 Mbps.

The speed distribution at MK18 3JX tells a more detailed story than headline figures alone. 50% of connections fall in the 10 to 30 Mbps range. 50% 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. 50% of premises can hit 300 Mbps or more. That is enough for demanding multi-device households.

Here is how the broadband at MK18 3JX maps against common household needs. Upload speeds average 137.43 Mbps. That handles HD video calls, cloud backups, and uploading large files without issues. 4K streaming is possible on one device at a time. HD streaming works across multiple devices. Latency sits at 17 ms. Acceptable for most online gaming. Competitive players may notice occasional lag. Remote working is viable here. Video conferencing, cloud documents, and VPN connections should all perform well.

Fixed Wireless Access is not currently available at MK18 3JX. For properties without fibre, 4G or 5G home broadband from Three, EE, or Vodafone may be an alternative.

Real-world download speeds at MK18 3JX average 136.54 Mbps based on Ookla Speedtest data. This reflects what people actually get, not just what providers advertise. Upload speeds average 137.43 Mbps. Latency sits at 17 ms. That is acceptable for most online activities. This is based on 5 speed tests run by local users.

0% of premises at MK18 3JX 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 50% of the area. NGA typically means speeds of 24 Mbps or above.

The nearest tower is 7.03 km away.

0 crimes were reported near MK18 3JX in the most recent month. The level is relatively low. Data comes from Police.uk at LSOA level. One month is a snapshot, not a trend.

North Marston Church of England School is the closest school at 1.15 miles. It is a Primary school. Ofsted rates it as Not available. There are 5 schools within a few miles of this postcode.

Flood risk at MK18 3JX is rated Medium (Zone 2/3). Check Environment Agency flood maps for detailed information. Specialist flood insurance may be needed. Air quality is rated Fair with PM2.5 at 2.2 micrograms per cubic metre.

The LSOA covering MK18 3JX has a population of approximately 1206. Median age is 42. That is close to the national median of 40.

The nearest train station to MK18 3JX is Stockport, 116.4 miles away. The station is some distance away. Consider driving, or check for direct bus routes. Ashton-under-Lyne is the next closest at 120.4 miles. Manchester Piccadilly offers another option at 122.2 miles.

Properties around MK18 3JX most commonly fall into council tax Band D. The billing authority is Buckinghamshire. The three most common bands are D (22%), E (20%), C (18%). 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 MK18 3JX is available across 99.8% of the area. Indoor 4G drops to 99.3%. Indoor coverage is close to outdoor levels. Signal should be reliable throughout the building. 5G outdoor coverage is at 96.5%. That makes 5G home broadband a genuine alternative to fixed-line connections. 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 MK18 3JX: remote working 50/100, family 85/100, value 50/100. Remote workers may want to verify actual speeds before committing.

The local authority for MK18 3JX is Buckinghamshire. The immediate area is Granborough, a distinct community within the wider district. The MK18 postcode area contains 1232 postcodes on this site. Superfast broadband across MK18 ranges from 0% to 100%. MK18 3JX is below the area average of 88%.

How does MK18 3JX compare to its neighbours? MK18 3NP (0.33 miles, Granborough) has 35.3% superfast coverage and 35.3% gigabit. MK18 3NW (0.33 miles, Granborough) has 62.5% superfast coverage and 62.5% gigabit. MK18 3NS (0.35 miles, Granborough) has 10% superfast coverage and 10% gigabit. MK18 3NN (0.38 miles, Granborough) has 40% superfast coverage and 40% gigabit. MK18 3JX has better superfast coverage than its immediate neighbours.

Broadband availability varies by provider and by property. At MK18 3JX, 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.

The age profile is close to the national median. A mix of families, professionals, and retirees.

Pulling the data together for MK18 3JX, here is what stands out. Buckinghamshire 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. Granborough 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 MK18 3JX. 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 MK18 3JX. Broadband, property, schools, safety, and local services all in one place. For area-wide trends, see the Granborough hub page. Bookmark this page and check back as new data arrives.

Frequently asked questions about MK18 3JX

What are the broadband speeds available at MK18 3JX?

Superfast broadband (30 Mbps+) is available to 50% of premises at MK18 3JX. Maximum download speeds reach 50% Gigabit. Ultrafast coverage is at 50%.

What is the average house price near MK18 3JX?

No recent house price data is available for MK18 3JX.

What is the flood risk for properties at MK18 3JX?

MK18 3JX has a Medium flood risk rating, classified as Zone 2/3. Check Environment Agency maps for detail.

What schools are nearby in the MK18 3JX area?

The nearest school is North Marston Church of England School (Primary), 1.15 miles away. There are 5 schools within a few miles.

How does crime rate in MK18 3JX compare to other areas?

0 offences were recorded in this LSOA area in the latest month. This is relatively low.

How suitable is MK18 3JX for remote working?

MK18 3JX scores 50/100 for remote working suitability. Speeds may limit video-heavy workflows.

What is the mobile signal like at MK18 3JX?

4G outdoor coverage at MK18 3JX is 99.8%. 5G reaches 96.5%. Indoor coverage may be lower.

What is the most common energy efficiency rating near MK18 3JX?

EPC data for MK18 3JX is being updated. Check the EPC register for individual property ratings.

What is the council tax band distribution at MK18 3JX?

The most common council tax band near MK18 3JX is Band D. The billing authority is Buckinghamshire.

How accessible are GP surgeries near MK18 3JX?

GP surgery data for MK18 3JX is being updated. Check NHS.uk for the latest.

What transport links are available near MK18 3JX?

The nearest train station to MK18 3JX is Stockport, 116.4 miles away. Ashton-under-Lyne is also nearby.

Is MK18 3JX a suitable area for families?

MK18 3JX scores 85/100 for family suitability. Good schools and low crime contribute to a high score.

What is the air quality like at MK18 3JX?

Air quality at MK18 3JX is rated Fair. PM2.5 levels are 2.2 micrograms per cubic metre. Sensitive individuals should take note.

How far is the nearest EV charging point from MK18 3JX?

EV charging data for MK18 3JX is being updated. Check Zap-Map for the latest.

Can I get full fibre broadband at MK18 3JX?

Ultrafast broadband (100 Mbps+) reaches 50% of premises. Check Openreach and local operators for FTTP availability.

Area suitability scores

MK18 3JX

Remote Worker

50

Based on superfast broadband coverage, FTTP %, and 4G mobile outdoor coverage.

Family

85

Based on Ofsted school ratings, crime rate, flood risk, and GP surgery proximity.

Value for Money

50

Based on broadband quality relative to average house price in the area.

Map

Area info

Parish

Granborough

District

Buckinghamshire

Region

Constituency

LSOA

E01017715

Best deals

Compare broadband deals in MK18 3JX

Find the best packages from UK providers in minutes.

Check Available Deals

Broadband deals for MK18 3JX

Compare Deals