MK18 postcode

Broadband in MK18 3SJ

Winslow, Buckinghamshire

Gigabit broadband is available at this postcode.

Best speed90% Gigabit
StandardSuperfastGigabit
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Free, independent comparison · Ofcom verified data · Updated 12 March 2026

Flood Risk

Medium

Fibre (FTTP)

No

Best speed

90% Gigabit

Reviewed by Arthur TuringData last verified: 12 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 (90% Gigabit) is available at MK18 3SJ. That covers your 14 Mbps needs with room to spare.

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Speed Test

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

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)100%
100%
10-20 Mbps
Superfast (30+ Mbps)100%
100%
30-80 Mbps
Ultrafast (100+ Mbps)90%
90%
100-300 Mbps
Full Fibre (FTTP)N/A
N/A
300-900 Mbps
Gigabit90%
90%
900-1,000 Mbps

Speed Distribution at MK18 3SJ

30–300 Mbps (11%)
300+ Mbps (90%)

Source: Ofcom Connected Nations 2025

Real-World Speeds at MK18 3SJ

Based on 50 Ookla Speedtest results (Q4 2025)

Download

369

Mbps

Upload

192

Mbps

Latency

9

ms

Tests

50

results

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

Digital Divide at MK18 3SJ

Below USO (can't get 10/1 Mbps)0%
Unable to receive 30 Mbps (no superfast)0%
Next Generation Access (NGA) coverage100%

Fibre-to-cabinet or better

Decent broadband via Fixed Wireless (FWA)0%

Source: Ofcom Connected Nations 2025

Cell Tower Coverage near MK18 3SJ

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

House prices

Average price

£443,375

Sales (5 yrs)

Trend

rising

Most recent sale

£670,000 on

DatePriceStreet
£670,000BRICKYARD DRIVE
£365,000BRICKYARD DRIVE
£420,000BRICKYARD DRIVE
£370,000BRICKYARD DRIVE
£375,250BRICKYARD DRIVE
£460,000BRICKYARD DRIVE

Crime summary

Based on Police.uk data for 2025-12

Total crimes last month: 22

other theft36%8
violent crime36%8
other crime18%4
drugs5%1
public order5%1

Schools nearby

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

SchoolTypeOfstedRatingDistance
Sir Thomas Fremantle SchoolSecondaryNot available★★★☆☆0.3 mi
Winslow Church of England SchoolPrimaryNot available★★★☆☆0.5 mi
Furze Down SchoolSpecialNot available★★★☆☆0.6 mi
Great Horwood Church of England SchoolPrimaryNot available★★★☆☆1.6 mi
Swanbourne Church of England VA SchoolPrimaryNot available★★★☆☆2.1 mi

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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)1.5 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 005B

Population

1,524

Census 2021

Density

242

per km² · Suburban

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: E01017736

Overall IMD Decile

7 / 10

Above average

Ranked

22,732

of 32,844 areas

Decile 10 = least deprived 10% of England. Decile 1 = most deprived 10%. Based on Aylesbury Vale 005B (2019 boundaries).

DomainDecileRankAssessment
Income515,276Average
Employment516,174Average
Education612Average
Health8N/AAbove average
Crime8N/AAbove average
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

🔋

Pod Point

Type 24 points

4.9 mi

away

🔋

Monta Charge

Type 22 points

5.1 mi

away

🔋

Monta Charge

Type 22 points

5.5 mi

away

🔋

Monta Charge

Type 22 points

5.6 mi

away

🔋

EV Charger

Type 2

5.6 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

B

Most common: Band B

EPC score 81–91

A
2%
B
29%
C
0%
D
0%
E
0%
F
0%
G
0%
EPC Open Data Communities API

GP surgeries nearby

Nearest NHS GP practices

1

WESTCROFT HEALTH CENTRE

MK4 4EN·5.3 miles away
Not accepting

new patients

2

MK COMMUNITY MENTAL HEALTH HUB

MK4 4EN·5.3 miles away
Not accepting

new patients

3

HMP WOODHILL

MK4 4DA·5.4 miles away
Not accepting

new patients

4

HMP OAKHILL STC

MK5 6AJ·5.4 miles away
Not accepting

new patients

5

THE SWAN PRACTICE

MK18 1NU·5.6 miles away
Not accepting

new patients

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

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Living near MK18 3SJ

MK18 3SJ sits in Winslow, part of Buckinghamshire. This guide covers broadband speeds, house prices, schools, and more. Every figure comes from verified public data sources. Use it alongside your own research when comparing areas.

Superfast broadband (30 Mbps+) coverage at MK18 3SJ stands at 100%. That is above the UK average of 93%. Ultrafast broadband (100 Mbps+) reaches 89.5% of properties. That is solid coverage for bandwidth-heavy households. Gigabit-capable connections cover 89.5% of premises. Most homes can access gigabit speeds if they choose to. The maximum download speed recorded is 90% Gigabit. That is above the UK real-world average of 69 Mbps.

The speed distribution at MK18 3SJ tells a more detailed story than headline figures alone. 10.5% of connections fall in the 30 to 300 Mbps range. 89.5% 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.

Translating the numbers at MK18 3SJ into daily use gives a clearer picture. Upload speeds average 191.65 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 is 9 ms. That is excellent for online gaming, competitive play, and real-time applications. 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 3SJ. For properties without fibre, 4G or 5G home broadband from Three, EE, or Vodafone may be an alternative.

Ookla Speedtest users at MK18 3SJ see average downloads of 368.67 Mbps. Advertised speeds often differ from reality. These figures come from actual user tests. Upload speeds average 191.65 Mbps. Latency sits at 9 ms. That is excellent for responsive browsing and gaming. This is based on 50 speed tests run by local users.

The USO guarantees every UK home at least 10 Mbps. At MK18 3SJ, 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 100% of the area. NGA typically means speeds of 24 Mbps or above.

The nearest tower is 6.57 km away.

The average property price at MK18 3SJ is £443,375. That is above the UK average of around £290,000. This is based on 6 recorded transactions from Land Registry data.

22 crimes were reported near MK18 3SJ in the most recent month. The level is moderate. The most common category was other theft. Other frequent types include violent crime and other crime. Data comes from Police.uk at LSOA level. One month is a snapshot, not a trend.

Sir Thomas Fremantle School is the closest school at 0.33 miles. It is a Secondary school. Ofsted rates it as Not available. There are 5 schools within a few miles of this postcode.

Flood risk at MK18 3SJ 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 1.5 micrograms per cubic metre.

The LSOA covering MK18 3SJ has a population of approximately 1524. Median age is 42. That is close to the national median of 40.

The nearest train station to MK18 3SJ is Stockport, 114.1 miles away. The station is some distance away. Consider driving, or check for direct bus routes. Ashton-under-Lyne is the next closest at 118 miles. Manchester Piccadilly offers another option at 119.8 miles.

The most common council tax band near MK18 3SJ is 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 3SJ 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.

Suitability scores for MK18 3SJ: remote working 70/100, family 75/100, value 50/100. Broadband is adequate for most remote working needs.

MK18 3SJ falls within the Buckinghamshire local authority area. The immediate area is Winslow, 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 3SJ is above the area average of 88%.

How does MK18 3SJ compare to its neighbours? MK18 3LY (0.07 miles, Winslow) has 100% superfast coverage and 0% gigabit. MK18 3SN (0.08 miles, Winslow) has 100% superfast coverage and 100% gigabit. MK18 3SB (0.1 miles, Winslow) has 100% superfast coverage and 100% gigabit. MK18 3SQ (0.11 miles, Winslow) has 100% superfast coverage and 100% gigabit. Coverage is broadly similar across these neighbouring postcodes.

When choosing a broadband provider at MK18 3SJ, check what technology reaches your specific address. Availability varies by street and sometimes by building. 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 3SJ, here is what stands out. Connectivity at MK18 3SJ is a strength. Strong broadband coverage gives flexibility for both working and leisure. The area scores well on that front. 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. Winslow 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.

Data is a starting point for Winslow. Walk the streets at different times. Test your mobile signal. Check parking, noise levels, and the feel of the neighbourhood. Run a speed test on the actual connection. Some things only a visit can reveal.

That is the full data picture for MK18 3SJ in Winslow. 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.

Frequently asked questions about MK18 3SJ

What are the broadband speeds available at MK18 3SJ?

Superfast broadband (30 Mbps+) is available to 100% of premises at MK18 3SJ. Maximum download speeds reach 90% Gigabit. Ultrafast coverage is at 89.5%.

What is the average house price near MK18 3SJ?

The average property price at MK18 3SJ is £443,375, based on 6 recorded transactions.

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

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

What schools are nearby in the MK18 3SJ area?

The nearest school is Sir Thomas Fremantle School (Secondary), 0.33 miles away. There are 5 schools within a few miles.

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

22 offences were recorded in this LSOA area in the latest month. This is a moderate level.

How suitable is MK18 3SJ for remote working?

MK18 3SJ scores 70/100 for remote working suitability. Broadband is adequate for most remote tasks.

What is the mobile signal like at MK18 3SJ?

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

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

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

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

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

How accessible are GP surgeries near MK18 3SJ?

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

What transport links are available near MK18 3SJ?

The nearest train station to MK18 3SJ is Stockport, 114.1 miles away. Ashton-under-Lyne is also nearby.

Is MK18 3SJ a suitable area for families?

MK18 3SJ scores 75/100 for family suitability. The area offers a reasonable mix of schools and safety.

What is the air quality like at MK18 3SJ?

Air quality at MK18 3SJ is rated Fair. PM2.5 levels are 1.5 micrograms per cubic metre. Sensitive individuals should take note.

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

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

Can I get full fibre broadband at MK18 3SJ?

Ultrafast broadband (100 Mbps+) reaches 89.5% of premises. Check Openreach and local operators for FTTP availability.

Area suitability scores

MK18 3SJ

Remote Worker

70

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

Family

75

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

Winslow

District

Buckinghamshire

Region

Constituency

LSOA

E01017736

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