PO21 postcode

Broadband in PO21 3LW

Aldwick, Arun

Gigabit broadband is available at this postcode.

Best speedGigabit (1Gbps+)
StandardSuperfastGigabit
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Free, independent comparison · Ofcom verified data · Updated 22 March 2026

Flood Risk

Medium

Fibre (FTTP)

No

Best speed

Gigabit (1Gbps+)

Reviewed by Sage MitchellData last verified: 22 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 (Gigabit (1Gbps+)) is available at PO21 3LW. 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 PO21 3LW.

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)97%
97%
10-20 Mbps
Superfast (30+ Mbps)97%
97%
30-80 Mbps
Ultrafast (100+ Mbps)3%
3%
100-300 Mbps
Full Fibre (FTTP)0%
0%
300-900 Mbps
Gigabit3%
3%
900-1,000 Mbps

Speed Distribution at PO21 3LW

30–300 Mbps (94%)
300+ Mbps (3%)

Source: Ofcom Connected Nations 2025

Mobile coverage

4G & 5G coverage · Ofcom Connected Nations 2025

4G Outdoor

95%

4G Indoor

85%

5G Outdoor

%

Networks with 4G

EEO2ThreeVodafone
Ofcom Connected Nations 2025

Schools nearby

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

Schools data is currently unavailable.

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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

Environment Agency

Air quality

Particulate matter & nitrogen dioxide levels

air quality

Air quality data not available.

PM2.5 (fine particles) 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

DEFRA UK-AIR · Guidelines: WHO 2021

Transport links

Nearest train stations and towns

Nearest train stations

No train stations found within 15 miles

Network Rail / National Rail · Straight-line distances

Council tax bands

Band distribution for Arun

Most common: Band

A
5%£1,381
B
10%£1,611
C
20%£1,841
D
25%£2,071
E
20%£2,531
F
10%£2,991
G
8%£3,452
H
2%£4,142

Annual council tax estimates for , 2024/25

VOA (Valuation Office Agency)

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Living near PO21 3LW

PO21 3LW sits in Aldwick, part of Arun. 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.

97.2% of premises at PO21 3LW can access superfast broadband. The UK average is 93%. This postcode meets or exceeds that benchmark. Ultrafast broadband (100 Mbps+) reaches 2.8% of properties. Fewer than half of homes here can get ultrafast speeds. Gigabit-capable connections cover 2.8% of premises. Gigabit is available but not yet widespread at this postcode.

Here is how broadband speeds break down across premises at PO21 3LW. 94.4% of connections fall in the 30 to 300 Mbps range. 2.8% 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.

What do the broadband speeds at PO21 3LW mean in practice? Most premises have superfast speeds. Remote working with video calls and cloud tools should be manageable for most households.

FWA broadband has not reached PO21 3LW 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 PO21 3LW, 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 97.2% of the area. NGA typically means speeds of 24 Mbps or above.

Flood risk at PO21 3LW 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 PO21 3LW 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 PO21 3LW: remote working 50/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.

The local authority for PO21 3LW is Arun. The immediate area is Aldwick, a distinct community within the wider district. The PO21 postcode area contains 1334 postcodes on this site. Superfast broadband across PO21 ranges from 0% to 100%. PO21 3LW is close to the area average of 99%.

How does PO21 3LW compare to its neighbours? PO21 3LN (0.04 miles, aldwick) has 100% superfast coverage and 15.4% gigabit. PO21 3LX (0.04 miles, aldwick) has 100% superfast coverage and 100% gigabit. PO21 3NT (0.06 miles, pagham) has 100% superfast coverage and 100% gigabit. Coverage is broadly similar across these neighbouring postcodes.

When choosing a broadband provider at PO21 3LW, 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.

Aldwick offers a mix of residential properties and local amenities. The character of any area is best judged in person.

What does all of this mean for someone considering PO21 3LW? Connectivity at PO21 3LW is a strength. Strong broadband coverage gives flexibility for both working and leisure. The area scores well on that front. Arun 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. Aldwick 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 PO21 3LW. 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.

PO21 3LW in Aldwick: broadband, house prices, crime, schools, and more. All from verified sources. Run a speed test above for a live reading. Compare with nearby postcodes to see how this area stacks up against its neighbours.

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 PO21 3LW

What are the broadband speeds available at PO21 3LW?

Superfast broadband (30 Mbps+) is available to 97.2% of premises at PO21 3LW. Ultrafast coverage is at 2.8%.

What is the average house price near PO21 3LW?

No recent house price data is available for PO21 3LW.

What is the flood risk for properties at PO21 3LW?

PO21 3LW has a Medium flood risk rating. Check Environment Agency maps for detail.

What schools are nearby in the PO21 3LW area?

School data for PO21 3LW is being updated. Check the Get Information About Schools service for the latest.

How does crime rate in PO21 3LW compare to other areas?

Crime data for this area is being updated.

How suitable is PO21 3LW for remote working?

PO21 3LW scores 50/100 for remote working suitability. Speeds may limit video-heavy workflows.

What is the mobile signal like at PO21 3LW?

4G outdoor coverage at PO21 3LW is 95%. Indoor coverage may be lower.

What is the most common energy efficiency rating near PO21 3LW?

EPC data for PO21 3LW is being updated. Check the EPC register for individual property ratings.

What is the council tax band distribution at PO21 3LW?

Council tax band information for PO21 3LW is being updated.

How accessible are GP surgeries near PO21 3LW?

GP surgery data for PO21 3LW is being updated. Check NHS.uk for the latest.

What transport links are available near PO21 3LW?

Transport data for PO21 3LW is being updated.

Is PO21 3LW a suitable area for families?

PO21 3LW scores 50/100 for family suitability. Check school and crime sections above for detail.

What is the air quality like at PO21 3LW?

Air quality data for PO21 3LW is being updated.

How far is the nearest EV charging point from PO21 3LW?

EV charging data for PO21 3LW is being updated. Check Zap-Map for the latest.

Can I get full fibre broadband at PO21 3LW?

Ultrafast broadband (100 Mbps+) reaches 2.8% of premises. Check Openreach and local operators for FTTP availability.

Area suitability scores

PO21 3LW

Remote Worker

50

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

Family

50

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

Aldwick

District

Arun

Region

Constituency

LSOA

E01031385

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