PO21 postcode

Broadband in PO21 4BH

Aldwick, Arun

Standard broadband is the main option at this postcode.

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Free, independent comparison · Ofcom verified data · Updated 28 March 2026

Flood Risk

Medium

Fibre (FTTP)

No

Best speed

Data pending

Reviewed by Sage MitchellData last verified: 28 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

Your household needs approximately 14 Mbps. We don't have speed data for PO21 4BH yet.

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Speed Test

Check your current download speed and see how it compares to what is available at PO21 4BH.

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)0%
0%
10-20 Mbps
Superfast (30+ Mbps)0%
0%
30-80 Mbps
Ultrafast (100+ Mbps)0%
0%
100-300 Mbps
Full Fibre (FTTP)0%
0%
300-900 Mbps
Gigabit0%
0%
900-1,000 Mbps

Speed Distribution at PO21 4BH

10–30 Mbps (100%)

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 4BH

PO21 4BH 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.

0% of premises at PO21 4BH can access superfast broadband. The UK average is 93%. There is room for improvement here.

The speed distribution at PO21 4BH tells a more detailed story than headline figures alone. 100% of connections fall in the 10 to 30 Mbps 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 4BH mean in practice? With no superfast coverage, streaming is limited. Standard definition video may work, but HD and 4K are unlikely to run smoothly. Downloading large files will take significantly longer than average. Limited superfast coverage means remote workers should test their connection carefully. Video calls may drop or pixelate. A mobile hotspot can serve as a backup.

Fixed Wireless Access is not currently available at PO21 4BH. For properties without fibre, 4G or 5G home broadband from Three, EE, or Vodafone may be an alternative.

0% of premises at PO21 4BH 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 PO21 4BH 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 4BH 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 4BH: remote working 50/100, family 50/100, value 50/100. Remote workers may want to verify actual speeds before committing.

PO21 4BH falls within the Arun local authority area. 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%.

How does PO21 4BH compare to its neighbours? PO21 4BQ (0.05 miles, aldwick) has 13% superfast coverage and 8.7% gigabit.

Not every property at PO21 4BH gets the same speeds. Run a postcode check with each provider before signing up. Headline speeds are not guarantees. 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.

Looking at the overall picture for PO21 4BH, a few things are worth highlighting. Broadband is the main concern at PO21 4BH. With no superfast coverage, check what alternatives exist before committing. 4G home broadband, satellite, or community fibre schemes may fill the gap. 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.

Data is a starting point for Aldwick. 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.

PO21 4BH 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 4BH

What are the broadband speeds available at PO21 4BH?

Broadband is available at PO21 4BH. Contact local providers for specific speed information.

What is the average house price near PO21 4BH?

No recent house price data is available for PO21 4BH.

What is the flood risk for properties at PO21 4BH?

PO21 4BH has a Medium flood risk rating. Check Environment Agency maps for detail.

What schools are nearby in the PO21 4BH area?

School data for PO21 4BH is being updated. Check the Get Information About Schools service for the latest.

How does crime rate in PO21 4BH compare to other areas?

Crime data for this area is being updated.

How suitable is PO21 4BH for remote working?

PO21 4BH scores 50/100 for remote working suitability. Speeds may limit video-heavy workflows.

What is the mobile signal like at PO21 4BH?

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

What is the most common energy efficiency rating near PO21 4BH?

EPC data for PO21 4BH is being updated. Check the EPC register for individual property ratings.

What is the council tax band distribution at PO21 4BH?

Council tax band information for PO21 4BH is being updated.

How accessible are GP surgeries near PO21 4BH?

GP surgery data for PO21 4BH is being updated. Check NHS.uk for the latest.

What transport links are available near PO21 4BH?

Transport data for PO21 4BH is being updated.

Is PO21 4BH a suitable area for families?

PO21 4BH scores 50/100 for family suitability. Check school and crime sections above for detail.

What is the air quality like at PO21 4BH?

Air quality data for PO21 4BH is being updated.

How far is the nearest EV charging point from PO21 4BH?

EV charging data for PO21 4BH is being updated. Check Zap-Map for the latest.

Can I get full fibre broadband at PO21 4BH?

Full fibre availability at PO21 4BH is being updated. Check Openreach for the latest rollout status.

Area suitability scores

PO21 4BH

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

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Area info

Parish

Aldwick

District

Arun

Region

Constituency

LSOA

E01031385

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