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BN25

Postcode district

Postcode district covering Seaford, Sutton and East Blatchington, in Lewes.

Approximate outline worked out by Open Index from the ONS Postcode Directory: each census output area belongs to the district that holds most of its postcodes. People, homes, recorded crime and broadband add up those output areas. House sales count every sale with an BN25 postcode. How census figures are added up

Open in map

Gigabit coverage by postcode district

Connected Nations (Ofcom) · January 2026

Under 60%98% or more

In BN25, 78.6% of homes and businesses could get gigabit-capable broadband in January 2026.

Median sale price
£370,000
700th most expensive of 2,235
Worked out by Open Index
Population
23,865
1,235th most populated of 2,756
ONS Census 2021 · 2021
Gigabit broadband coverage
78.6%
UK 87.8%
Ofcom · Jan 2026
Claimant rate
3.0%
UK 3.9%
ONS via Nomis · Aug 2026

How BN25 compares

Each dot is a postcode district. The black line marks the middle one.

BN25Middle
Median sale price29 postcode districts, BN · 2025
Median sale price: every postcode district in BN29 areas from £230,000 to £560,000. The middle area is £370,000. BN25 is £370,000.
£370,000joint 14th cheapest
Population33 postcode districts, BN · 2021
Population: every postcode district in BN33 areas from 317 to 94,706. The middle area is 21,877. BN25 is 23,865.
23,86515th most populated
Gigabit broadband coverage33 postcode districts, BN · Jan 2026
Gigabit broadband coverage: every postcode district in BN33 areas from 46.2% to 98.6%. The middle area is 84.6%. BN25 is 78.6%.
78.6%10th lowest
Claimant rate29 postcode districts, BN · Aug 2026
Claimant rate: every postcode district in BN29 areas from 1.8% to 5.8%. The middle area is 3.3%. BN25 is 3.0%.
3.0%13th lowest

Is BN25 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in BN25 at a rate of 47.7 per 1,000 people.

That compares with 101.8 per 1,000 people across BN.

In August 2026 alone, 117 cases of crime and anti-social behaviour were recorded in BN25.

In the 12 months to August 2026, the most common types were violence and sexual offences (435), anti-social behaviour (258) and other crime (191).

A year earlier, the recorded crime rate in BN25 was 52.0 per 1,000 people.

Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.

Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.

Deprivation in BN25, neighbourhood by neighbourhood

  • Deprivation is ranked by neighbourhood, so BN25 has no single figure. Of its 15 neighbourhoods with a rank:
  • Decile 4: 3 neighbourhoods
  • Decile 6: 3 neighbourhoods
  • Decile 7: 1 neighbourhood
  • Decile 8: 2 neighbourhoods
  • Decile 9: 4 neighbourhoods
  • Decile 10 (England’s least deprived 10%): 2 neighbourhoods

English Indices of Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in England.

Neighbourhoods in BN25

NamePeople (census)Recorded crime per 1,000Deprivation decileGigabit broadband
Lewes 011A1,54421.1 per 1,000980.8%
Lewes 011B1,83425.8 per 1,000774.7%
Lewes 011C1,49323.8 per 1,000978.4%
Lewes 011D1,57246.2 per 1,000879.6%
Lewes 011E1,60930.7 per 1,000978.5%
Lewes 011F1,29011.9 per 1,0001094.7%
Lewes 012A1,57022.8 per 1,0001080.9%
Lewes 012B1,44932.4 per 1,000877.6%
Lewes 012C1,75755.4 per 1,000480.0%
Lewes 012D1,87946.5 per 1,000482.5%
Lewes 012E1,37929.3 per 1,000988.3%
Lewes 013A1,62142.7 per 1,000688.6%
Lewes 013B1,858151.8 per 1,000455.0%
Lewes 013C1,50684.4 per 1,000678.3%
Lewes 013D1,50365.0 per 1,000683.3%

Your MP

As of , from the UK Parliament Members API. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

Middle areas in BN253

Postcode sectors in BN255

Council1

Towns in BN251

Postcode districts next to BN252

Nearest rail stations4

More in the BN postcode area2

BN25 in brief

BN25 is a postcode district covering Seaford, Sutton and East Blatchington, in Lewes.

About 23,907 people lived in BN25 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £370,000 in 2025 across 458 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 47.7 per 1,000 people in the 12 months to August 2026 (police.uk).

The median price paid for a home in BN25 was £370,000 in 2025.

BN25 had 23,865 usual residents at the census.

In BN25, 78.6% of homes and businesses could get gigabit-capable broadband in January 2026.

In BN25, 3.0% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.