Compare

Seaford South

Ward

South east Lewes. About 4,345 people (mid-2024 estimate) in 2.2 square kilometres.

Open in map

Radon Affected Area by ward

Worked out by Open Index · 2022

Under 1%90% or more

About 100% of people in Seaford South live in a 1 km square that the radon atlas marks as a radon Affected Area.

Population
4,389
Joint 2,230th least populated of 8,397
ONS Census 2021 · 2021
People in radon Affected Area squares
100%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
82.8%
UK 87.8%
Ofcom · Jan 2026
Claimant rate
3.5%
UK 3.9%
ONS via Nomis · Aug 2026

How Seaford South compares

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

Seaford SouthMiddle
Population21 wards, Lewes · 2021
Population: every ward in Lewes21 areas from 1,905 to 7,919. The middle area is 4,871. Seaford South is 4,389.
4,3897th least populated
People in radon Affected Area squares21 wards, Lewes · 2022
People in radon Affected Area squares: every ward in Lewes21 areas from 0.0% to 100.0%. The middle area is 100.0%. Seaford South is 100.0%.
100%joint most people in radon Affected Areas
Gigabit broadband coverage21 wards, Lewes · Jan 2026
Gigabit broadband coverage: every ward in Lewes21 areas from 21.1% to 95.0%. The middle area is 79.5%. Seaford South is 82.8%.
82.8%joint 6th highest
Claimant rate21 wards, Lewes · Aug 2026
Claimant rate: every ward in Lewes21 areas from 1.3% to 6.6%. The middle area is 3.0%. Seaford South is 3.5%.
3.5%joint 8th highest

Is Seaford South safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Seaford South at a rate of 60.5 per 1,000 people.

That compares with 73.1 per 1,000 people across Lewes.

Across England as a whole, the recorded crime rate was 96.3 per 1,000 people.

In August 2026 alone, 29 cases of crime and anti-social behaviour were recorded in Seaford South.

In the 12 months to August 2026, the most common types were violence and sexual offences (101), anti-social behaviour (57) and other crime (37).

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.

Figures for the whole of Lewes

These figures are published for the whole of Lewes, not for each ward, so they describe all of Lewes and not Seaford South alone. See Lewes

Average house price
£368,408
Up 0.8% in a year
HM Land Registry · Jul 2026
Median full-time pay
£40,807
124th highest paid of 348
ONS earnings survey · 2025
House price to pay
9.0×
Joint 87th least affordable of 348
Worked out by Open Index
Deprivation score
16.8
Joint 121st least deprived of 296
MHCLG · England only
Seaford South in brief

Seaford South had 4,389 usual residents at the census.

About 100% of people in Seaford South live in a 1 km square that the radon atlas marks as a radon Affected Area.

In Seaford South, 82.8% of homes and businesses could get gigabit-capable broadband in January 2026.

In Seaford South, 3.5% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.