SS
Postcode areaPostcode area named after Southend-on-Sea, with 19 districts.
Approximate outline worked out by Open Index from the ONS Postcode Directory: the outline joins its districts’ outlines, each made of the census output areas that hold most of the district’s postcodes.
Radon Affected Area by postcode area
Worked out by Open Index · 2022
About 2% of people in SS live in a 1 km square that the radon atlas marks as a radon Affected Area.
How SS compares
Each dot is a postcode area. The black line marks the middle one.
Every postcode area ranked: median sale price, population, people in radon affected area squares and gigabit broadband coverage.
Is SS safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SS at a rate of 91.5 per 1,000 people.
In August 2026 alone, 4,871 cases of crime and anti-social behaviour were recorded in SS.
In the 12 months to August 2026, the most common types were violence and sexual offences (21,283), other crime (8,349) and anti-social behaviour (6,545).
A year earlier, the recorded crime rate in SS was 86.9 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.
Postcode districts in SS
| Name | People (census) | Median sale price | Recorded crime per 1,000 |
|---|---|---|---|
| SS0Southend-on-Sea, Westcliff-on-Sea | 43,443 | £315,000 | 106.5 per 1,000 |
| SS1Southend-on-Sea, Southchurch | 28,502 | £360,500 | 237.7 per 1,000 |
| SS2Southend-on-Sea, Prittlewell | 37,833 | £316,000 | 127.9 per 1,000 |
| SS3Shoeburyness, North Shoebury | 28,925 | £350,000 | 76.5 per 1,000 |
| SS4Rochford, Ashingdon | 21,938 | £370,000 | 65.1 per 1,000 |
| SS5Hockley, Hawkwell | 22,783 | £449,586 | 35.7 per 1,000 |
| SS6Rayleigh, The Birches | 32,382 | £422,000 | 53.7 per 1,000 |
| SS7Thundersley, Hadleigh | 50,629 | £400,000 | 48.0 per 1,000 |
| SS8Canvey Island, Leigh Beck | 38,323 | £320,000 | 82.1 per 1,000 |
| SS9Leigh-on-Sea, Eastwood | 50,309 | £409,000 | 49.6 per 1,000 |
| SS11Wickford, Runwell | 18,985 | £400,000 | 64.9 per 1,000 |
| SS12Wickford, Nevendon | 18,734 | £370,000 | 85.2 per 1,000 |
| SS13Basildon, Felmore | 22,975 | £310,000 | 149.1 per 1,000 |
| SS14Basildon, Fryerns | 28,710 | £325,000 | 167.9 per 1,000 |
| SS15Basildon, Laindon | 34,218 | £342,000 | 82.2 per 1,000 |
| SS16Basildon, Kingswood | 32,334 | £355,000 | 96.8 per 1,000 |
| SS17Stanford-le-Hope, Horndon on the Hill | 33,636 | £365,000 | 64.2 per 1,000 |
| SS22Prittlewell | No figure | No figure | No figure |
| SS99Southend-on-Sea, Prittlewell | 567 | No figure | 130.5 per 1,000 |
SS in brief
The SS postcode area, named after Southend-on-Sea, has 19 postcode districts.
The median price paid for a home in SS was £365,000 in 2025.
SS had 545,226 usual residents at the census.
About 2% of people in SS live in a 1 km square that the radon atlas marks as a radon Affected Area.
In SS, 93.3% of homes and businesses could get gigabit-capable broadband in January 2026.