# SS99 Postcode district covering Southend-on-Sea, Prittlewell and Southchurch, in Southend-on-Sea. SS99 is a postcode district covering Southend-on-Sea, Prittlewell and Southchurch, in Southend-on-Sea. Recorded crime 130.5 per 1,000 people. About 590 people. Postcode district. Code SS99. In: [Postcodes](https://openindex.co.uk/postcode) › [SS](https://openindex.co.uk/postcode/ss) 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 SS99 postcode. [How census figures are added up](https://openindex.co.uk/sources/population) ## Key figures - **Population: 567** (2021). SS99 had 567 usual residents at the census (ONS Census 2021). 131st least populated of 2,756. Source: Census 2021, England and Wales and Scotland's Census 2022 and Census 2021, Northern Ireland, 2021. Published 21 July 2026. https://openindex.co.uk/postcode/ss99#f-population - **People in radon Affected Area squares: 0%** (2022). About 0% of people in SS99 live in a 1 km square that the radon atlas marks as a radon Affected Area. UK 44%. Source: Worked out by Open Index from the UKHSA and BGS radon atlas and census output areas. Published 1 December 2022. https://openindex.co.uk/postcode/ss99#f-radon-affected-share - **Gigabit broadband coverage: 56.5%** (January 2026). In SS99, 56.5% of homes and businesses could get gigabit-capable broadband in January 2026 (Ofcom). UK 87.8%. Source: Connected Nations (Ofcom), January 2026. Published 13 May 2026. https://openindex.co.uk/postcode/ss99#f-gigabit-coverage - **Aged 15 to 64: 73.9%** (2021). 73.9% of residents in SS99 were aged 15 to 64 at the census (ONS Census 2021). Joint 188th highest of 2,756. Source: Census 2021, England and Wales and Scotland's Census 2022 and Census 2021, Northern Ireland, 2021. Published 21 July 2026. https://openindex.co.uk/postcode/ss99#f-age-15-to-64 ## On the map - [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas?place=SS99) (Worked out by Open Index · 2022): About 0% of people in SS99 live in a 1 km square that the radon atlas marks as a radon Affected Area. - [Sales per year by postcode district](https://openindex.co.uk/map/house-sales-per-year?place=SS99) (Worked out by Open Index · 2025): 0 homes were sold in SS99 in 2025. - [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime?place=SS99) (Police recorded crime and outcomes (data.police.uk) · August 2026): Police recorded 8 crimes and anti-social behaviour incidents in SS99 in August 2026. - [Population by postcode district](https://openindex.co.uk/map/population?place=SS99) (Census 2021, England and Wales): SS99 had 567 usual residents at the census. ## How SS99 compares Each postcode district against every other postcode district the measure covers. | Measure | SS99 | Rank | Compared with | | --- | --- | --- | --- | | Population | 567 | least populated | 18 postcode districts, SS · 2021 | | People in radon Affected Area squares | 0% | joint fewest people in radon Affected Areas | 18 postcode districts, SS · 2022 | | Gigabit broadband coverage | 56.5% | lowest | 18 postcode districts, SS · Jan 2026 | | Aged 15 to 64 | 73.9% | highest | 18 postcode districts, SS · 2021 | ## Is SS99 safe? What police records show In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SS99 at a rate of 130.5 per 1,000 people. That compares with 91.5 per 1,000 people across the SS postcode area. In August 2026 alone, 8 cases of crime and anti-social behaviour were recorded in SS99. In the 12 months to August 2026, the most common types were violence and sexual offences (19), criminal damage and arson (15) and shoplifting (13). A year earlier, the recorded crime rate in SS99 was 108.5 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. ## Your MP - [Southend West and Leigh](https://openindex.co.uk/constituency/southend-west-and-leigh): David Burton-Sampson (Labour), MP since July 2024. 61% of the people here. - [Southend East and Rochford](https://openindex.co.uk/constituency/southend-east-and-rochford): Mr Bayo Alaba (Independent), MP since July 2024. 39% of the people here. As of 18 October 2026. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API. ## Postcode sectors in SS99 [SS99 1 (8 postcodes)](https://openindex.co.uk/postcode/ss99-1), [SS99 3 (1 postcode)](https://openindex.co.uk/postcode/ss99-3), [SS99 5 (1 postcode)](https://openindex.co.uk/postcode/ss99-5), [SS99 6 (35 postcodes)](https://openindex.co.uk/postcode/ss99-6), [SS99 9 (39 postcodes)](https://openindex.co.uk/postcode/ss99-9) ## Council [Southend-on-Sea](https://openindex.co.uk/southend-on-sea) ## Postcode districts next to SS99 [SS1](https://openindex.co.uk/postcode/ss1), [SS2](https://openindex.co.uk/postcode/ss2) ## Nearest rail stations [Prittlewell (750 m from the middle)](https://openindex.co.uk/map/rail-stations?around=0.7107,51.5507), [Southend Airport (1.3 km from the middle)](https://openindex.co.uk/map/rail-stations?around=0.7050,51.5687), [Southend Victoria (1.7 km from the middle)](https://openindex.co.uk/map/rail-stations?around=0.7115,51.5415), [Southend Central (2.2 km from the middle)](https://openindex.co.uk/map/rail-stations?around=0.7117,51.5371) ## More in the SS postcode area [All SS postcode districts](https://openindex.co.uk/postcode/ss), [Every UK postcode area](https://openindex.co.uk/postcode) ## SS99 in brief SS99 is a postcode district covering Southend-on-Sea, Prittlewell and Southchurch, in Southend-on-Sea. About 590 people lived in SS99 in mid-2024 (worked out by Open Index from ONS small-area estimates); police recorded crimes and anti-social behaviour at a rate of 130.5 per 1,000 people in the 12 months to August 2026 (police.uk). SS99 had 567 usual residents at the census. About 0% of people in SS99 live in a 1 km square that the radon atlas marks as a radon Affected Area. In SS99, 56.5% of homes and businesses could get gigabit-capable broadband in January 2026. 73.9% of residents in SS99 were aged 15 to 64 at the census. ## About - Type: Postcode district - Code: SS99 - Postcode area: [SS](https://openindex.co.uk/postcode/ss) - Constituency: [Southend West and Leigh †](https://openindex.co.uk/constituency/southend-west-and-leigh) - Council: [Southend-on-Sea †](https://openindex.co.uk/southend-on-sea) - Area: 0.09 km² - People, mid-2024: 590* - Output areas: 2 * People: worked out by Open Index from neighbourhood estimates, shared out by where people lived at the census (by area in Northern Ireland). This area's edges do not follow neighbourhood edges, so the figure is close but not exact. † Best fit: the constituency, council, region and nation this postcode district mostly lies in. Its edges do not follow theirs. ## Next door [SS2](https://openindex.co.uk/postcode/ss2), [SS1](https://openindex.co.uk/postcode/ss1) ## Latest updates for SS99 - August 2026 house prices published: HM Land Registry and partners · Oct 2026. - September 2026 rent published: ONS private rents · Oct 2026. - Dental practices updated: NHS England · Oct 2026. - Schools updated: Ofsted · Oct 2026. The same figures as JSON: https://openindex.co.uk/v1/places/SS99 ## How to cite Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/ss99, or to one figure with its anchor, https://openindex.co.uk/postcode/ss99#f-population. Open Index's own text and the figures it works out are licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source data keeps its publishers' licences, named with each figure. Give each figure's period and source with it. Snapshot 2026.10.9. The HTML page: https://openindex.co.uk/postcode/ss99