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SS99

Postcode district

Postcode district covering Southend-on-Sea, Prittlewell and Southchurch, in Southend-on-Sea.

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

Open in map

Radon Affected Area by postcode district

Worked out by Open Index · 2022

Under 1%90% or more

About 0% of people in SS99 live in a 1 km square that the radon atlas marks as a radon Affected Area.

Population
567
131st least populated of 2,756
ONS Census 2021 · 2021
People in radon Affected Area squares
0%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
56.5%
UK 87.8%
Ofcom · Jan 2026
Aged 15 to 64
73.9%
Joint 188th highest of 2,756
ONS Census 2021 · 2021

How SS99 compares

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

SS99Middle
Population18 postcode districts, SS · 2021
Population: every postcode district in SS18 areas from 567 to 50,629. The middle area is 30,630. SS99 is 567.
567least populated
People in radon Affected Area squares18 postcode districts, SS · 2022
People in radon Affected Area squares: every postcode district in SS18 areas from 0.0% to 27.0%. The middle area is 0.0%. SS99 is 0.0%.
0%joint fewest people in radon Affected Areas
Gigabit broadband coverage18 postcode districts, SS · Jan 2026
Gigabit broadband coverage: every postcode district in SS18 areas from 56.5% to 98.7%. The middle area is 93.2%. SS99 is 56.5%.
56.5%lowest
Aged 15 to 6418 postcode districts, SS · 2021
Aged 15 to 64: every postcode district in SS18 areas from 58.2% to 73.9%. The middle area is 62.5%. SS99 is 73.9%.
73.9%highest

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.

MPs for SS99

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

Postcode sectors in SS995

Council1

Postcode districts next to SS992

Nearest rail stations4

More in the SS postcode area2

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.