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CT15

Postcode district

Postcode district covering St Margaret's at Cliffe and Sibertswold, in Dover.

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 CT15 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 100% of people in CT15 live in a 1 km square that the radon atlas marks as a radon Affected Area.

Median sale price
£347,500
Joint 820th most expensive of 2,235
Worked out by Open Index
Population
13,182
908th least populated of 2,756
ONS Census 2021 · 2021
People in radon Affected Area squares
100%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
34.3%
UK 87.8%
Ofcom · Jan 2026

How CT15 compares

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

CT15Middle
Median sale price21 postcode districts, CT · 2025
Median sale price: every postcode district in CT21 areas from £210,000 to £395,000. The middle area is £315,000. CT15 is £347,500.
£347,5006th most expensive
Population21 postcode districts, CT · 2021
Population: every postcode district in CT21 areas from 7,871 to 46,520. The middle area is 22,101. CT15 is 13,182.
13,1824th least populated
People in radon Affected Area squares21 postcode districts, CT · 2022
People in radon Affected Area squares: every postcode district in CT21 areas from 0.0% to 100.0%. The middle area is 54.0%. CT15 is 100.0%.
100%joint most people in radon Affected Areas
Gigabit broadband coverage21 postcode districts, CT · Jan 2026
Gigabit broadband coverage: every postcode district in CT21 areas from 34.3% to 96.3%. The middle area is 80.4%. CT15 is 34.3%.
34.3%lowest

Is CT15 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in CT15 at a rate of 60.5 per 1,000 people.

That compares with 102.8 per 1,000 people across the CT postcode area.

In August 2026 alone, 103 cases of crime and anti-social behaviour were recorded in CT15.

In the 12 months to August 2026, the most common types were violence and sexual offences (296), anti-social behaviour (180) and other crime (138).

A year earlier, the recorded crime rate in CT15 was 48.9 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.

Deprivation in CT15, neighbourhood by neighbourhood

  • Deprivation is ranked by neighbourhood, so CT15 has no single figure. Of its 9 neighbourhoods with a rank:
  • Decile 3: 1 neighbourhood
  • Decile 4: 2 neighbourhoods
  • Decile 5: 3 neighbourhoods
  • Decile 6: 1 neighbourhood
  • Decile 7: 2 neighbourhoods

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

Neighbourhoods in CT15

NamePeople (census)Recorded crime per 1,000Deprivation decileGigabit broadband
Dover 006A1,52542.0 per 1,000540.2%
Dover 006D1,63454.9 per 1,000374.7%
Dover 008A1,67650.7 per 1,000451.2%
Dover 008B1,60164.5 per 1,000737.8%
Dover 008C1,54261.4 per 1,000495.9%
Dover 009B1,73563.3 per 1,000512.1%
Dover 009C1,56953.5 per 1,00077.6%
Dover 012B1,97237.7 per 1,00059.6%
Dover 014D1,39857.4 per 1,000640.4%

MPs for CT15

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 CT151

Postcode sectors in CT154

Council1

Postcode districts next to CT157

Nearest rail stations4

More in the CT postcode area2

CT15 in brief

CT15 is a postcode district covering St Margaret's at Cliffe and Sibertswold, in Dover.

About 13,378 people lived in CT15 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £347,500 in 2025 across 169 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 60.5 per 1,000 people in the 12 months to August 2026 (police.uk).

The median price paid for a home in CT15 was £347,500 in 2025.

CT15 had 13,182 usual residents at the census.

About 100% of people in CT15 live in a 1 km square that the radon atlas marks as a radon Affected Area.

In CT15, 34.3% of homes and businesses could get gigabit-capable broadband in January 2026.