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SE21

Postcode district

Postcode district covering West Dulwich and Dulwich Village, in Southwark and Lambeth.

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 SE21 postcode. How census figures are added up

Open in map

Gigabit coverage by postcode district

Connected Nations (Ofcom) · January 2026

Under 60%98% or more

In SE21, 90.5% of homes and businesses could get gigabit-capable broadband in January 2026.

Median sale price
£724,000
66th most expensive of 2,235
Worked out by Open Index
Population
14,817
1,003rd least populated of 2,756
ONS Census 2021 · 2021
Gigabit broadband coverage
90.5%
UK 87.8%
Ofcom · Jan 2026
Claimant rate
4.6%
UK 3.9%
ONS via Nomis · Aug 2026

How SE21 compares

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

SE21Middle
Median sale price28 postcode districts, SE · 2025
Median sale price: every postcode district in SE28 areas from £355,000 to £724,000. The middle area is £478,950. SE21 is £724,000.
£724,000most expensive
Population29 postcode districts, SE · 2021
Population: every postcode district in SE29 areas from 211 to 85,333. The middle area is 30,914. SE21 is 14,817.
14,8172nd least populated
Gigabit broadband coverage29 postcode districts, SE · Jan 2026
Gigabit broadband coverage: every postcode district in SE29 areas from 43.8% to 96.6%. The middle area is 90.5%. SE21 is 90.5%.
90.5%15th highest
Claimant rate28 postcode districts, SE · Aug 2026
Claimant rate: every postcode district in SE28 areas from 3.6% to 8.2%. The middle area is 6.1%. SE21 is 4.6%.
4.6%joint 4th lowest

Is SE21 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SE21 at a rate of 81.1 per 1,000 people.

That compares with 133.0 per 1,000 people across SE.

In August 2026 alone, 116 cases of crime and anti-social behaviour were recorded in SE21.

In the 12 months to August 2026, the most common types were violence and sexual offences (278), other crime (203) and vehicle crime (194).

A year earlier, the recorded crime rate in SE21 was 87.9 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 SE21, neighbourhood by neighbourhood

  • Deprivation is ranked by neighbourhood, so SE21 has no single figure. Of its 9 neighbourhoods with a rank:
  • Decile 2: 1 neighbourhood
  • Decile 4: 1 neighbourhood
  • Decile 5: 1 neighbourhood
  • Decile 7: 3 neighbourhoods
  • Decile 8: 2 neighbourhoods
  • Decile 9: 1 neighbourhood

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

Neighbourhoods in SE21

NamePeople (census)Recorded crime per 1,000Deprivation decileGigabit broadband
Lambeth 025A2,247107.4 per 1,000492.3%
Lambeth 025B1,64364.9 per 1,000596.0%
Lambeth 025E1,908110.1 per 1,000890.0%
Lambeth 028A1,46268.8 per 1,000795.5%
Southwark 031A1,29494.8 per 1,000953.0%
Southwark 031E1,71383.6 per 1,000897.6%
Southwark 033B1,90051.4 per 1,000798.6%
Southwark 033C1,60884.1 per 1,000297.6%
Southwark 033E1,48898.2 per 1,000786.8%

Your MP

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 SE212

Postcode sectors in SE213

Councils SE21 covers2

Towns in SE212

Postcode districts next to SE215

Nearest rail stations4

More in the SE postcode area2

SE21 in brief

SE21 is a postcode district covering West Dulwich and Dulwich Village, in Southwark and Lambeth.

About 14,480 people lived in SE21 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £724,000 in 2025 across 167 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 81.1 per 1,000 people in the 12 months to August 2026 (police.uk).

The median price paid for a home in SE21 was £724,000 in 2025.

SE21 had 14,817 usual residents at the census.

In SE21, 90.5% of homes and businesses could get gigabit-capable broadband in January 2026.

In SE21, 4.6% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.