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N20

Postcode district

Postcode district covering Whetstone, Oakleigh Park and Totteridge, in Barnet.

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 N20 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 N20, 79.2% of homes and businesses could get gigabit-capable broadband in January 2026.

Median sale price
£734,400
62nd most expensive of 2,235
Worked out by Open Index
Population
20,430
1,320th least populated of 2,756
ONS Census 2021 · 2021
Gigabit broadband coverage
79.2%
UK 87.8%
Ofcom · Jan 2026
Claimant rate
3.6%
UK 3.9%
ONS via Nomis · Aug 2026

How N20 compares

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

N20Middle
Median sale price23 postcode districts, N · 2025
Median sale price: every postcode district in N23 areas from £400,000 to £1,015,000. The middle area is £600,000. N20 is £734,400.
£734,4003rd most expensive
Population24 postcode districts, N · 2021
Population: every postcode district in N24 areas from 542 to 92,400. The middle area is 32,898. N20 is 20,430.
20,4304th least populated
Gigabit broadband coverage24 postcode districts, N · Jan 2026
Gigabit broadband coverage: every postcode district in N24 areas from 76.9% to 98.2%. The middle area is 91.2%. N20 is 79.2%.
79.2%2nd lowest
Claimant rate23 postcode districts, N · Aug 2026
Claimant rate: every postcode district in N23 areas from 3.5% to 10.1%. The middle area is 5.6%. N20 is 3.6%.
3.6%joint 3rd lowest

Is N20 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in N20 at a rate of 69.2 per 1,000 people.

That compares with 130.0 per 1,000 people across N.

In August 2026 alone, 141 cases of crime and anti-social behaviour were recorded in N20.

In the 12 months to August 2026, the most common types were violence and sexual offences (383), anti-social behaviour (300) and other crime (213).

A year earlier, the recorded crime rate in N20 was 64.7 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 N20, neighbourhood by neighbourhood

  • Deprivation is ranked by neighbourhood, so N20 has no single figure. Of its 12 neighbourhoods with a rank:
  • Decile 5: 4 neighbourhoods
  • Decile 7: 1 neighbourhood
  • Decile 8: 1 neighbourhood
  • Decile 9: 1 neighbourhood
  • Decile 10 (England’s least deprived 10%): 5 neighbourhoods

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

Neighbourhoods in N20

NamePeople (census)Recorded crime per 1,000Deprivation decileGigabit broadband
Barnet 007C1,36560.1 per 1,0001030.2%
Barnet 007D1,33748.8 per 1,0001087.8%
Barnet 008A1,63840.4 per 1,000971.0%
Barnet 008B1,42641.0 per 1,0001083.1%
Barnet 008C1,670103.5 per 1,000573.5%
Barnet 008D1,789103.8 per 1,000779.5%
Barnet 008E1,80873.4 per 1,000885.0%
Barnet 011A1,92254.9 per 1,000586.6%
Barnet 011B1,43651.9 per 1,0001099.8%
Barnet 011C1,93666.4 per 1,000581.5%
Barnet 012C1,37148.2 per 1,0001099.4%
Barnet 012D1,80689.7 per 1,000563.6%

MPs for N20

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 N202

Postcode sectors in N204

Council1

Towns in N201

Postcode districts next to N205

Nearest rail stations4

More in the N postcode area2

N20 in brief

N20 is a postcode district covering Whetstone, Oakleigh Park and Totteridge, in Barnet.

About 21,404 people lived in N20 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £734,400 in 2025 across 246 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 69.2 per 1,000 people in the 12 months to August 2026 (police.uk).

The median price paid for a home in N20 was £734,400 in 2025.

N20 had 20,430 usual residents at the census.

In N20, 79.2% of homes and businesses could get gigabit-capable broadband in January 2026.

In N20, 3.6% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.