Compare

TN

Postcode area

Postcode area named after Tonbridge, with 40 districts.

Approximate outline worked out by Open Index from the ONS Postcode Directory: the outline joins its districts’ outlines, each made of the census output areas that hold most of the district’s postcodes.

Open in map

Radon Affected Area by postcode area

Worked out by Open Index · 2022

Under 1%90% or more

About 21% of people in TN live in a 1 km square that the radon atlas marks as a radon Affected Area.

Median sale price
£390,125
31st most expensive of 104
Worked out by Open Index
Population
715,274
28th most populated of 120
ONS Census 2021 · 2021
People in radon Affected Area squares
21%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
78.3%
UK 87.8%
Ofcom · Jan 2026

How TN compares

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

TNMiddle
Median sale price104 postcode areas, England and Wales · 2025
Median sale price: every postcode area in England and Wales104 areas from £145,000 to £821,250. The middle area is £296,475. TN is £390,125.
£390,12531st most expensive
Population120 postcode areas, UK · 2021
Population: every postcode area in UK120 areas from 22,985 to 2,027,347. The middle area is 503,090. TN is 715,274.
715,27428th most populated
People in radon Affected Area squares120 postcode areas, UK · 2022
People in radon Affected Area squares: every postcode area in UK120 areas from 0.0% to 100.0%. The middle area is 41.0%. TN is 21.0%.
21%34th fewest people in radon Affected Areas
Gigabit broadband coverage120 postcode areas, UK · Jan 2026
Gigabit broadband coverage: every postcode area in UK120 areas from 12.0% to 98.0%. The middle area is 88.0%. TN is 78.3%.
78.3%joint 18th lowest

Every postcode area ranked: median sale price, population, people in radon affected area squares and gigabit broadband coverage.

Is TN safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in TN at a rate of 75.6 per 1,000 people.

In August 2026 alone, 5,432 cases of crime and anti-social behaviour were recorded in TN.

In the 12 months to August 2026, the most common types were violence and sexual offences (18,792), anti-social behaviour (11,315) and other crime (9,168).

A year earlier, the recorded crime rate in TN was 72.5 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.

Postcode districts in TN

NamePeople (census)Median sale priceRecorded crime per 1,000
TN1Royal Tunbridge Wells, St James10,946£348,250146.1 per 1,000
TN2Royal Tunbridge Wells, High Brooms30,149£449,00073.0 per 1,000
TN3Lamberhurst, Langton Green11,580£697,50030.2 per 1,000
TN4Royal Tunbridge Wells, Southborough31,780£450,00049.3 per 1,000
TN5Wadhurst, Sparrow's Green9,062£465,00042.7 per 1,000
TN6Crowborough, Whitehill25,168£450,00043.6 per 1,000
TN7Hartfield, Coleman's Hatch2,207£660,00056.1 per 1,000
TN8Edenbridge, Marlpit Hill14,687£470,00076.8 per 1,000
TN9Tonbridge, Brook Street19,295£385,000103.4 per 1,000
TN10Tonbridge, Trench Wood16,995£470,00051.3 per 1,000
TN11Hadlow, Hildenborough14,731£523,20040.8 per 1,000
TN12Paddock Wood, Marden31,404£425,00064.1 per 1,000
TN13Sevenoaks, St John's25,473£713,75051.8 per 1,000
TN14Otford, Sevenoaks17,058£637,50058.1 per 1,000
TN15Borough Green, West Kingsdown25,680£525,00049.8 per 1,000
TN16Biggin Hill, Westerham19,874£477,50075.6 per 1,000
TN17Cranbrook, Goudhurst14,198£447,50060.7 per 1,000
TN18Hawkhurst, Highgate6,634£408,25051.5 per 1,000
TN19Burwash, Etchingham5,159£454,00035.9 per 1,000
TN20Mayfield, Wellbrook4,048£530,00040.2 per 1,000
TN21Heathfield, Horam17,066£390,00042.6 per 1,000
TN22Uckfield, Ringles Cross28,084£414,00049.7 per 1,000
TN23Ashford, Stanhope45,139£295,00098.1 per 1,000
TN24Ashford, Willesborough34,611£323,50089.3 per 1,000
TN25Ashford19,302£405,00048.8 per 1,000
TN26Hamstreet, High Halden12,295£505,00046.8 per 1,000
TN27Headcorn, Charing13,978£445,00058.1 per 1,000
TN28New Romney, Littlestone-on-Sea8,547£347,50058.0 per 1,000
TN29Lydd, St Mary's Bay13,684£300,00054.8 per 1,000
TN30Tenterden, St Michaels9,809£449,00067.3 per 1,000
TN31Rye, Northiam13,937£390,00081.1 per 1,000
TN32Robertsbridge, Staplecross5,524£485,00052.7 per 1,000
TN33Battle, Ninfield12,613£430,00059.3 per 1,000
TN34Hastings, Blacklands31,188£290,000190.8 per 1,000
TN35Hastings, Ore17,288£325,00077.1 per 1,000
TN36Winchelsea, Icklesham2,229£420,00046.1 per 1,000
TN37Hastings, Baldslow19,843£277,250156.8 per 1,000
TN38Hastings, St Leonards-on-Sea29,367£278,500109.5 per 1,000
TN39Bexhill-on-Sea, Little Common26,473£370,00072.1 per 1,000
TN40Bexhill-on-Sea, Pebsham18,169£268,000106.2 per 1,000
TN in brief

The TN postcode area, named after Tonbridge, has 40 postcode districts.

The median price paid for a home in TN was £390,125 in 2025.

TN had 715,274 usual residents at the census.

About 21% of people in TN live in a 1 km square that the radon atlas marks as a radon Affected Area.

In TN, 78.3% of homes and businesses could get gigabit-capable broadband in January 2026.