CT4 postcode district: Chartham and around, Kent

CT4 is a postcode district in Kent, with 810 postcodes in use in 4 sectors. It has postcodes in Chartham and Canterbury. It is split between 4 councils: Canterbury (511 postcodes), Ashford (137), Folkestone and Hythe (137) and 1 other.

Postcodes in use: 810
Sectors: 4
Councils: 4 councils
Places: 2 places

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in CT4, and which are new since 2020

New since 2020: 11
In use before 2020: 799
Outline: where 5 or more new postcodes since 2020 lie together

Of the 810 postcodes in CT4 that ONS places, 11 are new since 2020 and 799 were in use before 2020.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. New since 2020 means it came into use in January 2020 or later. A dashed outline shows where 5 or more lie within 280 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

The middle of its postcodes: latitude 51.2234, longitude 1.0650. Open this area on OpenStreetMap

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; when each came into use: the same directory; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

The 5 newest postcodes

CT4 6FNFebruary 2025 CT4 6FPFebruary 2025 CT4 6FLAugust 2024 CT4 5BXNovember 2022 CT4 8DTOctober 2022

Where the new postcodes lie together

5 new postcodes since 2020, outlined on the map. CT4 6FN, is the newest of them.

What broadband can you get in CT4?

Ofcom reports on 803 of the 810 postcodes in CT4. At 191 of them every home and business can get gigabit broadband, and at 43 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit191 of 803

Postcodes where every home can get superfast493 of 803

Postcodes where some cannot get decent broadband43 of 803

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

Is CT4 at risk of flooding?

89 of the 810 postcodes in CT4 have a home or business in an area at risk of flooding from rivers or the sea, the Environment Agency says. At those, it puts 390 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 89 of 810 postcodes High: 263Medium: 127Low: 156Very low: 13

High: 3.3% or more a year (1 in 30). Medium: 1% to 3.3% a year. Low: 0.1% to 1% a year. Very low: under 0.1% a year (1 in 1,000). Each band is the chance of flooding in any one year.

Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.

Source: Environment Agency, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0. How we use it

What do homes sell for in CT4?

Homes in CT4 sold for a typical £412,500 in the 12 months to August 2026, across 150 sales, up 7.8% on the 12 months before, HM Land Registry's figures show.

£412,500 typical price, the 12 months to August 2026

£382,500 12 months to August 2025

▲ up 7.8% on the 12 months before

Detached £585,000 65 sales
Semi-detached £352,500 43 sales
Terraced £309,500 36 sales
Flat or maisonette £172,500 6 sales

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it