CO10 postcode district: Sudbury and around

CO10 is a postcode district mostly in Suffolk, with 1,682 postcodes in use in 8 sectors. It has postcodes in Sudbury, Long Melford, Glemsford and 3 more places. It is split between 3 councils: Babergh (1,317 postcodes), West Suffolk (198) and Braintree (167). 1,515 are in Suffolk and 167 in Essex.

Postcodes in use: 1,682
Sectors: 8
Councils: 3 councils
Places: 6 places

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

Every postcode in CO10, and which are new since 2020

New since 2020: 110
In use before 2020: 1,572
Outline: where 5 or more new postcodes since 2020 lie together

Of the 1,682 postcodes in CO10 that ONS places, 110 are new since 2020 and 1,572 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 190 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 52.0586, longitude 0.7215. 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

CO10 1BTJuly 2026 CO10 0ZWMay 2026 CO10 1DNMay 2026 CO10 1DPMay 2026 CO10 1DQMay 2026

Where the new postcodes lie together

41 new postcodes since 2020, outlined on the map. CO10 1BT, is the newest of them.
10 new postcodes since 2020, outlined on the map. CO10 9GJ, is the newest of them.
9 new postcodes since 2020, outlined on the map. CO10 3FJ, is the newest of them.
5 new postcodes since 2020, outlined on the map. CO10 0WJ, is the newest of them.

What broadband can you get in CO10?

Ofcom reports on 1,638 of the 1,682 postcodes in CO10. At 1,017 of them every home and business can get gigabit broadband, and at 15 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit1,017 of 1,638

Postcodes where every home can get superfast1,453 of 1,638

Postcodes where some cannot get decent broadband15 of 1,638

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 CO10 at risk of flooding?

148 of the 1,682 postcodes in CO10 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 306 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 148 of 1,682 postcodes High: 185Medium: 121Low: 413

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 CO10?

Homes in CO10 sold for a typical £321,000 in the 12 months to August 2026, across 677 sales, up 0.3% on the 12 months before, HM Land Registry's figures show.

£321,000 typical price, the 12 months to August 2026

£320,000 12 months to August 2025

▲ up 0.3% on the 12 months before

Detached £455,000 243 sales
Semi-detached £300,000 201 sales
Terraced £265,000 191 sales
Flat or maisonette £159,250 42 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