DT
Postcode areaPostcode area named after Dorchester, with 11 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.
Radon Affected Area by postcode area
Worked out by Open Index · 2022
About 78% of people in DT live in a 1 km square that the radon atlas marks as a radon Affected Area.
How DT compares
Each dot is a postcode area. The black line marks the middle one.
Every postcode area ranked: median sale price, population, people in radon affected area squares and gigabit broadband coverage.
Is DT safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in DT at a rate of 60.2 per 1,000 people.
In August 2026 alone, 1,441 cases of crime and anti-social behaviour were recorded in DT.
In the 12 months to August 2026, the most common types were violence and sexual offences (5,125), anti-social behaviour (3,608) and other crime (1,793).
A year earlier, the recorded crime rate in DT was 62.7 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.
Postcode districts in DT
| Name | People (census) | Median sale price | Recorded crime per 1,000 |
|---|---|---|---|
| DT1Dorchester, Poundbury | 21,358 | £330,000 | 72.1 per 1,000 |
| DT2Dorset | 26,042 | £370,000 | 28.9 per 1,000 |
| DT3Weymouth, Chickerell | 24,583 | £350,000 | 57.4 per 1,000 |
| DT4Weymouth, Melcombe Regis | 37,647 | £254,000 | 114.5 per 1,000 |
| DT5Easton, Weston | 13,559 | £235,000 | 66.3 per 1,000 |
| DT6Bridport | 21,671 | £370,000 | 55.5 per 1,000 |
| DT7Lyme Regis, Uplyme | 5,454 | £479,500 | 37.3 per 1,000 |
| DT8Beaminster, Broadwindsor | 6,177 | £342,500 | 25.4 per 1,000 |
| DT9Sherborne, Milborne Port | 22,350 | £335,000 | 46.8 per 1,000 |
| DT10Stalbridge, Sturminster Newton | 11,961 | £330,000 | 43.6 per 1,000 |
| DT11Blandford Forum | 30,280 | £355,000 | 42.0 per 1,000 |
DT in brief
The DT postcode area, named after Dorchester, has 11 postcode districts.
The median price paid for a home in DT was £320,000 in 2025.
DT had 221,082 usual residents at the census.
About 78% of people in DT live in a 1 km square that the radon atlas marks as a radon Affected Area.
In DT, 75.6% of homes and businesses could get gigabit-capable broadband in January 2026.