CO12
Postcode districtPostcode district covering Harwich and Upper Dovercourt, in Tendring.
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 CO12 postcode. How census figures are added up
Radon Affected Area by postcode district
Worked out by Open Index · 2022
About 11% of people in CO12 live in a 1 km square that the radon atlas marks as a radon Affected Area.
How CO12 compares
Each dot is a postcode district. The black line marks the middle one.
Is CO12 safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in CO12 at a rate of 96.0 per 1,000 people.
That compares with 83.5 per 1,000 people across the CO postcode area.
In August 2026 alone, 273 cases of crime and anti-social behaviour were recorded in CO12.
In the 12 months to August 2026, the most common types were violence and sexual offences (1,082), other crime (362) and anti-social behaviour (272).
A year earlier, the recorded crime rate in CO12 was 89.0 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 CO12, neighbourhood by neighbourhood
- Deprivation is ranked by neighbourhood, so CO12 has no single figure. Of its 14 neighbourhoods with a rank:
- Decile 1 (England’s most deprived 10%): 4 neighbourhoods
- Decile 2: 2 neighbourhoods
- Decile 3: 1 neighbourhood
- Decile 4: 5 neighbourhoods
- Decile 5: 1 neighbourhood
- Decile 7: 1 neighbourhood
English Indices of Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in England.
Neighbourhoods in CO12
| Name | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
|---|---|---|---|---|
| Tendring 001A | 1,324 | 139.3 per 1,000 | 1 | 82.1% |
| Tendring 001B | 1,456 | 117.6 per 1,000 | 1 | 95.5% |
| Tendring 001C | 1,702 | 58.5 per 1,000 | 3 | 93.3% |
| Tendring 001D | 1,936 | 226.0 per 1,000 | 1 | 95.4% |
| Tendring 002A | 1,644 | 52.6 per 1,000 | 5 | 95.5% |
| Tendring 002C | 1,796 | 130.3 per 1,000 | 1 | 84.8% |
| Tendring 002D | 1,870 | 196.0 per 1,000 | 2 | 99.4% |
| Tendring 002F | 2,553 | 81.6 per 1,000 | 2 | 71.2% |
| Tendring 004A | 1,052 | 30.1 per 1,000 | 4 | 53.7% |
| Tendring 004B | 1,189 | 33.2 per 1,000 | 4 | 18.4% |
| Tendring 004C | 1,949 | 27.0 per 1,000 | 4 | 99.2% |
| Tendring 004D | 1,737 | 40.4 per 1,000 | 4 | 66.2% |
| Tendring 004E | 1,801 | 74.6 per 1,000 | 7 | 91.0% |
| Tendring 004F | 1,412 | 66.5 per 1,000 | 4 | 57.5% |
MPs for CO12
- Sir Bernard JenkinConservativeMP for Harwich and North Essex87% of CO12’s postcodes
- Nigel FarageReform UKMP for Clacton13% of CO12’s postcodes
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 CO123
Postcode sectors in CO124
Council1
Towns in CO121
Postcode districts next to CO122
Nearest rail stations3
More in the CO postcode area2
CO12 in brief
CO12 is a postcode district covering Harwich and Upper Dovercourt, in Tendring.
About 24,400 people lived in CO12 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £255,000 in 2025 across 385 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 96.0 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in CO12 was £255,000 in 2025.
CO12 had 23,424 usual residents at the census.
About 11% of people in CO12 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In CO12, 81.3% of homes and businesses could get gigabit-capable broadband in January 2026.