Colchester is located in the county of Essex, Eastern England, three miles north-west of the town of Wivenhoe, and 51 miles north-east of London. Colchester lies five miles south of the Suffolk border. Colchester falls within the district council of Colchester, under the county council of Essex. It is in the CO1 postcode district. The post town for Colchester is Colchester.
Colchester is in the ceremonial county of Essex, the historic county of Essex, and the administrative county of Essex.
Colchester is situated towards the northernmost extremity of Essex, and towards the easternmost extremity of Essex.
The nearest postcode to the centre of Colchester is CO1 9SD.
Colchester is situated roughly centrally between the southernmost and northernmost extremities of the CO1 postcode district, and roughly centrally between the easternmost and westernmost extremities of the CO1 postcode district.
The post town for Colchester is Colchester. Colchester is in the CO1 postcode district, which corresponds to the post town of Colchester.
The centre of Colchester is located at position 51.88971° latitude and 0.89935° longitude.
The centre of Colchester is located at the grid reference easting 599613 and northing 225212 within the British National Grid (OSGB36) system.
Position of Colchester relative to nearby towns. Distance is measured from the centre of Colchester to the centre of the town.
Position of Colchester relative to nearby cities. Distance is measured from the centre of Colchester to the centre of the city.