CO1 GP catchment: which practices serve the CO1 postcode district
21,340 people living in the CO1 postcode district are registered with a GP (July 2026), 95% of them at 7 practices. The practice with the most is Colchester Medical Practice in Colchester, with 8,788 (41%). The 3 largest together hold 75% of the district's registrations.
Latest data: July 2026. Registered patients by neighbourhood July 2026; GP Patient Survey 2026.
These are the practices people living in CO1 are actually registered with, from NHS England's count of registered patients by neighbourhood; a practice's own catchment boundary can be wider or narrower. The district is mostly in Colchester.
| Practice | Town | Residents registered | Share | Overall experience good | CQC rating |
|---|---|---|---|---|---|
| Colchester Medical Practice | Colchester | 8,788 | 41% | 87% | Good |
| East Hill Surgery | Colchester | 5,251 | 25% | 83% | Good |
| Creffield Medical Group | Colchester | 1,885 | 9% | 74% | Good |
| Colchester Medical Limited | Colchester | 1,838 | 9% | 75% | Good |
| Abbey Field Medical Centre | Colchester | 1,265 | 6% | 66% | Good |
| Rowhedge & University of Essex Medical Practice | Colchester | 835 | 4% | 66% | – |
| Mill Road Surgery | Colchester | 524 | 2% | 84% | Good |
| Ambrose Avenue Group Practice | Colchester | 292 | 1% | 66% | – |
Across the 8 practices serving CO1 with survey results, the share of patients describing their overall experience as good ranges from 66% at Abbey Field Medical Centre to 87% at Colchester Medical Practice, with a median of 75% (England: 77%). 2 are above England and 3 below by more than the survey's margin of error. Colchester Medical Practice has the highest share finding it easy to get through by phone (77%, England 57%).
Which GP practices serve CO1?
Colchester Medical Practice, East Hill Surgery, Creffield Medical Group, Colchester Medical Limited and Abbey Field Medical Centre have the most registered patients living in CO1.
How many people in CO1 are registered with a GP?
21,340, 95% of them at 7 practices.
Which GP near CO1 do patients rate highest?
Among the practices serving the district, Colchester Medical Practice: 87% of its patients rated their overall experience good in the 2026 GP Patient Survey.