Cullompton is a town and civil parish in the district of Mid Devon and the county of Devon, England. It is 13 miles north-east of Exeter and lies on the River Culm. In 2021, the parish as a whole had a population of 10,071, while the built-up area of the town had a population of 9,439. The earliest evidence of occupation is from the Roman period: there was a fort on the hill above the town and occupation in the current town centre.