Highnam is a village and civil parish on the outskirts of the city of Gloucester. It is three miles northwest of the city on the A40, on the way to Ross, west of Alney Island and Over Bridge. It is connected by Segregated Bicycle Paths via Over Bridge and Alney Island to Gloucester. The parish includes the villages of Lassington and Over. In the 2001 census the parish had a population of 2,014, reducing to 1,916 at the 2011 census. At the 2021 census it had increased to 2,141.