St Stephen is a civil parish in the City of St Albans district in Hertfordshire, England. It is located approximately 17 miles (27 km) north-northwest of central London, straddling the M25 motorway and immediately adjacent to the southern boundary of St Albans. St Stephen is a partly urbanised parish with multiple centres of activity and open land that forms part of the Metropolitan Green Belt. The local council is St Stephen Parish Council. The parish covers Bricket Wood, Chiswell Green, Frogmore, How Wood and Park Street. It is an ancient parish, and sections of it were transferred to St Albans progressively up to 1935. At the 2011 census it had a population of 13,865.