Barnham, Bognor Regis, West Sussex, is first recorded (as Berneham) in the Doomsday book (1086) when there were 24 households, although the area had been settled from earlier times, including by the Romans. The existence of a church was recorded at the same time, although the present building dates from about 1100. At the time of the coming of the railway in the mid-1800's, the population was still only about 150. The branch line to Bognor was completed in 1864, at which time the junction station opened at Barnham. The improved communications led to the development of the area, with market gardening enjoying the mild and sunny climate and the cattle market that functioned weekly from the 1880's through to 1949. Nowadays horticulture continues to flourish and expand, with major glasshouse installations serving national and Continental consumers. The population has grown to about 1,000, but the bulk of those employed travel out daily to jobs in Littlehampton, Bognor Regis, Chichester and beyond. Including West Barnham, which lies in the parish of Eastergate, brings the population to about 3,000, sufficient to support a wide range of local shops and eating places. Apart from Saint Mary's church (which see), the most historic buildings in the parish are Barnham Court, a private house built in the Dutch style in the mid 1600s, and the Mill which dates from 1830. Although it ceased to function as a windmill about 50 years ago, the building remained largely intact and is now (Oct 2000) undergoing substantial restoration.

There is also a Barnham Broom, in Norfolk. It is a village and parish (which includes Bickerston) located 3 miles northwest of Kimberly station and about the same distance north from Hardingham station, and 5 miles northwest from Wymondham, in the Southern division of the county. It lies within the Forehoe hundred and union, Wymondham county court district, rural deanery of Hingham, archeaconry of Norwich and diocese of Norwich.