Birchwood is a civil parish in the eastern part of Warrington, Cheshire, England with a population of 11,395 as at the 2001 census. It was built during the time of much expansion in the town of Warrington as it became a "new town". Birchwood Town is separated into three residential estates: Gorse Covert (grid ref SJ665925, population 2,790), Oakwood (grid ref SJ656914, population 4,381) and Locking Stumps (grid ref SJ645918, population 2,759), with all the main facilities centred around the centre.