Slough (/sl/) is a large town in Berkshire, England (within the historic county of Buckinghamshire[2]), 20 miles (32 km) west of central London (Charing Cross) and 19 miles (31 km) north-east of Reading. It is in the Thames Valley and within the London metropolitan area at the intersection of the M4, M40 and M25 motorways. Slough had a population of 164,000 in 2018.

Borough of Slough
From top clockwise: Tesco Extra, Upton Court Park, Observatory House, Slough town centre, Horlicks Factory and the Ditton Park Manor
Shown within Berkshire
Coordinates: 51°31′N 0°35′W
Sovereign stateUnited Kingdom
Constituent countryEngland
RegionSouth East England
Ceremonial countyBerkshire
Historic countyBuckinghamshire
(including town centre)
(part of east of town)
StatusUnitary authority
Incorporated1 April 1974
Admin HQBath Road, Slough
  TypeUnitary authority
  BodySlough Borough Council
  LeadershipLeader & Cabinet (Labour)
  MPsTanmanjeet Singh Dhesi
Adam Afriyie
  Total12.56 sq mi (32.54 km2)
Area rank297th (of 309)
 (mid-2019 est.)
  Rank140th (of 309)
  Density13,000/sq mi (5,100/km2)
45.7% White
39.7% Asian or British Asian
8.6% Black or Black British
3.4% Mixed Race
2.6% Other[1]
Time zoneUTC0 (GMT)
  Summer (DST)UTC+1 (BST)
ONS code00MD (ONS) E06000039 (GSS)
OS grid referenceSU978797

The A4 and the Great Western Main Line pass through the town. Crossrail provides connection to central London.

Slough's population is one of the most ethnically diverse in the United Kingdom,[3][4] attracting people from across the country and the world for labour since the 1920s, which has helped shape it into a major trading centre. In 2017, unemployment stood at 1.4%,[5] one-third the UK average of 4.5%.[6]

Slough has the highest concentration of UK HQs of global companies outside London. Slough Trading Estate is the largest industrial estate in single private ownership in Europe with over 17,000 jobs in 400 businesses.[7] Blackberry, McAfee, Burger King, DHL and Lego have head offices in the town.[8]