Chadderton Chadderton Town Hall Chadderton Chadderton shown within Greater Manchester Population 34,818 (2011 Census) • Density 6,900/sq mi (2,700/km2) OS grid reference SD905055 • London 165 mi (266 km) SSE Metropolitan borough Oldham Metropolitan county Greater Manchester Region North West Country England Sovereign state United Kingdom Post town OLDHAM Postcode district OL1, OL9 Dialling code 0161 Police Greater Manchester Fire Greater Manchester Ambulance North West EU Parliament North West England UK Parliament Oldham West and Royton