CW postcode area

The CW postcode area, also known as the Crewe postcode area, is a group of twelve postcode districts in England, within eight post towns. These cover much of Cheshire, including Crewe, Northwich, Congleton, Middlewich, Nantwich, Sandbach, Tarporley and Winsford, plus very small parts of Staffordshire and Shropshire.

Mail for the CW postcode area is processed at Warrington Mail Centre, along with mail for the L, WA and WN postcode areas.