the 2011 census also gave information on the demographic makeup of the town. around 92.1% of the town's population are categorised as white british, making chippenham more ethnically diverse than wiltshire as a whole (93.4% white british), but less diverse than the wider south west (91.8% white british). the largest ethnic minority groups in chippenham are those of irish, polish, and indian descent, each of which makes up around 0.6% of the population (or roughly 250 people each). almost all of chippenham's population are either christian or follow no religion, with the next largest religious group being the 155 muslims in the town.