Adlington is a small town and civil parish in Lancashire, England, near the West Pennine Moors and the town of Chorley. Six miles northwest of Bolton, it became a separate parish in 1842 then grew into a town around the textile industry. It had a population of 5,270 at the 2001 census, but in the last decade this has risen by over 2,000 more people to 7,326.