Milton is an unincorporated community and census-designated place in Lafayette Parish, Louisiana, United States. At the 2010 U.S. census it had a population of 3,030; at the 2019 American Community Survey, it had an estimated population of 2,299. Milton is part of the Lafayette metropolitan statistical area.

Lafayette Parish is a parish located in the U.S. state of Louisiana. According to the 2020 U.S. census, the parish had a population of 241,753, up from 221,578 at the 2010 United States census. The parish seat is the city of Lafayette. The parish was founded in 1823. Since 1996, the city and parish have operated as a consolidated government.