New Iberia is the largest city in and parish seat of Iberia Parish in the U.S. state of Louisiana. The city of New Iberia is located approximately 21 miles southeast of Lafayette, and forms part of the Lafayette metropolitan statistical area in the region of Acadiana. The 2020 United States census tabulated a population of 28,555. New Iberia is served by Amtrak’s Sunset Limited, operating between Los Angeles and New Orleans.