Indian Trail Housing Market Update/Video March 2019. Indian Trail, NC (28079 zip code) area includes the towns of Stallings, Hemby Bridge, and Lake Park in Union County. The Indian Trail area saw an increase in both average (+4.6%) and median home prices (+10.4%) year-over-year. Average and median prices both increased over last month. Months supply of homes for sale remains low at just 2 months; inventory decreased, as did new listings. Indian Trail remains a seller's market.