City Hall of Ferris, Texas, United States. – Larry D. Moore, CC BY 4.0 – Wikimedia Commons Ferris is located in Ellis County. About 2,788 people live here (as of 2020). Between 2010 and 2020, the population grew from 2,436 to 2,788. The region is at 142 meters above sea level. The area covers about 12.4 square kilometers. There are about 215 streets in Ferris. The region was founded in 1874. The postal codes are 75125. The dialing code is 972. Ferris is city in Dallas and Ellis counties in Texas, United States. Among other things, Ferris has hairdressers. More information at www.ferristexas.gov.