Courthouse, Midland County, Midland, TX – Georgia Guercio, CC BY-SA 3.0 – Wikimedia Commons Midland County is located in Texas. About 169,983 people live here (as of 2020). Between 2010 and 2020, the population grew from 136,872 to 169,983. The area covers about 2,336.0 square kilometers. There are about 5.809 streets in Midland County. The region was founded in 1885. The name originates from Midland (city in and county seat of Midland County) Midland County is county in Texas, United States. Among other things, Midland County has hotels, restaurants, cafés, supermarkets, clothing Stores, attractions, museums, schools, banks, hairdressers, dentists, doctors and pharmacies. More information at www.co.midland.tx.us.