Forney, TX has a population of 16,842 and is the 2,542nd largest city in the United States. The population density is 1,178 per sq mi which is 1115% higher than the Texas average and 1200% higher than the national average. The median age in Forney is 31 which is approximately 11% lower than the Texas average of 34. In Forney, 61% of the population over 15 years of age are married, 86% speak English and 13% speak Spanish. 68% of Forney residents were born in Texas, 26% were born out of state, 1% were born outside of the United States and 5% were foreign born.