Fort Worth, TX has a population of 815,930 and is the 16th largest city in the United States. The population density is 2,366 per sq mi which is 2341% higher than the Texas average and 2512% higher than the national average. The median age in Fort Worth is 32 which is approximately 6% lower than the Texas average of 34. In Fort Worth, 52% of the population over 15 years of age are married, 67% speak English and 27% speak Spanish. 57% of Fort Worth residents were born in Texas, 24% were born out of state, 2% were born outside of the United States and 17% were foreign born.