Cross Mountain, TX has a population of 2,760 and is the 9,226th largest city in the United States. The population density is 410 per sq mi which is 323% higher than the Texas average and 353% higher than the national average. The median age in Cross Mountain is 45 which is approximately 31% higher than the Texas average of 34. In Cross Mountain, 80% of the population over 15 years of age are married, 76% speak English and 12% speak Spanish. 55% of Cross Mountain residents were born in Texas, 32% were born out of state, 2% were born outside of the United States and 10% were foreign born.