Sachse, TX has a population of 23,329 and is the 1,864th largest city in the United States. The population density is 2,388 per sq mi which is 2364% higher than the Texas average and 2536% higher than the national average. The median age in Sachse is 37 which is approximately 9% higher than the Texas average of 34. In Sachse, 66% of the population over 15 years of age are married, 74% speak English and 11% speak Spanish. 55% of Sachse residents were born in Texas, 25% were born out of state, 3% were born outside of the United States and 17% were foreign born.