Saginaw, TX has a population of 21,680 and is the 2,010th largest city in the United States. The population density is 2,889 per sq mi which is 2880% higher than the Texas average and 3088% higher than the national average. The median age in Saginaw is 35 which is approximately 1% higher than the Texas average of 34. In Saginaw, 60% of the population over 15 years of age are married, 81% speak English and 16% speak Spanish. 63% of Saginaw residents were born in Texas, 28% were born out of state, 3% were born outside of the United States and 7% were foreign born.