Olmito, TX has a population of 1,185 and is the 14,106th largest city in the United States. The population density is 1,851 per sq mi which is 1809% higher than the Texas average and 1943% higher than the national average. The median age in Olmito is 37 which is approximately 9% higher than the Texas average of 34. In Olmito, 62% of the population over 15 years of age are married, 23% speak English and 77% speak Spanish. 63% of Olmito residents were born in Texas, 3% were born out of state, 1% were born outside of the United States and 33% were foreign born.