Avant, OK has a population of 292 and is the 22,631st largest city in the United States. The population density is 852 per sq mi which is 1460% higher than the Oklahoma average and 840% higher than the national average. The median age in Avant is 37 which is approximately 1% higher than the Oklahoma average of 36. In Avant, 70% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 73% of Avant residents were born in Oklahoma, 27% were born out of state, 0% were born outside of the United States and 0% were foreign born.