Porter, OK has a population of 642 and is the 18,007th largest city in the United States. The population density is 912 per sq mi which is 1572% higher than the Oklahoma average and 907% higher than the national average. The median age in Porter is 36 which is approximately equal to the Oklahoma average of 36. In Porter, 55% of the population over 15 years of age are married, 98% speak English and 1% speak Spanish. 78% of Porter residents were born in Oklahoma, 20% were born out of state, 1% were born outside of the United States and 2% were foreign born.