Friendship, OK has a population of 42 and is the 28,355th largest city in the United States. The population density is 280 per sq mi which is 413% higher than the Oklahoma average and 209% higher than the national average. The median age in Friendship is 61 which is approximately 69% higher than the Oklahoma average of 36. In Friendship, 82% of the population over 15 years of age are married, 56% speak English and 0% speak Spanish. 52% of Friendship residents were born in Oklahoma, 21% were born out of state, 0% were born outside of the United States and 26% were foreign born.