Cache, OK has a population of 2,918 and is the 8,943rd largest city in the United States. The population density is 831 per sq mi which is 1422% higher than the Oklahoma average and 817% higher than the national average. The median age in Cache is 37 which is approximately 3% higher than the Oklahoma average of 36. In Cache, 62% of the population over 15 years of age are married, 95% speak English and 1% speak Spanish. 61% of Cache residents were born in Oklahoma, 35% were born out of state, 3% were born outside of the United States and 1% were foreign born.