Oak Creek, CO has a population of 879 and is the 15,960th largest city in the United States. The population density is 2,417 per sq mi which is 4755% higher than the Colorado average and 2568% higher than the national average. The median age in Oak Creek is 38 which is approximately 3% higher than the Colorado average of 36. In Oak Creek, 46% of the population over 15 years of age are married, 98% speak English and 0% speak Spanish. 43% of Oak Creek residents were born in Colorado, 56% were born out of state, 0% were born outside of the United States and 1% were foreign born.