Rock Creek, AL has a population of 1,430 and is the 12,973rd largest city in the United States. The population density is 474 per sq mi which is 415% higher than the Alabama average and 423% higher than the national average. The median age in Rock Creek is 45 which is approximately 17% higher than the Alabama average of 39. In Rock Creek, 65% of the population over 15 years of age are married, 98% speak English and 0% speak Spanish. 88% of Rock Creek residents were born in Alabama, 9% were born out of state, 0% were born outside of the United States and 3% were foreign born.