Golden, CO has a population of 20,268 and is the 2,147th largest city in the United States. The population density is 2,030 per sq mi which is 3978% higher than the Colorado average and 2141% higher than the national average. The median age in Golden is 31 which is approximately 16% lower than the Colorado average of 36. In Golden, 42% of the population over 15 years of age are married, 89% speak English and 5% speak Spanish. 37% of Golden residents were born in Colorado, 55% were born out of state, 1% were born outside of the United States and 7% were foreign born.