North Washington, CO has a population of 324 and is the 22,065th largest city in the United States. The population density is 62 per sq mi which is 25% higher than the Colorado average and 31% lower than the national average. The median age in North Washington is 52 which is approximately 43% higher than the Colorado average of 36. In North Washington, 56% of the population over 15 years of age are married, 74% speak English and 26% speak Spanish. 60% of North Washington residents were born in Colorado, 32% were born out of state, 0% were born outside of the United States and 8% were foreign born.