Arvada, WY has a population of 35 and is the 28,497th largest city in the United States. The population density is 20 per sq mi which is 240% higher than the Wyoming average and 78% lower than the national average. The median age in Arvada is 50 which is approximately 36% higher than the Wyoming average of 37. In Arvada, 27% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 26% of Arvada residents were born in Wyoming, 74% were born out of state, 0% were born outside of the United States and 0% were foreign born.