Stanley, WI has a population of 3,621 and is the 7,885th largest city in the United States. The population density is 872 per sq mi which is 898% higher than the Wisconsin average and 863% higher than the national average. The median age in Stanley is 39 which is approximately 1% lower than the Wisconsin average of 39. In Stanley, 36% of the population over 15 years of age are married, 95% speak English and 3% speak Spanish. 69% of Stanley residents were born in Wisconsin, 27% were born out of state, 1% were born outside of the United States and 2% were foreign born.