Nekoosa, WI has a population of 2,626 and is the 9,540th largest city in the United States. The population density is 774 per sq mi which is 785% higher than the Wisconsin average and 754% higher than the national average. The median age in Nekoosa is 37 which is approximately 6% lower than the Wisconsin average of 39. In Nekoosa, 52% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 86% of Nekoosa residents were born in Wisconsin, 12% were born out of state, 0% were born outside of the United States and 1% were foreign born.