Reedsburg, WI has a population of 9,515 and is the 4,088th largest city in the United States. The population density is 1,666 per sq mi which is 1805% higher than the Wisconsin average and 1738% higher than the national average. The median age in Reedsburg is 36 which is approximately 9% lower than the Wisconsin average of 39. In Reedsburg, 61% of the population over 15 years of age are married, 94% speak English and 4% speak Spanish. 79% of Reedsburg residents were born in Wisconsin, 18% were born out of state, 0% were born outside of the United States and 3% were foreign born.