Dane County is the second-largest county in Wisconsin, behind Milwaukee. The county seat is in Madison, which is the state capital as well. Dane County is home to 120 cities and towns. Dane County is well-known for the large assortment of parks including the fascinating Cave of the Mounds as a geologic wonder, Military Ridge State Trail that’s perfect for hiking and biking and the beautiful Lake Mendota with sandy beaches and great fishing for all.