St. Agatha has a year-round resident population of 756 (2010 US Census) with seasonal increases in both summer and winter. The town is home to Long Lake, a 6,000-acre and 12-mile long body of water that attracts many tourists and part time residents each year. St. Agatha offers many recreational opportunities such as: snowmobiling & ATV trails, two boat launching facilities, walking paths, tennis court, softball field, children's playground and a fitness center. St Agatha has a little something for everyone.St. Agatha has a year-round resident population of 756 (2010 US Census) with seasonal increases in both summer and winter. The town is home to Long Lake, a 6,000-acre and 12-mile long body of water that attracts many tourists and part time residents each year. St. Agatha offers many recreational opportunities such as: snowmobiling & ATV trails, two boat launching facilities, walking paths, tennis court, softball field, children's playground and a fitness center. St Agatha has a little something for everyone.