At the junction of the east and west branches of the Rum River, Princeton became a city in 1856. Now with about 4500 in the city of Princeton and 20,000 in the area, it is one of the largest cities in Mille Lacs County. Princeton has a strong business economy with a library, a number of pharmacies, restaurants, manufacturing firms, and creative retail shops.
     The Princeton Area Chamber of Commerce was established in 1926 as a way to promote the Princeton area. The Chamber membership is made up of over 200 small and large businesses, organizations and individuals from every segment of the community.  The Chamber is a non-profit organization financed through membership investments and creative fund-raising efforts.