Bureau County is located in north-central Illinois, covering an area of approximately 1,200 square miles. It was established in 1837 and is named after the Bureau River, which flows through the region. The county seat is Princeton, a city known for its historical significance and vibrant community. The county features a mix of agricultural land and small towns, contributing to its rural character. Bureau County is home to several parks and recreational areas, providing opportunities for outdoor activities. The population is diverse, with a strong sense of community and local traditions that reflect its rich history.