Founded 1837 County Seat - Princeton Largest city - Princeton Area
- Total 873 sq mi (2,262 km²)
- Land 869 sq mi (2,250 km²)
- Water 5 sq mi (12 km²),0.54% Population
35,503 Time zone Central: UTC-6/-5
Physical Address
Bureau County Courthouse 700 S. Main Street Princeton, Il. 61356-2048 Phone (815)875-2014