Lake Petersburg, Illinois

Lake Petersburg is a census-designated place in Menard County, Illinois, United States. Its population was 740 as of the 2020 census.[3] The unincorporated community centers on a small reservoir, which is used extensively by residents for recreation.

Lake Petersburg, Illinois
Census-designated place
Lake Petersburg is located in Illinois
Lake Petersburg
Lake Petersburg
Lake Petersburg is located in the United States
Lake Petersburg
Lake Petersburg
Coordinates: 39°58′59″N 89°51′54″W[1]
CountryUnited States
StateIllinois
CountyMenard
Area
[2]
 • Total2.08 sq mi (5.39 km2)
 • Land1.81 sq mi (4.68 km2)
 • Water0.28 sq mi (0.71 km2)
Elevation
[1]
581 ft (177 m)
Population
 (2020)[3]
 • Total740
 • Density409.52/sq mi (158.15/km2)
Time zoneUTC-6 (Central (CST))
 • Summer (DST)UTC-5 (CDT)
ZIP Code
62675 (Petersburg)
Area codeArea code 217
GNIS feature ID2629866[1]
Websitelakepetersburg.org

Geography

Lake Petersburg is southwest of the center of Menard County, surrounding a reservoir of the same name, built in a valley that flows to the Sangamon River less than a mile to the east. Petersburg, the Menard county seat, is 2 miles (3 km) to the north.

According to the U.S. Census Bureau, the Lake Petersburg CDP has a total area of 2.08 square miles (5.39 km2), within which the reservoir occupies 0.28 square miles (0.73 km2), or 13.2% of the community's area.[2]

Demographics
Historical population
CensusPop.Note%±
2010719—
20207402.9%
U.S. Decennial Census[4]

References
  1. U.S. Geological Survey Geographic Names Information System: Lake Petersburg, Illinois
  2. "2022 U.S. Gazetteer Files: Illinois". United States Census Bureau. Retrieved March 14, 2023.
  3. "P1. Race – Lake Petersburg CDP, Illinois: 2020 DEC Redistricting Data (PL 94-171)". U.S. Census Bureau. Retrieved March 14, 2023.
  4. "Census of Population and Housing". Census.gov. Retrieved June 4, 2016.


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