Lake Petersburg is a census-designated place in Menard County, Illinois, United States. Its population was 719 as of the 2010 census.[3] The unincorporated community centers on a small reservoir, which is used extensively by residents for recreation.
Lake Petersburg, Illinois | |
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Census-designated place | |
![]() ![]() Lake Petersburg, Illinois | |
Coordinates: 39°59′01″N 89°51′43″W | |
Country | United States |
State | Illinois |
County | Menard |
Area | |
• Total | 2.08 sq mi (5.39 km2) |
• Land | 1.81 sq mi (4.68 km2) |
• Water | 0.28 sq mi (0.71 km2) |
Elevation | 597 ft (182 m) |
Population (2020) | |
• Total | 740 |
• Density | 409.52/sq mi (158.15/km2) |
Time zone | UTC-6 (Central (CST)) |
• Summer (DST) | UTC-5 (CDT) |
Area code(s) | Area code 217/217 |
GNIS feature ID | 2629895[2] |
Website | https://lakepetersburg.org/ |
Historical population | |||
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Census | Pop. | %± | |
2020 | 740 | — | |
U.S. Decennial Census[4] |
Municipalities and communities of Menard County, Illinois, United States | ||
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County seat: Petersburg | ||
Cities | ![]() | |
Villages | ||
Precincts |
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CDP | ||
Other unincorporated communities | ||
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