Lake Petersburg
In Menard County, Illinois.
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Tonight
71°F
Partly Cloudy6% precip
Thursday
90°F
Slight Chance Rain Showers then Mostly Sunny22% precip
Thursday Night
68°F
Partly Cloudy then Chance Rain Showers28% precip
Friday
89°F
Chance Rain Showers28% precip
In and around Lake Petersburg
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Explore the Greater Springfield, IL metro →
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Lake Petersburg by the numbers
Households & income
- Area
- 1.81 sq mi (4.68 km²), 0.28 sq mi water
- Median age
- 60.8
- Households
- 420
- Persons per household
- 2.2
- Median household income
- $144,375
- Median house value
- $338,700