Lake Petersburg
Census-designated place in Menard County, Illinois

Lake Petersburg is an unincorporated community (census-designated place) in Menard County, Illinois, with 740 residents (2020 Census). It sits at 597 ft (182 m) above sea level. The nearest town is Petersburg, 2.1 miles N.
- 740residents (2020 Census)
- 597 ftelevation · 182 m
- 1.8 sq miland area · 4.7 km²
- 410 / sq mipopulation density
- 62675ZIP code
About Lake Petersburg
Lake Petersburg is a census-designated place in Menard County, Illinois, United States. Its population was 740 as of the 2020 census. The unincorporated community centers on a small reservoir, which is used extensively by residents for recreation.
Text: Wikipedia · CC BY-SA 4.0
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Living in Lake Petersburg
- Median household income
- $144,375
- Median home value
- $338,700
- Median age
- 60.8
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Map of Lake Petersburg
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Open in Google Maps ›Lake Petersburg, IL population
Lake Petersburg had 740 residents in the 2020 Census.
| 2020 Census | 740 |
|---|---|
| Density | 410 per sq mi (158 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Lake Petersburg at a glance
| State | Illinois (IL) |
|---|---|
| County | Menard County |
| Type | Census-designated place |
| Population | 740 (2020) |
| Land area | 1.81 sq mi (4.7 km²) |
| Water area | 0.28 sq mi (0.71 km²) |
| Elevation | 597 ft (182 m) |
| Coordinates | 39.9843° N, 89.8562° W |
| ZIP code | 62675 |
| Official website | lakepetersburg.org |
| Census code (GEOID) | 1741404 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Lake Petersburg
- Petersburg2.1 mi N
- Tallula5.0 mi SW
- Athens7.3 mi E
- Pleasant Plains8.3 mi SW
- Greenview9.3 mi NE
- Oakford9.9 mi NW
- Cantrall10.0 mi E
- Ashland10.4 mi SW
- Kilbourne14.2 mi NW
- Sherman14.9 mi SE
- Berlin15.9 mi S
- Middletown16.1 mi NE
Straight-line distance between town centers.
Frequently asked questions about Lake Petersburg
What county is Lake Petersburg in?
Lake Petersburg is in Menard County, Illinois.
What is the population of Lake Petersburg, IL?
740 people lived in Lake Petersburg at the 2020 Census.
What is the ZIP code of Lake Petersburg, IL?
The ZIP code of Lake Petersburg is 62675.
What is the elevation of Lake Petersburg?
597 feet (182 m) above sea level.
What towns are near Lake Petersburg?
Petersburg (2.1 mi), Tallula (5.0 mi), Athens (7.3 mi), Pleasant Plains (8.3 mi), Greenview (9.3 mi).
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