Explore Lake Petersburg, Illinois, with this interactive street and satellite map. You can “grab” the Lake Petersburg, IL street map and move it around to re-centre it. You can change between standard map view and satellite map view by clicking the small square in the bottom left-hand corner of the map. You can use the zoom buttons on the lower right side of the map to zoom in or out to street-level detail. You will find live weather, local and world news below.
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| City | Lake Petersburg |
| State | Illinois (IL) |
| County | Menard |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 39.98358 |
| Longitude | -89.86207 |
| Population | 928 |
| Density | 164.3 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 62675 |
| Area Code | 217 |
| County Seat | Petersburg |
| School District | Porta Community Unit School District 202 |
Lake Petersburg is a locality in Menard County, Illinois, United States. It is a small community with a population of 928. The population density is 164.3 people per km². Lake Petersburg is located at 39.9836°N, 89.8621°W. It observes the Central Time (America/Chicago) timezone. ZIP code: 62675.
Lake Petersburg lies cradled by rolling terrain, a tranquil expanse of water reflecting the broad Illinois sky. It lies 17.1 miles north-west of Springfield, IL (from Springfield, IL: bearing 317°T), and is situated 2.1 miles south-south-west of Petersburg. The land here is a gentle undulation of fertile soil, where fields of corn and soybeans stretch towards the horizon, their broad leaves whispering secrets to the wind. The air, particularly in the late afternoon, carries a faint, earthy perfume, a blend of sun-baked soil and distant mown hay, and the water itself, a placid mirror, seems to absorb the quietude of its surroundings. The shoreline is a mosaic of reeds and willows, their branches dipping into the cool, clear depths, offering a sanctuary for the myriad of birdlife that calls this place home. The history of Lake Petersburg is intertwined with the agricultural heart of Menard County, a legacy shaped by generations of farmers who have worked this rich earth. While not a bustling metropolis, Lake Petersburg has long served as a quiet gathering place, its modest beginnings echoing the pioneering spirit of early settlers. The local economy, deeply rooted in the bounty of the surrounding farmland, thrives on the cultivation of crops that feed the nation, a steady, dependable rhythm that underpins everyday life. The waters of Lake Petersburg itself offer a different kind of bounty, providing recreation and a place of quiet contemplation for residents and visitors alike, a subtle but significant thread in the fabric of this enduring locality.
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This page provides an embedded street and satellite map of Lake Petersburg, Illinois — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 39.98358, -89.86207. Live weather conditions are sourced directly from the National Weather Service, with current observations and a 7-day forecast also powered by Open-Meteo. Real-time local news and world news feeds keep the page current, while a Wikipedia summary or an editorially written description provides background on Lake Petersburg and Menard County.
Detailed location data for Lake Petersburg includes the ZIP code (62675), telephone area code (217), county seat of Menard County (Petersburg), and school district assignment (Porta Community Unit School District 202). These are among the most commonly searched location details for any US city or town.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity — ensuring the correct Lake Petersburg is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.
| Page generated | July 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. Location verified by proximity — not name matching alone. |