Mount Vernon, Illinois — interactive Google street map, satellite and terrain views, Street View, live National Weather Service conditions and 7-day forecasts, real-time local and world news, and an editorial description of Mount Vernon, Jefferson County.
| City | Mount Vernon |
| State | Illinois (IL) |
| County | Jefferson |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 38.317272 |
| Longitude | -88.90312 |
| Population | 14,090 |
| Density | 381.7 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 62864 |
| Area Code | 618 |
| County Seat | Mount Vernon |
| School District | Mount Vernon Township High School District 201 |
Mount Vernon is a locality in Jefferson County, Illinois, United States. It has a population of 14,090. The population density is 381.7 people per km². Mount Vernon is located at 38.3173°N, 88.9031°W. It observes the Central Time (America/Chicago) timezone. ZIP code: 62864.
Mount Vernon, Illinois, unfurls across a landscape shaped by the gentle slopes and broad horizons of southern Illinois. It lies 57.7 miles east-south-east of O Fallon, IL (from O Fallon, IL: bearing 109°T), and is situated 7.1 miles east of Woodlawn. Here, the cultivated fields, a patchwork of emerald and gold depending on the season, stretch towards a sky that often feels immense, especially as the sun dips low, painting the clouds in hues of rose and lavender. The air itself carries a certain stillness, a quiet breath that hints at the fertile earth and the patient cultivation that defines this region. Interspersed with the farmland, stands of oak and maple trees, their branches reaching skyward, offer pockets of shade and a subtle, rustling counterpoint to the open expanse. The story of Mount Vernon is interwoven with the agricultural bounty of Jefferson County, a place where the fertile soil has long been the bedrock of its economy. For generations, the land has yielded its harvest, supporting families and shaping the character of the community. The presence of major roadways, arteries of commerce, underscores its role as a crossroads, a place where goods and people have moved for decades. Beyond the fields, the Rend Lake area, a jewel of recreational waters and natural beauty, offers a different kind of allure, drawing visitors for its boating, fishing, and the simple pleasure of being by the water's edge, a tranquil contrast to the industrious hum of the town.
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This page provides an interactive Google map of Mount Vernon, Illinois with street, satellite and terrain views and integrated Street View imagery. 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 Mount Vernon and Jefferson County.
Detailed location data for Mount Vernon includes the ZIP code (62864), telephone area code (618), county seat of Jefferson County (Mount Vernon), and school district assignment (Mount Vernon Township High School District 201). 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 Mount Vernon is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.
| Page generated | June 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. |