Explore Monticello, Illinois, with this interactive street and satellite map. You can “grab” the Monticello, 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 | Monticello |
| State | Illinois (IL) |
| County | Piatt |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 40.027812 |
| Longitude | -88.573398 |
| Population | 6,304 |
| Density | 606.2 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 61856 |
| Area Code | 309 |
| County Seat | Monticello |
| School District | Monticello Community Unit School District 25 |
Monticello is a locality in Piatt County, Illinois, United States. It has a population of approximately 6,304. The population density is 606.2 people per km². Monticello is located at 40.0278°N, 88.5734°W. It observes the Central Time (America/Chicago) timezone. ZIP code: 61856.
Monticello unfolds across the rolling Illinois prairie, a landscape defined by the vast, open sky and the fertile earth that yields its bounty. It lies 18.5 miles west-south-west of Champaign, IL (from Champaign, IL: bearing 251°T), and is situated 7.3 miles north of Bement. Here, the land sighs with a gentle, almost imperceptible swell, a quiet undulation that stretches towards horizons that seem to go on forever. The air, especially in the languid warmth of late afternoon, carries the faint, sweet scent of drying corn stalks and the distant hum of agricultural machinery, a constant, low thrum beneath the rustle of leaves in the mature trees lining its streets. The character of Monticello is one of sturdy, unpretentious beauty, a place where the very architecture seems to lean into the prairie wind, built to endure and to shelter. This is a place deeply rooted in the rich agricultural heritage of Piatt County, where the economy has long been tied to the cultivation of the land, the broad fields of corn and soybeans painting a vibrant, ever-changing tapestry of green and gold across the seasons. Its history is a testament to the pioneering spirit that settled these plains, with the echoes of those early days still resonating in the well-maintained historic buildings and the strong sense of community. Monticello, in its quiet way, also boasts a distinctive connection to the wider world through its notable families and their contributions, a subtle undercurrent of intellect and innovation that belies its seemingly simple facade, a quiet strength that has always been its hallmark.
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This page provides an embedded street and satellite map of Monticello, Illinois — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 40.027812, -88.573398. 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 Monticello and Piatt County.
Detailed location data for Monticello includes the ZIP code (61856), telephone area code (309), county seat of Piatt County (Monticello), and school district assignment (Monticello Community Unit School District 25). 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 Monticello 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. |