Lacon, 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 Lacon, Marshall County.
| City | Lacon |
| State | Illinois (IL) |
| County | Marshall |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 41.024758 |
| Longitude | -89.411201 |
| Population | 1,916 |
| Density | 417.2 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 61540 |
| Area Code | 815 |
| County Seat | Lacon |
| School District | Midland Community Unit School District 7 |
Lacon is a locality in Marshall County, Illinois, United States. It has a population of approximately 1,916. The population density is 417.2 people per km². Lacon is located at 41.0248°N, 89.4112°W. It observes the Central Time (America/Chicago) timezone. ZIP code: 61540.
Lacon rises from the Illinois River valley, a quiet confluence of fertile plains and flowing water. It lies 24.7 miles north-north-east of Peoria, IL (from Peoria, IL: bearing 22°T), and is situated 8.1 miles north-north-east of Chillicothe. The land here is a patient sculptor, its gentle swells and broad horizons shaped by ancient currents and millennia of wind. Fields of corn and soybeans, a vast, green and gold quilt, stretch to meet the sky, interrupted only by the occasional cluster of stately oaks or the ribbon of a country road. The air, especially in the soft light of late afternoon, carries the scent of damp earth and distant woodsmoke, a palpable stillness that settles over the landscape like a benediction. The river itself, a constant, murmuring presence, traces the edge of Lacon, its wide, brown expanse reflecting the ever-changing moods of the heavens. The history of Lacon is etched not in grand monuments, but in the enduring spirit of a place built on agriculture and the enduring pulse of the river. For generations, this land has yielded its bounty, a testament to the hard work of its people and the rich soil they cultivate. The Marshall County Courthouse, a dignified brick sentinel, stands as a quiet anchor in the heart of Lacon, a silent witness to the ebb and flow of community life. The economy here remains tied to the land, with farming and its related industries forming the backbone of daily existence, a rhythm dictated by the seasons and the steadfast generosity of nature. Visitors might find themselves drawn to the simple beauty of the riverfront, a place where the water whispers tales of steamboats long gone and the promise of new horizons.
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This page provides an interactive Google map of Lacon, 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 Lacon and Marshall County.
Detailed location data for Lacon includes the ZIP code (61540), telephone area code (815), county seat of Marshall County (Lacon), and school district assignment (Midland Community Unit School District 7). 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 Lacon 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. |