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| City | Marietta |
| State | Illinois (IL) |
| County | Fulton |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 40.501152 |
| Longitude | -90.392626 |
| Population | 132 |
| Density | 26.4 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 61459 |
| Area Code | 815 |
| County Seat | Lewistown |
| School District | Fulton County Community Unit School District 3 |
Marietta is a locality in Fulton County, Illinois, United States. It is a small community with a population of 132. The population density is 26.4 people per km². Marietta is located at 40.5012°N, 90.3926°W. It observes the Central Time (America/Chicago) timezone. ZIP code: 61459.
Marietta rests in the gentle embrace of western Illinois, a landscape of rolling hills and fertile bottomlands that speak of a long agricultural heritage. It lies 30.9 miles south of Galesburg, IL (from Galesburg, IL: bearing 182°T), and is situated 7.0 miles east-south-east of Bushnell. The air here, particularly in the late afternoon, carries the sweet, earthy scent of freshly turned soil and ripening corn, a fragrance that mingles with the distant hum of tractors. The Spoon River, a quiet artery, meanders through the periphery, its banks lined with willow and sycamore, reflecting the vast, ever-changing Illinois sky. This is a place where the horizon feels expansive, where the land itself seems to breathe with a quiet, persistent life, and where the houses, often simple and well-maintained, appear to have grown organically from the very earth they occupy. The history of Marietta is deeply intertwined with the rich soil of Fulton County and the agricultural enterprises that have sustained it for generations. Early settlers, drawn by the promise of productive farmland, established a community that has remained steadfastly rooted in its agrarian past, with crops like corn and soybeans forming the backbone of the local economy. While the echoes of past industries may linger in the quietude, the present-day character of Marietta is defined by its hardworking residents and a palpable sense of continuity. The rhythm of life here is measured not by the frantic pulse of urban centers, but by the steady cycle of seasons, the gathering of harvests, and the enduring strength of community bonds.
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This page provides an embedded street and satellite map of Marietta, Illinois — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 40.501152, -90.392626. 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 Marietta and Fulton County.
Detailed location data for Marietta includes the ZIP code (61459), telephone area code (815), county seat of Fulton County (Lewistown), and school district assignment (Fulton County Community Unit School District 3). 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 Marietta 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. |