Explore Thornburg, Iowa, with this interactive street and satellite map.
| City | Thornburg |
| State | Iowa (IA) |
| County | Keokuk County |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 41.454729 |
| Longitude | -92.335739 |
| Population | 45 |
| Density | 87.3 /km² |
| Incorporated | Yes |
| ZIP Code | 50255 |
| Area Code | 515 |
| County Seat | Sigourney |
| School District | Tri-County Community School District |
Thornburg occupies a quiet expanse of the Iowa prairie where the horizon stretches wide, defined by the rhythmic geometry of tilled fields and the deep, fertile soil of the plains. It lies 19.4 miles northeast of Oskaloosa, IA (from Oskaloosa, IA: bearing 56°T), and is situated 30.3 miles north of Ottumwa. The landscape surrounding Thornburg is characterized by an unshowy, rolling topography that catches the slanted, amber light of late afternoon, casting long shadows across the rows of corn and soybeans. A mile away, Smith Creek traces a slow, meandering path through the earth, its banks providing a subtle change in texture to the otherwise vast agricultural grid. Beyond the immediate reach of the town, the Hawthorn Lake Wildlife Management Area offers a sanctuary of tall grasses and native flora, five miles distant, serving as a reminder of the wilder, uncultivated character that once dominated this interior expanse.
Thornburg retains the steady, deliberate pace of a place built upon the labor of the soil and the quiet endurance of its residents. The local economy remains tethered to the cycles of the seasons, with the seasonal pulse of harvest and planting dictating the rhythm of daily life. While Lake Ponderosa lies fifteen miles away as a destination for those seeking a change of scenery, the heart of Thornburg resides in its enduring heritage and the modest, literate civility of its inhabitants. There is a particular beauty in the way the town functions without fanfare, its history written in the sturdy architecture of its buildings and the persistent, quiet focus of a community that has quietly adapted to the changing demands of the modern agricultural world.
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This page provides an embedded street and satellite map of Thornburg, Iowa. Coordinates: 41.454729, -92.335739. Live weather conditions are sourced directly from the National Weather Service. Real-time local and world news feeds keep the page current.
Detailed location data for Thornburg includes the ZIP code (50255), telephone area code (515), county seat of Keokuk County (Sigourney), and school district assignment (Tri-County Community School District).
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity. Population figures are sourced from the 2020 US Census.
| Page generated | August 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. |