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| City | St. Lucas |
| State | Iowa (IA) |
| County | Fayette |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 43.066364 |
| Longitude | -91.933499 |
| Population | 154 |
| Density | 46.8 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 52171, 52166 |
| Area Code | 712 |
| County Seat | West Union |
| School District | Turkey Valley Community School District |
St. Lucas is a locality in Fayette County, Iowa, United States. It is a small community with a population of 154. The population density is 46.8 people per km². St. Lucas is located at 43.0664°N, 91.9335°W. It observes the Central Time (America/Chicago) timezone. ZIP code: 52166.
St. Lucas, a whisper of a place in the heart of Fayette County, unfolds across rolling farmland where the sky seems to stretch infinitely. It lies 44.7 miles north-north-east of Waterloo, IA (from Waterloo, IA: bearing 28°T), and is situated 9.6 miles north-west of West Union. Here, the land itself is a gentle sculptor, its contours shaped by the slow, deliberate work of glaciers and millennia of wind, creating broad, sweeping vistas that invite the eye to wander. The air, especially in the soft light of late afternoon, carries a clean, earthy scent, a mingling of freshly turned soil and distant, sun-warmed grasses. Fields of corn and soybeans, a vibrant green in summer and a rich gold in autumn, stretch out like a patchwork quilt, punctuated by stands of mature oak and maple trees that offer shade and a sense of enduring presence. The quiet here is not an absence of sound, but a symphony of subtle noises: the rustle of leaves, the distant hum of a tractor, the call of a hawk circling high above. This is a landscape steeped in the quiet industry of agriculture, a tradition that has sustained St. Lucas for generations. The German heritage of its earliest settlers still echoes in the sturdy stone foundations of many older farmsteads and the enduring faith of its founding church, a landmark that has long served as the spiritual and communal anchor for the surrounding farms. The local economy, though modest, thrives on the bounty of the land, with grain elevators and small businesses serving the needs of the farming families who are the bedrock of St. Lucas. The rhythm of life here is dictated by the seasons, a steady, predictable cadence that fosters a deep connection to the earth and to each other, a quiet resilience that defines the character of St. Lucas.
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This page provides an embedded street and satellite map of St. Lucas, Iowa — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 43.066364, -91.933499. 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 St. Lucas and Fayette County.
Detailed location data for St. Lucas includes the ZIP code (52171), telephone area code (712), county seat of Fayette County (West Union), and school district assignment (Turkey Valley Community School District). 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 St. Lucas 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. |