Explore Onslow, Iowa, with this interactive street and satellite map.
| City | Onslow |
| State | Iowa (IA) |
| County | Jones County |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 42.106956 |
| Longitude | -91.015147 |
| Population | 201 |
| Density | 400.0 /km² |
| Incorporated | Yes |
| ZIP Code | 52321 |
| Area Code | 712 |
| County Seat | Anamosa |
| School District | Midland Community School District |
Onslow persists as a quiet grid of streets amidst the vast, tilled expanses of the Iowa plains, where the horizon stretches wide and unencumbered under a sky that feels immense. It lies 30.3 miles east of Marion, IA (from Marion, IA: bearing 80°T), and is situated 18.1 miles west of Maquoketa. The land here leans into a rhythmic, undulating grace, marked by the steady pulse of seasonal agriculture that defines the edges of the fields. Two miles to the west, the quiet waters of Little Bear Creek trace a slender path through the soil, offering a muted contrast to the orderly rows of corn and soybeans that dominate the landscape. In the distance, the faint, blue-shadowed rise of the Dubuque Hills provides a fragile anchor to the far eastern skyline, while the nearby Scotch Grove Prairie preserves a remnant of the tallgrass wilderness that once claimed this entire reach of the continent.
Onslow maintains a character forged by the persistence of its early settlers, who broke the sod to carve out a life centered on the productivity of the black, fertile earth. The economy remains tethered to the cycles of the grain elevator and the seasonal movements of heavy machinery, reflecting a pragmatic, unshowy industry that values the labor of the hands. Life here moves with a deliberate, measured pace, far removed from the frantic acceleration of modern urban centers, yet connected to the wider world through the shared language of the harvest. Beyond the immediate fields, the proximity of Benedict Hollow creates a subtle shift in the drainage of the land, while the recreational calm of Central Park Lake serves as a local point of stillness where the wind ripples across the surface during the long, humid afternoons of late summer.
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This page provides an embedded street and satellite map of Onslow, Iowa. Coordinates: 42.106956, -91.015147. 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 Onslow includes the ZIP code (52321), telephone area code (712), county seat of Jones County (Anamosa), and school district assignment (Midland 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. |