Explore Defiance, Iowa, with this interactive street and satellite map.
This page also offers TOPO MAPS — the official USGS topographic sheets — plus USGS aerial imagery, a labelled USNG grid overlay, a distance and bearing tool, and a GPS grid-reference readout. See How to Use This Map below.
This interactive map shows the street layout and satellite imagery for Defiance, Iowa. Use the Map and Satellite buttons above to switch between street map and aerial imagery views. Use the + and − buttons to zoom in or out, or scroll your mouse wheel while holding the Control key to zoom. On a touchscreen, use a two-finger pinch gesture. Drag the map to pan to any area of Iowa or beyond.
Click ⛶ Fullscreen to expand the map to fill your screen. To return to the normal page view, press the Escape key, click the ✕ Exit Fullscreen button that appears above the map, or on a mobile device tap the back button (Android) or the close icon (iOS).
TOPO MAPS — NEW. Click the green 🔍 Search Maps button below the map to open a second map with a Base map row offering three choices. OSM is the standard OpenStreetMap street map. Topo shows the official USGS topographic maps from The National Map — contours, hydrography, land cover and shaded relief, the same mapping used for hiking, hunting and back-country navigation in the Adirondacks, the Catskills and the Finger Lakes. Imagery shows USGS aerial photography, mostly 1-metre NAIP. The search box finds any US town, county or landmark by name, so you are not limited to Defiance.
Reading the map like a paper quad. Click Grid to overlay the U.S. National Grid (USNG), labelled along the edges exactly as a printed topographic sheet is — at normal zoom the squares are one kilometre across, so you can read a six-figure grid reference by eye and judge distance directly off the map. Click Measure, then tap two points, to get the distance between them together with the grid bearing in degrees and mils, the true bearing, and the magnetic bearing to set on a compass.
Click 📍 My position to take a single GPS reading from your device. It marks where you are and reports your position as a USNG grid reference as well as plain latitude and longitude — USNG being the format FEMA and US search and rescue teams work from — with a Copy position button so you can paste it straight into a text message. It takes one reading and stops, rather than tracking continuously, to conserve your battery. Note that map tiles need cell coverage, but a GPS reading does not — your coordinates stay correct even where the map itself cannot load.
| City | Defiance |
| State | Iowa (IA) |
| County | Shelby County |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 41.824154 |
| Longitude | -95.342776 |
| Population | 245 |
| Density | 233.6 /km² |
| Incorporated | Yes |
| ZIP Code | 51527 |
| Area Code | 641 |
| County Seat | Harlan |
| School District | Harlan Community School District |
Defiance emerges from the vast, undulating quilt of Iowa’s agricultural expanse, defined by the quiet persistence of the West Fork West Nishnabotna River as it traces a meandering path through the loess-rich soil. It lies 29.6 miles southwest of Carroll, IA (from Carroll, IA: bearing 236°T), and is situated 13.4 miles south of Denison. The landscape here is characterized by broad, tilled horizons where the light at dusk flattens the corn and soybean fields into a luminous, golden geometry, stretching toward the subtle elevation of the Loess Hills that rise like a soft, earthen spine on the western edge. Four miles away, the V&w Petersen Wildlife Management Area offers a sanctuary of tall grasses and native brush, providing a stark, untamed contrast to the orderly, industrious rows of the surrounding farms. The air carries the scent of damp earth and seasonal harvest, a persistent reminder of the land’s quiet, rhythmic cycles that govern the slow passage of hours in this corner of the state.
Defiance carries the quiet weight of a settlement founded upon the labor of those who recognized the fertility of these plains, drawing deeply from the German and Scandinavian traditions that shaped its early cultural marrow. The local economy remains tethered to the soil, an unshowy engine of production that sustains the residents through a shared, pragmatic diligence. While the pace of life remains steady and unassuming, those seeking a connection to the wider natural world often venture toward the Upper Nish Habitat Trail, which lies nine miles away to offer a glimpse into the regional ecology. Daily life in Defiance is marked by a literate civility, a subdued atmosphere where the work of the day is punctuated by the steady, reliable hum of machinery and the long, quiet shadows of an expansive sky.
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This page provides an embedded street and satellite map of Defiance, Iowa. Coordinates: 41.824154, -95.342776. 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 Defiance includes the ZIP code (51527), telephone area code (641), county seat of Shelby County (Harlan), and school district assignment (Harlan Community School District).
Search Maps opens a second, independent map. It searches OpenStreetMap for any US town, county or landmark by name; offers USGS topographic maps and USGS aerial imagery as base layers; overlays a labelled U.S. National Grid (USNG) so the map can be read like a printed topographic quad; measures distance and grid, true and magnetic bearings between any two points; and takes a single GPS fix reporting your position as a USNG grid reference and as latitude and longitude. Map tiles require cell coverage, but a GPS position does not, so the coordinates remain correct even where the map cannot load.
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 | September 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Map layers | Google Maps; © OpenStreetMap contributors; USGS The National Map topographic and aerial imagery (public domain); magnetic declination from NOAA NCEI (World Magnetic Model) |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. |