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Union Iowa Map

Explore Union, 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.

Interactive Map of Union, Iowa

How to Use This Union, Iowa Map

This interactive map shows the street layout and satellite imagery for Union, 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 Union.

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	Union
State	Iowa (IA)
County	Hardin County
Country	United States of America
Timezone	Central Time (America/Chicago)

Latitude	42.24554
Longitude	-93.064647
Population	399
Density	269.8 /km²
Incorporated	Yes
ZIP Code	50258
Area Code	515
County Seat	Eldora
School District	BCLUW Community School District

🌦 Goto Union Weather Page: Union, Iowa — Weather Warnings, Forecast, Radar, Satellite & Current Conditions

About Union, Iowa

Union is a locality in Hardin County, Iowa, United States. It is a small community with a population of 399. The population density is 269.8 people per km². Union is located at 42.2455°N, 93.0646°W. It observes the Central Time (America/Chicago) timezone. Union is an incorporated locality. ZIP code: 50258.

Union emerges from the vast, undulating expanse of the Iowa prairie, where the horizon stretches wide and unencumbered by anything but the rhythmic geometry of corn and soybean fields. It lies 15.7 miles north-northwest of Marshalltown, IA (from Marshalltown, IA: bearing 329°T), and is situated 8.2 miles south-southeast of Eldora. The landscape here is defined by a deep, fertile soil that holds the light of the setting sun, turning the earth into a vast, gilded canvas as shadows lengthen across the flat plains. Only a mile away, the Iowa River carves a quiet, persistent path through the terrain, its waters reflecting the muted colors of the sky as it moves toward the distant Mississippi. Nearby, the greenery of Daisy Long Memorial Park provides a modest sanctuary of trees, offering a cool respite from the heat of the summer months when the air feels heavy with the scent of ripening grain.

Union retains the steady, industrious character of a settlement built on the strength of the land, where the local economy remains tethered to the seasonal cycles of harvest and growth. The legacy of those who first broke the prairie sod persists in the quiet, methodical pace of daily life, where the stillness of the afternoon is broken only by the hum of machinery or the distant whistle of a train. For those seeking the quietude of water, Upper Pine Lake sits nine miles away, a local destination that marks the transition from the manicured rows of agricultural plots to the more untamed pockets of the regional woodland. There is a particular, unshowy civility to the way the days pass in Union, a place that values the weight of a handshake and the patient labor required to sustain a life in the heart of the Midwest.

Nearby Outdoor Places

Daisy Long Memorial Park (Local Park) — 0.9 mi, 081° E
C.F. Long Wildlife Woods (Local Conservation Area) — 0.9 mi, 026° NE
David Bates Memorial Park (Local Park) — 1.0 mi, 013° N
C.F. Long Memorial Woods (Local Conservation Area) — 2.2 mi, 346° N
Pine Lake State Park (State Park) — 8.0 mi, 354° N
Eldora Veterans Memorial (Monument) — 8.1 mi, 353° N
Civil War Statue (Public Artwork) — 8.1 mi, 348° N
Grand Theatre (Cinema) — 8.1 mi, 348° N
Marietta Sand Prairie State Preserve (State Conservation Area) — 9.7 mi, 172° S
Fallen Rock State Preserve (State Conservation Area) — 10.5 mi, 357° N
Weatherbee School Museum (Museum) — 15.7 mi, 149° SE
Marshall County Historical Museum (Museum) — 15.8 mi, 150° SE
The Depot (Museum) — 16.5 mi, 197° S
Fridley Theatres Plaza 9 (Cinema) — 17.7 mi, 153° SE
Union Grove State Park (State Park) — 18.3 mi, 114° SE
Radcliffe Historical Museum (Museum) — 19.5 mi, 284° W
Reed-Niland Corner (Museum) — 19.9 mi, 219° SW
Ackley Veterans Memorial/ Freedom Rock (Monument) — 21.3 mi, 001° N
Iowa Falls Veterans Memorial (Monument) — 21.7 mi, 331° NW
Story City Carousel (Attraction) — 27.1 mi, 262° W
Acorn Music Hall (Theatre) — 31.3 mi, 244° SW
Octagon Center for the Arts (Gallery) — 31.9 mi, 242° SW
Ames City Auditorium (Theatre) — 32.1 mi, 242° SW
Elwood the Gnome (Attraction) — 33.6 mi, 241° SW
Overlook (Viewpoint) — 33.9 mi, 246° SW
Port Louisa National Wildlife Refuge (National Wildlife Refuge) — 35.1 mi, 125° SE · 24k acres
HA Lynn Football Stadium (Stadium) — 38.5 mi, 180° S
Neal Smith National Wildlife Refuge (National Wildlife Refuge) — 45.8 mi, 193° S · 12k acres

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