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Union, IA

View of Union, IA
Image credit: Photo by William Whittaker, Office of the State Archaeologist, University of Iowa / CC BY-SA 4.0
Population
382
U.S. Census Population Estimates Program · 2025
Elevation
940 ft
Median Home Value
$74,600
U.S. Census American Community Survey 5-Year · 2024
Median Rent
$875/mo
U.S. Census American Community Survey 5-Year · 2024
Median Income
$55,625
U.S. Census American Community Survey 5-Year · 2024

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Union in context.

OverallBest places in IowaPopulation rankingHighest population places in IowaNearest larger communityMarshalltown, Iowa17 miles away · 27,536 residents.

About Union

Union is a city in Hardin County, Iowa, United States. The 2020 census counted 399 residents. Union was laid out in 1868 and was incorporated as a town in 1874. The schools are BCLUW Elementary School in Conrad, BCLUW Middle School in Union, and BCLUW High School in Conrad. Taken together, these details give a newcomer a usable picture of Union, where its history, geography, and current gathering places meet. For Union, the memorable detail is the way older history and current gathering places share one local map.

Top Rating Signals

Highest current ratings for this town.

Lower County Wildfire Hazard Potential ClassA+100.0ratingLower Projected Late-Century County-Area Exposure to Sea-Level RiseA+100.0ratingLow PopulationA+100.0rating

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