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Welcome to Union County ...

Time Zone: Union County lies in the Central Time Zone (CST/CDT) and observes daylight saving time.

The community of Creston is the Seat for Union County.

Union County was founded January 15, 1851 and was created by taking area from Clarke County.

From the Census Estimates for 2019, <1> Union had a population of 12,241 people. This is a decrease of 2.17% since the last Census (which gave a population of 12,513 people in 2010).

At the time of the 2010 Census, Union represented 0.41% of the total population of Iowa.

Below are some of the communities located in Union County:

  • Afton
    (4 miles [6.4 km] to the east)
    • Afton is located in Union County (IA)
    • Jump to our Gazetteer entry for Afton
    • Population from the 2020 Census: 825 people
    • Jump to TripAdvisor's Tourism page for Afton <2>
  • Arispe
    (6 miles [9.7 km] to the southeast)
    • Arispe is located in Union County (IA)
    • Jump to our Gazetteer entry for Arispe
    • Population from the 2020 Census: 96 people
  • Creston
    (4 miles [6.4 km] to the west)
    • Creston is located in Union County (IA)
    • Jump to our Gazetteer entry for Creston
    • Population from the 2020 Census: 7,660 people
    • Jump to TripAdvisor's Tourism page for Creston <2>
  • Cromwell
    (9 miles [14.5 km] to the west)
    • Cromwell is located in Union County (IA)
    • Jump to our Gazetteer entry for Cromwell
    • Population from the 2020 Census: 105 people
  • Lorimor
    (13 miles [20.9 km] to the northeast)
    • Lorimor is located in Union County (IA)
    • Jump to our Gazetteer entry for Lorimor
    • Population from the 2020 Census: 341 people
  • Shannon City
    (9 miles [14.5 km] to the south)
    • Shannon City is located in Union County (IA)
    • Jump to our Gazetteer entry for Shannon City
    • Population from the 2020 Census: 69 people
  • Thayer
    (11 miles [17.7 km] to the east)
    • Thayer is located in Union County (IA)
    • Jump to our Gazetteer entry for Thayer
    • Population from the 2020 Census: 58 people

Websites of Interest ...

Footnotes ...

<1>On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2010 Census and the next count will be for the 2020 Census.
<2>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.