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Welcome to Decatur County ...

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

The community of Leon is the Seat for Decatur County.

Decatur County was founded January 13, 1846.

From the Census Estimates for 2019, <1> Decatur had a population of 7,870 people. This is a decrease of 6.51% since the last Census (which gave a population of 8,418 people in 2010).

At the time of the 2010 Census, Decatur represented 0.28% of the total population of Iowa.

Below are some of the communities located in Decatur County:

  • Davis City
    (6 miles [9.7 km] to the south)
    • Davis City is located in Decatur County (IA)
    • Jump to our Gazetteer entry for Davis City
    • Population from the 2020 Census: 187 people
  • Decatur City
    (2 miles [3.2 km] to the northwest)
    • Decatur City is located in Decatur County (IA)
    • Jump to our Gazetteer entry for Decatur City
    • Population from the 2020 Census: 181 people
  • Garden Grove
    (11 miles [17.7 km] to the northeast)
    • Garden Grove is located in Decatur County (IA)
    • Jump to our Gazetteer entry for Garden Grove
    • Population from the 2020 Census: 200 people
  • Grand River
    (11 miles [17.7 km] to the northwest)
    • Grand River is located in Decatur County (IA)
    • Jump to our Gazetteer entry for Grand River
    • Population from the 2020 Census: 215 people
  • Lamoni
    (10 miles [16.1 km] to the southwest)
    • Lamoni is located in Decatur County (IA)
    • Jump to our Gazetteer entry for Lamoni
    • Population from the 2020 Census: 2,196 people
    • Jump to TripAdvisor's Tourism page for Lamoni <2>
  • Le Roy
    (14 miles [22.5 km] to the northeast)
    • Le Roy is located in Decatur County (IA)
    • Jump to our Gazetteer entry for Le Roy
    • Population from the 2020 Census: 14 people
  • Leon
    (2 miles [3.2 km] to the east)
    • Leon is located in Decatur County (IA)
    • Jump to our Gazetteer entry for Leon
    • Population from the 2020 Census: 1,808 people
    • Jump to TripAdvisor's Tourism page for Leon <2>
  • Pleasanton
    (10 miles [16.1 km] to the south)
    • Pleasanton is located in Decatur County (IA)
    • Jump to our Gazetteer entry for Pleasanton
    • Population from the 2020 Census: 44 people
  • Van Wert
    (9 miles [14.5 km] to the north)
    • Van Wert is located in Decatur County (IA)
    • Jump to our Gazetteer entry for Van Wert
    • Population from the 2020 Census: 208 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.