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Welcome to Cass County ...

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

The community of Atlantic is the Seat for Cass County.

Cass County was founded January 15, 1851 and was created by taking area from Pottawattamie County.

From the Census Estimates for 2019, <1> Cass had a population of 12,836 people. This is a decrease of 7.84% since the last Census (which gave a population of 13,928 people in 2010).

At the time of the 2010 Census, Cass represented 0.46% of the total population of Iowa.

Below are some of the communities located in Cass County:

  • Anita
    (11 miles [17.7 km] to the northeast)
    • Anita is located in Cass County (IA)
    • Jump to our Gazetteer entry for Anita
    • Population from the 2020 Census: 898 people
    • Jump to TripAdvisor's Tourism page for Anita <2>
  • Atlantic
    (3 miles [4.8 km] to the northwest)
  • Cumberland
    (7 miles [11.3 km] to the southeast)
    • Cumberland is located in Cass County (IA)
    • Jump to our Gazetteer entry for Cumberland
    • Population from the 2020 Census: 246 people
  • Griswold
    (12 miles [19.3 km] to the southwest)
  • Lewis
    (7 miles [11.3 km] to the southwest)
    • Lewis is located in Cass County (IA)
    • Jump to our Gazetteer entry for Lewis
    • Population from the 2020 Census: 400 people
    • Jump to TripAdvisor's Tourism page for Lewis <2>
  • Marne
    (9 miles [14.5 km] to the northwest)
    • Marne is located in Cass County (IA)
    • Jump to our Gazetteer entry for Marne
    • Population from the 2020 Census: 114 people
    • Jump to TripAdvisor's Tourism page for Marne <2>
  • Massena
    (12 miles [19.3 km] to the southeast)
  • Wiota
    (5 miles [8 km] to the northeast)
    • Wiota is located in Cass County (IA)
    • Jump to our Gazetteer entry for Wiota
    • Population from the 2020 Census: 107 people
    • Jump to TripAdvisor's Tourism page for Wiota <2>

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.