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Welcome to Marion County ...

Time Zone: Marion County lies in the Eastern Time Zone (EST/EDT) and observes daylight saving time.

The community of Marion is the Seat for Marion County.

Marion County was founded April 1, 1820 and was created by taking area from Delaware County.

From the Census Estimates for 2019, <1> Marion had a population of 65,093 people. This is a decrease of 2.05% since the last Census (which gave a population of 66,458 people in 2010).

At the time of the 2010 Census, Marion represented 0.58% of the total population of Ohio.

Below are some of the communities located in Marion County:

  • Caledonia
    (9 miles [14.5 km] to the northeast)
  • Green Camp
    (5 miles [8 km] to the southwest)
    • Green Camp is located in Marion County (OH)
    • Jump to our Gazetteer entry for Green Camp
    • Population from the 2020 Census: 356 people
  • La Rue
    (13 miles [20.9 km] to the west)
    • La Rue is located in Marion County (OH)
    • Jump to our Gazetteer entry for La Rue
    • Population from the 2020 Census: 711 people
  • Marion
    (Less than 2 miles to the north)
    • Marion is located in Marion County (OH)
    • Jump to our Gazetteer entry for Marion
    • Population from the 2020 Census: 35,516 people
    • Jump to TripAdvisor's Tourism page for Marion <2>
  • Morral
    (8 miles [12.9 km] to the northwest)
    • Morral is located in Marion County (OH)
    • Jump to our Gazetteer entry for Morral
    • Population from the 2020 Census: 382 people
  • New Bloomington
    (9 miles [14.5 km] to the west)
    • New Bloomington is located in Marion County (OH)
    • Jump to our Gazetteer entry for New Bloomington
    • Population from the 2020 Census: 511 people
  • Prospect
    (9 miles [14.5 km] to the south)
  • Waldo
    (9 miles [14.5 km] to the south)
    • Waldo is located in Marion County (OH)
    • Jump to our Gazetteer entry for Waldo
    • Population from the 2020 Census: 322 people
    • Jump to TripAdvisor's Tourism page for Waldo <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.