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Welcome to Warren County ...

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

The community of Lebanon is the Seat for Warren County.

Warren County was founded May 1, 1803 and was created by taking area from Hamilton County.

From the Census Estimates for 2019, <1> Warren had a population of 234,602 people. This is an increase of 9.92% since the last Census (which gave a population of 213,429 people in 2010).

At the time of the 2010 Census, Warren represented 1.85% of the total population of Ohio.

Below are some of the communities located in Warren County:

  • Butlerville
    (11 miles [17.7 km] to the southeast)
    • Butlerville is located in Warren County (OH)
    • Jump to our Gazetteer entry for Butlerville
    • Population from the 2020 Census: 162 people
  • Corwin
    (9 miles [14.5 km] to the northeast)
    • Corwin is located in Warren County (OH)
    • Jump to our Gazetteer entry for Corwin
    • Population from the 2020 Census: 484 people
    • Jump to TripAdvisor's Tourism page for Corwin <2>
  • Franklin
    (9 miles [14.5 km] to the northwest)
    • Franklin is located in Warren County (OH)
    • Jump to our Gazetteer entry for Franklin
    • Population from the 2020 Census: 11,641 people
    • Jump to TripAdvisor's Tourism page for Franklin <2>
  • Harveysburg
    (12 miles [19.3 km] to the east)
    • Harveysburg is located in Warren County (OH)
    • Jump to our Gazetteer entry for Harveysburg
    • Population from the 2020 Census: 569 people
  • Lebanon
    (Less than 2 miles to the southeast)
    • Lebanon is located in Warren County (OH)
    • Jump to our Gazetteer entry for Lebanon
    • Population from the 2020 Census: 20,761 people
    • Jump to TripAdvisor's Tourism page for Lebanon <2>
  • Maineville
    (8 miles [12.9 km] to the south)
  • Mason
    (7 miles [11.3 km] to the southwest)
    • Mason is located in Warren County (OH)
    • Jump to our Gazetteer entry for Mason
    • Population from the 2020 Census: 34,300 people
    • Jump to TripAdvisor's Tourism page for Mason <2>
  • Morrow
    (7 miles [11.3 km] to the southeast)
    • Morrow is located in Warren County (OH)
    • Jump to our Gazetteer entry for Morrow
    • Population from the 2020 Census: 1,357 people
    • Jump to TripAdvisor's Tourism page for Morrow <2>
  • Continue List   (4 more) ...
    • Pleasant Plain
      (12 miles [19.3 km] to the southeast)
    • South Lebanon
      (4 miles [6.4 km] to the south)
    • Springboro
      (8 miles [12.9 km] to the north)
    • Waynesville
      (9 miles [14.5 km] to the northeast)

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.