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Welcome to Mercer County ...

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

The community of Mercer is the Seat for Mercer County.

Mercer County was founded March 12, 1800 and was created by taking area from Allegheny County.

From the Census Estimates for 2019, <1> Mercer had a population of 109,424 people. This is a decrease of 6.16% since the last Census (which gave a population of 116,605 people in 2010).

At the time of the 2010 Census, Mercer represented 0.92% of the total population of Pennsylvania.

Below are some of the communities located in Mercer County:

  • Clark
    (11 miles [17.7 km] to the southwest)
    • Clark is located in Mercer County (PA)
    • Jump to our Gazetteer entry for Clark
    • Population from the 2020 Census: 588 people
    • Jump to TripAdvisor's Tourism page for Clark <2>
  • Farrell
    (10 miles [16.1 km] to the southwest)
    • Farrell is located in Mercer County (PA)
    • Jump to our Gazetteer entry for Farrell
    • Population from the 2020 Census: 4,542 people
    • Jump to TripAdvisor's Tourism page for Farrell <2>
  • Fredonia
    (3 miles [4.8 km] to the northeast)
  • Greenville
    (8 miles [12.9 km] to the northwest)
  • Grove City
    (11 miles [17.7 km] to the southwest)
  • Hermitage
    (8 miles [12.9 km] to the southwest)
  • Jackson Center
    (9 miles [14.5 km] to the east)
  • Jamestown
    (14 miles [22.5 km] to the northwest)
  • Continue List   (8 more) ...
    • Mercer
      (6 miles [9.7 km] to the southeast)
      • Mercer is located in Mercer County (PA)
      • Jump to our Gazetteer entry for Mercer
      • Population from the 2020 Census: 1,865 people
      • Jump to TripAdvisor's Tourism page for Mercer <2>
    • New Lebanon
      (14 miles [22.5 km] to the northeast)
      • New Lebanon is located in Mercer County (PA)
      • Jump to our Gazetteer entry for New Lebanon
      • Population from the 2020 Census: 170 people
    • Sandy Lake
      (12 miles [19.3 km] to the east)
    • Sharon
      (10 miles [16.1 km] to the southwest)
      • Sharon is located in Mercer County (PA)
      • Jump to our Gazetteer entry for Sharon
      • Population from the 2020 Census: 12,827 people
      • Jump to TripAdvisor's Tourism page for Sharon <2>
    • Sharpsville
      (8 miles [12.9 km] to the west)
    • Sheakleyville
      (11 miles [17.7 km] to the northeast)
      • Sheakleyville is located in Mercer County (PA)
      • Jump to our Gazetteer entry for Sheakleyville
      • Population from the 2020 Census: 134 people
    • Stoneboro
      (11 miles [17.7 km] to the east)
    • West Middlesex
      (10 miles [16.1 km] to the southwest)

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.