RoadsideThoughts
A Gazetteer for the United States and Canada
Home >> State of Illinois >> Williamson County  

Welcome to Williamson County ...

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

The community of Marion is the Seat for Williamson County.

Williamson County was founded in 1839 and was created by taking area from Franklin County.

From the Census Estimates for 2019, <1> Williamson had a population of 66,597 people. This is an increase of 0.25% since the last Census (which gave a population of 66,432 people in 2010).

At the time of the 2010 Census, Williamson represented 0.52% of the total population of Illinois.

Below are some of the communities located in Williamson County:

  • Bush
    (10 miles [16.1 km] to the northwest)
    • Bush is located in Williamson County (IL)
    • Jump to our Gazetteer entry for Bush
    • Population from the 2020 Census: 263 people
  • Cambria
    (8 miles [12.9 km] to the west)
    • Cambria is located in Williamson County (IL)
    • Jump to our Gazetteer entry for Cambria
    • Population from the 2020 Census: 1,648 people
    • Jump to TripAdvisor's Tourism page for Cambria <2>
  • Carterville
    (5 miles [8 km] to the west)
  • Colp
    (7 miles [11.3 km] to the northwest)
    • Colp is located in Williamson County (IL)
    • Jump to our Gazetteer entry for Colp
    • Population from the 2020 Census: 208 people
    • Former name for Colp:
    • Colpville
    • Jump to TripAdvisor's Tourism page for Colp <2>
  • Crainville
    (4 miles [6.4 km] to the west)
    • Crainville is located in Williamson County (IL)
    • Jump to our Gazetteer entry for Crainville
    • Population from the 2020 Census: 1,419 people
  • Creal Springs
    (11 miles [17.7 km] to the southeast)
  • Energy
    (3 miles [4.8 km] to the northwest)
    • Energy is located in Williamson County (IL)
    • Jump to our Gazetteer entry for Energy
    • Population from the 2020 Census: 1,086 people
    • Jump to TripAdvisor's Tourism page for Energy <2>
  • Freeman Spur
    (7 miles [11.3 km] to the north)
    • Freeman Spur is located in Williamson County (IL)
    • Jump to our Gazetteer entry for Freeman Spur
    • Population from the 2020 Census: 276 people
    • Freeman Spur has also been known as:
    • Freeman Spur village
    • Jump to TripAdvisor's Tourism page for Freeman Spur <2>
  • Continue List   (6 more) ...
    • Herrin
      (4 miles [6.4 km] to the northwest)
      • Herrin is located in Williamson County (IL)
      • Jump to our Gazetteer entry for Herrin
      • Population from the 2020 Census: 12,625 people
      • Jump to TripAdvisor's Tourism page for Herrin <2>
    • Hurst
      (11 miles [17.7 km] to the northwest)
      • Hurst is located in Williamson County (IL)
      • Jump to our Gazetteer entry for Hurst
      • Population from the 2020 Census: 780 people
      • Jump to TripAdvisor's Tourism page for Hurst <2>
    • Johnston City
      (5 miles [8 km] to the northeast)
    • Marion
      (2 miles [3.2 km] to the southeast)
      • Marion is located in Williamson County (IL)
      • Jump to our Gazetteer entry for Marion
      • Population from the 2020 Census: 17,417 people
      • Jump to TripAdvisor's Tourism page for Marion <2>
    • Pittsburg
      (6 miles [9.7 km] to the east)
    • Spillertown
      (3 miles [4.8 km] to the east)
      • Spillertown is located in Williamson County (IL)
      • Jump to our Gazetteer entry for Spillertown
      • Population from the 2020 Census: 197 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.