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Welcome to Grundy County ...

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

The community of Morris is the Seat for Grundy County.

Grundy County was founded in 1841 and was created by taking area from  County.

From the Census Estimates for 2019, <1> Grundy had a population of 51,054 people. This is an increase of 1.79% since the last Census (which gave a population of 50,154 people in 2010).

At the time of the 2010 Census, Grundy represented 0.39% of the total population of Illinois.

Below are some of the communities located in Grundy County:

  • Braceville
    (7 miles [11.3 km] to the southeast)
  • Carbon Hill
    (3 miles [4.8 km] to the east)
    • Carbon Hill is located in Grundy County (IL)
    • Jump to our Gazetteer entry for Carbon Hill
    • Population from the 2020 Census: 334 people
  • Channahon
    (9 miles [14.5 km] to the northeast)
  • Coal City
    (5 miles [8 km] to the southeast)
  • Diamond
    (6 miles [9.7 km] to the east)
    • Diamond is located in Grundy County (IL)
    • Jump to our Gazetteer entry for Diamond
    • Population from the 2020 Census: 2,484 people
    • Jump to TripAdvisor's Tourism page for Diamond <2>
  • East Brooklyn
    (10 miles [16.1 km] to the southeast)
    • East Brooklyn is located in Grundy County (IL)
    • Jump to our Gazetteer entry for East Brooklyn
    • Population from the 2020 Census: 104 people
  • Gardner
    (8 miles [12.9 km] to the south)
    • Gardner is located in Grundy County (IL)
    • Jump to our Gazetteer entry for Gardner
    • Population from the 2020 Census: 1,377 people
    • Jump to TripAdvisor's Tourism page for Gardner <2>
  • Kinsman
    (13 miles [20.9 km] to the southwest)
  • Continue List   (5 more) ...
    • Mazon
      (5 miles [8 km] to the southwest)
      • Mazon is located in Grundy County (IL)
      • Jump to our Gazetteer entry for Mazon
      • Population from the 2020 Census: 955 people
      • Jump to TripAdvisor's Tourism page for Mazon <2>
    • Minooka
      (10 miles [16.1 km] to the northeast)
      • Minooka is located in Grundy County (IL)
      • Jump to our Gazetteer entry for Minooka
      • Population from the 2020 Census: 11,456 people
      • Jump to TripAdvisor's Tourism page for Minooka <2>
    • Morris
      (4 miles [6.4 km] to the northwest)
      • Morris is located in Grundy County (IL)
      • Jump to our Gazetteer entry for Morris
      • Population from the 2020 Census: 15,162 people
      • Jump to TripAdvisor's Tourism page for Morris <2>
    • South Wilmington
      (10 miles [16.1 km] to the southeast)
      • South Wilmington is located in Grundy County (IL)
      • Jump to our Gazetteer entry for South Wilmington
      • Population from the 2020 Census: 637 people
    • Verona
      (9 miles [14.5 km] to the southwest)
      • Verona is located in Grundy County (IL)
      • Jump to our Gazetteer entry for Verona
      • Population from the 2020 Census: 208 people
      • Jump to TripAdvisor's Tourism page for Verona <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.