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Welcome to McHenry County ...

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

The community of Woodstock is the Seat for McHenry County.

McHenry County was founded in 1836 and was created by taking area from Cook County.

From the Census Estimates for 2019, <1> McHenry had a population of 307,439 people. This is a decrease of 0.43% since the last Census (which gave a population of 308,760 people in 2010).

At the time of the 2010 Census, McHenry represented 2.41% of the total population of Illinois.

Below are some of the communities located in McHenry County:

  • Algonquin
    (9 miles [14.5 km] to the south)
  • Bull Valley
    (Less than 2 miles to the northeast)
    • Note: The GPS coordinates that we are using for Bull Valley have been provided by the GNIS.<3> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Bull Valley
    • Bull Valley is located in McHenry County (IL)
    • Population from the 2020 Census: 1,078 people
  • Cary
    (7 miles [11.3 km] to the southeast)
    • Note: The GPS coordinates that we are using for Cary have been provided by the GNIS.<3> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Cary
    • Cary is located in McHenry County (IL)
    • Population from the 2020 Census: 17,929 people
    • Jump to TripAdvisor's Tourism page for Cary <2>
  • Crystal Lake
    (4 miles [6.4 km] to the south)
    • Note: The GPS coordinates that we are using for Crystal Lake have been provided by the GNIS.<3> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Crystal Lake
    • Crystal Lake is located in McHenry County (IL)
    • Population from the 2020 Census: 39,642 people
    • Jump to TripAdvisor's Tourism page for Crystal Lake <2>
  • Fox River Grove
    (9 miles [14.5 km] to the southeast)
    • Note: The GPS coordinates that we are using for Fox River Grove have been provided by the GNIS.<3> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Fox River Grove
    • Fox River Grove is located in McHenry County (IL)
    • Population from the 2020 Census: 4,518 people
    • Jump to TripAdvisor's Tourism page for Fox River Grove <2>
  • Greenwood
    (6 miles [9.7 km] to the north)
    • Note: The GPS coordinates that we are using for Greenwood have been provided by the GNIS.<3> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Greenwood
    • Greenwood is located in McHenry County (IL)
    • Population from the 2020 Census: 224 people
  • Harvard
    (16 miles [25.7 km] to the northwest)
    • Note: The GPS coordinates that we are using for Harvard have been provided by the GNIS.<3> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Harvard
    • Harvard is located in McHenry County (IL)
    • Population from the 2020 Census: 8,979 people
    • Jump to TripAdvisor's Tourism page for Harvard <2>
  • Hebron
    (12 miles [19.3 km] to the north)
    • Note: The GPS coordinates that we are using for Hebron have been provided by the GNIS.<3> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Hebron
    • Hebron is located in McHenry County (IL)
    • Population from the 2020 Census: 1,175 people
    • Jump to TripAdvisor's Tourism page for Hebron <2>
  • Continue List   (19 more) ...
    • Holiday Hills
      (6 miles [9.7 km] to the east)
      • Note: The GPS coordinates that we are using for Holiday Hills have been provided by the GNIS.<3> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Holiday Hills
      • Holiday Hills is located in McHenry County (IL)
      • Population from the 2020 Census: 574 people
    • Huntley
      (10 miles [16.1 km] to the southwest)
      • Note: The GPS coordinates that we are using for Huntley have been provided by the GNIS.<3> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Huntley
      • Huntley is located in McHenry County (IL)
      • Population from the 2020 Census: 27,256 people
      • Jump to TripAdvisor's Tourism page for Huntley <2>
    • Island Lake
      (7 miles [11.3 km] to the east)
      • Note: The GPS coordinates that we are using for Island Lake have been provided by the GNIS.<3> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Island Lake
      • Island Lake is located in McHenry County (IL)
      • Population from the 2020 Census: 7,951 people
    • Johnsburg
      (8 miles [12.9 km] to the northeast)
    • Lake-in-the-Hills
      (8 miles [12.9 km] to the south)
      • Note: The GPS coordinates that we are using for Lake-in-the-Hills have been provided by the GNIS.<3> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Lake-in-the-Hills
      • Lake-in-the-Hills is located in McHenry County (IL)
      • Population from the 2020 Census: 28,345 people
      • Jump to TripAdvisor's Tourism page for Lake-in-the-Hills <2>
    • Lakemoor
      (8 miles [12.9 km] to the east)
      • Note: The GPS coordinates that we are using for Lakemoor have been provided by the GNIS.<3> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Lakemoor
      • Lakemoor is located in McHenry County (IL)
      • Population from the 2020 Census: 5,912 people
      • Jump to TripAdvisor's Tourism page for Lakemoor <2>
    • Lakewood
      (5 miles [8 km] to the south)
      • Note: The GPS coordinates that we are using for Lakewood have been provided by the GNIS.<3> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Lakewood
      • Lakewood is located in McHenry County (IL)
      • Population from the 2020 Census: 3,967 people
      • Jump to TripAdvisor's Tourism page for Lakewood <2>
    • Marengo
      (13 miles [20.9 km] to the west)
      • Note: The GPS coordinates that we are using for Marengo have been provided by the GNIS.<3> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Marengo
      • Marengo is located in McHenry County (IL)
      • Population from the 2020 Census: 7,377 people
      • Jump to TripAdvisor's Tourism page for Marengo <2>
    • McCullom Lake
      (5 miles [8 km] to the northeast)
      • Note: The GPS coordinates that we are using for McCullom Lake have been provided by the GNIS.<3> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for McCullom Lake
      • McCullom Lake is located in McHenry County (IL)
      • Population from the 2020 Census: 996 people
    • McHenry
      (4 miles [6.4 km] to the northeast)
      • Note: The GPS coordinates that we are using for McHenry have been provided by the GNIS.<3> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for McHenry
      • McHenry is located in McHenry County (IL)
      • Population from the 2020 Census: 27,100 people
      • Jump to TripAdvisor's Tourism page for McHenry <2>
    • Oakwood Hills
      (6 miles [9.7 km] to the southeast)
      • Note: The GPS coordinates that we are using for Oakwood Hills have been provided by the GNIS.<3> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Oakwood Hills
      • Oakwood Hills is located in McHenry County (IL)
      • Population from the 2020 Census: 2,011 people
    • Prairie Grove
      (4 miles [6.4 km] to the east)
      • Note: The GPS coordinates that we are using for Prairie Grove have been provided by the GNIS.<3> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Prairie Grove
      • Prairie Grove is located in McHenry County (IL)
      • Population from the 2020 Census: 1,920 people
    • Richmond
      (11 miles [17.7 km] to the north)
      • Note: The GPS coordinates that we are using for Richmond have been provided by the GNIS.<3> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Richmond
      • Richmond is located in McHenry County (IL)
      • Population from the 2020 Census: 1,896 people
      • Jump to TripAdvisor's Tourism page for Richmond <2>
    • Ringwood
      (7 miles [11.3 km] to the north)
      • Note: The GPS coordinates that we are using for Ringwood have been provided by the GNIS.<3> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Ringwood
      • Ringwood is located in McHenry County (IL)
      • Population from the 2020 Census: 806 people
      • Jump to TripAdvisor's Tourism page for Ringwood <2>
    • Spring Grove
      (11 miles [17.7 km] to the northeast)
    • Trout Valley
      (8 miles [12.9 km] to the southeast)
      • Note: The GPS coordinates that we are using for Trout Valley have been provided by the GNIS.<3> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Trout Valley
      • Trout Valley is located in McHenry County (IL)
      • Population from the 2020 Census: 508 people
    • Union
      (10 miles [16.1 km] to the southwest)
      • Note: The GPS coordinates that we are using for Union have been provided by the GNIS.<3> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Union
      • Union is located in McHenry County (IL)
      • Population from the 2020 Census: 548 people
      • Jump to TripAdvisor's Tourism page for Union <2>
    • Wonder Lake
      (6 miles [9.7 km] to the north)
      • Note: The GPS coordinates that we are using for Wonder Lake have been provided by the GNIS.<3> The coordinates still need to be verified.
      • Jump to our Gazetteer entry for Wonder Lake
      • Wonder Lake is located in McHenry County (IL)
      • Population from the 2020 Census: 3,837 people
      • Wonder Lake has also been known as:
      • Wonder Lake village
      • Jump to TripAdvisor's Tourism page for Wonder Lake <2>
    • Woodstock
      (4 miles [6.4 km] to the west)

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.
<3>The location has been supplied by the Geographic Names Information System - which is maintained by the U.S. Geological Survey (USGS). While these values should be definitive, we found that accuracy can vary and you should double-check the location if accuracy is required.





 

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This page was last modified/updated: 26 Feb 2024