RoadsideThoughts
A Gazetteer for the United States and Canada
Home >> State of Wisconsin >> Rock County  

Welcome to Rock County ...

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

The community of Janesville is the Seat for Rock County.

Rock County was founded in 1836.

From the Census Estimates for 2019, <1> Rock had a population of 163,354 people. This is an increase of 1.93% since the last Census (which gave a population of 160,260 people in 2010).

At the time of the 2010 Census, Rock represented 2.82% of the total population of Wisconsin.

Below are some of the communities located in Rock County:

  • Avon
    (15 miles [24.1 km] to the southwest)
    • Avon is located in Rock County (WI)
    • Jump to our Gazetteer entry for Avon
    • Population from the 2020 Census: 612 people
  • Beloit
    (8 miles [12.9 km] to the south)
    • Beloit is located in Rock County (WI)
    • Jump to our Gazetteer entry for Beloit
    • Population from the 2020 Census: 7,716 people
  • Bradford
    (11 miles [17.7 km] to the east)
    • Bradford is located in Rock County (WI)
    • Jump to our Gazetteer entry for Bradford
    • Population from the 2020 Census: 1,128 people
  • Center
    (8 miles [12.9 km] to the northwest)
    • Center is located in Rock County (WI)
    • Jump to our Gazetteer entry for Center
    • Population from the 2020 Census: 1,116 people
  • Clinton
    (13 miles [20.9 km] to the southeast)
    • Clinton is located in Rock County (WI)
    • Jump to our Gazetteer entry for Clinton
    • Population from the 2020 Census: 975 people
  • Edgerton
    (12 miles [19.3 km] to the north)
    • Edgerton is located in Rock County (WI)
    • Jump to our Gazetteer entry for Edgerton
    • Population from the 2020 Census: 5,595 people
  • Evansville
    (15 miles [24.1 km] to the northwest)
    • Evansville is located in Rock County (WI)
    • Jump to our Gazetteer entry for Evansville
    • Population from the 2020 Census: 5,556 people
  • Footville
    (8 miles [12.9 km] to the west)
    • Footville is located in Rock County (WI)
    • Jump to our Gazetteer entry for Footville
    • Population from the 2020 Census: 822 people
  • Continue List   (20 more) ...
    • Fulton
      (10 miles [16.1 km] to the north)
      • Fulton is located in Rock County (WI)
      • Jump to our Gazetteer entry for Fulton
      • Population from the 2020 Census: 3,435 people
    • Harmony
      (7 miles [11.3 km] to the northeast)
      • Harmony is located in Rock County (WI)
      • Jump to our Gazetteer entry for Harmony
      • Population from the 2020 Census: 2,604 people
    • Janesville
      (4 miles [6.4 km] to the north)
      • Janesville is located in Rock County (WI)
      • Jump to our Gazetteer entry for Janesville
      • Population from the 2020 Census: 3,612 people
    • Johnstown
      (11 miles [17.7 km] to the east)
      • Johnstown is located in Rock County (WI)
      • Jump to our Gazetteer entry for Johnstown
      • Population from the 2020 Census: 791 people
    • La Prairie
      (5 miles [8 km] to the east)
      • La Prairie is located in Rock County (WI)
      • Jump to our Gazetteer entry for La Prairie
      • Population from the 2020 Census: 871 people
    • Lima
      (14 miles [22.5 km] to the northeast)
      • Lima is located in Rock County (WI)
      • Jump to our Gazetteer entry for Lima
      • Population from the 2020 Census: 1,357 people
    • Magnolia
      (13 miles [20.9 km] to the west)
      • Magnolia is located in Rock County (WI)
      • Jump to our Gazetteer entry for Magnolia
      • Population from the 2020 Census: 808 people
    • Milton
      (11 miles [17.7 km] to the northeast)
      • Milton is located in Rock County (WI)
      • Jump to our Gazetteer entry for Milton
      • Population from the 2020 Census: 3,126 people
    • Newark
      (10 miles [16.1 km] to the southwest)
      • Newark is located in Rock County (WI)
      • Jump to our Gazetteer entry for Newark
      • Population from the 2020 Census: 1,617 people
    • Orfordville
      (10 miles [16.1 km] to the west)
      • Orfordville is located in Rock County (WI)
      • Jump to our Gazetteer entry for Orfordville
      • Population from the 2020 Census: 1,486 people
    • Plymouth
      (7 miles [11.3 km] to the west)
      • Plymouth is located in Rock County (WI)
      • Jump to our Gazetteer entry for Plymouth
      • Population from the 2020 Census: 1,305 people
    • Porter
      (12 miles [19.3 km] to the northwest)
      • Porter is located in Rock County (WI)
      • Jump to our Gazetteer entry for Porter
      • Population from the 2020 Census: 1,000 people
    • Rock
      (2 miles [3.2 km] to the southwest)
      • Rock is located in Rock County (WI)
      • Jump to our Gazetteer entry for Rock
      • Population from the 2020 Census: 3,168 people
    • Spring Valley
      (13 miles [20.9 km] to the west)
      • Spring Valley is located in Rock County (WI)
      • Jump to our Gazetteer entry for Spring Valley
      • Population from the 2020 Census: 788 people
    • Turtle
      (9 miles [14.5 km] to the southeast)
      • Turtle is located in Rock County (WI)
      • Jump to our Gazetteer entry for Turtle
      • Population from the 2020 Census: 2,383 people
    • Union
      (16 miles [25.7 km] to the northwest)
      • Union is located in Rock County (WI)
      • Jump to our Gazetteer entry for Union
      • Population from the 2020 Census: 2,135 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.