RoadsideThoughts
A Gazetteer for the United States and Canada
Home >> State of Minnesota >> Waseca County >> JanesvilleIndex...

Welcome to Janesville ...

The city of Janesville is located in Waseca County<1>.

While we don't have a date for the founding of Janesville, you might consider that their post office opened in 1858.

From the  Census Estimates for 2019, Janesville has a population of 2,245 people<2> (see below for details).

Janesville is 1,060 feet [323 m] above sea level.<3>.

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

Area Codes for Janesville: 507 & 924<4>

The ZIP code for Janesville: 56048<5>

Population Details ...

Taken from the 2019 Census Estimates, Janesville had an population of 2,245 people. This is a decrease of 0.49% since the 2010 Census (or an increase of 6.45% since the 2000 Census).

At the time of the 2010 Census, Janesville had a population of 2,256 people (which is 11.78% of the total population of Waseca County). This makes Janesville the county's 2nd most populous community.

The population of Janesville represents 0.04% of the total population of Minnesota (which has 5,303,925 people), making it the state's 245th most populous community.

With a 2010 count of 2,256 people, the population of Janesville increased 6.97% from the 2000 Census (which had a count of 2,109 people).

More information can be found on the Census Page for Janesville.

Communities Also Named Janesville ...

Using our Gazetteer, we found that there are 7 communities that are also named Janesville - they are located in California, Illinois, Iowa, Kansas, New York, Pennsylvania and Wisconsin.

For more information, see our Tidbits & Trivia Page for Janesville.

Communities near Janesville ...

We have created a list of 10 communities that are near Janesville.

  • Mankato
    (13 miles [20.9 km] to the west)
    • Mankato is located in Blue Earth County
    • Jump to our Gazetteer entry for Mankato
    • Population from the 2020 Census: 43,435 people
    • Jump to TripAdvisor's Tourism page for Mankato <6>
  • North Mankato
    (16 miles [25.7 km] to the west)
  • Saint Peter
    (18 miles [29 km] to the northwest)
  • Waseca
    (10 miles [16.1 km] to the east)
  • Eagle Lake
    (9 miles [14.5 km] to the west)
  • Le Center
    (18 miles [29 km] to the north)
  • Waterville
    (9 miles [14.5 km] to the northeast)
  • Mapleton
    (18 miles [29 km] to the southwest)
  • Madison Lake
    (7 miles [11.3 km] to the northwest)
  • New Richland
    (18 miles [29 km] to the southeast)

To Help With Your Genealogy Research ...

We have a couple of sections for those tracing their genealogy.

We created a list of cemeteries that are in the area around Janesville. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Janesville.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Janesville. Our list includes information such as whether the 1895 community had a post office or railroad service. See our List of 1890's Communities around Janesville.

We also have a detailed list of newspapers that have been published in the area around Janesville. See our Newspapers Page for Janesville.

TripAdvisor Tourism Pages for Janesville ...

Looking for more information about Janesville? A wonderful source is the TripAdvisor website. We always start with the TripAdvisor Tourism page, where you can read an overview with links that will help you find lodging, restaurants and attractions.

In addition to the Tourism page for Janesville, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Janesville.

Adding Janesville to Our Gazetteer ...

We originally found mention of Janesville in both the FIPS-55 and the GNIS. For more information, see the FIPS and GNIS Codes sections on our Miscellaneous Page.

From our notes, the earliest published mention we've found (so far) for Janesville was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<7>

From that list, the Janesville post office opened in 1858.

For more details, see References and Mentions for Janesville.

Footnotes ...

<1>If you're interested in how the shape of Minnesota's counties, including Waseca, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>Population counts have been provided by the U.S. Census Bureau. For more detail, please visit our Census Page for Janesville.
<3>The elevation is an estimate for the area around Janesville - it will be higher in some places and lower in others.
<4>When there's a risk of an area code running out of phone numbers, an 'Overlay Area Code' is created that has the same geographic boundaries as the existing area code. In this case, the 507 code has been Overlayed with the 924 area code. New phone numbers in the Janesville area will be assigned with one of these codes: 507 or 924. As a result, placing a call in the Janesville area will require 10-digit dialing (where you enter both the area code and then the phone number).
<5>ZIP Codes have been created by the United States Postal Service (USPS) as a way of grouping addresses to make delivery more efficient. The boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes. So keep in mind that any given ZIP Code is only 'loosely' associated with a city (such as Janesville). When looking for a ZIP Code, whether Janesville or elsewhere, it's always best to check the website of the United States Postal Service (USPS).
<6>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<7>A copy of the Blevins & Helbock Post Office list with background information can be found at:

      https://cblevins.github.io/us-post-offices/data-biography/