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Welcome to Rio ...

The village of Rio is located in Knox County<1>.


The location of Rio has been provided by the Geographic Names Information System (ie- the GNIS).<2>


While we don't have a date for the founding of Rio, you might consider that their post office opened  in 1871.

From the  Census Estimates for 2019, Rio has a population of 207 people<3> (see below for details).

Rio is 780 feet [238 m] above sea level.<4>.

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

Rio lies within the (309) area code.

The ZIP code for Rio: 61472<5>

Population Details ...

Taken from the 2019 Census Estimates, Rio had an population of 207 people. This is a decrease of 5.91% since the 2010 Census (or a decrease of 13.75% since the 2000 Census).

At the time of the 2010 Census, Rio had a population of 220 people. This makes Rio the county's 13th most populous community.

With a 2010 count of 220 people, the population of Rio decreased 8.33% from the 2000 Census (with a count of 240 people).

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

Communities Also Named Rio ...

Using our Gazetteer, we found that there are 12 communities that are also named Rio - they are located in Florida, Georgia, Kansas, Kentucky, Louisiana, Mississippi, New York, North Dakota, Utah, Virginia, West Virginia and Wisconsin.

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

Communities near Rio ...

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

  • Galesburg
    (11 miles [17.7 km] to the south)
  • Monmouth
    (18 miles [29 km] to the southwest)
    • Note: The GPS coordinates that we are using for Monmouth have been provided by the GNIS.<2> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Monmouth
    • Monmouth is located in Warren County
    • Population from the 2020 Census: 8,801 people
    • Jump to TripAdvisor's Tourism page for Monmouth <6>
  • Aledo
    (19 miles [30.6 km] to the west)
    • Note: The GPS coordinates that we are using for Aledo have been provided by the GNIS.<2> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Aledo
    • Aledo is located in Mercer County
    • Population from the 2020 Census: 3,383 people
    • Jump to TripAdvisor's Tourism page for Aledo <6>
  • Knoxville
    (15 miles [24.1 km] to the southeast)
    • Note: The GPS coordinates that we are using for Knoxville have been provided by the GNIS.<2> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Knoxville
    • Knoxville is located in Knox County
    • Population from the 2020 Census: 2,692 people
    • Jump to TripAdvisor's Tourism page for Knoxville <6>
  • Galva
    (18 miles [29 km] to the east)
  • Cambridge
    (17 miles [27.4 km] to the northeast)
  • Orion
    (16 miles [25.7 km] to the north)
  • Viola
    (11 miles [17.7 km] to the northwest)
    • Note: The GPS coordinates that we are using for Viola have been provided by the GNIS.<2> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Viola
    • Viola is located in Mercer County
    • Population from the 2020 Census: 874 people
    • Jump to TripAdvisor's Tourism page for Viola <6>
  • Alexis
    (8 miles [12.9 km] to the west)
  • Wataga
    (8 miles [12.9 km] to the southeast)
    • Note: The GPS coordinates that we are using for Wataga have been provided by the GNIS.<2> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Wataga
    • Wataga is located in Knox County
    • Population from the 2020 Census: 773 people
    • Jump to TripAdvisor's Tourism page for Wataga <6>

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 Rio. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Rio.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Rio. 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 Rio.

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

TripAdvisor Tourism Pages for Rio ...

Looking for more information about Rio? 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 Rio, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Rio.

Adding Rio to Our Gazetteer ...

We originally found mention of Rio 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 for Rio was on a map (with an unknown title) dated 1870.

We also found Rio in the book titled .<7> From that list, the Rio post office opened in 1871.

For more details, see References and Mentions for Rio.

Unfortunately, we don't know of a website for Rio. If you can help, please contact us through our Feedback Page.

The official website for State of Illinois: https://illinois.gov

Footnotes ...

<1>If you're interested in how the shape of Illinois' counties, including Knox, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>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.
<3>Population counts have been provided by the U.S. Census Bureau. For more detail, please visit our Census Page for Rio.
<4>The elevation is an estimate for the area around Rio - it will be higher in some places and lower in others.
<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 village (such as Rio). When looking for a ZIP Code, whether Rio 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 their list with background information can be found at:

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




 

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This page was last modified/updated: 07 Apr 2024