Welcome to Rio ...
The village of Rio is located in Columbia County<1>.
While we don't have a date for the founding of Rio, you might consider that their post office opened in 1852.
From the Census Estimates for 2019, Rio has a population of 1,039 people<2> (see below for details).
Rio is 930 feet [283 m] above sea level.<3>.
Time Zone: Rio lies in the Central Time Zone (CST/CDT) and observes daylight saving time
Area Codes for Rio: 920 & 274<4>
The ZIP code for Rio: 53960<5>
Population Details ...
Taken from the 2019 Census Estimates, Rio had an population of 1,039 people. This is a decrease of 1.89% since the 2010 Census (or an increase of 10.77% since the 2000 Census).
At the time of the 2010 Census, Rio had a population of 1,059 people. This makes Rio the county's 16th most populous community.
The population of Rio represents 0.02% of the total population of Wisconsin (which has 5,686,986 people), making it the state's 832nd most populous community.
With a 2010 count of 1,059 people, the population of Rio increased 12.9% from the 2000 Census (with a count of 938 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, Illinois, Kansas, Kentucky, Louisiana, Mississippi, New York, North Dakota, Utah, Virginia and West Virginia.
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.
- Sun Prairie
(18 miles [29 km] to the south)
- Sun Prairie is located in Dane County
- Jump to our Gazetteer entry for Sun Prairie
- Population from the 2020 Census: 35,119 people
- DeForest
(14 miles [22.5 km] to the south)
- DeForest is located in Dane County
- Jump to our Gazetteer entry for DeForest
- Population from the 2020 Census: 10,915 people
- Portage
(13 miles [20.9 km] to the northwest)
- Portage is located in Columbia County
- Jump to our Gazetteer entry for Portage
- Population from the 2020 Census: 10,381 people
- Windsor
(16 miles [25.7 km] to the south)
- Windsor is located in Dane County
- Jump to our Gazetteer entry for Windsor
- Columbus
(13 miles [20.9 km] to the southeast)
- Columbus is located in Columbia County
- Jump to our Gazetteer entry for Columbus
- Population from the 2020 Census: 5,117 people
- Lodi
(17 miles [27.4 km] to the southwest)
- Lodi is located in Columbia County
- Jump to our Gazetteer entry for Lodi
- Population from the 2020 Census: 3,109 people
- Poynette
(9 miles [14.5 km] to the southwest)
- Poynette is located in Columbia County
- Jump to our Gazetteer entry for Poynette
- Population from the 2020 Census: 2,508 people
- Pardeeville
(6 miles [9.7 km] to the northwest)
- Pardeeville is located in Columbia County
- Jump to our Gazetteer entry for Pardeeville
- Population from the 2020 Census: 2,053 people
- Fall River
(10 miles [16.1 km] to the southeast)
- Fall River is located in Columbia County
- Jump to our Gazetteer entry for Fall River
- Population from the 2020 Census: 1,757 people
- Randolph
(13 miles [20.9 km] to the northeast)
- Randolph is located in Dodge County
- Jump to our Gazetteer entry for Randolph
- Population from the 2020 Census: 1,738 people
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. Our list includes 5 papers. See our Newspapers 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 (so far) for Rio was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<6>
From that list, the Rio post office opened in 1852.
For more details, see References and Mentions for Rio.
Footnotes ...
| <1> | If you're interested in how the shape of Wisconsin's counties, including Columbia, 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 Rio. |
| <3> | The elevation is an estimate for the area around Rio - 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 920 code has been Overlayed with the 274 area code. New phone numbers in the Rio area will be assigned with one of these codes: 920 or 274. As a result, placing a call in the Rio 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 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> | 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/ |