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Welcome to River Sioux ...

River Sioux is located in Harrison County<1>.

While we don't have a date for the founding of River Sioux, you might consider that their post office opened  in 1878.

River Sioux is 1,040 feet [317 m] above sea level.<2>.

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

Area Code for River Sioux: 712

Communities near River Sioux ...

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

  • Blair
    (18 miles [29 km] to the south)
    • Jump to our Gazetteer entry for Blair
    • Blair is located in Washington County (NE)
    • Population from the 2020 Census: 7,948 people
    • Jump to TripAdvisor's Tourism page for Blair <3>
  • Onawa
    (15 miles [24.1 km] to the north)
  • Missouri Valley
    (18 miles [29 km] to the southeast)
    • Note: The GPS coordinates that we are using for Missouri Valley have been provided by the GNIS.<4> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Missouri Valley
    • Missouri Valley is located in Harrison County
    • Population from the 2020 Census: 2,576 people
    • Jump to TripAdvisor's Tourism page for Missouri Valley <3>
  • Tekamah
    (9 miles [14.5 km] to the west)
  • Logan
    (17 miles [27.4 km] to the southeast)
    • Jump to our Gazetteer entry for Logan
    • Logan is located in Harrison County
    • Population from the 2020 Census: 1,403 people
    • Jump to TripAdvisor's Tourism page for Logan <3>
  • Woodbine
    (18 miles [29 km] to the east)
    • Note: The GPS coordinates that we are using for Woodbine have been provided by the GNIS.<4> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Woodbine
    • Woodbine is located in Harrison County
    • Population from the 2020 Census: 1,363 people
    • Jump to TripAdvisor's Tourism page for Woodbine <3>
  • Decatur
    (17 miles [27.4 km] to the northwest)
  • Mondamin
    (6 miles [9.7 km] to the south)
  • Herman
    (12 miles [19.3 km] to the southwest)
    • Jump to our Gazetteer entry for Herman
    • Herman is located in Washington County (NE)
    • Population from the 2020 Census: 272 people
    • Jump to TripAdvisor's Tourism page for Herman <3>
  • Modale
    (13 miles [20.9 km] to the south)
    • Note: The GPS coordinates that we are using for Modale have been provided by the GNIS.<4> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Modale
    • Modale is located in Harrison County
    • Population from the 2020 Census: 264 people
    • Jump to TripAdvisor's Tourism page for Modale <3>

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

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

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

TripAdvisor Tourism Pages for River Sioux ...

Looking for more information about River Sioux? 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.

While we are unaware of a Tourism page that is specific to River Sioux, there are neighboring communities that do have Tourism pages. A map of those communities can be found with our TripAdvisor Page for River Sioux.

Adding River Sioux to Our Gazetteer ...

We originally found mention of River Sioux 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 River Sioux was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<5>

X2X - From that list, the River Sioux post office opened in 1878.

We also found River Sioux in the book titled Business Atlas and Shippers' Guide (1895).

For more details, see References and Mentions for River Sioux.

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

The official website for Harrison County: www.harrisoncountyia.org/

The official website for State of Iowa: https://www.iowa.gov/

Footnotes ...

<1>If you're interested in how the shape of Iowa's counties, including Harrison, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>The elevation is an estimate for the area around River Sioux - it will be higher in some places and lower in others.
<3>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<4>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.
<5>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: 28 Apr 2025