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Welcome to Onaka ...

The town of Onaka is located in Faulk County<1>.

The pronunciation of Onaka: oh-NAY-kuh<2>

While we don't have a date for the founding of Onaka, you might consider that their post office opened  in 1907.

From the  Census Estimates for 2019, Onaka has a population of 14 people<3> (see below for details).

Onaka is 1,860 feet [567 m] above sea level.<4>.

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

Note: If you travel west from Onaka (for example, toward Marksville), you will leave Central Time and cross into the Mountain Time Zone (MST/MDT).

Area Code for Onaka: 605

The ZIP code for Onaka: 57466<5>

Population Details ...

Taken from the 2019 Census Estimates, Onaka had an population of 14 people. This is a decrease of 6.67% since the 2010 Census (or a decrease of 53.33% since the 2000 Census).

At the time of the 2010 Census, Onaka had a population of 15 people. This makes Onaka the county's 8th most populous community.

With a 2010 count of 15 people, the population of Onaka decreased 50% from the 2000 Census (which had a count of 30 people).

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

Communities near Onaka ...

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

  • Wecota
    (17 miles [27.4 km] to the east)
  • Faulkton
    (19 miles [30.6 km] to the southeast)
  • Hoven
    (15 miles [24.1 km] to the west)
  • Roscoe
    (18 miles [29 km] to the north)
    • Note: The GPS coordinates that we are using for Roscoe have been provided by the GNIS.<7> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Roscoe
    • Roscoe is located in Edmunds County
    • Population from the 2020 Census: 285 people
    • Jump to TripAdvisor's Tourism page for Roscoe <6>
  • Gretna
    (17 miles [27.4 km] to the north)
    • Note: The GPS coordinates that we are using for Gretna have been provided by the GNIS.<7> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Gretna
    • Gretna is located in Edmunds County
    • Estimated population in 2014: 52 people
  • Lebanon
    (16 miles [25.7 km] to the southwest)
    • Note: The GPS coordinates that we are using for Lebanon have been provided by the GNIS.<7> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Lebanon
    • Lebanon is located in Potter County
    • Population from the 2020 Census: 43 people
    • Jump to TripAdvisor's Tourism page for Lebanon <6>
  • Seneca
    (9 miles [14.5 km] to the south)
  • Tolstoy
    (7 miles [11.3 km] to the west)
  • Loyalton
    (11 miles [17.7 km] to the northeast)
    • Note: We haven't been able to verify our GPS coordinates for Loyalton. Although the coordinates have been estimated, they should be in the vicinity.<8>
    • Jump to our Gazetteer entry for Loyalton
    • Loyalton is located in Edmunds County
    • Google driving directions:
    • From your current location to Loyalton
    • From Onaka to Loyalton
  • Millard
    (13 miles [20.9 km] to the east)
    • Note: We haven't been able to verify our GPS coordinates for Millard. Although the coordinates have been estimated, they should be in the vicinity.<8>
    • Jump to our Gazetteer entry for Millard
    • Millard is located in Faulk County
    • Google driving directions:
    • From your current location to Millard
    • From Onaka to Millard

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

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

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

TripAdvisor Tourism Pages for Onaka ...

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

Adding Onaka to Our Gazetteer ...

We originally found mention of Onaka 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 Onaka was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<9>

X2X - From that list, the Onaka post office opened in 1907.

We also found Onaka on a map titled Shell Oil Road Map for South Dakota (1949).

For more details, see References and Mentions for Onaka.

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

The official website for State of South Dakota: https://www.sd.gov/

Footnotes ...

<1>If you're interested in how the shape of South Dakota's counties, including Faulk, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>The pronunciation we've provided is our attempt to give a phonetic pronunciation for Onaka. While it might not be exactly right, hopefully it will be close. If we have it wrong or there's a better way to pronounce the name, please contact us through our Feedback Page.
<3>Population counts have been provided by the U.S. Census Bureau. For more detail, please visit our Census Page for Onaka.
<4>The elevation is an estimate for the area around Onaka - 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 town (such as Onaka). When looking for a ZIP Code, whether Onaka 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>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.
<8>An 'estimated' location is one where we have been given GPS coordinates, but are unable to verify the accuracy of those coordinates. That said, we have some confidence that we have placed the marker near the actual location. A typical reason for being unable to verify a location is that it might be on private property or maybe historic and gone without an obvious trace.
<9>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: 29 Apr 2025