Town guide

Onaka, South Dakota

Onaka is a town in Faulk County, South Dakota, home to about 25 people across 0.3 square miles. It has no ZIP code of its own: it’s part of 57466.

ZIP codes in Onaka

1 ZIP code, 1 shared with neighboring towns
Onaka, SD57466Not enough recent sales for market figures yet.

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  • History
  • What it’s like to live there
  • Getting around
  • Things to do

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Around Onaka

Distances

Nearest major airportEppley Airfield (OMA)323 miles away
Closer regional airportAberdeen Regional Airport (ABR)53 miles away
Nearest city of 250,000+Omaha, NE321 miles away
Nearest city of 1 million+Chicago, IL633 miles away

Straight-line distances from the center of Onaka; driving is longer.

Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.

Who represents Onaka

Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.

Population over time

Onaka had 13 residents in the 2020 census, down 57% since 2000.

It’s the 402nd largest of 440 towns in South Dakota by population.

Faulk County grew from 3,547 residents in 1900 to 2,125 in 2020.

Onaka population by census2000: 30, 2010: 15, 2020: 13302000152010132020

Faulk County, 1900–2020

Faulk County population, 1900 to 20201900: 3,547, 1910: 6,716, 1920: 6,442, 1930: 6,895, 1940: 5,168, 1950: 4,752, 1960: 4,397, 1970: 3,893, 1980: 3,327, 1990: 2,744, 2000: 2,640, 2010: 2,364, 2020: 2,1254K’00’106K’20’305K’40’504K’60’703K’80’903K’00’102K’20

Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).

Weather by month

Average highs peak around 83°F in summer, and winter lows average 3°F. About 21.4 inches of rain and melted snow fall in a typical year, with about 47 inches of snow.

Average high and low temperature and precipitation by month near OnakaJan: high 21°F, low 3°F, 0.5 in; Feb: high 26°F, low 7°F, 0.7 in; Mar: high 39°F, low 18°F, 1 in; Apr: high 54°F, low 30°F, 1.8 in; May: high 67°F, low 43°F, 3.2 in; Jun: high 77°F, low 54°F, 3.7 in; Jul: high 83°F, low 59°F, 3.2 in; Aug: high 81°F, low 56°F, 2.3 in; Sep: high 73°F, low 47°F, 1.9 in; Oct: high 57°F, low 33°F, 1.8 in; Nov: high 40°F, low 20°F, 0.7 in; Dec: high 26°F, low 9°F, 0.6 in21°3°Jan0.526°7°Feb0.739°18°Mar1.054°30°Apr1.867°43°May3.277°54°Jun3.783°59°Jul3.281°56°Aug2.373°47°Sep1.957°33°Oct1.840°20°Nov0.726°9°Dec0.6Rain and melted snow, inches

Source: NOAA 1991–2020 climate normals, Roscoe, SD weather station (19 miles away).

Jobs in Faulk County

412 jobs at 64 businesses in Faulk County. The biggest industries by employees:

Largest industries in Faulk CountyHealth care and social assistance: 186 jobs; Retail trade: 62 jobs; Wholesale trade: 54 jobs; Finance and insurance: 24 jobs; Hotels and restaurants: 19 jobs; Construction: 17 jobs; Other services: 14 jobs; Transportation and warehousing: 9 jobsHealth care and social assistance 45% Retail trade 15% Wholesale trade 13% Finance and insurance 6% Hotels and restaurants 5% Construction 4% Other services 3% Transportation and warehousing 2%

Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).

Health care

Nearest hospitals

  • Avera Missouri River Health CenterCritical access hospital · emergency room · Gettysburg18.9 miles
  • Faulkton Area Medical CenterCritical access hospital · emergency room · Faulkton19.5 miles
  • Bowdle Hospital - CahCritical access hospital · emergency room · Bowdle20.0 miles

Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.

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Where Onaka is

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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.