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Eureka, South Dakota
Location in McPherson County and the state of South Dakota
Location in McPherson County and the state of South Dakota
Country United States
State South Dakota
County McPherson
Incorporated 1892
Area
 • Total 1.00 sq mi (2.59 km2)
 • Land 0.93 sq mi (2.42 km2)
 • Water 0.07 sq mi (0.17 km2)
Elevation
1,890 ft (576 m)
Population
 (2020)
 • Total 813
 • Density 885.32/sq mi (341.84/km2)
Time zone UTC-6 (Central (CST))
 • Summer (DST) UTC-5 (CDT)
ZIP code
57437
Area code(s) 605
FIPS code 46-20180
GNIS feature ID 1265640

Eureka is a city in western McPherson County, South Dakota, United States, that is near the North Dakota state line. The population was 813 at the 2020 census.

History

Eureka was laid out in 1887, and named "Eureka" a Greek exclamation meaning "I have found it!"

Geography

Eureka is located at 45°46′9″N 99°37′19″W / 45.76917°N 99.62194°W / 45.76917; -99.62194 (45.769069, -99.621953).

According to the United States Census Bureau, the city has a total area of 1.00 square mile (2.59 km2), of which, 0.93 square miles (2.41 km2) is land and 0.07 square miles (0.18 km2) is water.

Eureka has been assigned the ZIP code 57437 and the FIPS place code 20180.

Demographics

Historical population
Census Pop.
1890 552
1900 961 74.1%
1910 961 0.0%
1920 1,200 24.9%
1930 1,308 9.0%
1940 1,457 11.4%
1950 1,576 8.2%
1960 1,555 −1.3%
1970 1,547 −0.5%
1980 1,360 −12.1%
1990 1,197 −12.0%
2000 1,101 −8.0%
2010 868 −21.2%
2020 813 −6.3%
U.S. Decennial Census

2010 census

As of the census of 2010, there were 868 people, 452 households, and 240 families living in the city. The population density was 933.3 inhabitants per square mile (360.3/km2). There were 649 housing units at an average density of 697.8 per square mile (269.4/km2). The racial makeup of the city was 98.2% White, 0.2% Asian, and 1.6% from two or more races. Hispanic or Latino people of any race were 1.2% of the population.

There were 452 households, of which 13.9% had children under the age of 18 living with them, 43.6% were married couples living together, 6.2% had a female householder with no husband present, 3.3% had a male householder with no wife present, and 46.9% were non-families. 45.4% of all households were made up of individuals, and 31.4% had someone living alone who was 65 years of age or older. The average household size was 1.80 and the average family size was 2.45.

The median age in the city was 63.5 years. 13.2% of residents were under the age of 18; 2.3% were between the ages of 18 and 24; 9.6% were from 25 to 44; 27.3% were from 45 to 64; and 47.6% were 65 years of age or older. The gender makeup of the city was 43.5% male and 56.5% female.

Transportation

Eureka Municipal Airport is a city-owned, public-use airport located two nautical miles (4 km) north of the central business district of Eureka. It is also served by two state highways:

  • SD 10 (South Dakota Highway 10)
  • SD 47 (South Dakota Highway 47)

Notable people

  • Alice Bauer, former professional golfer, co-founder of the LPGA.
  • Marlene Bauer Hagge, former professional golfer, winner of 26 LPGA Tour events, co-founder of the LPGA.
  • Charles N. Herreid, Fourth Governor of South Dakota, Republican
  • Charles Hoffman, American politician and Republican member of the South Dakota House of Representatives.
  • Dean O. Mehlhaff, former American politician and Republican member of South Dakota house of representatives.
  • Al Neuharth, founder of USA Today, former chairman of Gannett Corp.
  • Kitty O'Neil, former Hollywood stuntwoman and former landspeed recordholder
  • Bill Scherr, former U.S. Olympic wrestler, bronze medalist in 1988 Summer Olympics.
  • Jim Scherr, former U.S. Olympic wrestler and former U.S. Olympic Committee CEO.
  • V. J. Smith, American politician, author, and motivational speaker.
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