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Surprise Valley township, Mellette County, SD

50 Population
33.5 square miles 1.5 people per square mile

Census data: ACS 2024 5-year unless noted

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Demographics

72.3 ±6.3 Median age
  • nearly double the figure in Mellette County: 37.5 ±2.8
  • nearly double the figure in South Dakota: 38 ±0.2
  • nearly double the figure in United States: 38.9 ±0.1

Economics

$66,042 ±$49,481 Per capita income
  • more than double the amount in Mellette County: $25,614 † ±$5,232
  • more than 1.5 times the amount in South Dakota: $40,550 ±$520
  • about 1.5 times the amount in United States: $44,673 ±$122
N/A Median household income

N/A Persons below poverty line

N/A

Families

30 ±28 Number of households
  • Mellette County: 641 ±62
  • South Dakota: 365,544 ±1,728
  • United States: 129,227,496 ±209,365
1.7 ±0.2 (50  ±47) Persons per household
  • about three-fifths of the figure in Mellette County: 3 1,897 (±0.2 / ±210)
  • about two-thirds of the figure in South Dakota: 2.4 875,241
  • about two-thirds of the figure in United States: 2.5 326,722,430

N/A Women 15-50 who gave birth during past year

Housing

30 ±28 Number of housing units
  • Mellette County: 779 ±53
  • South Dakota: 408,584 ±422
  • United States: 143,775,360 ±10,234

N/A Median value of owner-occupied housing units

N/A Moved since previous year

Social

100% ±23.8% (50  ±48.5) High school grad or higher
  • about 20 percent higher than the rate in Mellette County: 83.5% † 1,055 (±9% / ±142.6)
  • about 10 percent higher than the rate in South Dakota: 93.2% 562,448 (±0.9% / ±5,163.6)
  • about 10 percent higher than the rate in United States: 89.6% 206,814,894 (±0.1% / ±283,951.7)
16% ±54.5% (8  ±28.3) Bachelor's degree or higher
  • about 80 percent of the rate in Mellette County: 19.2% † 242 (±4.5% / ±59.7)
  • about half the rate in South Dakota: 31.9% 192,610 (±0.5% / ±3,182.5)
  • about half the rate in United States: 35.7% 82,363,217 (±0.1% / ±182,857.7)

N/A Persons with language other than English spoken at home

N/A Foreign-born population

N/A Population with veteran status
N/A Total veterans ±10 N/A Male ±10 N/A Female ±10

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