2025 Compare Cities People:
Keystone, SD vs Vermillion, SD

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Highlights
- Vermillion is 0% more densely populated than Keystone.
- People are 41.6% less likely to be married in Vermillion.
- The Median Age is 13.8 years younger in Vermillion.
 Keystone, SDVermillion, SDUnited States
 Population  Unlock11,506329,725,481
 Female Population45.6%  Unlock50.5%
 Male Population54.4%  Unlock49.5%
 Median Age  Unlock2338.4
 space3
 Population - 2010334  Unlock309,327,143
 Population - 2000  Unlock9,765285,036,114
 Population - 1990232  Unlock251,960,433
 Pop. 2000 to Now  Unlock13.0%15.6%
 Pop. 1990 to Now51.7%  Unlock30.8%
 space4
 Population Density  Unlock2,519.493.4
 Land Area2.9  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Keystone, SDVermillion, SDUnited States
 Age 0 to 46.6%  Unlock5.9%
 Age 5 to 9  Unlock4.1%6.1%
 Age 10 to 146.0%  Unlock6.6%
 Age 15 to 17  Unlock1.7%3.9%
 Age 18 to 201.1%  Unlock4.0%
 Age 21 to 24  Unlock16.9%5.2%
 Age 25 to 346.0%  Unlock13.8%
 Age 35 to 44  Unlock8.1%12.9%
 Age 45 to 5410.4%  Unlock12.6%
 Age 55 to 59  Unlock1.8%6.7%
 Age 60 to 645.8%  Unlock6.3%
 Age 65 to 74  Unlock5.9%9.6%
 Age 75 to 844.5%  Unlock4.5%
 Age 85 and over  Unlock1.4%1.9%
 space1
 Race
 Keystone, SDVermillion, SDUnited States
 White66.1%  Unlock59.4%
 Black  Unlock2.0%12.2%
 Asian1.5%  Unlock5.6%
 Native American  Unlock4.0%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.5%0.4%
 Two or More Races7.7%  Unlock3.2%
 Hispanic  Unlock3.6%18.4%
 space2
 Marriage & Family
 Keystone, SDVermillion, SDUnited States
 Married Population51.7%  Unlock49.8%
     Currently Married  Unlock30.2%48.0%
 Married but Separated0.0%  Unlock1.8%
 Single Population  Unlock69.8%50.2%
 Never Married26.5%  Unlock33.8%
 Divorced  Unlock5.4%10.8%
 Widowed0.8%  Unlock5.6%
 space5
 Household Size  Unlock2.312.60
 Households152  Unlock124,010,992
 Family Households  Unlock1,73480,755,759
     Married couple, w/children51.0%  Unlock30.5%
     Married couple, no children  Unlock52.9%42.9%
 Non Family Households50  Unlock43,255,233
     Single householder, w/children  Unlock15.4%15.8%
     Single householder, no children1.0%  Unlock10.8%
Reviews for Keystone    0 Reviews

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Reviews for Vermillion    3 Reviews

Over 4 years ago

Not a bad place except for all the liberal cry babies here , they are actually more socialists than anything . The liberals here have big mouths when people are around  More

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Over 5 years ago

I attended USD and returned several years later, recognizing the quality of life Vermillion offers. It is a great example of what the best of small town living can be in  More

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The Good: The citizens of Vermillion boast one of the most liberal voting records in the state of SD. Vermillion has a reasonably educated population and is home to the  More

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