2026 Compare Cities People:
Sioux City, IA vs Bismarck, ND

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Highlights
- Bismarck is 0% more densely populated than Sioux City.
- People are 4.9% more likely to be married in Bismarck.
- The Median Age is 2.8 years older in Bismarck.
 Sioux City, IABismarck, NDUnited States
 Population  Unlock73,321329,725,481
 Female Population50.0%  Unlock50.5%
 Male Population50.0%  Unlock49.5%
 Median Age  Unlock37.638.4
 space3
 Population - 201082,855  Unlock309,327,143
 Population - 2000  Unlock55,532285,036,114
 Population - 199080,505  Unlock251,960,433
 Pop. 2000 to Now  Unlock33.3%15.6%
 Pop. 1990 to Now2.8%  Unlock30.8%
 space4
 Population Density  Unlock2,173.393.4
 Land Area58.4  Unlock3,531,905.4
 Water Area  Unlock0.5264,836.8
 space
 Est. Total Population By Age
 Sioux City, IABismarck, NDUnited States
 Age 0 to 47.3%  Unlock5.9%
 Age 5 to 9  Unlock6.2%6.1%
 Age 10 to 147.4%  Unlock6.6%
 Age 15 to 17  Unlock3.5%3.9%
 Age 18 to 205.1%  Unlock4.0%
 Age 21 to 24  Unlock5.0%5.2%
 Age 25 to 3413.0%  Unlock13.8%
 Age 35 to 44  Unlock13.4%12.9%
 Age 45 to 5411.8%  Unlock12.6%
 Age 55 to 59  Unlock5.9%6.7%
 Age 60 to 645.5%  Unlock6.3%
 Age 65 to 74  Unlock9.3%9.6%
 Age 75 to 843.9%  Unlock4.5%
 Age 85 and over  Unlock2.7%1.9%
 space1
 Race
 Sioux City, IABismarck, NDUnited States
 White65.0%  Unlock59.4%
 Black  Unlock2.6%12.2%
 Asian2.9%  Unlock5.6%
 Native American  Unlock4.4%0.6%
 Hawaiian, Pacific Islander0.5%  Unlock0.2%
 Other  Unlock0.1%0.4%
 Two or More Races4.1%  Unlock3.2%
 Hispanic  Unlock2.4%18.4%
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 Marriage & Family
 Sioux City, IABismarck, NDUnited States
 Married Population47.1%  Unlock49.8%
     Currently Married  Unlock48.5%48.0%
 Married but Separated2.0%  Unlock1.8%
 Single Population  Unlock50.6%50.2%
 Never Married35.8%  Unlock33.8%
 Divorced  Unlock11.4%10.8%
 Widowed5.1%  Unlock5.6%
 space5
 Household Size  Unlock2.282.60
 Households32,051  Unlock124,010,992
 Family Households  Unlock17,99780,755,759
     Married couple, w/children29.9%  Unlock30.5%
     Married couple, no children  Unlock45.2%42.9%
 Non Family Households11,876  Unlock43,255,233
     Single householder, w/children  Unlock16.6%15.8%
     Single householder, no children9.2%  Unlock10.8%
Reviews for Sioux City    12 Reviews

Over 8 years ago

I’ve been here only 4 months and I’m still shocked at how people behave. Not friendly, rude. Can’t tell you how many businesses I’ve been in to where the reception staff  More

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Climate in winter ranges from 10-15 degrees to 85+ in the summer 7% sale tax population @75,000, economy ok  More

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Over 15 years ago

Sioux City is an amazing place. Low crime rate, Great Schools, Great People, Most People are friendly and Polite. Just an overall great place to live!!!!!!!!!!!   More

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Reviews for Bismarck    14 Reviews

I have lived in many places throughout the U.S. I came here with my job and can't wait to leave. This city may be right for some people, but it's definitely not for  More

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I have lived in a small town about 45 minutes away from Bismarck and then moved to University of Mary 5 years ago and have lived in Bismarck ever since. I am still at  More

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Over 10 years ago

What is fun about Bismarck much anything around to go too ? such as lakes parks good fishing and other things resorts and casinos  More

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