2025 Compare Cities People:
Kennewick, WA vs Rolla, MO

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Highlights
- Rolla is 0% more densely populated than Kennewick.
- People are 29.6% less likely to be married in Rolla.
- The Median Age is 7.0 years younger in Rolla.
 Kennewick, WARolla, MOUnited States
 Population  Unlock19,949329,725,481
 Female Population50.5%  Unlock50.5%
 Male Population49.5%  Unlock49.5%
 Median Age  Unlock28.338.4
 space3
 Population - 201074,448  Unlock309,327,143
 Population - 2000  Unlock16,367285,036,114
 Population - 199042,155  Unlock251,960,433
 Pop. 2000 to Now  Unlock24.9%15.6%
 Pop. 1990 to Now100.5%  Unlock30.8%
 space4
 Population Density  Unlock1,655.793.4
 Land Area27.4  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Kennewick, WARolla, MOUnited States
 Age 0 to 47.4%  Unlock5.9%
 Age 5 to 9  Unlock5.0%6.1%
 Age 10 to 146.4%  Unlock6.6%
 Age 15 to 17  Unlock2.4%3.9%
 Age 18 to 203.8%  Unlock4.0%
 Age 21 to 24  Unlock11.1%5.2%
 Age 25 to 3414.7%  Unlock13.8%
 Age 35 to 44  Unlock9.3%12.9%
 Age 45 to 5410.4%  Unlock12.6%
 Age 55 to 59  Unlock4.4%6.7%
 Age 60 to 646.2%  Unlock6.3%
 Age 65 to 74  Unlock6.9%9.6%
 Age 75 to 843.8%  Unlock4.5%
 Age 85 and over  Unlock2.2%1.9%
 space1
 Race
 Kennewick, WARolla, MOUnited States
 White62.7%  Unlock59.4%
 Black  Unlock3.0%12.2%
 Asian2.3%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.6%0.4%
 Two or More Races3.0%  Unlock3.2%
 Hispanic  Unlock3.1%18.4%
 space2
 Marriage & Family
 Kennewick, WARolla, MOUnited States
 Married Population51.2%  Unlock49.8%
     Currently Married  Unlock34.6%48.0%
 Married but Separated1.5%  Unlock1.8%
 Single Population  Unlock63.9%50.2%
 Never Married31.2%  Unlock33.8%
 Divorced  Unlock11.8%10.8%
 Widowed4.3%  Unlock5.6%
 space5
 Household Size  Unlock2.052.60
 Households30,382  Unlock124,010,992
 Family Households  Unlock4,06680,755,759
     Married couple, w/children29.1%  Unlock30.5%
     Married couple, no children  Unlock41.8%42.9%
 Non Family Households9,588  Unlock43,255,233
     Single householder, w/children  Unlock23.3%15.8%
     Single householder, no children9.8%  Unlock10.8%
Reviews for Kennewick    24 Reviews

Born here and lived most of my 48 years here. If people haven't gotten out and explored the versatility of this place to entertain a population at my levels and options  More

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I have lived here a few years and it’s the worst place I’ve ever been. The “ nice weather” people refer to is 100 degree hot can’t even stand outside at 9am without  More

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Over 4 years ago

I’ve lived here for 30 years. Very good place to live. Three major rivers meet here. The Columbia, Snake and Yakima rivers. So if you like fishing or boating it’s a  More

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Reviews for Rolla    11 Reviews

Over 13 years ago

Rolla is somewhat dominated by missouri S&T (Missouri University of Science &Technology) formerly known as UMR. The student population is huge. This year alone there are  More

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When looking for a comfortable temporary home for an educational pit stop along the road of life, Rolla is a great place to do so. With our blue ribbon elementary  More

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Rolla is a great place to live, but it is getting worse. There are too many outsiders, imports, transplants from other states, interlopers moving in here. All they want  More

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