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2025 Compare Cities People:
Boulder, CO vs Hays, KS

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Highlights
- Hays is 0% more densely populated than Boulder.
- People are 44.1% more likely to be married in Hays.
- The Median Age is 3.6 years older in Hays.
 Boulder, COHays, KSUnited States
 Population  Unlock20,870329,725,481
 Female Population48.5%  Unlock50.5%
 Male Population51.5%  Unlock49.5%
 Median Age  Unlock32.538.4
 space3
 Population - 201097,724  Unlock309,327,143
 Population - 2000  Unlock20,013285,036,114
 Population - 199083,312  Unlock251,960,433
 Pop. 2000 to Now  Unlock4.1%15.6%
 Pop. 1990 to Now29.2%  Unlock30.8%
 space4
 Population Density  Unlock2,488.793.4
 Land Area26.3  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Boulder, COHays, KSUnited States
 Age 0 to 42.7%  Unlock5.9%
 Age 5 to 9  Unlock6.1%6.1%
 Age 10 to 143.6%  Unlock6.6%
 Age 15 to 17  Unlock2.7%3.9%
 Age 18 to 2016.2%  Unlock4.0%
 Age 21 to 24  Unlock11.3%5.2%
 Age 25 to 3416.3%  Unlock13.8%
 Age 35 to 44  Unlock11.6%12.9%
 Age 45 to 5410.3%  Unlock12.6%
 Age 55 to 59  Unlock4.0%6.7%
 Age 60 to 644.2%  Unlock6.3%
 Age 65 to 74  Unlock8.6%9.6%
 Age 75 to 843.1%  Unlock4.5%
 Age 85 and over  Unlock3.1%1.9%
 space1
 Race
 Boulder, COHays, KSUnited States
 White78.3%  Unlock59.4%
 Black  Unlock0.8%12.2%
 Asian5.9%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.1%0.4%
 Two or More Races3.5%  Unlock3.2%
 Hispanic  Unlock6.1%18.4%
 space2
 Marriage & Family
 Boulder, COHays, KSUnited States
 Married Population31.9%  Unlock49.8%
     Currently Married  Unlock45.3%48.0%
 Married but Separated0.7%  Unlock1.8%
 Single Population  Unlock54.0%50.2%
 Never Married56.1%  Unlock33.8%
 Divorced  Unlock8.1%10.8%
 Widowed2.5%  Unlock5.6%
 space5
 Household Size  Unlock2.302.60
 Households42,610  Unlock124,010,992
 Family Households  Unlock4,70380,755,759
     Married couple, w/children33.3%  Unlock30.5%
     Married couple, no children  Unlock44.4%42.9%
 Non Family Households25,269  Unlock43,255,233
     Single householder, w/children  Unlock13.3%15.8%
     Single householder, no children8.5%  Unlock10.8%
Voting
Reviews for Boulder    55 Reviews
Guess · Boulder, CO
Expensive and requires liking a unique culture
Over 4 years ago

Outside of the university, Boulder had a very distinctive "wealthy hippy" feel. A lot of alternative medicine and a matching ethos. This is changing some among my  More

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Linda · Boulder, CO
I love it here! Such a beautiful and friendly city
Over 5 years ago

We moved here from Texas about 4 years ago and love it here! The amazing sense of community and high regard for the environment are two of the main reasons we love  More

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H · Denver, CO
Snob says it's ok
Over 5 years ago

Most people do much worse than Boulder. I'm the most critical person I've ever met who is never happy or satisfied -- so that's a pretty huge compliment.   More

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Reviews for Hays    1 Reviews
Clint · Barry, IL
Hays - Pros/Cons
Over 17 years ago

Pros: 1. Low crime rate 2. Low cost of living and housing 3. Affordable place to live 4. Good school system 5. A good place to live and raise a family Cons: 1.  More

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Learn More About Boulder, Colorado
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