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2025 Compare Cities People:
Frederick, MD vs Boulder, CO

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Highlights
- Boulder is 0% more densely populated than Frederick.
- People are 33.3% less likely to be married in Boulder.
- The Median Age is 8.0 years younger in Boulder.
 Frederick, MDBoulder, COUnited States
 Population  Unlock104,930329,725,481
 Female Population51.0%  Unlock50.5%
 Male Population49.0%  Unlock49.5%
 Median Age  Unlock28.938.4
 space3
 Population - 201065,508  Unlock309,327,143
 Population - 2000  Unlock94,673285,036,114
 Population - 199040,148  Unlock251,960,433
 Pop. 2000 to Now  Unlock13.7%15.6%
 Pop. 1990 to Now82.6%  Unlock30.8%
 space4
 Population Density  Unlock3,991.493.4
 Land Area23.2  Unlock3,531,905.4
 Water Area  Unlock1.0264,836.8
 space
 Est. Total Population By Age
 Frederick, MDBoulder, COUnited States
 Age 0 to 45.9%  Unlock5.9%
 Age 5 to 9  Unlock3.7%6.1%
 Age 10 to 146.7%  Unlock6.6%
 Age 15 to 17  Unlock2.5%3.9%
 Age 18 to 203.6%  Unlock4.0%
 Age 21 to 24  Unlock13.8%5.2%
 Age 25 to 3415.7%  Unlock13.8%
 Age 35 to 44  Unlock10.3%12.9%
 Age 45 to 5413.1%  Unlock12.6%
 Age 55 to 59  Unlock4.5%6.7%
 Age 60 to 645.0%  Unlock6.3%
 Age 65 to 74  Unlock7.0%9.6%
 Age 75 to 843.9%  Unlock4.5%
 Age 85 and over  Unlock1.8%1.9%
 space1
 Race
 Frederick, MDBoulder, COUnited States
 White54.9%  Unlock59.4%
 Black  Unlock1.0%12.2%
 Asian5.1%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.3%0.4%
 Two or More Races4.9%  Unlock3.2%
 Hispanic  Unlock10.6%18.4%
 space2
 Marriage & Family
 Frederick, MDBoulder, COUnited States
 Married Population47.9%  Unlock49.8%
     Currently Married  Unlock31.2%48.0%
 Married but Separated2.2%  Unlock1.8%
 Single Population  Unlock68.1%50.2%
 Never Married35.0%  Unlock33.8%
 Divorced  Unlock9.5%10.8%
 Widowed5.4%  Unlock5.6%
 space5
 Household Size  Unlock2.212.60
 Households30,644  Unlock124,010,992
 Family Households  Unlock17,34180,755,759
     Married couple, w/children34.7%  Unlock30.5%
     Married couple, no children  Unlock47.4%42.9%
 Non Family Households11,958  Unlock43,255,233
     Single householder, w/children  Unlock10.8%15.8%
     Single householder, no children11.4%  Unlock10.8%
Voting
Reviews for Frederick    19 Reviews
dee · Frederick, MD
not so good
Over 6 years ago

I have been here 28 years,working in D.C with 3-4 hour commute ,one highway only to travel.Traffic is awful 24-7.Abandoned shopping centers for 10-15 years,& other  More

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Nicole · Frederick, MD
Sr. Health Claims Examiner salary
Over 10 years ago

Company with the most  More

   |    Reply
George · Frederick, MD
Frederick Crime
Over 11 years ago

Crime seems to be pretty low here. Police do an excellent  More

   |    Reply

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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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Learn More About Frederick, Maryland
Overview
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