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2026 Compare Cities People:
Round Rock, TX vs Frederick, MD

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Highlights
- Frederick is 0% more densely populated than Round Rock.
- People are 9.1% less likely to be married in Frederick.
- The Median Age is 1.3 years older in Frederick.
 Round Rock, TXFrederick, MDUnited States
 Population  Unlock76,376329,725,481
 Female Population50.8%  Unlock50.5%
 Male Population49.2%  Unlock49.5%
 Median Age  Unlock36.938.4
 space3
 Population - 2010100,774  Unlock309,327,143
 Population - 2000  Unlock52,767285,036,114
 Population - 199030,923  Unlock251,960,433
 Pop. 2000 to Now  Unlock38.9%15.6%
 Pop. 1990 to Now344.9%  Unlock30.8%
 space4
 Population Density  Unlock3,297.393.4
 Land Area36.1  Unlock3,531,905.4
 Water Area  Unlock0.2264,836.8
 space
 Est. Total Population By Age
 Round Rock, TXFrederick, MDUnited States
 Age 0 to 45.9%  Unlock5.9%
 Age 5 to 9  Unlock5.8%6.1%
 Age 10 to 147.8%  Unlock6.6%
 Age 15 to 17  Unlock3.7%3.9%
 Age 18 to 203.5%  Unlock4.0%
 Age 21 to 24  Unlock5.5%5.2%
 Age 25 to 3413.9%  Unlock13.8%
 Age 35 to 44  Unlock14.3%12.9%
 Age 45 to 5414.2%  Unlock12.6%
 Age 55 to 59  Unlock6.9%6.7%
 Age 60 to 644.7%  Unlock6.3%
 Age 65 to 74  Unlock8.0%9.6%
 Age 75 to 841.9%  Unlock4.5%
 Age 85 and over  Unlock1.8%1.9%
 space1
 Race
 Round Rock, TXFrederick, MDUnited States
 White50.5%  Unlock59.4%
 Black  Unlock17.1%12.2%
 Asian6.9%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.2%  Unlock0.2%
 Other  Unlock0.2%0.4%
 Two or More Races3.5%  Unlock3.2%
 Hispanic  Unlock17.5%18.4%
 space2
 Marriage & Family
 Round Rock, TXFrederick, MDUnited States
 Married Population52.7%  Unlock49.8%
     Currently Married  Unlock45.7%48.0%
 Married but Separated1.5%  Unlock1.8%
 Single Population  Unlock52.1%50.2%
 Never Married31.8%  Unlock33.8%
 Divorced  Unlock11.7%10.8%
 Widowed4.0%  Unlock5.6%
 space5
 Household Size  Unlock2.432.60
 Households43,705  Unlock124,010,992
 Family Households  Unlock18,68680,755,759
     Married couple, w/children42.0%  Unlock30.5%
     Married couple, no children  Unlock35.7%42.9%
 Non Family Households12,976  Unlock43,255,233
     Single householder, w/children  Unlock18.2%15.8%
     Single householder, no children10.3%  Unlock10.8%
Voting
Reviews for Round Rock    28 Reviews
Josh · Amarillo, TX
Relocation to Round Rock Area
Over 10 years ago

I plan on relocating from Amarillo to Round Rock or one of the suburbs north of Austin with my wife and kids. I would like to know what people can tell me about the job  More

   |    Reply
Brittany · Austin, TX
Market data for Round Rock
Over 10 years ago

Round Rock has a booming real estate market. It is one of the fastest growing communities in America. If you need more info about home buying in Round Rock, or anywhere  More

   |    Reply
M. · Ogden, UT
moved from Southern California to Round Rock TX
Over 12 years ago

We moved from Southern CA, we first lived at beach for many years in SD, then high desert (Hesperia). BEST MOVE I'VE EVER MADE IN MY LIFE!! The weather is great, the  More

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Reviews for Frederick    19 Reviews
dee · Frederick, MD
not so good
Over 7 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

   |    Reply
Nicole · Frederick, MD
Sr. Health Claims Examiner salary
Over 11 years ago

Company with the most  More

   |    Reply
George · Frederick, MD
Frederick Crime
Over 12 years ago

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

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Learn More About Round Rock, Texas
Overview
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Learn More About Frederick, Maryland
Overview
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