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2026 Compare Cities People:
Round Rock, TX vs Duncan, OK

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Highlights
- Duncan is 0% more densely populated than Round Rock.
- People are 2.5% less likely to be married in Duncan.
- The Median Age is 3.1 years older in Duncan.
 Round Rock, TXDuncan, OKUnited States
 Population  Unlock22,664329,725,481
 Female Population50.8%  Unlock50.5%
 Male Population49.2%  Unlock49.5%
 Median Age  Unlock38.738.4
 space3
 Population - 2010100,774  Unlock309,327,143
 Population - 2000  Unlock22,505285,036,114
 Population - 199030,923  Unlock251,960,433
 Pop. 2000 to Now  Unlock-1.1%15.6%
 Pop. 1990 to Now344.9%  Unlock30.8%
 space4
 Population Density  Unlock528.693.4
 Land Area36.1  Unlock3,531,905.4
 Water Area  Unlock4.9264,836.8
 space
 Est. Total Population By Age
 Round Rock, TXDuncan, OKUnited States
 Age 0 to 45.9%  Unlock5.9%
 Age 5 to 9  Unlock6.7%6.1%
 Age 10 to 147.8%  Unlock6.6%
 Age 15 to 17  Unlock3.9%3.9%
 Age 18 to 203.5%  Unlock4.0%
 Age 21 to 24  Unlock4.1%5.2%
 Age 25 to 3413.9%  Unlock13.8%
 Age 35 to 44  Unlock11.6%12.9%
 Age 45 to 5414.2%  Unlock12.6%
 Age 55 to 59  Unlock6.3%6.7%
 Age 60 to 644.7%  Unlock6.3%
 Age 65 to 74  Unlock11.1%9.6%
 Age 75 to 841.9%  Unlock4.5%
 Age 85 and over  Unlock2.7%1.9%
 space1
 Race
 Round Rock, TXDuncan, OKUnited States
 White50.5%  Unlock59.4%
 Black  Unlock2.5%12.2%
 Asian6.9%  Unlock5.6%
 Native American  Unlock3.6%0.6%
 Hawaiian, Pacific Islander0.2%  Unlock0.2%
 Other  Unlock0.3%0.4%
 Two or More Races3.5%  Unlock3.2%
 Hispanic  Unlock11.1%18.4%
 space2
 Marriage & Family
 Round Rock, TXDuncan, OKUnited States
 Married Population52.7%  Unlock49.8%
     Currently Married  Unlock49.5%48.0%
 Married but Separated1.5%  Unlock1.8%
 Single Population  Unlock48.7%50.2%
 Never Married31.8%  Unlock33.8%
 Divorced  Unlock14.0%10.8%
 Widowed4.0%  Unlock5.6%
 space5
 Household Size  Unlock2.492.60
 Households43,705  Unlock124,010,992
 Family Households  Unlock5,73080,755,759
     Married couple, w/children42.0%  Unlock30.5%
     Married couple, no children  Unlock43.4%42.9%
 Non Family Households12,976  Unlock43,255,233
     Single householder, w/children  Unlock17.6%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

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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 Duncan    9 Reviews
Ginger · Duncan, OK
Duncan is what you make it!
Over 9 years ago

Small towns can be limiting on things to do, but if you look, you can find it. Lawton and OKC, which is not very far, offers more places to eat, shop, and concerts.  More

   |    Reply
Janie · Duncan, OK
If you dont like it LEAVE
Over 15 years ago

THEN DO THE REST OF US A FAVOR AND LEAVE! I moved here from California and I absolutely love it here. But I gues that since I am not an ARTSY FARTSY YUPPIE I probably  More

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Janie · Duncan, OK
I love it here!
Over 15 years ago

I Love Duncan - So much nicer than  More

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Learn More About Round Rock, Texas
Overview
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Learn More About Duncan, Oklahoma
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