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2025 Compare Cities People:
Duncan, AZ vs Sierra Vista, AZ

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Highlights
- Sierra Vista is 0% more densely populated than Duncan.
- People are 10.5% more likely to be married in Sierra Vista.
- The Median Age is 6.2 years older in Sierra Vista.
 Duncan, AZSierra Vista, AZUnited States
 Population  Unlock44,944329,725,481
 Female Population50.3%  Unlock50.5%
 Male Population49.7%  Unlock49.5%
 Median Age  Unlock37.338.4
 space3
 Population - 2010689  Unlock309,327,143
 Population - 2000  Unlock37,775285,036,114
 Population - 1990662  Unlock251,960,433
 Pop. 2000 to Now  Unlock16.3%15.6%
 Pop. 1990 to Now16.9%  Unlock30.8%
 space4
 Population Density  Unlock295.393.4
 Land Area2.2  Unlock3,531,905.4
 Water Area  Unlock0.3264,836.8
 space
 Est. Total Population By Age
 Duncan, AZSierra Vista, AZUnited States
 Age 0 to 412.2%  Unlock5.9%
 Age 5 to 9  Unlock7.1%6.1%
 Age 10 to 1410.2%  Unlock6.6%
 Age 15 to 17  Unlock3.3%3.9%
 Age 18 to 204.1%  Unlock4.0%
 Age 21 to 24  Unlock6.1%5.2%
 Age 25 to 345.1%  Unlock13.8%
 Age 35 to 44  Unlock13.0%12.9%
 Age 45 to 549.9%  Unlock12.6%
 Age 55 to 59  Unlock5.3%6.7%
 Age 60 to 645.1%  Unlock6.3%
 Age 65 to 74  Unlock10.4%9.6%
 Age 75 to 845.7%  Unlock4.5%
 Age 85 and over  Unlock2.5%1.9%
 space1
 Race
 Duncan, AZSierra Vista, AZUnited States
 White67.0%  Unlock59.4%
 Black  Unlock6.6%12.2%
 Asian0.0%  Unlock5.6%
 Native American  Unlock0.6%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.1%0.4%
 Two or More Races1.5%  Unlock3.2%
 Hispanic  Unlock24.5%18.4%
 space2
 Marriage & Family
 Duncan, AZSierra Vista, AZUnited States
 Married Population47.8%  Unlock49.8%
     Currently Married  Unlock51.5%48.0%
 Married but Separated6.4%  Unlock1.8%
 Single Population  Unlock47.2%50.2%
 Never Married29.6%  Unlock33.8%
 Divorced  Unlock12.8%10.8%
 Widowed8.3%  Unlock5.6%
 space5
 Household Size  Unlock2.362.60
 Households274  Unlock124,010,992
 Family Households  Unlock11,24880,755,759
     Married couple, w/children29.0%  Unlock30.5%
     Married couple, no children  Unlock45.0%42.9%
 Non Family Households91  Unlock43,255,233
     Single householder, w/children  Unlock16.7%15.8%
     Single householder, no children10.9%  Unlock10.8%
Voting
Reviews for Duncan    1 Reviews
Jonathan  · San Antonio, TX
Duncan
Over 7 years ago

I know that it was founded in  More

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Reviews for Sierra Vista    30 Reviews
Beth · Sierra Vista, AZ
A Town that would rather die than improve.
Over 1 years ago

I've lived in Sierra Vista for 22 months. It has positives and negatives. Bisbee, Tombstone, being close to Tucson, are positives. The views are beautiful. There's lots  More

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June · Santa Rosa, CA
Nice place
Over 3 years ago

Nice town, quite, huge military community and snowbirds in winter. If you want to live where you can not be mugged and have beautiful views for miles, this is the  More

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Carol · Sierra Vista, AZ
Sunny Days, Breezy Eves
Over 3 years ago

I have lived in Sierra Vista 3 years and for 6 months, in the town north of S.V. sierra Vista lives up to its name with gorgeous mountains encircling you and sunrises  More

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Learn More About Duncan, Arizona
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Learn More About Sierra Vista, Arizona
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