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2026 Compare Cities People:
Williamson, AZ vs Oro Valley, AZ

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Highlights
- Oro Valley is 0% more densely populated than Williamson.
- People are 18.0% less likely to be married in Oro Valley.
- The Median Age is 11.2 years younger in Oro Valley.
 Williamson, AZOro Valley, AZUnited States
 Population  Unlock46,515329,725,481
 Female Population51.4%  Unlock50.5%
 Male Population48.6%  Unlock49.5%
 Median Age  Unlock53.938.4
 space3
 Population - 20105,509  Unlock309,327,143
 Population - 2000  Unlock29,700285,036,114
 Population - 19902,582  Unlock251,960,433
 Pop. 2000 to Now  Unlock57.2%15.6%
 Pop. 1990 to Now115.0%  Unlock30.8%
 space4
 Population Density  Unlock1,305.493.4
 Land Area56.9  Unlock3,531,905.4
 Water Area  Unlock0.1264,836.8
 space
 Est. Total Population By Age
 Williamson, AZOro Valley, AZUnited States
 Age 0 to 40.1%  Unlock5.9%
 Age 5 to 9  Unlock5.6%6.1%
 Age 10 to 143.9%  Unlock6.6%
 Age 15 to 17  Unlock3.5%3.9%
 Age 18 to 201.2%  Unlock4.0%
 Age 21 to 24  Unlock3.5%5.2%
 Age 25 to 341.6%  Unlock13.8%
 Age 35 to 44  Unlock9.3%12.9%
 Age 45 to 5410.7%  Unlock12.6%
 Age 55 to 59  Unlock6.6%6.7%
 Age 60 to 6412.5%  Unlock6.3%
 Age 65 to 74  Unlock19.6%9.6%
 Age 75 to 8413.8%  Unlock4.5%
 Age 85 and over  Unlock4.3%1.9%
 space1
 Race
 Williamson, AZOro Valley, AZUnited States
 White95.7%  Unlock59.4%
 Black  Unlock2.3%12.2%
 Asian0.0%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.1%0.4%
 Two or More Races0.9%  Unlock3.2%
 Hispanic  Unlock15.4%18.4%
 space2
 Marriage & Family
 Williamson, AZOro Valley, AZUnited States
 Married Population79.0%  Unlock49.8%
     Currently Married  Unlock63.9%48.0%
 Married but Separated0.2%  Unlock1.8%
 Single Population  Unlock35.3%50.2%
 Never Married10.0%  Unlock33.8%
 Divorced  Unlock10.1%10.8%
 Widowed3.8%  Unlock5.6%
 space5
 Household Size  Unlock2.242.60
 Households2,684  Unlock124,010,992
 Family Households  Unlock14,06080,755,759
     Married couple, w/children8.7%  Unlock30.5%
     Married couple, no children  Unlock64.5%42.9%
 Non Family Households553  Unlock43,255,233
     Single householder, w/children  Unlock7.0%15.8%
     Single householder, no children2.4%  Unlock10.8%
Voting
Reviews for Williamson    1 Reviews
Terri · Prescott, AZ
Williamson
Over 9 years ago

Williamson, Az one of the best kept secrets located approximately 15 minutes North of Prescott's Famous Town Square. A place to find quiet and calm, a place where you  More

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Reviews for Oro Valley    5 Reviews
Abhd · Tucson, AZ
Oro Valley is so much less than advertised
Over 13 years ago

Some of these reviews are so inaccurate. Rentals for a 2-bedroom are closer to $1000/mo and up if you want to live in a safer neighborhood. People here are so intolerant  More

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John · Tucson, AZ
A dry heat
Over 16 years ago

I have lived here in Oro Valley for 3.8 years -love it here. however lack of cultural diversity, water and the 100+ heat each day for 3 months a year means that i am  More

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John · Middle Island, NY
Oro Valley, AZ - great place to live
Over 16 years ago

I am a retiree from New York. I moved to Tucson two years ago. Now we are about to buy a home in Oro Valley, just north of Tucson. I love this area. The mountains  More

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Learn More About Williamson, Arizona
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