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About San Tan Valley, Arizona


San Tan Valley is Pinal County’s newest and largest community with residents and businesses that focus on being business and family-friendly.

About an hour east of Phoenix, the bedroom community of San Tan Valley offers the subtleness of a quaint community with hiking trails, beautiful dark skies, golf, and more. The community is nestled among the foothills of the San Tan Mountains and boasts a wonderful park and recreation area, the San Tan Mountain Park. Over 120,000 people, of all ages, call San Tan Valley home with a variety of golf communities, age-restricted communities, and family neighborhoods.

Before 2009, the community lacked any official name and residents used nearby Queen Creek for their mailing addresses. On June 23, 2009, residents had the opportunity to vote on a name for the community, and the area became known as San Tan Valley, AZ.

As of the 2020 census, San Tan Valley was one of the fastest-growing communities in the second fastest-growing county in the country. The possibilities are endless and our growth is exceptional. We invite our residents, businesses, and visitors to embrace the area’s opportunities for growth and advancement.

Is San Tan Valley an incorporated town or city?

No, we are not. San Tan Valley is a census-designated place (CDP) in Northeastern Pinal County.  

How was San Tan Valley named?

A public vote was taken online and by paper ballot from Friday, June 19, 2009, until Monday, June 22, 2009. A committee of people gathered to count ballots and witness the ballots being counted and the name was announced on Tuesday, June 23, 2009. 

The name “San Tan Valley” garnered 18 percent of the vote, beating 23 other names that had been recommended for the ballot. The Greater San Tan Area Coalition organized the voting and established the website. The Coalition also sponsored a public meeting on Monday, June 22 at the Circle Cross Ranch K-8 School to discuss the name and vote.  While boundaries were drawn for the last incorporation effort, all of the unincorporated land in northeastern Pinal County, not part of Florence, Queen Creek, Apache Junction, or Gold Canyon (also unincorporated), is considered San Tan Valley.

If my zip code is 85142, am I in San Tan Valley?

Prior to July 1, 2023, the zip code 85142 was in both San Tan Valley & the Town of Queen Creek. As zip codes are determined by the USPS and have no association with city or county boundaries, it is very common for a zip code to be used by more than one community. The USPS however added a new 85144 zip code to San Tan Valley, effective July 1, 2023, that covers all of the addresses in Pinal County that were previously 81542. The zip code 85142 is no longer a zip code in Pinal County and is only used for addresses in Maricopa County, which includes a large portion of Queen Creek.

At this time San Tan Valley includes the zip codes 85140, 85143, 85144, and 85132.  The zip code of 85132 extends into the Town of Florence and the zip code of 85140 is also shared with parts of the Town of Queen Creek, located in Pinal County.   If you are unsure if you reside in a town boundary, or in San Tan Valley, check out this article or text your address to 602.348.0238 and we'll help. 

San Tan Valley at a Glance

Located about an hour southeast of Phoenix, San Tan Valley is one of the fastest-growing communities in the second fastest-growing county in the country.

With over 120,000 residents, San Tan Valley offers a young and affluent population diverse in ethnicity and religion but with a common desire for a safe, healthy, educated, and family-oriented community. San Tan Valley residents are invested in the quality of life that comes with a clean, safe, and vibrant community.

Our community’s amenities include the availability of grand, custom homes in beautifully planned communities, large acreage lots, dark skies, amazing sunsets, and sunrises, easy access to beautiful hiking and biking trails, and a growing business community.

San Tan Valley boasts a high school graduation rate exceeding 91% and offers access to two district school systems, as well as several charter schools and post-secondary options.

About San Tan Valley, Arizona

Founded 2009

Population 99,894 (April 2020)

Average household income ............... $61,177

Average household size ........................... 3.09

Average age .................................... 34.7 years

High School Graduation Rate ............ 92.7%

Bachelor’s degree or higher ................. 22.3%

Transaction Privilege & Use Tax

Total ..................................................... 6.7%

State of Arizona ................................... 5.6%

Pinal County ........................................ 1.1%

Primary Property Tax Rate: $3.56 per $100 assessed valuation based on 10% of the full cash value of residential property

Average Temperature (High/Low)

January 65F / 39F

April 84F / 51F

July 104F / 76F

October 87F / 57F


Phoenix-Mesa Gateway Airport is located 12 miles west of San Tan Valley and is served by Allegiant and Frontier Airlines as well as private air travel providers.

Sky Harbor International Airport is located 40 miles west of San Tan Valley and is served by 21 airlines.

Distance to Major Cities

Phoenix .....45 miles

Tucson ...... 87 miles 

Flagstaff .....192 miles

Local Businesses can be found here 

Census 2020 Information:

San Tan Valley - Total Population:  99,894


  • White alone, percent    79.2%
  • Black or African American alone    2.8%
  • American Indian and Alaska Native alone    2.1%
  • Asian alone    2.0%
  • Native Hawaiian and Other Pacific Islander alone    0.2%
  • Two or More Races    8.9%
  • Hispanic or Latino    25.8%
  • White alone, not Hispanic or Latino    63.8%

Pinal County

  • Population 2020 - 480,828
  • Population in 2010 - 375,770
  • Population in 2000 - 179,727


  • Population in 2020 - 7,421,000
  • Population in 2010 - 6,392,017
  • Population in 2000 - 5,130,632
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Truth in Taxation Hearing Notice of Tax Increase

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Tuesday, 16 July 2024

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Mailing Address:
530 E Hunt Hwy
Ste 103-262
San Tan Valley, AZ 85143

Text: 602.348.0238 is your #1 resource for anything in and around San Tan Valley, AZ. Focusing on uniting and promoting all that San Tan Valley has to offer for our visitors and residents, provides you with local area information & events, local business information, news, traffic alerts, and more!

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