San Tan Valley, Arizona Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
San Tan Valley, AZ Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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B
Health Around average
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B
Income Around average
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D
Education Well below average
Source: Map AI Methodology
Population
| Metric | San Tan Valley | Arizona Avg | U.S. Average |
|---|---|---|---|
| Population | 102,207 | 7,356,359 | 337,468,954 |
| Population density (per sq mi) | 1348.5 | 64.6 | 86.4 |
| Population growth (%/yr) | 3.36% | 1.15% | 0.59% |
| Median age | 35.6 | 37.3 | 37.3 |
| Households | 32,292 | 2,847,012 | 130,235,071 |
Population in San Tan Valley grew by 411.3% from 2009 to 2024, reaching 102,207 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in San Tan Valley is Millennials, aged 29–44, at 25.6% of residents. That is 4.1 points above Arizona as a whole.
- Gen Z 13–28 22,178 21.7% -0.6 pts
- Millennials 29–44 26,216 25.6% +4.1 pts
- Gen X 45–60 17,039 16.7% -2.5 pts
- Boomers 61–79 13,487 13.2% -4.4 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Arizona, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 50.8% of the people living in San Tan Valley and men 49.2%.
- Women 50.8% Arizona 50.0%
- Men 49.2% Arizona 50.0%
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Economy
San Tan Valley has a the economy index of B, which means it is quite prosperous.
| Metric | San Tan Valley | Arizona Avg | U.S. Average |
|---|---|---|---|
| Median household income | $99,471 | $80,381 | $80,455 |
| Income growth (%/yr) | 6.19% | 5.72% | 4.80% |
| Unemployment rate | 4.3% | 5.1% | 5.2% |
The median household income in San Tan Valley is about 24% higher than in Arizona.
Housing
| Metric | San Tan Valley | Arizona Avg | U.S. Average |
|---|---|---|---|
| Median home price | $371,122 | $367,851 | $248,835 |
| Median rent | $2,092 | $1,543 | $1,407 |
| Homeownership rate | 82.7% | 67.4% | 65.2% |
The median home price in San Tan Valley is about 14.8 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $2,092 per month for that long.
Commute Time & Mobility
Commuters in San Tan Valley spend about 74 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 307 hours, about 12.8 full days, spent commuting.
| Metric | San Tan Valley | Arizona Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 36.8 | 22.4 | 22.4 |
| Round-trip commute (min) | 73.6 | 44.9 | 44.8 |
| Yearly time spent (hours) | 307 | 187 | 187 |
| Estimated yearly cost | $9,502 | $5,798 | $5,790 |
| Work from home | 19.8% | 18.4% | 15.0% |
| Highway traffic (vehicles/day) | — | 9,219 | 8,813 |
| Local road traffic (vehicles/day) | 4,601 | 1,948 | 1,355 |
The average commute time in San Tan Valley is 37 minutes, longer than the 22 minutes in Arizona.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
San Tan Valley has a education index of D, which means it is barely educated.
| Metric | San Tan Valley | Arizona Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 21.4% | 29.1% | 31.6% |
| Average household size | 3.16 | 2.53 | 2.53 |
Health
San Tan Valley has a health index of B, which means it is quite healthy.
| Metric | San Tan Valley | Arizona Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 79.5 | 78.3 | 78.3 |
| Self-rated poor health | 12.0% | 19.4% | 16.3% |
| Smokers | 19.2% | 19.5% | 19.0% |
San Tan Valley, AZ Compared With Nearby Cities
How San Tan Valley, AZ compares with the 2 cities closest to it.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| San Tan Valley, AZ | 102,207 | $99,471 #2/3 | $371,122 #2/3 | 36.8 min #3/3 |
| Queen Creek, AZ | 67,869 | $138,816 | $732,602 | 30.8 min |
| Florence, AZ | 22,129 | $86,471 | $75,000 | 30.5 min |
Frequently Asked Questions
Common questions about San Tan Valley, Arizona.
What is the population of San Tan Valley, Arizona?
About 102,207 people live in San Tan Valley, Arizona, in 32,292 households of 3.2 people on average. The median age is 35.6, so residents are younger than the U.S. median of 37.3 by about 2 years.
How densely populated is San Tan Valley, Arizona?
Averaged over its land area, San Tan Valley, Arizona has 1,349 people per square mile, a density typical of urban and suburban areas. That is about 16 times the U.S. average of 86.
Is San Tan Valley, Arizona an affordable place to live?
The median home costs 3.7 times the median household income ($371,122 against $99,471), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $2,092 a month takes about 25% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
What share of adults in San Tan Valley, Arizona have a college degree?
21.4% of adults in San Tan Valley, Arizona hold a bachelor's degree or higher (about 1 in 5), well below the U.S. share of 31.6%.
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