Maricopa County, Arizona Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Maricopa County, 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 averageAmong the top 3 healthiest counties in Arizona
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B
Income Around averageWealthiest county in Arizona
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B
Education Around averageAmong the top 3 best educated counties in Arizona
Source: Map AI Methodology
Population: density and quick facts
| Metric | Maricopa County | Arizona Avg | U.S. Average |
|---|---|---|---|
| Population | 4,540,439 | 7,356,359 | 337,468,954 |
| Population density (per sq mi) | 492.3 | 64.6 | 86.4 |
| Population growth (%/yr) | 1.36% | 1.15% | 0.59% |
| Median age | 35.2 | 37.3 | 37.3 |
| Households | 1,722,812 | 2,847,012 | 130,235,071 |
Population in Maricopa County grew by 18.5% from 2009 to 2024, reaching 4,540,439 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Maricopa County is Gen Z, aged 13–28, at 22.7% of residents. That is 0.5 points above Arizona as a whole.
- Gen Z 13–28 1,032,193 22.7% +0.5 pts
- Millennials 29–44 1,026,054 22.6% +1.1 pts
- Gen X 45–60 897,375 19.8% +0.6 pts
- Boomers 61–79 685,571 15.1% -2.5 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 50.3% of the people living in Maricopa County and men 49.7%.
- Women 50.3% Arizona 50.0%
- Men 49.7% Arizona 50.0%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Maricopa County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Maricopa County has a the economy index of B, which means it is quite prosperous.
| Metric | Maricopa County | Arizona Avg | U.S. Average |
|---|---|---|---|
| Median household income | $89,727 | $80,381 | $80,455 |
| Income growth (%/yr) | 6.04% | 5.72% | 4.80% |
| Unemployment rate | 4.5% | 5.1% | 5.2% |
The median household income in Maricopa County is about 12% higher than in Arizona.
Housing
| Metric | Maricopa County | Arizona Avg | U.S. Average |
|---|---|---|---|
| Median home price | $441,684 | $367,851 | $248,835 |
| Median rent | $1,707 | $1,543 | $1,407 |
| Homeownership rate | 65.1% | 67.4% | 65.2% |
The median home price in Maricopa County is about 21.6 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,707 per month for that long.
Commute Time & Mobility
Commuters in Maricopa County spend about 46 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 193 hours, about 8.0 full days, spent commuting.
| Metric | Maricopa County | Arizona Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 23.1 | 22.4 | 22.4 |
| Round-trip commute (min) | 46.3 | 44.9 | 44.8 |
| Yearly time spent (hours) | 193 | 187 | 187 |
| Estimated yearly cost | $5,980 | $5,798 | $5,790 |
| Work from home | 20.8% | 18.4% | 15.0% |
| Highway traffic (vehicles/day) | 16,286 | 9,219 | 8,813 |
| Local road traffic (vehicles/day) | 3,454 | 1,948 | 1,355 |
Fastest commutes among counties in
Arizona:
La Paz County (10.3 min), Gila County (13.4 min), Greenlee County (13.9 min).
Slowest:
Pinal County (31.0 min), Maricopa County (23.1 min), Pima County (22.2 min).
The average commute time in Maricopa County is 23 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
Maricopa County has a education index of B, which means it is quite educated.
| Metric | Maricopa County | Arizona Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 32.1% | 29.1% | 31.6% |
| Average household size | 2.59 | 2.53 | 2.53 |
Highest education index among counties in
Arizona:
Coconino County (0.3), Pima County (0.3), Maricopa County (0.3).
Lowest:
La Paz County (0.2), Apache County (0.2), Yuma County (0.2).
Health
Maricopa County has a health index of B, which means it is quite healthy.
| Metric | Maricopa County | Arizona Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 78.6 | 78.3 | 78.3 |
| Self-rated poor health | 14.6% | 19.4% | 16.3% |
| Smokers | 15.3% | 19.5% | 19.0% |
Highest health index among counties in
Arizona:
Greenlee County (0.8), Coconino County (0.8), Maricopa County (0.8).
Lowest:
Apache County (0.8), La Paz County (0.8), Navajo County (0.8).
Maricopa County, AZ Compared With Nearby Counties
Maricopa County, AZ is the largest of the 5 counties compared here, 4,540,439 residents against a local median of 357,227. Maricopa County, AZ's median home price, at $441,684, runs 35% above the $327,788 typical of the counties around it.
Median household income tells the same story from another angle: $89,727 against a local median of $70,281, 28% above it. The one measure here that carries a verdict is median household income, and at 28% above the local median it puts Maricopa County, AZ at the better end of the local range. The counties themselves spread $237,517 on median home price, so Maricopa County, AZ sits at one end of an already wide local range rather than apart from it. Maricopa County, AZ has the highest median home price of the 5 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Maricopa County, AZ | 4,540,439 | $89,727 #1/5 | $441,684 #1/5 | 23.1 min #4/5 |
| Pinal County, AZ | 468,983 | $81,040 | $322,522 | 31.0 min |
| Yavapai County, AZ | 245,472 | $70,192 | $380,410 | 18.9 min |
| Pima County, AZ | 1,060,282 | $70,370 | $333,054 | 22.2 min |
| Yuma County, AZ | 211,723 | $63,384 | $142,893 | 18.2 min |
Frequently Asked Questions
Common questions about Maricopa County, Arizona.
What is the population of Maricopa County, Arizona?
About 4,540,439 people live in Maricopa County, Arizona, in 1,722,812 households of 2.6 people on average. The median age is 35.2, so residents are younger than the U.S. median of 37.3 by about 2 years.
Is Maricopa County, Arizona mostly urban or rural?
Averaged over its land area, Maricopa County, Arizona has 492 people per square mile, a density typical of a mix of suburbs, small towns and farmland. That is about 5.7 times the U.S. average of 86.
Can a typical household afford a home in Maricopa County, Arizona?
The median home costs 4.9 times the median household income ($441,684 against $89,727), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $1,707 a month takes about 23% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
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