119th Congress · AZ-4
Arizona's 4th Congressional District
Arizona's 4th Congressional District (AZ-4) has a population of 803,744. The median household income is $79,335 and the median age is 35.0.
803,744
Population
4494
People / sq mi
$79,335
Median Income
35.0
Median Age
AZ-4 covers 179 sq mi of land at 4494.1 people per square mile.
Race & Ethnicity
| White | 64.8% |
| Black or African American | 5.7% |
| Asian | 1.0% |
| Hispanic or Latino (any race) | 4.1% |
Economy & Income
$79,335
Median Household Income
$42,097
Per Capita Income
8.1%
Poverty Rate
3.3%
Unemployment
Housing
$376,100
Median Home Value
$1,583
Median Rent
55.7%
Homeownership
Education
91.9%
High School+
38.4%
Bachelor's+
Other Arizona Congressional Districts
Largest cities in Arizona
Largest counties in Arizona
State rankings
Frequently Asked Questions
Arizona's 4th Congressional District (AZ-4) has a population of 803,744 according to the latest Census ACS 5-Year estimates. Each US Congressional District is drawn to be roughly equal in population (~760K people).
The median household income in Arizona's 4th Congressional District is $79,335, with a per capita income of $42,097.
Arizona's 4th Congressional District is 64.8% White, 5.7% Black, 1.0% Asian, and 4.1% Hispanic or Latino, per Census ACS data.
More from Arizona
Data for Arizona's 4th Congressional District (119th Congress) from the American Community Survey 5-Year estimates. Land area from the Census Gazetteer files. Congressional districts are redrawn after each decennial Census; the 119th Congress (current) uses post-2020 boundaries.
What distinguishes Arizona's 4th Congressional District is density: among the most densely settled of US congressional districts, around 4,494 people per square mile. Arizona's 4th Congressional District is a congressional district in Arizona with a population of 803,744.
The typical household here earns about $79,335, near the US median of $78,538. Poverty runs at 8.1%, below the national 12.4%. Median home value is $376,100, with typical rent around $1,583.
Roughly 38.4% of adults have a bachelor’s, above the national 35.0%.
That density explains much of the rest of the profile in Arizona's 4th Congressional District: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Source: U.S. Census Bureau ACS, 2026.