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Maricopa County, Arizona

Maricopa County profile, demographic data, and geographic information.

Maricopa County is a county located in Arizona, United States of America. As of official census estimates, it has a reported population of 4,689,558. The land area covers 9,202.04 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of Maricopa County
Official Title: Supervisor
Address: 301 W JEFFERSON ST, FL 10, PHOENIX AZ 85003-2148

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 4,689,558 — 2025 / Census
Median Age 37.6 yrs ±0.2 2020-2024 / Census ACS 5-Year 2024
Total Households 1,730,696 ±4,424 2020-2024 / Census ACS 5-Year 2024
Source: U.S. Census Bureau (PEP, ACS 5-Year).

Housing & Real Estate Profile

Housing Metric Estimate / Value Margin of Error
Total Housing Units 1,884,334 ±536
Occupied Housing Units 1,730,696 ±4,424
Vacant Housing Units 153,638 ±4,300
Median Home Value $452,800 ±$1,398
Median Gross Rent $1,708 ±$8
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $89,300 ±$562
Per Capita Income $46,183 ±$290
Poverty Rate 11% ±0.2%
Population Below Poverty Level 492,910 ±9,480
Unemployment Rate 4.5% ±0.1%
Civilian Labor Force, Employed 2,265,286 ±6,734
Broadband Internet Rate 93.1% ±0.2%
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at LITCHFIELD PARK, AZ US, located 13.2 miles from Maricopa County. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 66.1° 42.9° 54.5° 0.96" 0.0"
February 70.2° 45.9° 58.1° 1.20" 0.0"
March 77.7° 51.2° 64.4° 0.95" 0.0"
April 85.5° 57.0° 71.3° 0.29" 0.0"
May 94.3° 65.3° 79.8° 0.13" 0.0"
June 104.0° 73.7° 88.8° 0.03" 0.0"
July 106.5° 81.2° 93.8° 0.76" 0.0"
August 104.7° 80.6° 92.6° 1.06" 0.0"
September 99.3° 73.8° 86.5° 0.79" 0.0"
October 88.1° 60.9° 74.5° 0.57" 0.0"
November 74.6° 49.3° 61.9° 0.59" 0.0"
December 64.5° 42.0° 53.2° 0.85" 0.0"
Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 04013. • Official Source Dataset →
  2. Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
  3. Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
  4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.