Maricopa County GIS Maps

Maricopa County Maps

The maps below show a few of the county map styles included in our downloads. County packages include map exports in JPEG, PNG, SVG, PDF and GeoTIFF formats plus more than 20 GIS layers for mapping, research and analysis. Available layers include zip codes, area codes, subdivisions, school districts, political boundaries, roads, water features, points of interest and more.

County packages also include historical county demographics, business intelligence, analytical dashboards, AI-ready prompts, markdown files and related reference data. Everything is organized to save hours of manual work collecting current data, cleaning it and joining it together. That makes it easier to move faster on analytics, due diligence, business planning and location research. Paid packages are built for commercial use, but some package contents include source-specific attribution or notice guidance. Review Licensing & Data Source Notices.

Maricopa County Parcels

Maricopa County has 1,760,246 mapped parcels covering 1,831,116 acres. The median assessed value is $359,000. The median lot size is 0.17 acres. 19,537 parcels are 10 acres or larger. Of the parcels with a recorded build year, half were built in 1995 or earlier. The records carry 1,324,814 distinct owner names. About 12% of parcels list an owner mailing address outside Arizona. Owner names, mailing addresses, assessed values and lot sizes are on nearly every parcel. Site addresses reach 93.3%. Browse the interactive Maricopa County Parcel viewer here.

Maricopa County Parcel Data Coverage

Field coverage measured across all Maricopa County parcel records. Download free sample data here.

Maricopa County Population

Maricopa County had 4,420,568 residents in 2020. That was 15.8% higher than in 2010. Maricopa County added 1,348,419 people between 2000 and 2020, which points to steady long-term growth. Phoenix is the largest city in the county, but it accounts for only about 36% of the total population. The county is fairly spread out, with about 481 people per square mile. Some of the county's most populated postal areas include Chandler, Buckeye and Peoria.

Population Trend in Maricopa County AZ

Maricopa County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.

Maricopa County Zip Codes

Maricopa County has 134 zip codes. Some of the county's most populated zip codes include Chandler (85225), Buckeye (85326) and Peoria (85383). Chandler is the largest zip by population, with about 73,551 residents or 2% of the county total. Together, the three largest zips account for about 5% of all county residents based on 2020 population estimates.

Most Populated Zip Codes in Maricopa County AZ

Maricopa County Zip Code populations and trends per most recent census data.

Maricopa County Demographics

Maricopa County has a median age of 37.5, which makes the county a little younger than Arizona overall. About 22.8% of residents are under 18, while 16% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is 25 to 44 at about 34% of the population, which points to a solid working-age base. About 35.9% of adults have a bachelor's degree or higher, above the statewide figure of 32.6%. The county has a more diverse population mix, with no single race or ethnicity accounting for all of the local story.

Key Demographics for Maricopa County AZ

Maricopa County School Districts

Maricopa County is served by 17 public school districts with 304,257 students enrolled in 2024. The largest districts on the county map are Mesa Unified District, Chandler Unified District and Peoria Unified. Those three districts account for about 43% of public school enrollment in the map area. Total enrollment has stayed fairly steady in recent years, but it is slightly lower than it was in 2017.

Largest School Districts by Enrollment in Maricopa County AZ

Maricopa County school district enrollment and trends per most recent NCES reporting data.

Maricopa County Housing & Real Estate

Maricopa County has a median home value of $414,700 and a median gross rent of $1,587. About 65% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run above the Arizona median, while rents come in above the state average. In March 2026, the median listing price was $524,950 and homes spent about 54 days on the market.

Businesses in Maricopa County, AZ

Maricopa County has 166,462 business listings across 1,531 categories. The largest categories in Maricopa County business listings are Real Estate Agents (4,100, 2.5%), Auto Repair (2,615, 1.6%), and Churches & Religious Organizations (2,404, 1.4%). The full Maricopa County business listings dataset includes names, categories, addresses and contact details where available. Maricopa County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.

Top Business Categories in Maricopa County, AZ

Maricopa County Business Listings

Maricopa County business listings sourced from Overture Maps. Includes locations with a high level of confidence.

Maricopa County Basemaps

Maricopa County map and data packages include a set of useful basemaps to help you get started quickly. These include a custom light grey canvas, USGS topo, imagery and other reference layers that make it easier to build clear, meaningful county maps using the included GIS layers, your own data or both. Pre-rendered map tiles for the light grey basemap are included so you can use them offline or host them on your own CDN.

Preview a Live Package Demo

See exactly what is included in a county data package. Inspect how files are organized, the interactive data explorer and how maps and analytics are laid out. The demo loads a real sample package from Arizona — explore the full structure before you buy.