Arizona's land data is spread across fifteen county GIS departments and several state and federal agencies. This page lists the map viewers a person can use, and the public data services our parcel research tool reads behind the scenes.
County parcel map viewers
Each viewer shows parcel lines over aerial imagery and lets you click a parcel for its APN. Not every county publishes one.
- Apache County: county GIS / parcel map unchecked link
- Cochise County: county GIS / parcel map
- Coconino County: county GIS / parcel map unchecked link
- Gila County: county GIS / parcel map unchecked link
- Graham County: county GIS / parcel map
- Maricopa County: county GIS / parcel map unchecked link
- Mohave County: county GIS / parcel map unchecked link
- Navajo County: county GIS / parcel map unchecked link
- Pima County: county GIS / parcel map unchecked link
- Pinal County: county GIS / parcel map unchecked link
- Yuma County: county GIS / parcel map unchecked link
For counties not listed, start from the assessor link in our county assessor directory.
Public data services we use
These are machine-readable map services (ArcGIS REST and similar). They are what make an automated parcel lookup possible. Each has its own terms; county parcel data in particular is published for reference, not survey, purposes.
| Layer | Publisher | What it contains | Link |
|---|---|---|---|
| Statewide parcels (all 15 counties) | Arizona Department of Water Resources | APN, situs address, GIS acreage. Owner names present; we never display them. | Open |
| Maricopa County parcels | Maricopa County Assessor | APN, size, full cash value, city zoning (incorporated areas), last sale. | Open |
| Pinal County tax parcels | Pinal County | Gross acres, use code, assessed and land values. | Open |
| Pima County parcels | Pima County GIS Open Data | Parcel, GIS acres, current zoning, full cash value. No owner field. | Open |
| Yavapai County parcels and zoning | Yavapai County | Parcel label, deeded acres, coded zoning; separate zoning map layer. | Open |
| AMA and INA boundaries | Arizona Department of Water Resources | Active Management Area and Irrigation Non-Expansion Area polygons. | Open |
| FEMA flood map service center | FEMA | Official flood insurance rate maps and the National Flood Hazard Layer. | Open |
| Elevation point query | U.S. Geological Survey | Ground elevation at any point (3DEP). | Open |
| Address geocoder | U.S. Census Bureau | Turns a street address into coordinates and a county. | Open |
What GIS can and cannot tell you
- Parcel lines are approximate. County GIS lines are drawn for tax mapping. Only a survey establishes a boundary.
- GIS acreage and deeded acreage can differ. Several services calculate acres from the drawn shape; the deed may say something else.
- Zoning layers lag. A recent rezoning may not appear for weeks. Confirm with the planning office — see how to check zoning.
- Roads on a map are not legal access. A line on a map does not prove a recorded right to use it. Our legal access guide explains how to tell.
General information, not legal, tax or survey advice. First 48 Offers LLC is a real estate investment company that buys land. It is not a law firm, brokerage, surveyor or title company. Arizona statutes, county procedures and agency boundaries change, and every parcel turns on its own facts. Verify anything important with the county, the agency named, or an Arizona attorney before relying on it.