New Mexico · FIPS 35045 · County seat: Aztec
San Juan County, NM GIS & Parcel Viewer
Parcel lookups for San Juan County start at the San Juan County ArcGIS parcel map. This page gives you that official link, notes on how the viewer works, and links to the counties next door.
Open the San Juan County parcel map ↗
Opens webmaps.sjcounty.net in a new tab. We link out and never embed or copy parcel data.
Map and county facts
| Official map | San Juan County ArcGIS parcel map |
|---|---|
| Type | County-run map |
| Website | webmaps.sjcounty.net |
| Access | Free, no login (checked Oct 2026) |
| County seat | Aztec |
| Population | 120,675 (2023 Census Bureau estimate) |
| Land area | 5,517 sq mi |
| FIPS code | 35045 |
Who runs this map
San Juan County runs this viewer (directly or through a contracted vendor), which makes it the closest thing to the source for local parcel lines. Our October 2026 check found the map open to the public, with no account or payment needed.
Finding a property on this map
- Click the button above and wait for the Web AppBuilder viewer to load. Some counties show a terms screen first.
- Search by street address, owner or parcel ID if the search box offers those options.
- Click a lot on the map to read its attributes.
- Turn on aerial imagery from the basemap tool and use the layer list to add things like zoning or flood zones when they're published.
Many parcel sites expect owner names last name first. If a full name finds nothing, try just the surname.
The county in brief
San Juan County had an estimated 120,675 residents in 2023, according to the Census Bureau. With about 5,517 square miles of land, that works out to roughly 22 people per square mile. Among New Mexico's 33 counties, it is the 5th largest by population. The county seat is Aztec.
Counties next to San Juan County
If the property sits near a county line, the parcel may belong to a neighbor. These counties border San Juan County:
- McKinley County
- Rio Arriba County
- Sandoval County
- Apache County, AZ
- Archuleta County, CO
- La Plata County, CO
- Montezuma County, CO
- San Juan County, UT
Our longer guides
Maps vs. surveys
Online parcel lines are drawn for tax and planning use. They can be off by several feet, so use a recorded plat or a licensed surveyor for fences, setbacks or a sale.