California · FIPS 06049 · County seat: Alturas
Modoc County, CA GIS & Parcel Viewer
Modoc County, California parcel data lives on the Modoc County parcel map. Open it below in a new tab, then use the short steps on this page to find a property fast.
Open the Modoc County parcel map ↗
Opens assr.parcelquest.com in a new tab. We link out and never embed or copy parcel data.
Quick facts
| Official map | Modoc County parcel map |
|---|---|
| Type | County-run map |
| Website | assr.parcelquest.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Alturas |
| Population | 8,500 (2023 Census Bureau estimate) |
| Land area | 3,948 sq mi |
| FIPS code | 06049 |
Who runs this map
It is a county-level map: Modoc County or the company it hires keeps the parcel layer up to date. As of our October 2026 test, anyone could open it without signing in or paying.
Finding a property on this map
- Open the official link in a new tab.
- Accept any disclaimer, then look for a search box that takes street addresses, owners or parcel IDs.
- Zoom in and click a parcel to see its details.
- Use the map's layer controls to add aerials or other layers if they're offered.
Rural addresses don't always geocode well. When that happens, zoom in by hand and click the parcel, or search by owner name.
About Modoc County
The U.S. Census Bureau estimated Modoc County's population at 8,500 in 2023, spread over about 3,948 square miles of land, or roughly 2.2 people per square mile. That makes it number 56 out of 58 California counties by population. The county seat is Alturas.
Neighboring counties
If the property sits near a county line, the parcel may belong to a neighbor. These counties border Modoc County:
Before you rely on the lines
Treat the map as a guide, not a boundary survey: parcel outlines are often shifted a bit from the real corners. A licensed surveyor settles exact lines.