California · FIPS 06059 · County seat: Santa Ana
Orange County, CA GIS & Parcel Viewer
Looking for lot lines or a parcel number in Orange County, CA? The quickest route is OCGIS.COM for Orange County, the county parcel map we keep on file for this county. We link straight to it and add a few tips for getting around.
Open the Orange County parcel map ↗
Opens ocgis.com in a new tab. We link out and never embed or copy parcel data.
Quick facts
| Official map | OCGIS.COM for Orange County |
|---|---|
| Type | County-run map |
| Website | ocgis.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Santa Ana |
| Population | 3,135,755 (2023 Census Bureau estimate) |
| Land area | 793 sq mi |
| FIPS code | 06059 |
Who runs this map
It is a county-level map: Orange 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.
How to use the Orange County viewer
- 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.
The county in brief
Census Bureau figures put Orange County at about 3,135,755 people (2023 estimate) on roughly 793 square miles of land, which is about 3,954 residents per square mile. That makes it number 3 out of 58 California counties by population. Another 157 square miles of water fall within its lines, according to Census mapping. Santa Ana serves as the county seat.
Neighboring counties
Parcels close to the edge of Orange County can fall in the next county over. Neighboring counties:
Our longer guides
- Orange County California parcel map GIS: think in layers
- Orange County California parcel map on OCGIS
Before you rely on the lines
Keep in mind that a GIS parcel layer is a tax map, not a survey. For exact boundaries, look at the recorded deed and plat or hire a licensed land surveyor.