GIS (Geographic Information Systems)

What Is GIS?

GIS (Geographic Information Systems) is spatial data technology that lets you view, query, and analyze geographic information — such as parcel boundaries, roads, public lands, access routes, and infrastructure — interactively.

GIS maps are reference tools and are not legal surveys or official boundary determinations. Always consult a licensed land surveyor for exact boundary work.

Available GIS Resources

Interactive Maps

General Map:
- Tax parcel boundaries
- Zoning layers
- Roads and public lands
- Records of Survey boundaries (coming soon)
- Township and Section boundaries (coming soon)

Search Tools

Address look-up
Parcel number search
Records of Survey (coming soon)
Township and Range (coming soon)

Data Downloads

Shapefiles and map layers (if available) by request
PDF versions of maps and layers (coming soon)

Typical Uses of GIS

GIS can help you:

Find property boundary information
Locate features like roads and section lines
Prepare for planning or construction
Understand topography and land use

How to Use GIS Tools

Visit the SJC General Map link.
Enter an address or parcel ID.
Zoom and identify layers you want to view.
Use the map legend to interpret symbols.
Download map images or data as needed.
More detailed information can be found within the ( i ) symbol in the upper right.

GIS Data Disclaimer

The GIS data offered through our mapping tools is intended for reference only and may contain inaccuracies or omissions. Please note that this data does not serve as an official land survey or a legally binding boundary determination. For precise legal boundaries, always consult a licensed land surveyor.