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About San Joaquin County Geographic Information Systems:

The San Joaquin County Community Development Department established the Geographic Information Systems (GIS) group in 1996.  GIS is responsible for maintaining much of the County's map data in electronic form, as well as performing map-based analysis and providing support for other County departments.  GIS also provides a wide variety of services to other local and regional agencies both public and private.

Popular Links Here:

District Viewer - interactive map

Supervisorial District Lookup - interactive map

School District Lookup - interactive map

Assessment Map Viewer - static PDF maps

Natural Hazard Disclosure Maps - static PDF maps


Popular Links Elsewhere:

Surveyor Land Records - interactive map

Flood Zone Viewer - interactive map