Web Mapping Applications

Humbolt GIS Portal

Geographic Information System (GIS) Web Applications

The WebGIS will be unavailable or intermittent daily at 4:30 PM - 5:30 PM for system upgrades and improvements.  Sorry for the inconvenience.

Click on the icons or links below to access desktop or mobile version of the Web GIS 2.0

Currently Internet Explorer update version 11.0.110 is not working properly with WebGIS. Google Chrome and Microsoft Edge and other versions of I.E. are working properly


Download our Web GIS Guide (PDF)

Web GIS 2.0 Data Layers

This is a general list of the most used data layers.  Additional data layers are available that are not listed.

  • Critical Facilities, Roads and Streams
    • Public Land Survey
  • Jurisdiction Boundaries and Land Use
    • Planning Layers
      • Zoning
      • General Plan
      • Draft General Plan Update
    • Jurisdiction Boundaries
      • Fire Districts
      • Supervisorial Districts
      • Election Precincts
    • Housing Inventory
    • Historic Layers
  • Parcels
  • Hazards
    • Flood Zones
    • Slope and Topography
    • Fire Planning
    • Airport Compatibility Zones
  • Coastal Zone
    • Jurisdiction
    • Categorical Exclusion
  • Natural Resources
    • Streamside Management Area
    • Agricultural Soils
    • MS4 Permit Area
  • Demographics, Economics, and Mobility
    • Economic Development
    • Rural Transportation and Access Partnership (RTAP)
  • Topographic Layers
  • NAIP Aerial Imagery
Other Resources