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Geographic Information Systems

The GIS Division provides mapping and analysis support for County departments, outside agencies and the public. GIS is the public's portal to geographically referenced data for all County departments, with links to other county systems.

Access our authoritative GIS data directly by visiting our Open Data Portal. This portal provides many ways to search, filter and preview our GIS data before you download it.

My Neighborhood 2.0 Thumbnail

NEW! My Neighborhood 2.0

Use the My Neighborhood app to explore property-related information such as address, valuation, and districts. Explore aerial imagery, data layers and more! 

More information and a Help Guide are available on this webpage.

Please note the old version of My Neighborhood has been retired as of May 31, 2025.

Election Results Dashboard

Election Results Dashboard

Use this app to view mapped results from the November 2024 general election in Nevada County.

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Ready Nevada County Dashboard

Use this app to stay situationally aware of wildfires and other emergencies in and around Nevada County. Visit the Ready Nevada County website to learn more. 

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