How do I color individual California counties?
Open the California template, color its counties and export your finished map as a PNG.
How many counties does California have?
California has 58 counties. The template includes all 58, from Alameda to Yuba, with official five-digit Census GEOIDs.
Can I download a blank California county map?
Yes. Open the editor, choose a neutral fill and county borders, then export a blank map as a PNG.
Are county names available in the editor?
Yes. Each county has its official name and five-digit GEOID for selection and data matching. The reference directory above lists all 58.
Does it include cities or ZIP-code boundaries?
This template shows county boundaries, including relevant offshore islands. It does not show separate city or ZIP-code boundaries.
Can I import CSV data using county GEOIDs?
Yes. Use five-digit GEOIDs such as 06001 for Alameda or 06037 for Los Angeles, stored as text to preserve leading zeroes. Import your CSV, review county matches, then apply numerical or categorical colors.
Can I export a high-resolution PNG?
Yes. Customize the map, title, legend and source annotation, then choose the PNG export settings for your report, article or presentation.
Can I use my map for research or education?
Yes. The geography uses U.S. Census Bureau 2025 county boundaries. Cite the boundary source and your statistical dataset separately, check each dataset’s terms, and describe the observation period. ACS estimates have sampling uncertainty; the downloadable income data retain margins of error.
Is the California map maker free?
Yes. You can color counties, customize your map and export a PNG in the free online editor without signing up.
Can I create maps for r/MapPorn and r/dataisbeautiful?
Yes. Use verified data from official sources, include a clear title, legend and source, and export your map. Check each community’s current posting rules before sharing.