Making research easier by incorporating publicly available map data into Google Maps-based tools
The main interactive map tools, organized by primary topic. These maps can be customized using the mapBuilder tool found below each map.
Current Location Tools
These maps quickly show you where you are based on your device location. Organized by primary topic.
Custom Map Tools
Create custom area maps and color-coded maps from U.S. ZIP Codes or Counties
Ancestry / Research Tools
Specialized map and search tools useful for genealogy, historical research and present-day research
See counties as they were in every historic year since each state’s inception, overlaid on a present-day interactive map
Historical U.S. County Maps by State by Year
Individual U.S. State MAPS
Interactive maps and static reference maps of every U.S. State, organized by topic
Individual U.S. COUNTY MAPS
Interactive maps and static reference maps of every county in the U.S., organized by topic