U.S. County Visualizer Overview

The MapTechnica.com U.S. County Visualizer is a free online tool that overlays the U.S. county and county-equivalent (parish and borough) boundaries tabulated by the U.S. Census Bureau over a Google Map. To use the tool, enter either county and state, or a 5-digit ZIP code and hit "go."

Tool Usage and Purchase Information

Usage of this online tool is free of charge, but is limited to a reasonable number of page views per day. If you require the U.S. County and County-Equivalent tile overlays for your custom mapping application, the tile set is available for purchase from MapTechnica.com's Products Page.

Technical Details

The U.S. County Visualizer displays county and county-equivalent boundaries for the entire Continental United States, Alaska, Hawaii, and Puerto Rico. The tile set includes county maps supporting a maximum Google Maps zoom level of 12.

The underlying data was rendered from the U.S. Census Bureau's 2009 TIGER/Line® Shapefiles.

The entire MapTechnica.com U.S. County and County-Equivalent tile set consists of nearly 1 million tiles totalling over 3 Gigabytes of data. (If you're wondering, we're capably hosted by MediaTemple.)

For more technical information and details about MapTechnica.com, please visit our About MapTechnica.com page or visit our Frequently Asked Questions page.