Data provided by U.S. Census Bureau.
- - Represents zero or rounds to 0.0
- The term 'county' refers to county or equivalent entity.
- For more information on Substantial Changes to Counties and County Equivalent Entities: 1970-Present, please visit: http://www.census.gov/geo/www/tiger/ctychng.html
For questions, comments and suggestions about Census Bureau data visualizations, please contact: email@example.com