Maps

This map shows population estimates within the Chesapeake Bay watershed on a county-by-county basis for the year 2014. For counties not completely within the Chesapeake Bay watershed, the population numbers were derived as a proportion of the total county based on land area.

This map shows population estimates within the Chesapeake Bay watershed on a county-by-county basis for the year 2010. These are actual Census Bureau population figures provided after the last decennial census (2010). However, for counties not completely within the Chesapeake Bay watershed, the population numbers were derived as a proportion of the total county based on land area.

Population projections were produced by the Population Division of the U.S. Census Bureau. The projections were produced for the years 2001 to 2030, based on Census 2000 results, and the general assumption that recent state-specific trends in fertility, mortality, domestic migration, and international migration will continue.

This map shows population estimates within the Chesapeake Bay watershed on a county-by-county basis for the year 2005. The Census Bureau publishes July 1 estimates for years after the last decennial census (2000), as well as for past decades. Data series for births, deaths, and domestic and international migration are used to update the decennial census base counts.