The statistical areas of the United States of America comprise the metropolitan statistical areas (MSAs), the micropolitan statistical areas (μSAs), and the combined statistical areas (CSAs) currently defined by the United States Office of Management and Budget (OMB).

Most recently on December 1, 2009, the Office of Management and Budget defined 1067 statistical areas for the United States, including three combined statistical areas, six metropolitan statistical areas, and four micropolitan statistical areas in the State of Maryland. The table below shows the recent population of these statistical areas, the 23 counties, and the 1 independent city of Maryland.

The table below describes the 13 United States statistical areas, 23 counties, and 1 independent city of the State of Maryland with the following information:

- The combined statistical area (CSA) as designated by the OMB.
- The CSA population as of April 1, 2010, as enumerated by the 2010 United States Census.
- The core based statistical area (CBSA) as designated by the OMB.
- The CBSA population as of April 1, 2010, as enumerated by the 2010 United States Census.
- The county, independent city, or federal district.
- The county, independent city, or federal district population as of April 1, 2010, as enumerated by the 2010 United States Census.