Population tables of U.S. cities 

Cities 
Urban areas 
Populous cities and metropolitan areas 
Metropolitan areas 
Megaregions 

This article defines a "primary" metropolitan area as a metropolitan area that is not a component of a more extensive defined metropolitan area. A corebased statistical area (defined by the United States Office of Management and Budget (OMB)^{ [1]}) that is not a component of a combined statistical area (CSA)^{ [2]} is what is defined here as a "primary statistical area."
The 574 primary statistical areas (PSAs) of the United States and Puerto Rico comprise all 169 combined statistical areas currently defined by the OMB and the 405 of 929 corebased statistical areas (CBSAs)^{ [3]}^{ [4]} currently defined by the OMB that are not a component of a combined statistical area.
On February 28, 2013, the United States Office of Management and Budget defined 1098 statistical areas for the United States and Puerto Rico, comprising 169 combined statistical areas,^{ [5]} 388 metropolitan statistical areas,^{ [6]} and 541 micropolitan statistical areas^{ [7]} for the United States and Puerto Rico.^{ [1]} A total of 574 of these 1098 statistical areas qualify as primary statistical areas, including all 169 combined statistical areas, 122 of the 388 metropolitan statistical areas, and 283 of the 541 micropolitan statistical areas. The OMB does not use the term "primary statistical area", but the term is commonly used^{[ who?]} to identify the most extensive OMBdefined statistical area for a given county or county equivalent.^{[ citation needed]}
Contents
Map
See also
 United States of America

Demographics of the United States
 United States Census Bureau

United States Office of Management and Budget
 The OMB has defined 1098 statistical areas comprising 388 MSAs, 541 μSAs, and 169 CSAs
References
 ^ ^{a} ^{b} "OMB Bulletin No. 1301: Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas" (PDF). United States Office of Management and Budget. February 28, 2013. Retrieved April 1, 2013.
 ^ The United States Office of Management and Budget (OMB) defines a combined statistical area (CSA) as an aggregate of adjacent core based statistical areas that are linked by commuting ties.
 ^ The United States Office of Management and Budget (OMB) defines a corebased statistical area as one or more adjacent counties or county equivalents having at least one urban cluster of at least 10,000 population, plus adjacent territory that has a high degree of social and economic integration with the core as measured by commuting ties.
 ^ See the List of United States corebased statistical areas.
 ^ See the List of United States combined statistical areas.
 ^ See the List of United States metropolitan statistical areas.
 ^ See the List of United States micropolitan statistical areas.