Combined Statistical Areas Demographic Trends

.. Combined Statistical Areas are aggregates of adjacent metropolitan areas; they are groups of contiguous counties that have demographic-economic affinity. These 166 areas are important in market research and development for several reasons. Based on the 2015 population estimate, these areas include 244.1 million population of the total U.S. population of 321.4 million (76 percent). CSAs are at least two adjacent metropolitan areas — reflecting a larger and broader market area. Due to their size (of many), it is often possible to develop more detailed custom demographic-economic estimates and projections than at the county or metropolitan area level. See more below about CSA definitions and relation to other geography.

25 Largest CSAs based on 2015 Total Population
The following graphic shows the largest 25 CSAs based on the latest 2015 official population estimates. The intervals/colors are depicted in legend panel at left of map window. Create custom maps similar to this view for your regions of interest. Use the GIS project/datasets to examine alternative patterns such as percent change for different time periods. Set queries to include CSAs by peer group. Click graphic for larger view with more detail; expand browser window for best quality view.

View developed with CV XE GIS software using the us1.gis GIS project.

View all Combined Statistical Areas

This section provides an overview of recent demographic trends among CSAs and provides access to tools to further examine these areas, markets, and demographic-economic-business related characteristics. Use the interactive table below to examine patterns and relationships among CSAs of interest. Use the GIS project and datasets described below to examine CSAs in a mapping and geospatial analysis context.

As an example, the Houston CSA is comprised of the Houston MSA and four adjacent MISAs — Bay City, Brenham, El Campo and Huntsville — four relatively small metros. Compare this to the Los Angeles CSA — the “old 5-county LA metro” — comprised of three adjacent MSAs — Los Angeles-Long Beach-Anaheim, Oxnard-Thousand Oaks-Ventura and Riverside-San Bernardino-Ontario. The Los Angeles CSA is the second largest CSA (based on population) and more than twice the size of the 3rd largest CSA — Chicago. Use the interactive table below to examine relationships among CSAs. Click the ShowAll button then the CSA Only button to rank/compare CSAs. Click the ShowAll button then select the CSA by code button to examine the metro and county components of a specific CSA of interest.

Analyze CSA Demographic Patterns using GIS Tools
View maps for your areas of interest. Add other geography/subject matter. Modify content, color settings, labeling and other attributes. See details about installing and getting started in this section.

Population by Combined Statistical Area: 2010-2015
— Using the Interactive Table
The following graphic illustrates using the interactive table to view a list of the largest 10 CSAs ranked on 2015 total population.
Click graphic for larger view. Use the interactive table to examine CSAs of interest.

Join me in a Data Analytics Lab session to discuss more details about accessing and using wide-ranging demographic-economic data and data analytics. Learn more about using these data for areas and applications of interest.

About the Author
— Warren Glimpse is former senior Census Bureau statistician responsible for innovative data access and use operations. He is also the former associate director of the U.S. Office of Federal Statistical Policy and Standards for data access and use. He has more than 20 years of experience in the private sector developing data resources and tools for integration and analysis of geographic, demographic, economic and business data. Contact Warren. Join Warren on LinkedIn.

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