Core-Based Statistical Areas
Introduction
Summary
Core Based Statistical Areas (CBSAs) are geographic regions defined by the US Office of Management and Budget (OMB) that include a core urban area and adjacent communities with high social and economic integration, typically measured by commuting ties. A CBSA is a collective term for Metropolitan Statistical Areas (MSAs), which have an urban area of 50,000 or more, and Micropolitan Statistical Areas (Micros), which have an urban core of at least 10,000 but less than 50,000. CBSAs are used by federal statistical agencies to consistently collect and publish data and are useful for businesses to understand markets and identify trends.
Components of a CBSA
- Core County (or Counties): The county or counties containing the principal urban area.
- Outlying Counties: Adjacent counties that are integrated with the central county due to commuting patterns, where a significant proportion of residents commute to or from the central county.
Types of CBSAs
- Metropolitan Statistical Area: A CBSA that contains an urbanized area of 50,000 or more people.
- Micropolitan Statistical Area: A CBSA with a core urban area of at least 10,000 but less than 50,000 people.
How CBSAs Are Defined and Used
- Delineation: The OMB defines CBSAs based on U.S. counties, ensuring that boundaries align with whole counties.
- Purpose: CBSAs provide a national framework for federal statistics, allowing for consistent data collection and analysis across different regions.
- Applications: Businesses and organizations use CBSAs to understand market conditions, segment customer bases, and make informed decisions at a local geographic level. The Centers for Medicare and Medicaid Services (CMS) also uses CBSAs to define payment areas and analyze market trends for healthcare providers.
The map and table below give geographic data on Alabama's 26 CBSAs. The land and water areas are given in square miles.
Map
In the map below, the counties can be added as an area layer with the layer control, and the census-designated central points can be added as a point layer. Click on a feature to view summary information about the feature.
Tables
CBSA Table
Click on a row in the table to see the corresponding CBSA highlighted in green in the map above. Click on the row again to de-select.
| CBSA |
GeoID |
Type |
Alabama Counties |
Tracts |
Population |
Housing |
Land |
Water |
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Summary Table by Type
| Type |
CBSAs |
Counties |
Tracts |
Population |
Housing |
Land |
Water |
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Non-CBSA Counties
The 22 counties that are not a part of a CBSA can be considered completely rural.
Combined Demographics
- Cesus tracts: 146
- Population: 409621
- Housing units: 207016
- Land area: 17466.86
- Water area: 181.84.
List of Non-CBSA Counties
- Bullock County
- Butler County
- Cherokee County
- Choctaw County
- Clarke County
- Clay County
- Cleburne County
- Conecuh County
- Covington County
- Crenshaw County
- Escambia County
- Fayette County
- Lamar County
- Marengo County
- Marion County
- Monroe County
- Perry County
- Randolph County
- Sumter County
- Washington County
- Wilcox County
- Winston County