To comply with Wikipedia's guidelines, the introduction of this article may need to be rewritten. Please discuss this issue on the talk page and read the layout guide to make sure the section will be inclusive of all essential details. (September 2009)

This article needs additional citations for verification. Please help improve this article by adding reliable references. Unsourced material may be challenged and removed. (March 2008)

An enlargeable map of the 124 Combined Statistical Areas of the United States

The United States Office of Management and Budget (OMB) defines micropolitan and metropolitan statistical areas. Metropolitan and micropolitan statistical areas consist of one or more counties (or county-equivalents). Currently defined metropolitan and micropolitan statistical areas are based on application of the 2000 standards (which appeared in the Federal Register on December 27, 2000) to Census 2000 data, as updated by application of those standards to more recent Census Bureau population estimates. The current definition is as of December 2006.

If specified criteria are met, adjacent metropolitan and micropolitan statistical areas, in various combinations, may become the components of a new set of areas called combined statistical areas (CSAs). Using Census Bureau data the OMB compiles lists of CSAs. The areas that combine retain their own designations as metropolitan or micropolitan statistical areas within the larger combined statistical area. There are 126 CSAs defined by OMB as of December 2006.

Note that CSAs represent multiple metropolitan or micropolitan areas that have a moderate degree of employment interchange. CSAs often represent regions with overlapping labor and media markets.

[edit] See also

United States census statistical areas by state, district, or territory

AL

AK

AZ

AR

CA

CO

CT

DE

DC

FL

GA

HI

ID

IL

IN

IA

KS

KY

LA

ME

MD

MA

MI

MN

MS

MO

MT

NE

NV

NH

NJ

NM

NY

NC

ND

OH

OK

OR

PA

RI

SC

SD

TN

TX

UT

VT

VA

WA

WV

WI

WY

AS

GU

PR

MP

VI

• Geography
  • Human geography
    • Demography
• United States
  • United States Census Bureau
  • United States Office of Management and Budget
    • Combined Statistical Area
    • Core Based Statistical Area
      • Metropolitan Statistical Area
      • Micropolitan Statistical Area
    • Demographics of the United States
    • Table of United States Combined Statistical Areas (CSA)
    • Table of United States Core Based Statistical Areas (CBSA)
      • Table of United States Metropolitan Statistical Areas (MSA)
      • Table of United States Micropolitan Statistical Areas (µSA)
    • Table of United States primary census statistical areas (PCSA)

[edit] References

[edit] External links

• List of Combined Statistical Areas
• Environmental Protection Agency list of CSAs with populations
• Census Bureau population data and estimates for CSAs and metropolitan/micropolitan areas
• US Office of Management and Budget
• US Census Bureau