What is CCD?

• CCD is a subdivision of a county that the Census Bureau uses for reporting census data.
  
  

How is a CCD Established?

• The Census Bureau works with state, local and tribal officials to establish CCDs. CCD boundaries usually follow visible features and, where applicable, coincide with census tracts.
  
  

Why are CCDs Established?

• CCDs are set up where there are no minor civil divisions that can be used for reporting census data. A minor civil division is the primary governmental unit for administrative purposes in many states.
  
  

How are CCDs Named?

• The name of each CCD is based on a place, county or well-known local name that identifies its location.
  
  

Where Have CCDs Been Established?

• CCDs have been established in 21 states: Alabama, Arizona, California, Colorado, Delaware, Florida, Georgia, Hawaii, Idaho, Kentucky, Montana, Nevada, New Mexico, Oklahoma, Oregon, South Carolina, Tennessee, Texas, Utah, Washington and Wyoming.