Census Tract 2000

Field Length:  6

This field records the census tract of a patient's residence at the time of diagnosis, using codes from the Year 2000 Census conducted by the U.S. Census Bureau.  The central registry calculates this code from the patient's address at diagnosis using geocoding software.  This field is available only in the KCR central registry database and is considered a confidential field.  

Census tract codes allow central registries to calculate incidence rates for geographical areas having population estimates.  The Census Bureau provides population data for census tracts.  Those rates can be used for general surveillance or special geographical and socioeconomic analysis.