County Subdivision Relationship File Record Layout

These files contain diacritical marks.

Note: In the Excel file, there are three GEOID10 records - 3706794068, 3711993268, and 3910383426 - where the number of characters used in the NOTES column exceeds the ability to display the text in Excel.

Field	Description
GEOID10	Concatenated STATEFP10 + COUNTYFP10 + COUSUBFP10
STATEFP10	2010 Census 2-digit FIPS State Code
COUNTYFP10	2010 Census 3-digit FIPS County Code
COUSUBFP10	2010 Census 5-digit County Subdivision Code
ANSICODE10	2010 Census 8-digit ANSI Code
NAMELSAD10	2010 Census Place Name with Legal/Statistical Area Description
FULLNAMELSAD10	2010 Census Place Name with Legal/Statistical Area Description plus County Name with Legal/Statistical Area Description and State Name
GEOID00	Concatenated STATEFP00 + COUNTYFP00 + COUSUBFP00
STATEFP00	Census 2000 2-digit FIPS State Code
COUNTYFP00	Census 2000 3-digit FIPS County Code
COUSUBFP00	Census 2000 5-digit FIPS County Subdivision Code
NAMELSAD00	Census 2000 Place Name with Legal/Statistical Area Description
NOTES	Notes showing more detailed changes

A NOTE is included when:

An entity is new for the 2010 Census.
The estimated population in a changed area is greater than 5% of either the Census 2000 entity or the 2010 Census entity.
The area affected by a change is greater than 10% of either the Census 2000 entity or the 2010 Census entity (except for so-called "false" entities, that is, incorporated places that also serve as county subdivisions). For false entities, 25% was used as the threshold for area change.
The estimated population in a changed area was greater than 500.
The area of change was greater than 10,000,000 square meters (3.86 square miles).
To show the disposition of any Census 2000 deleted county subdivisions.
There is no comparable Census 2000 entity.

No NOTE implies exact or near exact comparability between the listed 2010 Census and Census 2000 county entities.