US Census County Based TIGER/LineĀ® 2009 Data Dictionary

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Entity, Joins, Attributes, and Domains

ReadMe TIGER/Line Overview Layers and Tables FGDC Dataset Metadata

Entity
Name Full Name Type Definition
AREALM Area Landmark Polygon The Census Bureau includes landmarks in the MAF/TIGER database for locating special features and to help enumerators during field operations. Some of the more common landmark types include area landmarks such as airports, cemeteries, parks, and educational facilities and point landmarks such as schools and churches.

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Joins
No. From Entity From Attribute To Entity To Attribute Cardinality Description
1 AREALM AREAID FACESAL AREAID 1 to N An area landmark may consist of multiple faces.

Attributes

Single Record Layout

Attributes
No. Short Name Full Name Definition Data Type Max Chars Key Permanent Subtype Allowed Values Sample Values Distinct Values Nulls Percent Complete Formats Max Length Min Value Max Value
1 STATEFP Current state FIPS code Current state Federal Information Processing Standards (FIPS) code. The census provides specific layers for these areas through Nation and State based Shapefiles. Text 2 Foreign, Census       25 1 0 100 N2 2 25 25
2 COUNTYFP Current county FIPS code Current county Federal Information Processing Standards (FIPS) code, unique by state. The census provides specific layers for these areas through Nation and State based Shapefiles. Text 3 Foreign, Census       017 1 0 100 N3 3 017 017
3 ANSICODE GNIS Identifier Current official Geographic Names Information System (GNIS) code for the landmark for use by federal agencies for data transfer and dissemination, if applicable. Text 8 Foreign, GNIS Y     null 1 38 0   1    
4 AREAID Area landmark identifier Area landmark identifier. Text 22 Primary       110340945888, 110340946108, 110340946147 38 0 100 N12 12 110340945888 110340951158
5 FULLNAME Full Name Concatenation of expanded text for prefix qualifier, prefix direction, prefix type, base name, suffix type, suffix direction, and suffix qualifier (as available) with a space between each expanded text field. Text 100         null, Ashland State Park, Bell Rock Cmtry 30 8 78.95 U1L6S1U1L4S1U1L3 22   Whittemore Park
6 MTFCC MAF/TIGER feature class code The MTFCC is a 5-digit code intended to classify and describe geographic objects or features. The MTFCC replaced the Census Feature Class Code (CFCC) used before 2007 and was expanded to include features that previously did not have codes. MTFCC definitions are available in the metadata files that accompany each shapefile and relationship file and in Appendix F of this document. A crosswalk between CFCC and MTFCC codes can be found on the TIGER/Line website (http://www.census.gov/www/geo/tiger). Text 5       AREALM.MTFCC C3023, K2180, K2184, K2361, K2451, K2457, K2582 7 0 100 U1N4 5 C3023 K2582
7 ALAND Current land area in square meters.   Integer -1       AREALM.ALAND 0, 2027, 3399, 3875, 5105, 5240, 5682, 6400, 6484 38 0 100 N1, N4, N5, N6, N7 7 0 6018144
8 AWATER Current water area in square meters   Integer -1       AREALM.AWATER 0, 3881, 4470, 5008, 5333, 5927, 13757, 20294 9 0 100 N1, N4, N5, N6 6 0 690895
9 INTPTLAT Current latitude of the internal point Y centroid value which can be used to generate or display point features representing polygon areas. The Census represents these as text fields containing +/- signs which generally need to be converted into floating point data types before being used with XY based utilities. Text 11       AREALM.INTPTLAT +42.1579117, +42.1630393, +42.1637218 38 0 100 S1N2S1N7 11 +42.2406260 +42.6644839
10 INTPTLON Current longitude of the internal point X centroid value which can be used to generate or display point features representing polygon areas. The Census represents these as text fields containing +/- signs which generally need to be changed into floating point data types before being usedwith XY based utilities. Text 12       AREALM.INTPTLON -71.0247100, -71.0257343, -71.0259553 38 0 100 S1N2S1N7 11 -71.0352204 -71.6533099

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