FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION
TITLE: CENSUS BLOCK GROUP CENTROIDS, 1980
Geodataset Name: CBG1980 Geodataset Type: SHAPE Geodataset Feature: POINT
GENERAL DESCRIPTION:
This dataset contains Census Block Group centroid points as they are defined by the Bureau of the Census. Census block groups are geographic entities within the same census tract. Block groups usually contain between 250 and 550 housing units.
DATA SOURCE(S): U.S. Bureau of the Census:
Spatial Patterns of Socioeconomic Data from 1970 to 2000
SCALE OF ORIGINAL SOURCE MAPS: 1:100,000
DATE OF AUTOMATION OR SOURCE: 1999
GEODATASET EXTENT: State of Florida
FEATURE ATTRIBUTE TABLES:
Datafile Name:CBG1980.DBF ITEM NAME WIDTH TYPE PRECISION SHAPE 6 SHAPEPOINT 0 CENS80ID 22 CHARACTER 0 STATE 2 DECIMAL 0 COUNTY 3 DECIMAL 0 PLACE 4 DECIMAL 0 TRACTBNA 6 DECIMAL 0 BG 1 DECIMAL 0 ED_CODE 6 CHARACTER 0 LAT_DD 15 DECIMAL 4 LON_DD 17 DECIMAL 4 LLSRCE 1 CHARACTER 0 LL_FLAG 1 CHARACTER 0 FIPS 5 DECIMAL 0 UNIQUE 4 DECIMAL 0 EDASUBEDA 5 CHARACTER 0 DR_CODE 1 CHARACTER 0 HUC 8 DECIMAL 0 C80POPUL 5 DECIMAL 0 C80URBN 5 DECIMAL 0 C80NURBN 5 DECIMAL 0 C80RNFAR 5 DECIMAL 0 C80RFARM 4 DECIMAL 0 C80WHITE 5 DECIMAL 0 C80BLACK 5 DECIMAL 0 C80OTHER 4 DECIMAL 0 C80ENGLI 5 DECIMAL 0 C80SPANI 4 DECIMAL 0 C80HLOTH 4 DECIMAL 0 C80AGE1 4 DECIMAL 0 C80AGE2 4 DECIMAL 0 C80AGE3 3 DECIMAL 0 C80AGE4 3 DECIMAL 0 C80AGE5 4 DECIMAL 0 C80AGE6 4 DECIMAL 0 C80AGE7 3 DECIMAL 0 C80AGE8 3 DECIMAL 0 C80AGE9 3 DECIMAL 0 C80AGE10 4 DECIMAL 0 C80AGE11 4 DECIMAL 0 C80AGE12 4 DECIMAL 0 C80AGE13 4 DECIMAL 0 C80AGE14 4 DECIMAL 0 C80AGE15 4 DECIMAL 0 C80AGE16 4 DECIMAL 0 C80AGE17 4 DECIMAL 0 C80AGE18 4 DECIMAL 0 C80AGE19 4 DECIMAL 0 C80AGE20 3 DECIMAL 0 C80AGE21 4 DECIMAL 0 C80AGE22 4 DECIMAL 0 C80AGE23 4 DECIMAL 0 C80MALE 5 DECIMAL 0 C80FEMA 5 DECIMAL 0 C80FI1 4 DECIMAL 0 C80FI2 4 DECIMAL 0 C80FI3 4 DECIMAL 0 C80FI4 4 DECIMAL 0 C80FI5 4 DECIMAL 0 C80FI6 4 DECIMAL 0 C80NCOLL 4 DECIMAL 0 C80COLLE 4 DECIMAL 0 C80EDUC1 4 DECIMAL 0 C80EDUC2 4 DECIMAL 0 C80EDUC3 4 DECIMAL 0 C80EDUC4 4 DECIMAL 0 C80OCCU1 4 DECIMAL 0 C80OCCU2 4 DECIMAL 0 C80OCCU3 4 DECIMAL 0 C80OCCU4 4 DECIMAL 0 C80OCCU5 4 DECIMAL 0 C80OCCU6 3 DECIMAL 0 C80OCCU7 4 DECIMAL 0 C80OCCU8 4 DECIMAL 0 C80OCCU9 3 DECIMAL 0 C80INDU1 3 DECIMAL 0 C80INDU2 3 DECIMAL 0 C80INDU3 4 DECIMAL 0 C80INDU4 4 DECIMAL 0 C80INDU5 3 DECIMAL 0 C80INDU6 4 DECIMAL 0 C80INDU7 4 DECIMAL 0 C80INDU8 4 DECIMAL 0 C80INDU9 4 DECIMAL 0 C80IND10 4 DECIMAL 0 C80IND11 4 DECIMAL 0 C80ABOVE 5 DECIMAL 0 C80BELOW 4 DECIMAL 0 C80NATIV 5 DECIMAL 0 C80FOREI 5 DECIMAL 0 C80FHOUS 5 DECIMAL 0 C80GQUAR 5 DECIMAL 0 C80ALLFA 5 DECIMAL 0 C80FAWFH 4 DECIMAL 0 C80M14YR 5 DECIMAL 0 C80F14YR 5 DECIMAL 0 C80SHOUS 5 DECIMAL 0 C80DHOUS 5 DECIMAL 0 C80ABROA 4 DECIMAL 0 C80MLFOR 5 DECIMAL 0 C80MNLFO 4 DECIMAL 0 C80FLFOR 4 DECIMAL 0 C80FNLFO 4 DECIMAL 0 C80INCO1 4 DECIMAL 0 C80INCO2 5 DECIMAL 0 C80INCO3 4 DECIMAL 0 C80INCO4 4 DECIMAL 0 C80INCO5 4 DECIMAL 0 C80INCO6 3 DECIMAL 0 C80FHABO 4 DECIMAL 0 C80FHBEL 4 DECIMAL 0 C80FABOV 4 DECIMAL 0 C80FBELO 4 DECIMAL 0 C80OWNER 4 DECIMAL 0 C80RENTE 4 DECIMAL 0 C80TSTR1 14 CHARACTER 0 C80TSTR2 4 DECIMAL 0 C80TSTR3 4 DECIMAL 0 C80TSTR4 5 DECIMAL 0 C80TSTR5 4 DECIMAL 0 C80GREN1 4 DECIMAL 0 C80GREN2 4 DECIMAL 0 C80GREN3 4 DECIMAL 0 C80GREN4 4 DECIMAL 0 C80GREN5 4 DECIMAL 0 C80TELE1 4 DECIMAL 0 C80TELE2 4 DECIMAL 0 C80TELE3 4 DECIMAL 0 C80TELE4 4 DECIMAL 0 C80AUTO1 4 DECIMAL 0 C80AUTO2 4 DECIMAL 0 C80AUTO3 4 DECIMAL 0 C80HEAT1 4 DECIMAL 0 C80HEAT2 3 DECIMAL 0 C80HEAT3 4 DECIMAL 0 C80HEAT4 4 DECIMAL 0 C80HEAT5 4 DECIMAL 0 SL 2 DECIMAL 0 C80COOK1 4 DECIMAL 0 C80COOK2 4 DECIMAL 0 C80COOK3 4 DECIMAL 0 C80COOK4 3 DECIMAL 0 C80COOK5 4 DECIMAL 0 DESCRIPT 5 DECIMAL 0
FEATURE ATTRIBUTE TABLES CODES AND VALUES:
ITEM ITEM DESCRIPTION
SHAPE DATA ATTRIBUTE INHERENT TO THE ESRI SHAPEFILE FORMAT, WHICH DEFINES
THE DATA AS A POINT, POLYLINE, OR POLYGON.
CENS80ID CENSUS 1980 BLOCK GROUP IDENTIFIER
STATE STATE
COUNTY COUNTY
PLACE PLACE
TRACTBNA CENSUS TRACT/BNA
BG BLOCK GROUP
ED_CODE ENUMERATION DISTRICT
LAT_DD LATITUDE IN DECIMAL DEGREES
LON_DD LONGITUDE IN DECIMAL DEGREES
LLSRCE LATITUDE/LONGITUDE SOURCE CODE
LL_FLAG LATITUDE/LONGITUDE QUALITY CONTROL FLAG CODE
FIPS FIPS CODE
UNIQUE CAF UNIQUE CODE
EDASUBEDA SUB-WATERSHED EDA/CDA/FDA CODE
DR_CODE EDA/FDA FLAG
HUC HUC CODE
C80POPUL 1980 TOTAL POPULATION
C80URBN 1980 URBAN POPULATION
C80NURBN 1980 NONURBAN POPULATION
C70RNFAR 1980 RURAL NO FARM POPULATION
C70RFARM 1980 RURAL FARM POPULATION
C80WHITE 1980 WHITE POPULATION
C80BLACK 1980 BLACK POPULATION
C80OTHER 1980 OTHER POPULATION
C80ENGLI 1980 ENGLISH LANGUAGE POPULATION
C80SPANI 1980 SPANISH LANGUAGE POPULATION
C80HLOTH 1980 OTHER LANGUAGE POPULATION
C80AGE1 1980 PERSONS UNDER 2 YEARS
C80AGE2 1980 PERSONS 3 TO 4 YEARS
C80AGE3 1980 PERSONS 5 YEARS
C80AGE4 1980 PERSONS 6 YEARS
C80AGE5 1980 PERSONS 7 TO 9 YEARS
C80AGE6 1980 PERSONS 10 TO 13 YEARS
C80AGE7 1980 PERSONS 14 YEARS
C80AGE8 1980 PERSONS 15 YEARS
C80AGE9 1980 PERSONS 16 YEARS
C80AGE10 1980 PERSONS 17 YEARS
C80AGE11 1980 PERSONS 18 YEARS
C80AGE12 1980 PERSONS 19 YEARS
C80AGE13 1980 PERSONS 20 YEARS
C80AGE14 1980 PERSONS 21 YEARS
C80AGE15 1980 PERSONS 22 TO 24 YEARS
C80AGE16 1980 PERSONS 25 TO 34 YEARS
C80AGE17 1980 PERSONS 35 TO 44 YEARS
C80AGE18 1980 PERSONS 45 TO 54 YEARS
C80AGE19 1980 PERSONS 55 TO 59 YEARS
C80AGE20 1980 PERSONS 60 TO 61 YEARS
C80AGE21 1980 PERSONS 62 TO 64 YEARS
C80AGE2 1980 PERSONS 65 TO 74 YEARS
C80AGE23 1980 PERSONS 75 AND OVER YEARS
C80MALE 1980 MALE POPULATION
C80FEMA 1980 FEMALE POPULATION
C80FI1 1980 FAMILY INCOME LESS THAN $ 5,000
C80FI2 1980 FAMILY INCOME $ 5,000 TO $ 9,999
C80FI3 1980 FAMILY INCOME $ 10,000 TO $ 14,999
C80FI4 1980 FAMILY INCOME $ 15,000 TO $ 24,999
C80FI5 1980 FAMILY INCOME $ 25,000 TO $ 49,999
C80FI6 1980 FAMILY INCOME $ 50,000 AND OVER
C80NCOLL 1980 PERSONS IN NO COLLEGE (NURSERY, KINDERGARTEN, ELEMENTARY, AND HIGH SCHOOL)
C80COLLE 1980 PERSONS IN COLLEGE
C80EDUC1 1980 PERSONS LESS THAN 12TH GRADE
C80EDUC2 1980 PERSONS HIGH SCHOOL GRADUATE
C80EDUC3 1980 PERSONS COLLEGE 1 TO 3 YEARS (SOME COLLEGE, ASSOCIATE DEGREE)
C80EDUC4 1980 PERSONS COLLGE 4 YEARS OR MORE (BACHELLORS OR GRADUATE DEGREE)
C80OCCU1 1980 PROFESSIONAL, TECHNICAL AND KINDRED WORKERS (PROF. AND SPECIALTY, TECH. AND RELATED SUPPORT)
C80OCCU2 1980 EXECUTIVE-ADMINISTRATIVE-MANAGERIAL (FARMERS AND FARM MANAGERS, MANAGERS, OFF. & PROPRIETORS)
C80OCCU3 1980 CLERICAL AND KINDRED WORKERS (ADMINISTRATIVE SUPPORT, INCLUDING CLERICAL)
C80OCCU4 1980 SALES WORKERS
C80OCCU5 1980 CRAFTSMEN, FOREMEN, AND KINDRED WORKERS (PRECISION PRODUCTION-CRAFT REPAIR)
C80OCCU6 1980 OPERATIVES AND KINDRED WORKERS (MACHINE OPERATORS-ASSEMBLERS-INSPECTORS)
C80OCCU7 1980 SERVICE WORKERS INCLUDING PRIVATE HOUSEHOLD (PRIV. HOUSEHOLD SERV., PROTECTIVE SERV., OTHER SERV.)
C80OCCU8 1980 FARM LABORERS AND FARM FOREMEN (FARMING-FORESTRY-FISHING)
C80OCCU9 1980 LABORERS EXCEPT FARM AND MINE (TRANSPORTATION AND MATERIAL MOVING)
C80INDU1 1980 CONSTRUCTION
C80INDU2 1980 MANUFACTURING OF NON-DURABLE GOODS
C80INDU3 1980 MANUFACTURING OF DURABLE GOODS
C80INDU4 1980 TRANSPORTATION
C80INDU5 1980 COMMUNICATIONS AND OTHER PUBLIC UTILITIES
C80INDU6 1980 WHOLESALE AND RETAIL TRADE
C80INDU7 1980 FINANCE, INSURANCE, BUSINESS, AND REPAIR
C80INDU8 1980 OTHER PROFESSIONAL AND RELATED SERVICES
C80INDU9 1980 EDUCATIONAL SERVICES
C80IND10 1980 PUBLIC ADMINISTRATION
C80IND11 1980 OTHER INDUSTRIES
C80ABOVE 1980 ABOVE POVERTY LINE
C80BELOW 1980 BELOW POVERTY LINE
C80NATIV 1980 NATIVE OF NATIVE OR FOREIGN PARENTS
C80FOREI 1980 FOREIGN BORN
C80FHOUS 1980 FAMILY HOUSING
C80GQUAR 1980 GROUP QUARTERS
C80ALLFA 1980 ALL FAMILIES
C80FAWFH 1980 FAMILIES WITH FEMALE HEAD
C80M14YR 1980 MALE
C80F14YR 1980 FEMALE
C80SHOUS 1980 SAME HOUSE
C80DHOUS 1980 DIFFERENT HOUSE
C80ABROA 1980 ABROAD
C80MLFOR 1980 MALES IN LABOR FORCE
C80MNLFO 1980 MALES NOT IN LABOR FORCE
C80FLFOR 1980 FEMALES IN LABOR FORCE
C80FNFLO 1980 FEMALES NOT IN LABOR FORCE
C80INCO1 1980 INCOME $ < 5,000
C80INCO2 1980 INCOME $5,000-$9,999
C80INCO3 1980 INCOME $10,000-$14,999
C80INCO4 1980 INCOME $15,000-$24,999
C80INCO5 1980 INCOME $25,000-$49,999
C80INCO6 1980 INCOME > $50,000
C80FHABO 1980 ABOVE POVERTY LEVEL
C80FHBEL 1980 BELOW POVERTY LEVEL
C80FABOV 1980 ABOVE POVERTY LEVEL
C80FBELO 1980 BELOW POVERTY LEVEL
C80OWNER 1980 OWNER OCCUPIED
C80RENTE 1980 RENTER OCCUPIED
C80TSTR1 1980 TENURE IN 1-UNIT STRUCTURE
C80TSTR2 1980 TENURE IN 2-UNIT STRUCTURE
C80TSTR3 1980 TENURE IN 3-4-UNIT STRUCTURE
C80TSTR4 1980 TENURE IN 5 OR MORE-UNIT STRUCTURE
C80TSTR5 1980 TENURE IN MOBILE HOMES, TRAILERS, OTHERS
C80GREN1 1980 MONTHLY GROSS RENT < $100
C80GREN2 1980 MONTHLY GROSS RENT $100-$199
C80GREN3 1980 MONTHLY GROSS RENT $200-$299
C80GREN4 1980 MONTHLY GROSS RENT > $300
C80GREN5 1980 MONTHLY GROSS RENT (NO CASH RENT)
C80TELE1 1980 OWNER OCCUPIED, TELEPHONE AVAILABLE
C80TELE2 1980 OWNER OCCUPIED, TELEPHONE NOT AVAILABLE
C80TELE3 1980 RENTER OCCUPIED, TELEPHONE AVAILABLE
C80TELE4 1980 RENTER OCCUPIED, TELEPHONE NOT AVAILABLE
C80AUTO1 1980 TOTAL OCCUPIED-1 AUTOMOBILE
C80AUTO2 1980 TOTAL OCCUPIED-2 AUTOMOBILE
C80AUTO3 1980 TOTAL OCCUPIED-3 OR MORE AUTOMOBILES
C80HEAT1 1980 UTILITY GAS
C80HEAT2 1980 BOTTLE, TANK, OR LP GAS
C80HEAT3 1980 ELECTRICITY
C80HEAT4 1980 OTHERS
C80HEAT5 1980 NO FUEL USED
SL NOT DEFINED BY SOURCE
C80COOK1 NOT DEFINED BY SOURCE
C80COOK2 NOT DEFINED BY SOURCE
C80COOK3 NOT DEFINED BY SOURCE
C80COOK4 NOT DEFINED BY SOURCE
C80COOK5 NOT DEFINED BY SOURCE
DESCRIPT FGDL ADDED ITEM BASED ON THE ITEM C80POPUL
USER NOTES:
The centroids from this dataset are taken from a CD supplied by the U.S. Census Bureau entitled "Spatial Patterns of Socioeconomic Data from 1970 to 2000". The CD was created to provide a source of time-series geo-referenced socioeconmic data. The census data was orginally used by NOAA to incorporate into their Coastal Assessment Framework (CAF). It is important to note that the centroids are accurate for the most part, however, should not be used for small scale studies. The data is designed for regional and state wide research. Certain scale datasets are not suitable for some project, analysis, or modelling purposes. Please be sure you are using the best available data. 1:24000 scale datasets are recommended for projects that are at the county level. 1:24000 data should NOT be used for high accuracy base mapping such as property parcel boundaries. 1:100000 scale datasets are recommended for projects that are at the multi-county or regional level. 1:250000 scale datasets are recommended for projects that are at the regional or state level or larger. Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analyses. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. For more information regarding scale and accuracy, see our web pages at: http://www.geoplan.ufl.edu/education.html These data are based on interpretation of available information and should not be construed as legally binding.
FGDL QUALITY ASSURANCE STATUS:
-Reprojected data to FGDL Albers HPGN (See "Map Projection Parameters" below) -Upcased all character records -DESCRIPT item was added based on the item C80POPUL
DATA LINEAGE SUMMARY:
This data was orginally taken from the U.S. Census Bureau CD entitled "Spatial Patterns of Socioeconomic Data from 1970 to 2000". The data was taken from the CD in text file format. The text file was converted to a dbf and a shapefile was created in ArcMap 8.2 by using the add XY command based on the decimal degree coordinates included in the table. The shapefile was then projected from geographic nad27 to albers hpgn.
MAP PROJECTION PARAMETERS:
Projection ALBERS Datum HPGN Units METERS Spheroid GRS1980 1st Standard Parallel 24 0 0.000 2nd Standard Parallel 31 30 0.000 Central Meridian -84 00 0.000 Latitude of Projection's Origin 24 0 0.000 False Easting (meters) 400000.00000 False Norting (meters) 0.00000
DATA SOURCES CONTACT(S):
Name: U.S. Bureau of the Census Geographic Division Address: Washington, DC 20233 Phone: 301-457-1056 Web site: CD Contact Person: Geo-Spatial Research and Standards Staff
FGDL CONTACT:
Name: Florida Geographic Data Library
Abbr. Name: FGDL
Address: Florida Geographic Data Library
431 Architecture
PO Box 115706
Gainesville, FL 32611-5706
Web site: http://www.fgdl.org
Contact FGDL:
Technical Support: http://www.fgdl.org/fgdlfeed.html
FGDL Frequently Asked Questions: http://www.fgdl.org/fgdlfaq.html
FGDL Mailing Lists: http://www.fgdl.org/fgdl-l.html
For FGDL Software: http://www.fgdl.org/software.html