FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION
TITLE: CENSUS BLOCK GROUP CENTROIDS, 1970
Geodataset Name: CBG70 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:CBG1970.DBF ITEM NAME WIDTH TYPE PRECISION SHAPE 6 SHAPEPOINT 0 CENS70ID 21 CHARACTER 0 STATE70 2 DECIMAL 0 CNTY70 3 DECIMAL 0 PLACE 4 DECIMAL 0 TRACT_B 4 DECIMAL 0 TRACT_S 2 DECIMAL 0 BG 1 DECIMAL 0 ED_B 4 DECIMAL 0 ED_S 1 CHARACTER 0 LAT1 19 DECIMAL 7 LON1 19 DECIMAL 7 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 C70POPUL 5 DECIMAL 0 C70URBN 5 DECIMAL 0 C70NURBN 4 DECIMAL 0 C70RNFAR 4 DECIMAL 0 C70RFARM 4 DECIMAL 0 C70WHITE 5 DECIMAL 0 C70BLACK 4 DECIMAL 0 C70OTHER 4 DECIMAL 0 C70ENGLI 5 DECIMAL 0 C70SPANI 4 DECIMAL 0 C70HLOTH 4 DECIMAL 0 C70AGE1 4 DECIMAL 0 C70AGE2 4 DECIMAL 0 C70AGE3 3 DECIMAL 0 C70AGE4 3 DECIMAL 0 C70AGE5 4 DECIMAL 0 C70AGE6 4 DECIMAL 0 C70AGE7 3 DECIMAL 0 C70AGE8 3 DECIMAL 0 C70AGE9 3 DECIMAL 0 C70AGE10 4 DECIMAL 0 C70AGE11 4 DECIMAL 0 C70AGE12 4 DECIMAL 0 C70AGE13 4 DECIMAL 0 C70AGE14 4 DECIMAL 0 C70AGE15 4 DECIMAL 0 C70AGE16 4 DECIMAL 0 C70AGE17 4 DECIMAL 0 C70AGE18 4 DECIMAL 0 C70AGE19 4 DECIMAL 0 C70AGE20 3 DECIMAL 0 C70AGE21 4 DECIMAL 0 C70AGE22 4 DECIMAL 0 C70AGE23 4 DECIMAL 0 C70MALE 5 DECIMAL 0 C70FEMA 5 DECIMAL 0 C70FI1 4 DECIMAL 0 C70FI2 4 DECIMAL 0 C70FI3 4 DECIMAL 0 C70FI4 4 DECIMAL 0 C70FI5 3 DECIMAL 0 C70FI6 3 DECIMAL 0 C70NCOLL 4 DECIMAL 0 C70COLLE 4 DECIMAL 0 C70EDUC1 4 DECIMAL 0 C70EDUC2 4 DECIMAL 0 C70EDUC3 4 DECIMAL 0 C70EDUC4 4 DECIMAL 0 C70OCCU1 4 DECIMAL 0 C70OCCU2 4 DECIMAL 0 C70OCCU3 4 DECIMAL 0 C70OCCU4 3 DECIMAL 0 C70OCCU5 3 DECIMAL 0 C70OCCU6 3 DECIMAL 0 C70OCCU7 4 DECIMAL 0 C70OCCU8 3 DECIMAL 0 C70OCCU9 3 DECIMAL 0 C70INDU1 3 DECIMAL 0 C70INDU2 4 DECIMAL 0 C70INDU3 4 DECIMAL 0 C70INDU4 3 DECIMAL 0 C70INDU5 3 DECIMAL 0 C70INDU6 4 DECIMAL 0 C70INDU7 4 DECIMAL 0 C70INDU8 4 DECIMAL 0 C70INDU9 4 DECIMAL 0 C70IND10 4 DECIMAL 0 C70IND11 3 DECIMAL 0 C70ABOVE 5 DECIMAL 0 C70BELOW 4 DECIMAL 0 C70NATIV 5 DECIMAL 0 C70FOREI 4 DECIMAL 0 C70FHOUS 5 DECIMAL 0 C70GQUAR 5 DECIMAL 0 C70ALLFA 4 DECIMAL 0 C70FAWFH 4 DECIMAL 0 C70M14YR 5 DECIMAL 0 C70F14YR 5 DECIMAL 0 C70SHOUS 5 DECIMAL 0 C70DHOUS 5 DECIMAL 0 C70ABROA 4 DECIMAL 0 C70MLFOR 5 DECIMAL 0 C70MNLFO 4 DECIMAL 0 C70FLFOR 4 DECIMAL 0 C70FNLFO 4 DECIMAL 0 C70INCO1 4 DECIMAL 0 C70INCO2 4 DECIMAL 0 C70INCO3 4 DECIMAL 0 C70INCO4 4 DECIMAL 0 C70INCO5 3 DECIMAL 0 C70INCO6 3 DECIMAL 0 C70FHABO 4 DECIMAL 0 C70FHBEL 3 DECIMAL 0 C70FABOV 4 DECIMAL 0 C70FBELO 3 DECIMAL 0 C70OWNER 4 DECIMAL 0 C70RENTE 4 DECIMAL 0 C70TSTR1 4 DECIMAL 0 C70TSTR2 4 DECIMAL 0 C70TSTR3 4 DECIMAL 0 C70TSTR4 4 DECIMAL 0 C70TSTR5 4 DECIMAL 0 C70GREN1 4 DECIMAL 0 C70GREN2 4 DECIMAL 0 C70GREN3 4 DECIMAL 0 C70GREN4 4 DECIMAL 0 C70GREN5 4 DECIMAL 0 C70TELE1 4 DECIMAL 0 C70TELE2 3 DECIMAL 0 C70TELE3 4 DECIMAL 0 C70TELE4 3 DECIMAL 0 C70AUTO1 4 DECIMAL 0 C70AUTO2 4 DECIMAL 0 C70AUTO3 3 DECIMAL 0 C70HEAT1 4 DECIMAL 0 C70HEAT2 3 DECIMAL 0 C70HEAT3 4 DECIMAL 0 C70HEAT4 4 DECIMAL 0 C70HEAT5 3 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. CENS70ID CENSUS 1970 BLOCK GROUP IDENTIFIER STATE70 1970 STATE CNTY70 1970 COUNTY PLACE PLACE TRACT_B TRACT (BASIC) TRACT_S TRACT (SUFFIX) BG BLOCK GROUP ED_B ENUMERATION DISTRICT (BASIC) ED_S ENUMERATION DISTRICT (SUFFIX LAT1 BLOCK GROUP CENTROID LATITUDE LON1 BLOCK GROUP CENTROID LONGITUDE 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 C70POPUL 1970 TOTAL POPULATION C70URBN 1970 URBAN POPULATION C70NURBN 1970 NONURBAN POPULATION C70RNFAR 1970 RURAL NO FARM POPULATION C70RFARM 1970 RURAL FARM POPULATION C70WHITE 1970 WHITE POPULATION C70BLACK 1970 BLACK POPULATION C70OTHER 1970 OTHER POPULATION C70ENGLI 1970 ENGLISH LANGUAGE POPULATION C70SPANI 1970 SPANISH LANGUAGE POPULATION C70HLOTH 1970 OTHER LANGUAGE POPULATION C70AGE1 1970 PERSONS UNDER 2 YEARS C70AGE2 1970 PERSONS 3 TO 4 YEARS C70AGE3 1970 PERSONS 5 YEARS C70AGE4 1970 PERSONS 6 YEARS C70AGE5 1970 PERSONS 7 TO 9 YEARS C70AGE6 1970 PERSONS 10 TO 13 YEARS C70AGE7 1970 PERSONS 14 YEARS C70AGE8 1970 PERSONS 15 YEARS C70AGE9 1970 PERSONS 16 YEARS C70AGE10 1970 PERSONS 17 YEARS C70AGE11 1970 PERSONS 18 YEARS C70AGE12 1970 PERSONS 19 YEARS C70AGE13 1970 PERSONS 20 YEARS C70AGE14 1970 PERSONS 21 YEARS C70AGE15 1970 PERSONS 22 TO 24 YEARS C70AGE16 1970 PERSONS 25 TO 34 YEARS C70AGE17 1970 PERSONS 35 TO 44 YEARS C70AGE18 1970 PERSONS 45 TO 54 YEARS C70AGE19 1970 PERSONS 55 TO 59 YEARS C70AGE20 1970 PERSONS 60 TO 61 YEARS C70AGE21 1970 PERSONS 62 TO 64 YEARS C70AGE22 1970 PERSONS 65 TO 74 YEARS C70AGE23 1970 PERSONS 75 AND OVER YEARS C70MALE 1970 MALE POPULATION C70FEMA 1970 FEMALE POPULATION C70FI1 1970 FAMILY INCOME LESS THAN $ 5,000 C70FI2 1970 FAMILY INCOME $ 5,000 TO $ 9,999 C70FI3 1970 FAMILY INCOME $ 10,000 TO $ 14,999 C70FI4 1970 FAMILY INCOME $ 15,000 TO $ 24,999 C70FI5 1970 FAMILY INCOME $ 25,000 TO $ 49,999 C70FI6 1970 FAMILY INCOME $ 50,000 AND OVER C70NCOLL 1970 PERSONS IN NO COLLEGE (NURSERY, KINDERGARTEN, ELEMENTARY, AND HIGH SCHOOL) C70COLLE 1970 PERSONS IN COLLEGE C70EDUC1 1970 PERSONS LESS THAN 12TH GRADE C70EDUC2 1970 PERSONS HIGH SCHOOL GRADUATE C70EDUC3 1970 PERSONS COLLEGE 1 TO 3 YEARS (SOME COLLEGE, ASSOCIATE DEGREE) C70EDUC4 1970 PERSONS COLLGE 4 YEARS OR MORE (BACHELLORS OR GRADUATE DEGREE) C70OCCU1 1970 PROFESSIONAL, TECHNICAL AND KINDRED WORKERS (PROF. AND SPECIALTY, TECH. AND RELATED SUPPORT) C70OCCU2 1970 EXECUTIVE-ADMINISTRATIVE-MANAGERIAL (FARMERS AND FARM MANAGERS, MANAGERS, OFF. & PROPRIETORS) C70OCCU3 1970 CLERICAL AND KINDRED WORKERS (ADMINISTRATIVE SUPPORT, INCLUDING CLERICAL) C70OCCU4 1970 SALES WORKERS C70OCCU5 1970 CRAFTSMEN, FOREMEN, AND KINDRED WORKERS (PRECISION PRODUCTION-CRAFT REPAIR) C70OCCU6 1970 OPERATIVES AND KINDRED WORKERS (MACHINE OPERATORS-ASSEMBLERS-INSPECTORS) C70OCCU7 1970 SERVICE WORKERS INCLUDING PRIVATE HOUSEHOLD (PRIV. HOUSEHOLD SERV., PROTECTIVE SERV., OTHER SERV.) C70OCCU8 1970 FARM LABORERS AND FARM FOREMEN (FARMING-FORESTRY-FISHING) C70OCCU9 1970 LABORERS EXCEPT FARM AND MINE (TRANSPORTATION AND MATERIAL MOVING) C70INDU1 1970 CONSTRUCTION C70INDU2 1970 MANUFACTURING OF NON-DURABLE GOODS C70INDU3 1970 MANUFACTURING OF DURABLE GOODS C70INDU4 1970 TRANSPORTATION C70INDU5 1970 COMMUNICATIONS AND OTHER PUBLIC UTILITIES C70INDU6 1970 WHOLESALE AND RETAIL TRADE C70INDU7 1970 FINANCE, INSURANCE, BUSINESS, AND REPAIR C70INDU8 1970 OTHER PROFESSIONAL AND RELATED SERVICES C70INDU9 1970 EDUCATIONAL SERVICES C70IND10 1970 PUBLIC ADMINISTRATION C70IND11 1970 OTHER INDUSTRIES C70ABOVE 1970 ABOVE POVERTY LINE C70BELOW 1970 BELOW POVERTY LINE C70NATIV 1970 NATIVE OF NATIVE OR FOREIGN PARENTS C70FOREI 1970 FOREIGN BORN C70FHOUS 1970 FAMILY HOUSING C70GQUAR 1970 GROUP QUARTERS C70ALLFA 1970 ALL FAMILIES C70FAWFH 1970 FAMILIES WITH FEMALE HEAD C70M14YR 1970 MALE C70F14YR 1970 FEMALE C70SHOUS 1970 SAME HOUSE C70DHOUS 1970 DIFFERENT HOUSE C70ABROA 1970 ABROAD C70MLFOR 1970 MALES IN LABOR FORCE C70MNLFO 1970 MALES NOT IN LABOR FORCE C70FLFOR 1970 FEMALES IN LABOR FORCE C70FNFLO 1970 FEMALES NOT IN LABOR FORCE C70INCO1 1970 INCOME $ < 5,000 C70INCO2 1970 INCOME $5,000-$9,999 C70INCO3 1970 INCOME $10,000-$14,999 C70INCO4 1970 INCOME $15,000-$24,999 C70INCO5 1970 INCOME $25,000-$49,999 C70INCO6 1970 INCOME > $50,000 C70FHABO 1970 ABOVE POVERTY LEVEL C70FHBEL 1970 BELOW POVERTY LEVEL C70FABOV 1970 ABOVE POVERTY LEVEL C70FBELO 1970 BELOW POVERTY LEVEL C70OWNER 1970 OWNER OCCUPIED C70RENTE 1970 RENTER OCCUPIED C70TSTR1 1970 TENURE IN 1-UNIT STRUCTURE C70TSTR2 1970 TENURE IN 2-UNIT STRUCTURE C70TSTR3 1970 TENURE IN 3-4-UNIT STRUCTURE C70TSTR4 1970 TENURE IN 5 OR MORE-UNIT STRUCTURE C70TSTR5 1970 TENURE IN MOBILE HOMES, TRAILERS, OTHERS C70GREN1 1970 MONTHLY GROSS RENT < $100 C70GREN2 1970 MONTHLY GROSS RENT $100-$199 C70GREN3 1970 MONTHLY GROSS RENT $200-$299 C70GREN4 1970 MONTHLY GROSS RENT > $300 C70GREN5 1970 MONTHLY GROSS RENT (NO CASH RENT) C70TELE1 1970 OWNER OCCUPIED, TELEPHONE AVAILABLE C70TELE2 1970 OWNER OCCUPIED, TELEPHONE NOT AVAILABLE C70TELE3 1970 RENTER OCCUPIED, TELEPHONE AVAILABLE C70TELE4 1970 RENTER OCCUPIED, TELEPHONE NOT AVAILABLE C70AUTO1 1970 TOTAL OCCUPIED-1 AUTOMOBILE C70AUTO2 1970 TOTAL OCCUPIED-2 AUTOMOBILE C70AUTO3 1970 TOTAL OCCUPIED-3 OR MORE AUTOMOBILES C70HEAT1 1970 UTILITY GAS C70HEAT2 1970 BOTTLE, TANK, OR LP GAS C70HEAT3 1970 ELECTRICITY C70HEAT4 1970 OTHERS C70HEAT5 1970 NO FUEL USED DESCRIPT FGDL ADDED ITEM BASED ON THE ITEM C70POPUL
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 C70POPUL
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