missouri.cdp10

Description

missouri.cdp10 is a SpatialPolygonsDataFrame with polygons made from the 2010 US Census tiger/line boundary files (http://www.census.gov/geo/www/tiger/) for Census Tracts. It also contains 461 variables from the Summary File 1 (SF 1) which contains the 100-percent data (http://www.census.gov/prod/cen2010/doc/sf1.pdf).

All polygons are projected in CRS(" +proj=longlat +ellps=GRS80 +datum=NAD83 +no_defs +towgs84=0,0,0")

Usage

1

Details

ID Variables

data field name Full Description
name city name
nameAlevel Name [town/city/etc] (designation)
state State FIPS code
place FIPS code

Census Variables

Census SF1 Field Name Full Description
P0010001 TOTAL POPULATION
P0020001 URBAN AND RURAL
P0020002 Urban:
P0020003 Inside urbanized areas
P0020004 Inside urban clusters
P0020005 Rural
P0020006 Not defined for this file
P0030001 RACE
P0030002 White alone
P0030003 Black or African American alone
P0030004 American Indian and Alaska Native alone
P0030005 Asian alone
P0030006 Native Hawaiian and Other Pacific Islander alone
P0030007 Some Other Race alone
P0030008 Two or More Races
P0040001 HISPANIC OR LATINO ORIGIN
P0040002 Not Hispanic or Latino
P0040003 Hispanic or Latino
P0050001 HISPANIC OR LATINO ORIGIN BY RACE
P0050002 Not Hispanic or Latino:
P0050003 White alone
P0050004 Black or African American alone
P0050005 American Indian and Alaska Native alone
P0050006 Asian alone
P0050007 Native Hawaiian and Other Pacific Islander alone
P0050008 Some Other Race alone
P0050009 Two or More Races
P0050010 Hispanic or Latino:
P0050011 White alone
P0050012 Black or African American alone
P0050013 American Indian and Alaska Native alone
P0050014 Asian alone
P0050015 Native Hawaiian and Other Pacific Islander alone
P0050016 Some Other Race alone
P0050017 Two or More Races
P0060001 RACE (TOTAL RACES TALLIED)
P0060002 White alone or in combination with one or more other races
P0060003 Black or African American alone or in combination with one or more other races
P0060004 American Indian and Alaska Native alone or in combination with one or more other races
P0060005 Asian alone or in combination with one or more other races
P0060006 Native Hawaiian and Other Pacific Islander alone or in combination with one or more other races
P0060007 Some Other Race alone or in combination with one or more other races
P0070001 HISPANIC OR LATINO ORIGIN BY RACE (TOTAL RACES TALLIED)
P0070002 Not Hispanic or Latino:
P0070003 White alone or in combination with one or more other races
P0070004 Black or African American alone or in combination with one or more other races
P0070005 American Indian and Alaska Native alone or in combination with one or more other races
P0070006 Asian alone or in combination with one or more other races
P0070007 Native Hawaiian and Other Pacific Islander alone or in combination with one or more other races
P0070008 Some Other Race alone or in combination with one or more other races
P0070009 Hispanic or Latino:
P0070010 White alone or in combination with one or more other races
P0070011 Black or African American alone or in combination with one or more other races
P0070012 American Indian and Alaska Native alone or in combination with one or more other races
P0070013 Asian alone or in combination with one or more other races
P0070014 Native Hawaiian and Other Pacific Islander alone or in combination with one or more other races
P0070015 Some Other Race alone or in combination with one or more other races
P0080001 RACE
P0080002 Population of one race:
P0080003 White alone
P0080004 Black or African American alone
P0080005 American Indian and Alaska Native alone
P0080006 Asian alone
P0080007 Native Hawaiian and Other Pacific Islander alone
P0080008 Some Other Race alone
P0080009 Two or More Races:
P0080010 Population of two races:
P0080011 White; Black or African American
P0080012 White; American Indian and Alaska Native
P0080013 White; Asian
P0080014 White; Native Hawaiian and Other Pacific Islander
P0080015 White; Some Other Race
P0080016 Black or African American; American Indian and Alaska Native
P0080017 Black or African American; Asian
P0080018 Black or African American; Native Hawaiian and Other Pacific Islander
P0080019 Black or African American; Some Other Race
P0080020 American Indian and Alaska Native; Asian
P0080021 American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander
P0080022 American Indian and Alaska Native; Some Other Race
P0080023 Asian; Native Hawaiian and Other Pacific Islander
P0080024 Asian; Some Other Race
P0080025 Native Hawaiian and Other Pacific Islander; Some Other Race
P0080026 Population of three races:
P0080027 White; Black or African American; American Indian and Alaska Native
P0080028 White; Black or African American; Asian
P0080029 White; Black or African American; Native Hawaiian and Other Pacific Islander
P0080030 White; Black or African American; Some Other Race
P0080031 White; American Indian and Alaska Native; Asian
P0080032 White; American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander
P0080033 White; American Indian and Alaska Native; Some Other Race
P0080034 White; Asian; Native Hawaiian and Other Pacific Islander
P0080035 White; Asian; Some Other Race
P0080036 White; Native Hawaiian and Other Pacific Islander; Some Other Race
P0080037 Black or African American; American Indian and Alaska Native; Asian
P0080038 Black or African American; American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander
P0080039 Black or African American; American Indian and Alaska Native; Some Other Race
P0080040 Black or African American; Asian; Native Hawaiian and Other Pacific Islander
P0080041 Black or African American; Asian; Some Other Race
P0080042 Black or African American; Native Hawaiian and Other Pacific Islander; Some Other Race
P0080043 American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander
P0080044 American Indian and Alaska Native; Asian; Some Other Race
P0080045 American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander; Some Other Race
P0080046 Asian; Native Hawaiian and Other Pacific Islander; Some Other Race
P0080047 Population of four races:
P0080048 White; Black or African American; American Indian and Alaska Native; Asian
P0080049 White; Black or African American; American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander
P0080050 White; Black or African American; American Indian and Alaska Native; Some Other Race
P0080051 White; Black or African American; Asian; Native Hawaiian and Other Pacific Islander
P0080052 White; Black or African American; Asian; Some Other Race
P0080053 White; Black or African American; Native Hawaiian and Other Pacific Islander; Some Other Race
P0080054 White; American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander
P0080055 White; American Indian and Alaska Native; Asian; Some Other Race
P0080056 White; American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander; Some Other Race
P0080057 White; Asian; Native Hawaiian and Other Pacific Islander; Some Other Race
P0080058 Black or African American; American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander
P0080059 Black or African American; American Indian and Alaska Native; Asian; Some Other Race
P0080060 Black or African American; American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander; Some Other Race
P0080061 Black or African American; Asian; Native Hawaiian and Other Pacific Islander; Some Other Race
P0080062 American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander; Some Other Race
P0080063 Population of five races:
P0080064 White; Black or African American; American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander
P0080065 White; Black or African American; American Indian and Alaska Native; Asian; Some Other Race
P0080066 White; Black or African American; American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander; Some Other Race
P0080067 White; Black or African American; Asian; Native Hawaiian and Other Pacific Islander; Some Other Race
P0080068 White; American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander; Some Other Race
P0080069 Black or African American; American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander; Some Other Race
P0080070 Population of six races:
P0080071 White; Black or African American; American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander; Some Other Race
P0090001 HISPANIC OR LATINO, AND NOT HISPANIC OR LATINO BY RACE
P0090002 Hispanic or Latino
P0090003 Not Hispanic or Latino:
P0090004 Population of one race:
P0090005 White alone
P0090006 Black or African American alone
P0090007 American Indian and Alaska Native alone
P0090008 Asian alone
P0090009 Native Hawaiian and Other Pacific Islander alone
P0090010 Some Other Race alone
P0090011 Two or More Races:
P0090012 Population of two races:
P0090013 White; Black or African American
P0090014 White; American Indian and Alaska Native
P0090015 White; Asian
P0090016 White; Native Hawaiian and Other Pacific Islander
P0090017 White; Some Other Race
P0090018 Black or African American; American Indian and Alaska Native
P0090019 Black or African American; Asian
P0090020 Black or African American; Native Hawaiian and Other Pacific Islander
P0090021 Black or African American; Some Other Race
P0090022 American Indian and Alaska Native; Asian
P0090023 American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander
P0090024 American Indian and Alaska Native; Some Other Race
P0090025 Asian; Native Hawaiian and Other Pacific Islander
P0090026 Asian; Some Other Race
P0090027 Native Hawaiian and Other Pacific Islander; Some Other Race
P0090028 Population of three races:
P0090029 White; Black or African American; American Indian and Alaska Native
P0090030 White; Black or African American; Asian
P0090031 White; Black or African American; Native Hawaiian and Other Pacific Islander
P0090032 White; Black or African American; Some Other Race
P0090033 White; American Indian and Alaska Native; Asian
P0090034 White; American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander
P0090035 White; American Indian and Alaska Native; Some Other Race
P0090036 White; Asian; Native Hawaiian and Other Pacific Islander
P0090037 White; Asian; Some Other Race
P0090038 White; Native Hawaiian and Other Pacific Islander; Some Other Race
P0090039 Black or African American; American Indian and Alaska Native; Asian
P0090040 Black or African American; American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander
P0090041 Black or African American; American Indian and Alaska Native; Some Other Race
P0090042 Black or African American; Asian; Native Hawaiian and Other Pacific Islander
P0090043 Black or African American; Asian; Some Other Race
P0090044 Black or African American; Native Hawaiian and Other Pacific Islander; Some Other Race
P0090045 American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander
P0090046 American Indian and Alaska Native; Asian; Some Other Race
P0090047 American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander; Some Other Race
P0090048 Asian; Native Hawaiian and Other Pacific Islander; Some Other Race
P0090049 Population of four races:
P0090050 White; Black or African American; American Indian and Alaska Native; Asian
P0090051 White; Black or African American; American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander
P0090052 White; Black or African American; American Indian and Alaska Native; Some Other Race
P0090053 White; Black or African American; Asian; Native Hawaiian and Other Pacific Islander
P0090054 White; Black or African American; Asian; Some Other Race
P0090055 White; Black or African American; Native Hawaiian and Other Pacific Islander; Some Other Race
P0090056 White; American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander
P0090057 White; American Indian and Alaska Native; Asian; Some Other Race
P0090058 White; American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander; Some Other Race
P0090059 White; Asian; Native Hawaiian and Other Pacific Islander; Some Other Race
P0090060 Black or African American; American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander
P0090061 Black or African American; American Indian and Alaska Native; Asian; Some Other Race
P0090062 Black or African American; American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander; Some Other Race
P0090063 Black or African American; Asian; Native Hawaiian and Other Pacific Islander; Some Other Race
P0090064 American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander; Some Other Race
P0090065 Population of five races:
P0090066 White; Black or African American; American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander
P0090067 White; Black or African American; American Indian and Alaska Native; Asian; Some Other Race
P0090068 White; Black or African American; American Indian and Alaska Native; Native Hawaiian and Other Pacific Islander; Some Other Race
P0090069 White; Black or African American; Asian; Native Hawaiian and Other Pacific Islander; Some Other Race
P0090070 White; American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander; Some Other Race
P0090071 Black or African American; American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander; Some Other Race
P0090072 Population of six races:
P0090073 White; Black or African American; American Indian and Alaska Native; Asian; Native Hawaiian and Other Pacific Islander; Some Other Race
H0010001 HOUSING UNITS
H0020001 URBAN AND RURAL
H0020002 Urban:
H0020003 Inside urbanized areas
H0020004 Inside urban clusters
H0020005 Rural
H0020006 Not defined for this file
H0030001 OCCUPANCY STATUS
H0030002 Occupied
H0030003 Vacant
H0040001 TENURE
H0040002 Owned with a mortgage or a loan
H0040003 Owned free and clear
H0040004 Renter occupied
H0050001 VACANCY STATUS
H0050002 For rent
H0050003 Rented, not occupied
H0050004 For sale only
H0050005 Sold, not occupied
H0050006 For seasonal, recreational, or occasional use
H0050007 For migrant workers
H0050008 Other vacant
H0060001 RACE OF HHER
H0060002 Householder who is White alone
H0060003 Householder who is Black or African American alone
H0060004 Householder who is American Indian and Alaska Native alone
H0060005 Householder who is Asian alone
H0060006 Householder who is Native Hawaiian and Other Pacific Islander alone
H0060007 Householder who is Some Other Race alone
H0060008 Householder who is Two or More Races
H0070001 HISPANIC OR LATINO ORIGIN OF HHER BY RACE OF HHER
H0070002 Not Hispanic or Latino householder:
H0070003 Householder who is White alone
H0070004 Householder who is Black or African American alone
H0070005 Householder who is American Indian and Alaska Native alone
H0070006 Householder who is Asian alone
H0070007 Householder who is Native Hawaiian and Other Pacific Islander alone
H0070008 Householder who is Some Other Race alone
H0070009 Householder who is Two or More Races
H0070010 Hispanic or Latino householder:
H0070011 Householder who is White alone
H0070012 Householder who is Black or African American alone
H0070013 Householder who is American Indian and Alaska Native alone
H0070014 Householder who is Asian alone
H0070015 Householder who is Native Hawaiian and Other Pacific Islander alone
H0070016 Householder who is Some Other Race alone
H0070017 Householder who is Two or More Races
H0080001 TOTAL RACES TALLIED FOR HHERS
H0080002 White alone or in combination with one or more other races
H0080003 Black or African American alone or in combination with one or more other races
H0080004 American Indian and Alaska Native alone or in combination with one or more other races
H0080005 Asian alone or in combination with one or more other races
H0080006 Native Hawaiian and Other Pacific Islander alone or in combination with one or more other races
H0080007 Some Other Race alone or in combination with one or more other races
H0090001 HISPANIC OR LATINO ORIGIN OF HHERS BY TOTAL RACES TALLIED
H0090002 Total races tallied for Not Hispanic or Latino householders:
H0090003 White alone or in combination with one or more other races
H0090004 Black or African American alone or in combination with one or more other races
H0090005 American Indian and Alaska Native alone or in combination with one or more other races
H0090006 Asian alone or in combination with one or more other races
H0090007 Native Hawaiian and Other Pacific Islander alone or in combination with one or more other races
H0090008 Some Other Race alone or in combination with one or more other races
H0090009 Total races tallied for Hispanic or Latino householders:
H0090010 White alone or in combination with one or more other races
H0090011 Black or African American alone or in combination with one or more other races
H0090012 American Indian and Alaska Native alone or in combination with one or more other races
H0090013 Asian alone or in combination with one or more other races
H0090014 Native Hawaiian and Other Pacific Islander alone or in combination with one or more other races
H0090015 Some Other Race alone or in combination with one or more other races
H0100001 TOTAL POPULATION IN OCCUPIED HOUSING UNITS
H0110001 TOTAL POPULATION IN OCCUPIED HOUSING UNITS BY TENURE
H0110002 Owned with a mortgage or a loan
H0110003 Owned free and clear
H0110004 Renter occupied
H0120001 AVE. HH SIZE OF OCCUPIED HOUSING UNITS BY TENURE (2 EXPRESSED DECIMALS)
H0120002 Owner occupied
H0120003 Renter occupied
H0130001 HH SIZE
H0130002 1-person household
H0130003 2-person household
H0130004 3-person household
H0130005 4-person household
H0130006 5-person household
H0130007 6-person household
H0130008 7-or-more-person household
H0140001 TENURE BY RACE OF HHER
H0140002 Owner occupied:
H0140003 Householder who is White alone
H0140004 Householder who is Black or African American alone
H0140005 Householder who is American Indian and Alaska Native alone
H0140006 Householder who is Asian alone
H0140007 Householder who is Native Hawaiian and Other Pacific Islander alone
H0140008 Householder who is Some Other Race alone
H0140009 Householder who is Two or More Races
H0140010 Renter occupied:
H0140011 Householder who is White alone
H0140012 Householder who is Black or African American alone
H0140013 Householder who is American Indian and Alaska Native alone
H0140014 Householder who is Asian alone
H0140015 Householder who is Native Hawaiian and Other Pacific Islander alone
H0140016 Householder who is Some Other Race alone
H0140017 Householder who is Two or More Races
H0150001 TENURE BY HISPANIC OR LATINO ORIGIN OF HHER
H0150002 Owner occupied:
H0150003 Not Hispanic or Latino householder
H0150004 Hispanic or Latino householder
H0150005 Renter occupied:
H0150006 Not Hispanic or Latino householder
H0150007 Hispanic or Latino householder
H0160001 TENURE BY HH SIZE
H0160002 Owner occupied:
H0160003 1-person household
H0160004 2-person household
H0160005 3-person household
H0160006 4-person household
H0160007 5-person household
H0160008 6-person household
H0160009 7-or-more-person household
H0160010 Renter occupied:
H0160011 1-person household
H0160012 2-person household
H0160013 3-person household
H0160014 4-person household
H0160015 5-person household
H0160016 6-person household
H0160017 7-or-more-person household
H0170001 TENURE BY AGE OF HHER
H0170002 Owner occupied:
H0170003 Householder 15 to 24 years
H0170004 Householder 25 to 34 years
H0170005 Householder 35 to 44 years
H0170006 Householder 45 to 54 years
H0170007 Householder 55 to 59 years
H0170008 Householder 60 to 64 years
H0170009 Householder 65 to 74 years
H0170010 Householder 75 to 84 years
H0170011 Householder 85 years and over
H0170012 Renter occupied:
H0170013 Householder 15 to 24 years
H0170014 Householder 25 to 34 years
H0170015 Householder 35 to 44 years
H0170016 Householder 45 to 54 years
H0170017 Householder 55 to 59 years
H0170018 Householder 60 to 64 years
H0170019 Householder 65 to 74 years
H0170020 Householder 75 to 84 years
H0170021 Householder 85 years and over
H0180001 TENURE BY HH TYPE BY AGE OF HHER
H0180002 Owner occupied:
H0180003 Family households:
H0180004 Husband-wife family:
H0180005 Householder 15 to 34 years
H0180006 Householder 35 to 64 years
H0180007 Householder 65 years and over
H0180008 Other family:
H0180009 Male householder, no wife present:
H0180010 Householder 15 to 34 years
H0180011 Householder 35 to 64 years
H0180012 Householder 65 years and over
H0180013 Female householder, no husband present:
H0180014 Householder 15 to 34 years
H0180015 Householder 35 to 64 years
H0180016 Householder 65 years and over
H0180017 Nonfamily households:
H0180018 Male householder:
H0180019 Living alone:
H0180020 Householder 15 to 34 years
H0180021 Householder 35 to 64 years
H0180022 Householder 65 years and over
H0180023 Not living alone:
H0180024 Householder 15 to 34 years
H0180025 Householder 35 to 64 years
H0180026 Householder 65 years and over
H0180027 Female householder:
H0180028 Living alone:
H0180029 Householder 15 to 34 years
H0180030 Householder 35 to 64 years
H0180031 Householder 65 years and over
H0180032 Not living alone:
H0180033 Householder 15 to 34 years
H0180034 Householder 35 to 64 years
H0180035 Householder 65 years and over
H0180036 Renter occupied:
H0180037 Family households:
H0180038 Husband-wife family:
H0180039 Householder 15 to 34 years
H0180040 Householder 35 to 64 years
H0180041 Householder 65 years and over
H0180042 Other family:
H0180043 Male householder, no wife present:
H0180044 Householder 15 to 34 years
H0180045 Householder 35 to 64 years
H0180046 Householder 65 years and over
H0180047 Female householder, no husband present:
H0180048 Householder 15 to 34 years
H0180049 Householder 35 to 64 years
H0180050 Householder 65 years and over
H0180051 Nonfamily households:
H0180052 Male householder:
H0180053 Living alone:
H0180054 Householder 15 to 34 years
H0180055 Householder 35 to 64 years
H0180056 Householder 65 years and over
H0180057 Not living alone:
H0180058 Householder 15 to 34 years
H0180059 Householder 35 to 64 years
H0180060 Householder 65 years and over
H0180061 Female householder:
H0180062 Living alone:
H0180063 Householder 15 to 34 years
H0180064 Householder 35 to 64 years
H0180065 Householder 65 years and over
H0180066 Not living alone:
H0180067 Householder 15 to 34 years
H0180068 Householder 35 to 64 years
H0180069 Householder 65 years and over
H0190001 TENURE BY PRESENCE OF PEOPLE UNDER 18 YEARS (EXCLUDING HHERS, SPOUSES, AND UNMARRIED PARTNERS)
H0190002 Owner-occupied:
H0190003 With children under 18 years
H0190004 No children under 18 years
H0190005 Renter-occupied:
H0190006 With children under 18 years
H0190007 No children under 18 years
H0200001 OCCUPIED HOUSING UNITS SUBSTITUTED
H0200002 Substituted
H0200003 Not substituted
H0210001 ALLOCATION OF VACANCY STATUS
H0210002 Allocated
H0210003 Not allocated
H0220001 ALLOCATION OF TENURE
H0220002 Allocated
H0220003 Not allocated
H011A001 TOTAL POPULATION IN OCCUPIED HOUSING UNITS BY TENURE (WHITE ALONE HHER)
H011A002 Owned with a mortgage or a loan
H011A003 Owned free and clear
H011A004 Renter occupied
H011B001 TOTAL POPULATION IN OCCUPIED HOUSING UNITS BY TENURE (BLACK OR AFRICAN AMERICAN ALONE HHER)
H011B002 Owned with a mortgage or a loan
H011B003 Owned free and clear
H011B004 Renter occupied
H011C001 TOTAL POPULATION IN OCCUPIED HOUSING UNITS BY TENURE (AMERICAN INDIAN AND ALASKA NATIVE ALONE HHER)
H011C002 Owned with a mortgage or a loan
H011C003 Owned free and clear
H011C004 Renter occupied
H011D001 TOTAL POPULATION IN OCCUPIED HOUSING UNITS BY TENURE (ASIAN ALONE HHER)
H011D002 Owned with a mortgage or a loan
H011D003 Owned free and clear
H011D004 Renter occupied
H011E001 TOTAL POPULATION IN OCCUPIED HOUSING UNITS BY TENURE (NATIVE HAWAIIAN AND OTHER PACIFIC ISLANDER ALONE HHER)
H011E002 Owned with a mortgage or a loan
H011E003 Owned free and clear
H011E004 Renter occupied
H011F001 TOTAL POPULATION IN OCCUPIED HOUSING UNITS BY TENURE (SOME OTHER RACE ALONE HHER)
H011F002 Owned with a mortgage or a loan
H011F003 Owned free and clear
H011F004 Renter occupied

Source

Census 2000 Summary File 1 [name of state1 or United States]/prepared by the U.S. Census Bureau, 2001.

References

Zack W. Almquist (2010). US Census Spatial and Demographic Data in R: The UScensus2000 Suite of Packages. Journal of Statistical Software, 37(6), 1-31. http://www.jstatsoft.org/v37/i06/.
http://www.census.gov/
http://www2.census.gov/cgi-bin/shapefiles/national-files
http://www.census.gov/prod/cen2000/doc/sf1.pdf

Examples

1
2

Want to suggest features or report bugs for rdrr.io? Use the GitHub issue tracker.