20171219
10595200
1.0
FGDC CSDGM Metadata
FALSE
Tract70Ply
389647.855000
407860.217000
126006.166000
147464.165000
1
002
Projected
GCS_North_American_1983
Linear Unit: Meter (1.000000)
NAD_1983_StatePlane_Maryland_FIPS_1900
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20210827
21451400
20210827
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ISO19139
D.C. Office of the Chief Technology Officer
GIS Data Coordinator
(202) 727-5660
200 I Street SE, 5th Floor
Washington
DC
20003
US
dcgis@dc.gov
8:30 am - 5 pm
ArcGIS Metadata
1.0
D.C. Office of the Chief Technology Officer
GIS Data Coordinator
(202) 727-5660
200 I Street SE, 5th Floor
Washington
DC
20003
US
dcgis@dc.gov
8:30 am - 5 pm
DC datasets can be downloaded from "http://opendata.dc.gov".
Feature Class
Census Tracts - 1970
2002-06-12T00:00:00
2018-01-05T00:00:00
Office of the Chief Technology Officer
DC GIS
DC Geographic Information System
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Census Year 1970 Census Tracts. The dataset contains polygons representing CY 1970 census tracts, created as part of the D.C. Geographic Information System (DC GIS) for the D.C. Office of the Chief Technology Officer (OCTO) and participating D.C. government agencies. Census tracts were identified from maps provided by the U.S. Census Bureau and the D.C. Office of Planning. The tract polygons were created by selecting street arcs from the WGIS planimetric street centerlines. Where necessary, polygons were also heads-up digitized from 1995/1999 orthophotographs. METADATA CONTENT IS IN PROCESS OF VALIDATION AND SUBJECT TO CHANGE.</SPAN></P></DIV></DIV></DIV>
This data is used for the planning and management of Washington, D.C. by local government agencies.
D.C. Office of Planning, U.S. Census Bureau
D.C. Office of the Chief Technology Officer
GIS Data Coordinator
(202) 727-5660
200 I Street SE, 5th Floor
Washington
DC
20003
US
dcgis@dc.gov
8:30 am - 5 pm
Washington
D.C.
DC GIS
DCGIS
DC
District of Columbia
Government Jurisdiction
boundary
Census
Tract
Census Tract
society
Open Data
Washington DC
DC GIS
District of Columbia
Demographic
People
society
Census
Washington
D.C.
Government Jurisdiction
DC
Census Tract
Tract
DCGIS
boundary
DC Geographic Information System
DC GIS
vector digital data
ground condition
1970-01-01
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This work is licensed under a </SPAN><A href="http://creativecommons.org/licenses/by/4.0/"><SPAN>Creative Commons Attribution 4.0 International License</SPAN></A><SPAN>.</SPAN></P></DIV></DIV></DIV>
Version 6.2 (Build 9200) ; Esri ArcGIS 10.8.1.14362
1
-77.119501
-76.909265
38.995117
38.801755
In process of validation by source and/or responsible agency.
Data believed to be complete and accurate, subject to change. Digital version compared with original source data for accuracy and completeness. In process of validation by source and/or responsible agency.
Data believed to be complete and accurate as of the time period cited. Subject to change. Digital version compared with original source data for accuracy and completeness. In process of validation by source and/or responsible agency.
In process of validation by source and/or responsible agency.
N/A
boundaries and attributes
18000
1970 Census Tracts Map of the District of Columbia
1970 Census Tracts
1970-01-01
Statistical Systems Group, Office of Budget and Executive Management, Executive Office of the Mayor
map
publication date
1930 Census tracts were identified from public records (U.S. Census Bureau and D.C. Office of Planning) and initially created by selecting street arcs from the WGIS planimetric street centerlines. Where necessary, tracts were also heads-up digitized from 1995 orthophotographs. The digitized arcs and polygons were converted to shapefiles. The census tract datasets were selected using the shapefile from the snapbase coverage, creating coincident geography with the other DC GIS datasets. Digitized lines lacking a corresponding planimetric feature were retained. Snapbase arc attributes were populated with appropriate census designations. These planimetric features were built as lines and converted to polygons. Census coverages from each census year were built together since they share topology. Planimetrics were created at a scale of 1:1,000. This means that a well defined feature falls within two feet of true position. When imported into the DC GIS geodatabase, the coverages shift 0.01mm since the geodatabase supports only 11 digits of precision, not double precision (16 digits). Line coverages, containing the polygon bounding attributes, accompany all polygons and are made available for editing and updating purposes. Census tracts are the only line coverages used to build polygons which carry attributes. Attribute data, kept in separate tables, was provided by US Census Bureau and the DC Office of Planning. In this case, street names were maintained at the request of the Office of Planning for ease of labeling. All DC GIS data is stored and exported in Maryland State Plane coordinates NAD 83 meters.
2001-08-06
GIS Data Coordinator
D.C. Office of the Chief Technology Officer
(202) 727-5660
200 I Street SE, 5th Floor
dcgis@dc.gov
10 am - 5 pm
Staff updated the dataset using the lastest layer from OP
2018-01-05T00:00:00
external
8dd16495474f6e821ebab63fff079c2c
D.C. Office of the Chief Technology Officer
GIS Data Coordinator
(202) 727-5660
200 I Street SE, 5th Floor
Washington
DC
20003
US
dcgis@dc.gov
8:30 am - 5 pm
True
GIS Data Coordinator
dataset
EPSG
4.5(3.0.1)
0
Simple
FALSE
0
TRUE
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Tract70Ply
Feature Class
0
OBJECTID
OBJECTID
OID
4
10
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
NHGISST
NHGISST
String
3
0
0
NHGISCTY
NHGISCTY
String
4
0
0
GISJOIN
GISJOIN
String
16
0
0
GISJOIN2
GISJOIN2
String
15
0
0
SQMI
Square Miles
Double
8
38
8
CENSUS_YEAR
Census Year
Double
8
38
8
STATE
State
String
255
0
0
TRACT_NUMBER
Tract Number
Double
8
38
8
TRACT_NAME
Tract Name
String
255
0
0
CY7001
Total Population
Double
8
38
8
C1U01
Age: Under 5 years
Double
8
38
8
C1U02
Age: 5 to 9 years
Double
8
38
8
C1U03
Age: 10 to 14 years
Double
8
38
8
C1U04
Age: 15 to 17 years
Double
8
38
8
C1U05
Age: 18 to 19 years
Double
8
38
8
C1U06
Age: 20
Double
8
38
8
C1U07
Age: 21
Double
8
38
8
C1U08
Age: 22-24
Double
8
38
8
C1U09
Age: 25-29
Double
8
38
8
C1U10
Age: 30-34
Double
8
38
8
C1U11
Age: 35-39
Double
8
38
8
C1U12
Age: 40-44
Double
8
38
8
C1U13
Age: 45-49
Double
8
38
8
C1U14
Age: 50-54
Double
8
38
8
C1U15
Age: 55-59
Double
8
38
8
C1U16
Age: 60-61
Double
8
38
8
C1U17
Age: 62-64
Double
8
38
8
C1U18
Age: 65-69
Double
8
38
8
C1U19
Age: 70-74
Double
8
38
8
C1U20
Age: 75 and over
Double
8
38
8
C1U21
Age: Under 18
Double
8
38
8
C1U22
Age: Percent under 18
Double
8
38
8
C1U23
Age: 60 and over
Double
8
38
8
C1U24
Age: Percent 60 and over
Double
8
38
8
C1U25
Age: 65 and over
Double
8
38
8
C1U26
Age: Percent 65 and over
Double
8
38
8
C1U27
Male
Double
8
38
8
C1U28
Percent Male
Double
8
38
8
C1U29
Female
Double
8
38
8
C1U30
Percent Female
Double
8
38
8
CEB01
White
Double
8
38
8
CEB02
Percent White
Double
8
38
8
CEB03
Black
Double
8
38
8
CEB04
Percent Black
Double
8
38
8
CEB05
Indian
Double
8
38
8
CEB06
Percent Indian
Double
8
38
8
CEB07
Japanese
Double
8
38
8
CEB08
Percent Japanese
Double
8
38
8
CEB09
Chinese
Double
8
38
8
CEB10
Percent Chinese
Double
8
38
8
CEB11
Filipino
Double
8
38
8
CEB12
Percent Filipino
Double
8
38
8
CEB13
Hawaiian
Double
8
38
8
CEB14
Percent Hawaiian
Double
8
38
8
CEB15
Korean
Double
8
38
8
CEB16
Percent Korean
Double
8
38
8
CEB17
Other
Double
8
38
8
CEB18
Percent Other
Double
8
38
8
CY9001
Spanish American
Double
8
38
8
CY9002
Percent Spanish American
Double
8
38
8
C1001
Native
Double
8
38
8
C1002
Foreign Born
Double
8
38
8
C1003
Percent foreign born
Double
8
38
8
CZQ001
Total Housing Units
Double
8
38
8
C0L001
Units in structure: 1 unit, detached
Double
8
38
8
C0L002
Units in structure: 1 unit, attached
Double
8
38
8
C0L003
Units in structure: 2 units
Double
8
38
8
C0L004
Units in structure: 3-4 units
Double
8
38
8
C0L005
Units in structure: 5-9 units
Double
8
38
8
C0L006
Units in structure: 10-19 units
Double
8
38
8
C0L007
Units in structure: 20-49 units
Double
8
38
8
C0L008
Units in structure: 50 units or more
Double
8
38
8
C0L009
Mobile home or trailer
Double
8
38
8
CE9001
Occupied housing units
Double
8
38
8
CFG001
Owner occupied
Double
8
38
8
CFG002
Renter occupied
Double
8
38
8
CE9002
Vacant units
Double
8
38
8
CE9003
Vacant year-round: For rent
Double
8
38
8
CE9004
Vacant year-round: For sale only
Double
8
38
8
CE9005
Vacant year-round: Rented or sold but not occupied
Double
8
38
8
CE9006
Vacant year-round: For occasional use
Double
8
38
8
CE9007
Vacant year-round: Other vacant
Double
8
38
8
CFD001
Occupants per unit: 1 person in unit
Double
8
38
8
CFD002
Occupants per unit: 2 persons in unit
Double
8
38
8
CFD003
Occupants per unit: 3 persons in unit
Double
8
38
8
CFD004
Occupants per unit: 4 persons in unit
Double
8
38
8
CFD005
Occupants per unit: 5 persons in unit
Double
8
38
8
CFD006
Occupants per unit: 6 persons in unit
Double
8
38
8
CFD007
Occupants per unit: 7 persons in unit
Double
8
38
8
CFD008
Occupants per unit: 8 persons in unit
Double
8
38
8
CFD009
Occupants per unit: 9 persons in unit
Double
8
38
8
CFD010
Average Household Size
Double
8
38
8
CEC01
Married-couple family
Double
8
38
8
CEC02
Male head of household
Double
8
38
8
CEC03
Female head of household
Double
8
38
8
CEC04
Presence of under 18
Double
8
38
8
CEC05
Percent of households with under 18 precent
Double
8
38
8
CEC06
Presence of 65 and over
Double
8
38
8
CEC07
Percent of households with 65 and over present
Double
8
38
8
CG7001
Home value: Less than $5000
Double
8
38
8
CG7002
Home value: $5000-$7499
Double
8
38
8
CG7003
Home value: $7500-$9999
Double
8
38
8
CG7004
Home value: $10000-$12499
Double
8
38
8
CG7005
Home value: $12500-$14999
Double
8
38
8
CG7006
Home value: $15000-$17499
Double
8
38
8
CG7007
Home value: $17500-$19999
Double
8
38
8
CG7008
Home value: $20000-$24999
Double
8
38
8
CG7009
Home value: $25000-$34999
Double
8
38
8
CG7010
Home value: $35000-$49999
Double
8
38
8
CG7011
Home value: $50000 or more
Double
8
38
8
CHA001
Paying cash rent: Less than $30
Double
8
38
8
CHA002
Paying cash rent: $30-$39
Double
8
38
8
CHA003
Paying cash rent: $40-$49
Double
8
38
8
CHA004
Paying cash rent: $50-$59
Double
8
38
8
CHA005
Paying cash rent: $60-$69
Double
8
38
8
CHA006
Paying cash rent: $70-$79
Double
8
38
8
CHA007
Paying cash rent: $80-$89
Double
8
38
8
CHA008
Paying cash rent: $90-$99
Double
8
38
8
CHA009
Paying cash rent: $100-$119
Double
8
38
8
CHA010
Paying cash rent: $120-$149
Double
8
38
8
CHA011
Paying cash rent: $150-$199
Double
8
38
8
CHA012
Paying cash rent: $200-$249
Double
8
38
8
CHA013
Paying cash rent: $250-$299
Double
8
38
8
CHA014
Paying cash rent: $300 or more
Double
8
38
8
CHA015
No payment of cash rent
Double
8
38
8
C2001
Group Quarters population
Double
8
38
8
C2I01
School enrollment: Persons 3 years and over enrolled in school
Double
8
38
8
C2I02
School enrollment: Nursery School
Double
8
38
8
C2I03
School enrollment: Kindergarten
Double
8
38
8
C2I04
School enrollment: Elementary
Double
8
38
8
C2I05
School enrollment: High School
Double
8
38
8
C2I06
School enrollment: College
Double
8
38
8
C2M01
Population 25 years and over
Double
8
38
8
C2M02
Educational attainment: No school years completed (includes nursery and kindergarten)
Double
8
38
8
C2M03
Educational attainment: Elementary: 1-4 years
Double
8
38
8
C2M04
Educational attainment: Elementary: 5-6 years
Double
8
38
8
C2M05
Educational attainment: Elementary: 7 years
Double
8
38
8
C2M06
Educational attainment: Elementary: 8 years
Double
8
38
8
C2M07
Educational attainment: High school: 1-3 years
Double
8
38
8
C2M08
Educational attainment: High school: 4 years
Double
8
38
8
C2M09
Educational attainment: College: 1-3 years
Double
8
38
8
C2M10
Educational attainment: College: 4
Double
8
38
8
C2M11
Educational attainment: College: 5 years or more
Double
8
38
8
C07001
In armed forces
Double
8
38
8
C07002
In civilian labor force: Employed
Double
8
38
8
C07003
In civilian labor force: Unemployed
Double
8
38
8
C07004
Percent Unemployed
Double
8
38
8
C07005
Not in labor force
Double
8
38
8
C27001
Occupation: Professional, technical or kindred workers
Double
8
38
8
C27002
Occupation: Managers and administrators
Double
8
38
8
C27003
Occupation: Sales workers
Double
8
38
8
C27004
Occupation: Clerical and kindred workers
Double
8
38
8
C27005
Occupation: Craftsmen, foremen, and kindred workers
Double
8
38
8
C27006
Occupation: Operatives and kindred workers, including mine
Double
8
38
8
C27007
Occupation: Transport equipment operatives
Double
8
38
8
C27008
Occupation: Laborers except farm and mine
Double
8
38
8
C27009
Occupation: Farm managers, farm laborers and foremen
Double
8
38
8
C27010
Occupation: Service workers, except private household
Double
8
38
8
C27011
Occupation: Private household workers
Double
8
38
8
C3B001
Industry: Agriculture, forestry and fisheries
Double
8
38
8
C3B002
Industry: Mining
Double
8
38
8
C3B003
Industry: Construction
Double
8
38
8
C3B004
Industry: Furniture and lumber and wood products
Double
8
38
8
C3B005
Industry: Primary metal industries
Double
8
38
8
C3B006
Industry: Fabricated metal industries (including not specified metals)
Double
8
38
8
C3B007
Industry: Machinery, except electrical
Double
8
38
8
C3B008
Industry: Electrical machinery, equipment and supplies
Double
8
38
8
C3B009
Industry: Motor vehicles and other transportation equipment
Double
8
38
8
C3B010
Industry: Other durable goods
Double
8
38
8
C3B011
Industry: Food and kindred products
Double
8
38
8
C3B012
Industry: Textile mill and other fabricated textile products
Double
8
38
8
C3B013
Industry: Printing, publishing, and allied industries
Double
8
38
8
C3B014
Industry: Chemical and allied products
Double
8
38
8
C3B015
Industry: Other nondurable goods (including specified manufacturing industries)
Double
8
38
8
C3B016
Industry: Railroads and railway express service
Double
8
38
8
C3B017
Industry: Trucking service and warehousing
Double
8
38
8
C3B018
Industry: Other transportation
Double
8
38
8
C3B019
Industry: Communications
Double
8
38
8
C3B020
Industry: Utilities and sanitary services
Double
8
38
8
C3B021
Industry: Wholesale trade
Double
8
38
8
C3B022
Industry: Food, bakery, and dairy store
Double
8
38
8
C3B023
Industry: Eating and drinking places
Double
8
38
8
C3B024
Industry: General merchandise retailing
Double
8
38
8
C3B025
Industry: Motor vehicle retailing and service stations
Double
8
38
8
C3B026
Industry: Other retail trade
Double
8
38
8
C3B027
Industry: Banking and credit agencies
Double
8
38
8
C3B028
Industry: Insurance, real estate and other finance
Double
8
38
8
C3B029
Industry: Business services
Double
8
38
8
C3B030
Industry: Repair services
Double
8
38
8
C3B031
Industry: Private households
Double
8
38
8
C3B032
Industry: Other personal services
Double
8
38
8
C3B033
Industry: Entertainment and recreation services
Double
8
38
8
C3B034
Industry: Hospitals
Double
8
38
8
C3B035
Industry: Medical and other health services except hospitals
Double
8
38
8
C3B036
Industry: Elementary and secondary schools and college: Government
Double
8
38
8
C3B037
Industry: Elementary and secondary schools and college: Private
Double
8
38
8
C3B038
Industry: Other education and kindred services
Double
8
38
8
C3B039
Industry: Welfare, religious, and nonprofit membership organizations
Double
8
38
8
C3B040
Industry: Legal, engineering, and miscellaneous professional services
Double
8
38
8
C3B041
Industry: Public administration
Double
8
38
8
C2G001
Commuting to work: Private auto, driver
Double
8
38
8
C2G002
Commuting to work: Private auto, passenger
Double
8
38
8
C2G003
Commuting to work: Bus or streetcar
Double
8
38
8
C2G004
Commuting to work: Subway or elevated
Double
8
38
8
C2G005
Commuting to work: Railroad
Double
8
38
8
C2G006
Commuting to work: Taxicab
Double
8
38
8
C2G007
Commuting to work: Walked only
Double
8
38
8
C2G008
Commuting to work: Other means
Double
8
38
8
C2G009
Commuting to work: Worked at home
Double
8
38
8
C21001
Disability status: persons 16 to 64 years of age not inmates and not attending school
Double
8
38
8
C21002
Disability status: disabled
Double
8
38
8
C2H001
Veterans Status: Civialian Males 16 Years and Over
Double
8
38
8
C2H002
Veterans status: Veterans
Double
8
38
8
CRZ001
Vehicles at home: None
Double
8
38
8
CRZ002
Vehicles at home: 1 automobile
Double
8
38
8
CRZ003
Vehicles at home: 2 automobiles
Double
8
38
8
CRZ004
Vehicles at home: 3 automobiles or more
Double
8
38
8
C3T001
Family income: Under $1000 (includes $1-$999, none, and loss)
Double
8
38
8
C3T002
Family income: $1000-$1999
Double
8
38
8
C3T003
Family income: $2000-$2999
Double
8
38
8
C3T004
Family income: $3000-$3999
Double
8
38
8
C3T005
Family income: $4000-$4999
Double
8
38
8
C3T006
Family income: $5000-$5999
Double
8
38
8
C3T007
Family income: $6000-$6999
Double
8
38
8
C3T008
Family income: $7000-$7999
Double
8
38
8
C3T009
Family income: $8000-$8999
Double
8
38
8
C3T010
Family income: $9000-$9999
Double
8
38
8
C3T011
Family income: $10000-$11999
Double
8
38
8
C3T012
Family income: $12000-$14999
Double
8
38
8
C3T013
Family income: $15000-$24999
Double
8
38
8
C3T014
Family income: $25000-$49999
Double
8
38
8
C3T015
Family income: $50000 and over
Double
8
38
8
C36001
Poverty: Aggregate number of persons in families below poverty level
Double
8
38
8
C36002
Poverty: Unrelated individuals below poverty
Double
8
38
8
C36003
Poverty: Total persons below poverty
Double
8
38
8
C36004
Poverty: Persons below poverty: Under 18
Double
8
38
8
C3501
Poverty: Total families for whom poverty status was determined
Double
8
38
8
C35001
Poverty: Families below poverty level
Double
8
38
8
SHAPE
SHAPE
Geometry
4
0
0
Feature geometry.
Esri
Coordinates defining the features.
SE_ANNO_CAD_DATA
SE_ANNO_CAD_DATA
Blob
0
0
0
GIS_ID
GIS_ID
String
50
0
0
OCTO GIS sequential identifier
OCTO
CREATOR
CREATOR
String
255
0
0
A user who created a record.
OCTO
CREATED
CREATED
Date
8
0
0
The dates a record were created
OCTO
EDITOR
EDITOR
String
255
0
0
A user who last edited a record.
OCTO
EDITED
EDITED
Date
8
0
0
The dates a record were last edited.
OCTO
SHAPE.AREA
SHAPE.AREA
Double
0
0
0
SHAPE.LEN
SHAPE.LEN
Double
0
0
0