U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Cartographic Products and Services Branch
201703
Unified_School_District_20161
vector digital data
Cartographic Boundary Files
2016
https://www2.census.gov/geo/tiger/GENZ2016/shp/cb_2016_06_unsd_500k.zip
The 2016 cartographic boundary shapefiles are simplified representations of selected geographic areas from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). These boundary files are specifically designed for small-scale thematic mapping. When possible, generalization is performed with the intent to maintain the hierarchical relationships among geographies and to maintain the alignment of geographies within a file set for a given year. Geographic areas may not align with the same areas from another year. Some geographies are available as nation-based files while others are available only as state-based files. School Districts are single-purpose administrative units within which local officials provide public educational services for the area's residents. The Census Bureau obtains the boundaries, names, local education agency codes, grade ranges, and school district levels for school districts from state officials for the primary purpose of providing the U.S. Department of Education with estimates of the number of children in poverty within each school district. This information serves as the basis for the Department of Education to determine the annual allocation of Title I funding to states and school districts. The cartographic boundary files include separate files for elementary, secondary and unified school districts. The generalized school district boundaries in this file are based on those in effect for the 2015-2016 school year, i.e., in operation as of January 1, 2016.
These files were specifically created to support small-scale thematic mapping. To improve the appearance of shapes at small scales, areas are represented with fewer vertices than detailed TIGER/Line Shapefiles. Cartographic boundary files take up less disk space than their ungeneralized counterparts. Cartographic boundary files take less time to render on screen than TIGER/Line Shapefiles. You can join this file with table data downloaded from American FactFinder by using the AFFGEOID field in the cartographic boundary file. If detailed boundaries are required, please use the TIGER/Line Shapefiles instead of the generalized cartographic boundary files.
201703
201703
publication date
None planned. No changes or updates will be made to this version of the cartographic boundary files. New versions of the cartographic boundary files will be produced on an annual release schedule. Types of geography released may vary from year to year.
-124.409591
-114.131211
42.009518
32.534156
ISO 19115 Topic Categories
Boundaries
None
2016
SHP
Cartographic Boundary
Generalized
School District
State
Unified School District
National Standard Codes (ANSI INCITS 38-2009), Federal Information Processing Series (FIPS) - States/State Equivalents
California
CA
None
The intended display scale for this file is 1:500,000. This file should not be displayed at scales larger than 1:500,000.
These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source. The boundary information is for visual display at appropriate small scales only. Cartographic boundary files should not be used for geographic analysis including area or perimeter calculation. Files should not be used for geocoding addresses. Files should not be used for determining precise geographic area relationships.
U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Customer Services Branch
mailing
4600 Silver Hill Road
Washington
DC
20233-7400
United States
301.763.1128
301.763.4710
geo.geography@census.gov
Accurate against American National Standards Institute (ANSI) Publication INCITS 446-2008 (Geographic Names Information System (GNIS)) at the 100% level for the codes and base names present in the file. The remaining attribute information has been examined but has not been fully tested for accuracy.
The Census Bureau performed automated tests to ensure logical consistency of the source database. Segments making up the outer and inner boundaries of a polygon tie end-to-end to completely enclose the area. All polygons were tested for closure. The Census Bureau uses its internally developed geographic update system to enhance and modify spatial and attribute data in the Census MAF/TIGER database. Standard geographic codes, such as INCITS (formerly FIPS) codes for states, counties, municipalities, county subdivisions, places, American Indian/Alaska Native/Native Hawaiian areas, and congressional districts are used when encoding spatial entities. The Census Bureau performed spatial data tests for logical consistency of the codes during the compilation of the original Census MAF/TIGER database files. Feature attribute information has been examined but has not been fully tested for consistency.
For the cartographic boundary files, the Point and Vector Object Count for the G-polygon SDTS Point and Vector Object Type reflects the number of records in the file's data table. For multi-polygon features, only one attribute record exists for each multi-polygon rather than one attribute record per individual G-polygon component of the multi-polygon feature. Cartographic Boundary File multi-polygons are an exception to the G-polygon object type classification. Therefore, when multi-polygons exist in a file, the object count will be less than the actual number of G-polygons.
The cartographic boundary files are generalized representations of extracts taken from the MAF/TIGER Database. Generalized boundary files are clipped to a simplified version of the U.S. outline. As a result, some off-shore areas may be excluded from the generalized files. Some small geographic areas, holes, or discontiguous parts of areas may not be included in generalized files if they are not visible at the target scale.
Data are not accurate. Data are generalized representations of geographic boundaries at 1:500,000.
U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Customer Services Branch
Unpublished material
Census MAF/TIGER database
Geo-spatial Relational Database
201506
201605
The dates describe the effective date of 2016 cartographic boundaries.
MAF/TIGER
All spatial and feature data
Spatial data were extracted from the MAF/TIGER database and processed through a U.S. Census Bureau batch generalization system.
withheld
201703
INCITS (formerly FIPS) codes
Vector
Simple
FALSE
7
TRUE
FALSE
North American Datum of 1983
Geodetic Reference System 80
6378137.000000
298.257222
cb_2016_06_unsd_500k.shp
Current Unified School Districts (state-based)
U.S. Census Bureau
Feature Class
7
OBJECTID
OBJECTID
OID
4
10
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
Shape
Geometry
4
0
0
Feature geometry.
Esri
Coordinates defining the features.
STATEFP
Current state Federal Information Processing Series (FIPS) code
U.S. Census Bureau
National Standard Codes (ANSI INCITS 38-2009), Federal Information Processing Series (FIPS) - States/State Equivalents
U.S. Census Bureau
STATEFP
String
2
0
0
UNSDLEA
Current unified school district local education agency code. A code of 99997 indicates a school district that has not been defined.
U.S. Census Bureau
00001
99997
UNSDLEA
String
5
0
0
AFFGEOID
American FactFinder summary level code + geovariant code + '00US' + GEOID
U.S. Census Bureau
American FactFinder geographic identifier
U.S. Census Bureau
AFFGEOID
String
16
0
0
GEOID
School district identifier; a concatenation of the current state Federal Information Processing Series (FIPS) code and unified school district local education agency code
U.S. Census Bureau
The GEOID attribute is a concatenation of the state FIPS code followed by the unified school district local education agency code. No spaces are allowed between the two codes. The State FIPS code is taken from "National Standard Codes (ANSI INCITS 38-2009), Federal Information Processing Series (FIPS) - States". The unified school district local education agency code is taken from the "UNSDLEA" attribute.
GEOID
String
7
0
0
NAME
Current unified school district name
U.S. Census Bureau
Values for this attribute are composed of a set of unified school district names. As such, they do not exist in a known, predefined set.
NAME
String
100
0
0
LSAD
Current legal/statistical area description code for unified school district
U.S. Census Bureau
00
Blank
U.S. Census Bureau
LSAD
String
2
0
0
ALAND
Current land area (square meters)
U.S. Census Bureau
0
9,999,999,999,999
square meters
ALAND
Double
8
38
8
AWATER
Current water area (square meters)
U.S. Census Bureau
0
9,999,999,999,999
square meters
AWATER
Double
8
38
8
Shape.STArea()
Shape.STArea()
Double
0
0
0
Shape.STLength()
Shape.STLength()
Double
0
0
0
U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Customer Services Branch
mailing
4600 Silver Hill Road
Washington
DC
20233-7400
United States
301.763.1128
301.763.4710
geo.geography@census.gov
No warranty, expressed or implied is made with regard to the accuracy of these data, and no liability is assumed by the U.S. Government in general or the U.S. Census Bureau in specific as to the spatial or attribute accuracy of the data. The act of distribution shall not constitute any such warranty and no responsibility is assumed by the U.S. government in the use of these files. The boundary information is for small-scale mapping purposes only; boundary depiction and designation for small-scale mapping purposes do not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions.
SHP
PK-ZIP, version 1.93A or higher
https://www2.census.gov/geo/tiger/GENZ2016/shp/cb_2016_06_unsd_500k.zip
The online cartographic boundary files may be downloaded without charge.
To obtain more information about ordering Cartographic Boundary Files visit https://www.census.gov/geo/www/tiger.
The cartographic boundary files contain geographic data only and do not include display mapping software or statistical data. For information on how to use cartographic boundary file data with specific software package users shall contact the company that produced the software.
201703
U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Customer Services Branch
mailing
4600 Silver Hill Road
Washington
DC
20233-7400
United States
301.763.1128
301.763.4710
geo.geography@census.gov
Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
20180301
15223600
1.0
FALSE
Tahoe_Census_Unified_School_District
002
661630.105232
828437.068171
4247431.000883
4655672.112375
1
Projected
GCS_North_American_1983
Linear Unit: Meter (1.000000)
NAD_1983_UTM_Zone_10N
<ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.6'><WKT>PROJCS["NAD_1983_UTM_Zone_10N",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-123.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",26910]]</WKT><XOrigin>-5120900</XOrigin><YOrigin>-9998100</YOrigin><XYScale>10000.001646282679</XYScale><ZOrigin>0</ZOrigin><ZScale>1</ZScale><MOrigin>0</MOrigin><MScale>1</MScale><XYTolerance>0.0010000001639127731</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>2</MTolerance><HighPrecision>true</HighPrecision><WKID>26910</WKID><LatestWKID>26910</LatestWKID></ProjectedCoordinateSystem>
20180417
16160600
20230922
10003800
150000000
5000
ItemDescription
Version 6.2 (Build 9200) ; Esri ArcGIS 10.6.0.8321
Census Unified School District
1
-121.150037
-119.035506
42.036488
38.314864
Raw Census Data: These files were specifically created to support small-scale thematic mapping. To improve the appearance of shapes at small scales, areas are represented with fewer vertices than detailed TIGER/Line Shapefiles. Cartographic boundary files take up less disk space than their ungeneralized counterparts. Cartographic boundary files take less time to render on screen than TIGER/Line Shapefiles. You can join this file with table data downloaded from American FactFinder by using the AFFGEOID field in the cartographic boundary file. If detailed boundaries are required, please use the TIGER/Line Shapefiles instead of the generalized cartographic boundary files.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The 2016 cartographic boundary shapefiles are simplified representations of selected geographic areas from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). These boundary files are specifically designed for small-scale thematic mapping. When possible, generalization is performed with the intent to maintain the hierarchical relationships among geographies and to maintain the alignment of geographies within a file set for a given year. Geographic areas may not align with the same areas from another year. Some geographies are available as nation-based files while others are available only as state-based files. School Districts are single-purpose administrative units within which local officials provide public educational services for the area's residents. The Census Bureau obtains the boundaries, names, local education agency codes, grade ranges, and school district levels for school districts from state officials for the primary purpose of providing the U.S. Department of Education with estimates of the number of children in poverty within each school district. This information serves as the basis for the Department of Education to determine the annual allocation of Title I funding to states and school districts. The cartographic boundary files include separate files for elementary, secondary and unified school districts. The generalized school district boundaries in this file are based on those in effect for the 2015-2016 school year, i.e., in operation as of January 1, 2016.</SPAN></P></DIV></DIV></DIV>
Data source can be found at: https://www.census.gov/geo/maps-data/data/cbf/cbf_sd.html
Boundaries
2016
SHP
Cartographic Boundary
Generalized
School District
State
Unified School District
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The intended display scale for this file is 1:500,000. This file should not be displayed at scales larger than 1:500,000. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source. The boundary information is for visual display at appropriate small scales only. Cartographic boundary files should not be used for geographic analysis including area or perimeter calculation. Files should not be used for geocoding addresses. Files should not be used for determining precise geographic area relationships.</SPAN></P></DIV></DIV></DIV>
Feature Class
dataset
EPSG
7.8.2(3.0.1)
7
20230922
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