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This is a copy of the statewide Census Tract GIS Tiger file. It is used to determine if a census tract (CT) is EDA or not by adding ACS (American Community Survey) Median Household Income (MHI) and Population Density data at the CT level.
The associated data are considered DWR enterprise GIS data, which meet all appropriate requirements of the DWR Spatial Data Standards, specifically the DWR Spatial Data Standard version 3.1, dated September 11, 2019. This data set was not produced by DWR. Data were originally developed and supplied by US Bureau of Census. DWR makes no warranties or guarantees - either expressed or implied - as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data. Comments, problems, improvements, updates, or suggestions should be forwarded to GIS@water.ca.gov.
The information included in this dataset is For Official Use Only (FOUO) and should be handled as sensitive information not to be disclosed. This dataset should be safeguarded, handled, transmitted, and stored in accordance with appropriate security directives. No use, reproduction, or disclosure is authorized without the express written permission of the California Department of Water Resources. Unauthorized release may result in criminal and administrative penalties. |
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This is a copy of the statewide Census Tract GIS Tiger file. It is used to determine if a census tract (CT) is EDA or not by adding ACS (American Community Survey) Median Household Income (MHI) and Population Density data at the CT level.
The associated data are considered DWR enterprise GIS data, which meet all appropriate requirements of the DWR Spatial Data Standards, specifically the DWR Spatial Data Standard version 3.1, dated September 11, 2019. This data set was not produced by DWR. Data were originally developed and supplied by US Bureau of Census. DWR makes no warranties or guarantees - either expressed or implied - as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data. Comments, problems, improvements, updates, or suggestions should be forwarded to GIS@water.ca.gov.
The information included in this dataset is For Official Use Only (FOUO) and should be handled as sensitive information not to be disclosed. This dataset should be safeguarded, handled, transmitted, and stored in accordance with appropriate security directives. No use, reproduction, or disclosure is authorized without the express written permission of the California Department of Water Resources. Unauthorized release may result in criminal and administrative penalties. |
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U.S. Census Bureau |
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5000 |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This is a copy of the statewide Census Tract GIS Tiger file. It is used to determine if a census tract (CT) is EDA or not by adding ACS (American Community Survey) Median Household Income (MHI) and Population Density data at the CT level. The IRWM web based DAC mapping tool uses this GIS layer. Every year this table gets updated after ACS publishes their updated estimates. Created by joining 2018 EDA table to 2010 Census Tracts feature class. The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line File is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Census tracts are small, relatively permanent statistical subdivisions of a county or equivalent entity, and were defined by local participants as part of the 2010 Census Participant Statistical Areas Program. The Census Bureau delineated the census tracts in situations where no local participant existed or where all the potential participants declined to participate. The primary purpose of census tracts is to provide a stable set of geographic units for the presentation of census data and comparison back to previous decennial censuses. Census tracts generally have a population size between 1,200 and 8,000 people, with an optimum size of 4,000 people. When first delineated, census tracts were designed to be homogeneous with respect to population characteristics, economic status, and living conditions. The spatial size of census tracts varies widely depending on the density of settlement. Physical changes in street patterns caused by highway construction, new development, and so forth, may require boundary revisions. In addition, census tracts occasionally are split due to population growth, or combined as a result of substantial population decline. Census tract boundaries generally follow visible and identifiable features. They may follow legal boundaries such as minor civil division (MCD) or incorporated place boundaries in some States and situations to allow for census tract-to-governmental unit relationships where the governmental boundaries tend to remain unchanged between censuses. State and county boundaries always are census tract boundaries in the standard census geographic hierarchy. In a few rare instances, a census tract may consist of noncontiguous areas. These noncontiguous areas may occur where the census tracts are coextensive with all or parts of legal entities that are themselves noncontiguous. For the 2010 Census, the census tract code range of 9400 through 9499 was enforced for census tracts that include a majority American Indian population according to Census 2000 data and/or their area was primarily covered by federally recognized American Indian reservations and/or off-reservation trust lands; the code range 9800 through 9899 was enforced for those census tracts that contained little or no population and represented a relatively large special land use area such as a National Park, military installation, or a business/industrial park; and the code range 9900 through 9998 was enforced for those census tracts that contained only water area, no land area.</SPAN></P></DIV></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The original source projection of the DWR GIS atlas dataset was NAD83. For copies of data in original projection, please contact DWR directly.</SPAN></P></DIV></DIV></DIV> |
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i16_Census_Tract_EconomicallyDistressedAreas_2018 |
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["boundaries","tract boundary","tracts","California tracts","California","2018","Census","Communities","Economically Distressed","DWR GIS Atlas","Society"] |
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en-US |
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150000000 |
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