20211129 09262700 1.0 FGDC CSDGM Metadata FALSE BND_TRCT_2020 002 6096181.634208 6461636.062746 1788690.626677 2074093.442681 1 Projected GCS_North_American_1983 Linear Unit: Foot_US (0.304801) NAD_1983_StatePlane_California_II_FIPS_0402_Feet <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/10.7'><WKT>PROJCS["NAD_1983_StatePlane_California_II_FIPS_0402_Feet",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["Lambert_Conformal_Conic"],PARAMETER["False_Easting",6561666.666666666],PARAMETER["False_Northing",1640416.666666667],PARAMETER["Central_Meridian",-122.0],PARAMETER["Standard_Parallel_1",38.33333333333334],PARAMETER["Standard_Parallel_2",39.83333333333334],PARAMETER["Latitude_Of_Origin",37.66666666666666],UNIT["Foot_US",0.3048006096012192],AUTHORITY["EPSG",2226]]</WKT><XOrigin>-115211800</XOrigin><YOrigin>-93821500</YOrigin><XYScale>36983428.057351544</XYScale><ZOrigin>0</ZOrigin><ZScale>1</ZScale><MOrigin>0</MOrigin><MScale>1</MScale><XYTolerance>0.0032808333333333331</XYTolerance><ZTolerance>2</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102642</WKID><LatestWKID>2226</LatestWKID></ProjectedCoordinateSystem> 20211129 10131100 20211129 10132600 625000 5000 FGDC Version 6.2 (Build 9200) ; Esri ArcGIS 10.7.1.11595 US Census Tracts 2020 2021-02-26T00:00:00 external e6d0e5629ac98b876403ad0af84f64b7 U.S. Census Bureau Spatial Data Collection and Products Branch Geography Division 4600 Silver Hill Rd Washington DC 20233-7400 geo.geography@census.gov US (301)763-1128 True U.S. Census Bureau 1 -123.634515 -122.347454 38.856934 38.062416 County of Sonoma 2021-02-26T00:00:00 <DIV STYLE="text-align:Left;"><DIV><DIV>Census tracts are small and relatively permanent statistical subdivisions of a county or equivalent entity. Local participants review and update census tracts prior to each decennial census as part of the Census Bureau’s PSAP. The Census Bureau updates census tracts in situations where no local participant existed or where local or tribal governments declined to participate. The primary purpose of census tracts is to provide a stable set of geographic units for the presentation of decennial census data.Census tracts generally have a population size of 1,200 to 8,000 people with an optimum size of 4,000 people. The spatial size of census tracts varies widely depending on the density of settlement. Ideally, census tract boundaries remain stable over time to facilitate statistical comparisons from census to census. However, physical changes in street patterns caused by highway construction, new development, and so forth, may require boundary revisions. In addition, significant changes in population may result in splitting or combining census tracts.Census tract boundaries generally follow visible and identifiable features. Census tract boundaries may follow legal boundaries (e.g., MCD or incorporated place boundaries in some states 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.Census Tract Codes and Numbers—Census tract numbers have up to a 4-character basic number and may have an optional 2-character suffix: For example: 1457.02The census tract numbers (used as names) eliminate any leading zeroes and append a suffix only if required. The 6-digit census tract codes, however, include leading zeroes and have an implied decimal point for the suffix. Census tract codes (000100 to 998999) are unique within a county or equivalent area.The Census Bureau assigned a census tract code of 9900 to represent census tracts delineated to cover large bodies of water. In addition, census tract codes in the 9400s represent American Indian Areas and codes in the 9800s represent special land use areas.The Census Bureau uses suffixes to help identify census tract changes for comparison purposes. Local participants have an opportunity to review the existing census tracts before each census. If local participants split a census tract, the split parts usually retain the basic number, but receive different suffixes. In a few counties, local participants request major changes to, and renumbering of, the census tracts. Changes to individual census tract boundaries usually do not result in census tract numbering changes.Relationship to Other Geographic Entities—Within the standard census geographic hierarchy, census tracts never cross state or county boundaries, but may cross the boundaries of county subdivisions, places, urban areas, voting districts, congressional districts, and AIANNH areas.Census Tract Numbers and Codes:• 000100 to 939999 - Basic number range for census tracts• 940000 to 949999 - American Indian Areas• 950000 to 979999 - Basic number range for census tracts• 980000 to 989999 - Special land use areas• 990000 to 990099 - Basic number range for census tracts in water areas• 990100 to 998900 - Basic number range for census tracts</DIV></DIV></DIV> 'US Census Tracts 2020' primary purpose is to provide a stable set of geographic units for the presentation of statistical data. Some statisitcal data is only provided at the tract level. 2021 TIGER - Line Shapefiles 2021 TIGER - Line Shapefiles Technical Documentation Prepared by the US Census Bureau, 2021 Census Tracts 2020 Sonoma County Demographic Population. external e6d0e5629ac98b876403ad0af84f64b7 U.S. Census Bureau Spatial Data Collection and Products Branch Geography Division 4600 Silver Hill Rd Washington DC 20233-7400 geo.geography@census.gov US (301)763-1128 True U.S. Census Bureau Every 10 years <DIV STYLE="text-align:Left;"><DIV><DIV>TIGER/Line Shapefile Legal Disclaimers No warranty, expressed or implied, is made with regard to the accuracy of the data in the TIGER/Line Shapefiles, and no liability is assumed by the United States Government in general, or the Census Bureau specifically, as to the positional or attribute accuracy of the data. The boundary information in the TIGER/Line Shapefiles is for statistical data collection and tabulation purposes only. Their depiction and designation for statistical purposes does not constitute a determination of jurisdictional authority or rights of ownership or entitlement and are not legal land descriptions. TIGER/Line® is a registered trademark of the Census Bureau. TIGER/Line cannot be used as or within the proprietary product names of any commercial product including or otherwise relevant to Census Bureau data and may only be used to refer to the nature of such a product. The Census Bureau requests that any repackaging of the TIGER/Line Shapefile data, documentation, and other files accompanying it for distribution include a conspicuously placed statement to this effect on the product's cover, the first page of the website, or elsewhere of comparable visibility. Further, Census Bureau trademarks, when used in reference to the nature of the product, should be accompanied by the ® (registered) symbol or ™ symbol, where convenient.Citation Information Copyright protection is not available for any work of the United States Government (Title 17 U.S.C., Section 105). Thus, you are free to reproduce census materials as you see fit. We would ask, however, that you cite the Census Bureau as the source.Contact Information Members of the public can obtain the TIGER/Line Shapefiles free of charge through the Census Bureau’s website and should direct questions about these files to the Spatial Data Collection and Products Branch, Geography Division, U.S. Census Bureau. If you obtain the TIGER/Line Shapefiles from a third party, we recommend you contact that vendor for assistance. Spatial Data Collection and Products Branch Geography Division, U.S. Census Bureau 4600 Silver Hill Road Washington, DC 20233-7400 Office: (301) 763-1128 E-mail: geo.geography@census.gov</DIV></DIV></DIV> ESRI Shapefile dataset EPSG 5.3(9.0.0) 122 Simple FALSE 122 TRUE FALSE BND_TRCT_2020 Feature Class 122 GEOID GEOID String 11 0 0 Standard geographic identifier (GEOID) for each entity that links to the GEOID in the data from censuses and surveys. TIGER-Line ShapfilesTechnical Documentation. NAMELSAD NAMELSAD String 20 0 0 Current translated legal/statistical area descriptioin and the Census Tract number. TIGER-Line ShapfilesTechnical Documentation. ALAND ALAND Double 8 38 8 Current land area TIGER-Line ShapfilesTechnical Documentation. AWATER AWATER Double 8 38 8 Current water area TIGER-Line ShapfilesTechnical Documentation. INTPTLAT INTPTLAT String 11 0 0 Current latitude of the internal point TIGER-Line ShapfilesTechnical Documentation. INTPTLON INTPTLON String 12 0 0 Current longitude of the internal point. TIGER-Line ShapfilesTechnical Documentation. 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. 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