20250303 18005800 1.0 FALSE CensusTracts_FederalWorkersData 002 985206.307492 1507932.636709 135385.559535 748200.265989 1 Projected GCS_North_American_1983 Linear Unit: Foot_US (0.304801) <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/3.4.0'><WKT>PROJCS[&quot;NAD_1983_StatePlane_Maryland_FIPS_1900_Feet&quot;,GEOGCS[&quot;GCS_North_American_1983&quot;,DATUM[&quot;D_North_American_1983&quot;,SPHEROID[&quot;GRS_1980&quot;,6378137.0,298.257222101]],PRIMEM[&quot;Greenwich&quot;,0.0],UNIT[&quot;Degree&quot;,0.0174532925199433]],PROJECTION[&quot;Lambert_Conformal_Conic&quot;],PARAMETER[&quot;False_Easting&quot;,1312333.333333333],PARAMETER[&quot;False_Northing&quot;,0.0],PARAMETER[&quot;Central_Meridian&quot;,-77.0],PARAMETER[&quot;Standard_Parallel_1&quot;,38.3],PARAMETER[&quot;Standard_Parallel_2&quot;,39.45],PARAMETER[&quot;Latitude_Of_Origin&quot;,37.66666666666666],UNIT[&quot;Foot_US&quot;,0.3048006096012192],AUTHORITY[&quot;EPSG&quot;,2248]]</WKT><XOrigin>-120561100</XOrigin><YOrigin>-95444400</YOrigin><XYScale>3048.0060960121928</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.0032808333333333331</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102685</WKID><LatestWKID>2248</LatestWKID></ProjectedCoordinateSystem> NAD_1983_StatePlane_Maryland_FIPS_1900_Feet 20250227 14433400 20250227 14433400 150000000 5000 ItemDescription Esri ArcGIS 13.4.0.55405 Census Tracts - TPB Modeled Area (2020) 0.000000 0.000000 1 -78.162781 -76.304713 39.720993 38.032822 Downloaded 2020 TIGER files for Census Tract shapefiles for the states of DE,MD,PA,VA,WV, and DC from the Census website. Merged the Block Group files together, then clipped to TPB Modeled Region. <DIV STYLE="text-align:Left;"><P STYLE="margin:0 0 11 0;"><SPAN><SPAN>Census tracts are small, relatively permanent statistical subdivisions of a county or equivalent entity and are reviewed and updated by local participants 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.</SPAN></SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN><SPAN>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. </SPAN></SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN>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.</SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN><SPAN>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: </SPAN></SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN><SPAN>For example: 1457.02 </SPAN></SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN><SPAN>The 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. </SPAN></SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN><SPAN>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. </SPAN></SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN><SPAN>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.</SPAN></SPAN></P></DIV> The file was created from Census 2020 TIGER Files The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. 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 in the TIGER/Line Shapefiles are 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 they are not legal land descriptions. Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest. NGDA Governmental Units and Administrative and Statistical Boundaries Theme National Geospatial Data Asset Nation Polygon County Borough Parish Municipality Boundaries TPB MWCOG <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This file may be available to interested parties through an official COG data request. For more information, contact a member of the GIS team. </SPAN></P></DIV></DIV></DIV> File Geodatabase Feature Class dataset EPSG 5.3(9.0.0) 0 Simple FALSE 0 TRUE TRUE CensusTracts_FederalWorkersData Feature Class 0 OBJECTID OBJECTID OID 4 0 0 Internal feature number. Esri Sequential unique whole numbers that are automatically generated. Shape Shape Geometry 0 0 0 Feature geometry. Esri Coordinates defining the features. STATEFP STATEFP String 2 0 0 COUNTYFP COUNTYFP String 3 0 0 TRACTCE TRACTCE String 6 0 0 GEOID GEOID String 11 0 0 NAME NAME String 7 0 0 NAMELSAD NAMELSAD String 20 0 0 MTFCC MTFCC String 5 0 0 FUNCSTAT FUNCSTAT String 1 0 0 ALAND ALAND Double 8 0 0 AWATER AWATER Double 8 0 0 INTPTLAT INTPTLAT String 11 0 0 INTPTLON INTPTLON String 12 0 0 OBJECTID_1 ObjectID Integer 4 0 0 Name_1 Name String 255 0 0 total_workers Full-time, year-round civilian employed population 16 years and over Integer 4 0 0 private_forprof_workers_total Total Private for-profit wage and salary workers Integer 4 0 0 emp_private_comp_workers_total Total employee of private company workers Integer 4 0 0 private_selfemp_incorpor_busine Total self-employed in own incorporated business workers Integer 4 0 0 private_nonprof_workers_total Total private not-for-profit wage and salary workers Integer 4 0 0 local_gov_workers_total Total local government workers Integer 4 0 0 state_gov_workers_total Total state government workers Integer 4 0 0 fed_gov_workers_total Total federal government workers Integer 4 0 0 selfemp_notincorpor_unpaidfam_w Total self-employed in own not incorporated business workers and unpaid family workers Integer 4 0 0 pct_fed_workers Share of employed residents who are federal workers Double 8 0 0 state_FIPS state_FIPS String 255 0 0 county_FIPS county_FIPS String 255 0 0 tract_FIPS tract_FIPS String 255 0 0 FIPS_code FIPS_code String 255 0 0 jurisdiction jurisdiction String 255 0 0 state state String 255 0 0 GEO_ID GEO_ID String 255 0 0 Shape_Length Shape_Length Double 8 0 0 Length of feature in internal units. Esri Positive real numbers that are automatically generated. Shape_Area Shape_Area Double 8 0 0 Area of feature in internal units squared. 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