The TIGER/Line shapefiles and related database files (.dbf) 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 shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Face refers to the areal (polygon) topological primitives that make up MTDB. A face is bounded by one or more edges; its boundary includes only the edges that separate it from other faces, not any interior edges contained within the area of the face. The Topological Faces Shapefile contains the attributes of each topological primitive face. Each face has a unique topological face identifier (TFID) value. Each face in the shapefile includes the key geographic area codes for all geographic areas for which the Census Bureau tabulates data for both the 2020 Census and the annual estimates and surveys. The geometries of each of these geographic areas can then be built by dissolving the face geometries on the appropriate key geographic area codes in the Topological Faces Shapefile.

The TIGER/Line shapefiles and related database files (.dbf) 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 filewith no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independentdata set, or they can be combined to cover the entire nation. Linear Water Features includes single-line drainage water features and artificial path features that run through double-line drainage features such as rivers and streams, and serve as a linear representation of these features. The artificial path features may correspond to those in the USGS National Hydrographic Dataset (NHD). However, in many cases the features do not match NHD equivalent feature and will not carry the NHD metadata codes. These features have a MAF/TIGER Feature Classification Code (MTFCC) beginning with an "H" to indicate the super class of Hydrographic Features.

The TIGER/Line shapefiles and related database files (.dbf) 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 shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The Address Ranges Relationship File (ADDR.dbf) contains the attributes of each address range. Each address range applies to a single edge and has a unique address range identifier (ARID) value. The edge to which an address range applies can be determined by linking the address range to the All Lines Shapefile (EDGES.shp) using the permanent topological edge identifier (TLID) attribute. Multiple address ranges can apply to the same edge since an edge can have multiple address ranges. Note that the most inclusive address range associated with each side of a street edge already appears in the All Lines Shapefile (EDGES.shp). The TIGER/Line Files contain potential address ranges, not individual addresses. The term "address range" refers to the collection of all possible structure numbers from the first structure number to the last structure number and all numbers of a specified parity in between along an edge side relative to the direction in which the edge is coded. The address ranges in the TIGER/Line Files are potential ranges that include the full range of possible structure numbers even though the actual structures may not exist.

The TIGER/Line shapefiles and related database files (.dbf) 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 shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Edge refers to the linear topological primitives that make up MTDB. The All Lines Shapefile contains linear features such as roads, railroads, and hydrography. Additional attribute data associated with the linear features found in the All Lines Shapefile are available in relationship (.dbf) files that users must download separately. The All Lines Shapefile contains the geometry and attributes of each topological primitive edge. Each edge has a unique TIGER/Line identifier (TLID) value.

The TIGER/Line shapefiles and related database files (.dbf) 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 filewith no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independentdata set, or they can be combined to cover the entire nation. The Address Range / Feature Name Relationship File (ADDRFN.dbf) contains a record for each address range / linear feature name relationship. The purpose of this relationship file is to identify all street names associated with each address range. An edge can have several feature names; an address range located on an edge can be associated with one or any combination of the available feature names (an address range can be linked to multiple feature names). The address range is identified by the address range identifier (ARID) attribute that can be used to link to the Address Ranges Relationship File (ADDR.dbf). The linear feature name is identified by the linear feature identifier (LINEARID) attribute that can be used to link to the Feature Names Relationship File (FEATNAMES.dbf).

The TIGER/Line shapefiles and related database files (.dbf) 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 filewith no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independentdata set, or they can be combined to cover the entire nation. The Address Range / Feature Name Relationship File (ADDRFN.dbf) contains a record for each address range / linear feature name relationship. The purpose of this relationship file is to identify all street names associated with each address range. An edge can have several feature names; an address range located on an edge can be associated with one or any combination of the available feature names (an address range can be linked to multiple feature names). The address range is identified by the address range identifier (ARID) attribute that can be used to link to the Address Ranges Relationship File (ADDR.dbf). The linear feature name is identified by the linear feature identifier (LINEARID) attribute that can be used to link to the Feature Names Relationship File (FEATNAMES.dbf).

The TIGER/Line shapefiles and related database files (.dbf) 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 shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The Topological Faces / Area Hydrography Relationship File (FACESAH.dbf) contains a record for each face / area hydrography feature relationship. Face refers to the areal (polygon) topological primitives that make up MTDB. A face is bounded by one or more edges; its boundary includes only the edges that separate it from other faces, not any interior edges contained within the area of the face. The face to which a record in the Topological Faces / Area Hydrography Relationship File (FACESAH.dbf) applies can be determined by linking to the Topological Faces Shapefile (FACES.shp) using the permanent topological face identifier (TFID) attribute. The area hydrography feature to which a record in the Topological Faces / Area Hydrography Relationship File (FACESAH.dbf) applies can be determined by linking to the Area Hydrography Shapefile (AREAWATER.shp) using the area hydrography identifier (HYDROID) attribute. A face may be part of multiple area water features. An area water feature may consist of multiple faces.

The TIGER/Line shapefiles and related database files (.dbf) 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 filewith no overlaps or gaps between parts, however, each TIGER/Line File is designed to stand alone as an independent dataset, or they can be combined to cover the entire nation. The Area Hydrography Shapefile contains the geometry and attributes of both perennial and intermittent area hydrography features, including ponds, lakes, oceans, swamps (up to the U.S. nautical three-mile limit), glaciers, and the area covered by large rivers, streams, and/or canals that are represented as double-line drainage. Single-line drainage water features can be found in the Linear Hydrography Shapefile (LINEARWATER.shp). Linear water features includes single-line drainage water features and artificial path features, where they exist, that run through double-line drainage features such as rivers, streams, and/or canals, and serve as a linear representation of these features.

The TIGER/Line shapefiles and related database files (.dbf) 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 shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The Other Identifiers Relationship File contains external identifier codes, such as National Hydrographic Dataset (NHD) codes and individual county identifiers. The edge to which an Other Identifiers Relationship File record applies can be determined by linking to the All Lines shapefile on the permanent edge identifier (TLID) attribute. Not every TLID has an external identifier associated with it and some TLIDs may have more than one.

Sandy Springs City Limits approximate digital representation of corporate boundaries. This feature is for general reference only and does not substitute a survey or legal documents. For full legal description see the City Charter specifically, text hosted by Appendix A:"Beginning at the northwest corner of the City of Atlanta, as the boundaries of said city existed on January 1, 2005, at the point where the northerly city limit line of said city intersects the westerly county line of Fulton County and the Chattahoochee River, running thence generally easterly along the said northerly city limit line of the City of Atlanta, following the meanderings thereof, to the point where said line intersects the Fulton-DeKalb County line; run thence northerly, generally easterly, and generally northerly along the easterly county line of Fulton County to the point where the Fulton-Gwinnett County line intersects the Chattahoochee River; run thence generally west and southwest along the southern bank of said river, following the meanderings thereof, to the point of beginning. The corporate limits of the City of Sandy Springs shall also consist of properties, if any, annexed by local ordinance." - Appendix Acs

This Geographic Information System dataset contains a shapefile of the watershed drainage area boundaries for the 15 watersheds which were used in the study in Gwinnett County, Georgia. The watersheds were delineated with StreamStats.

The TIGER/Line shapefiles and related database files (.dbf) 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 shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The All Roads Shapefile includes all features within the MTDB Super Class "Road/Path Features" distinguished where the MAF/TIGER Feature Classification Code (MTFCC) for the feature in MTDB that begins with "S". This includes all primary, secondary, local neighborhood, and rural roads, city streets, vehicular trails (4wd), ramps, service drives, alleys, parking lot roads, private roads for service vehicles (logging, oil fields, ranches, etc.), bike paths or trails, bridle/horse paths, walkways/pedestrian trails, and stairways.

This dataset contains population densities of 15 study watersheds in Gwinnett County, Georgia from 2000 to 2020. Population densities were determined for 2000, 2010, and 2020 from the decadal U.S. Census and for 2012 and 2017 from the American Community Survey 5-year estimates of 2010-14 and 2015¬-19 block group data, respectively. Population density within each watershed was determined by clipping the census block group data by the watershed boundaries and area-weighting the block group population density data within each watershed. Census block group data is the smallest geographic unit for which the census provides data.

U.S House of Representatives districts within Gwinnett County, Georgia

This polygon feature class represents the zipcode boundaries for Gwinnett County and incorporated areas. This feature was sourced from the US Postal Service and is not actively maintained by Gwinnett County LIS

The Metropolitan Planning Area (MPA) boundary is the line that includes the entire existing urbanized area defined by the United States Census, plus the areas expected to urbanize in the next 20 years. These areas are the basis for long-range and short-range transportation plans required by Federal law.After each Census, Federal rules require that ARC and local governments redraw the boundary. Being included in the MPA means those local governments can apply for federal funding through the TIP process and become eligible for funding under the Livable Centers Initiative, the comprehensive transportation plan, and other ARC projects. Following the 2020 Census, the Census Bureau designated a revised Atlanta Urbanized Area(UA) based on 2020 Census data. The Atlanta UA includes all or part of 20 counties, down from the 23 counties designated following the 2010 Census. These 20 include Barrow, Bartow, Cherokee, Clayton, Cobb, Coweta, Dawson, DeKalb, Douglas, Fayette, Forsyth, Fulton, Gwinnett, Hall, Henry, Newton, Paulding, Rockdale, Spalding, and Walton counties.The Census applied new, stricter criteria in determining whether a census tract was urban or rural. In some places, this has meant that the Atlanta UA appears to have gotten smaller. For this reason, Pike County is no longer included in either the Atlanta Urbanized Area or the new MPA boundary. The Atlanta UA also no longer extends into Carroll County, though the new MPA boundary will include part of Carroll County as detailed below. The parts of Jackson County previously included in the Atlanta UA are now classified with the Gainesville UA. Adjacent to the Atlanta UA are the Cartersville and Gainesville UAs. These areas are represented by their own metropolitan planning organizations (MPOs). By previous formalagreement, ARC has assigned transportation planning responsibilities for the portion of the Atlanta UA in Bartow County to the Cartersville-Bartow Metropolitan Planning Organization (CBMPO).By similar previous formal agreement, ARC has assigned transportation planning responsibilities for the portions of the Atlanta UA in Hall and Jackson counties to the Gainesville-Hall Metropolitan Planning Organization (GHMPO), while GHMPO has assigned transportation planning responsibilities for the portions of the Gainesville UA in Forsyth and Gwinnett counties to ARC. These agreements will be updated to reflect new geographies andnecessary agreements following the 2020 Census.Data from the 2020 Census identified a new Winder Urban Area existing in Barrow,Gwinnett, and Walton counties. With a population of 50,189, the Winder UA exceeds the threshold of 50,000 established by Federal law to be designated as its own MPO. Conversations continue between ARC, the State, the City of Winder, and Barrow County about whether the City and County will form their own MPO; Federal law requires agreementbetween the two bodies. Until and unless Winder and Barrow County elect to form an MPO, they shall remain part of ARC. Should a Winder MPO be created, the new agreement between ARC and GHMPO will also need to include the new Winder MPO and divide transportation planning responsibilities in Barrow, Gwinnett, Hall, and Walton counties between the three agencies. ARC has developed the attached revised Metropolitan Planning Area through discussions with planning partners.• Like before, the new MPA boundary continues to contain the ARC’s 11-county region (Cherokee, Clayton, Cobb, DeKalb, Douglas, Fayette, Forsyth, Fulton, Gwinnett, Henry, and Rockdale) in its entirety, as well as the entirety of Coweta and Paulding counties.• Newton County is now included in the new MPA boundary in its entirety to account for significant growth along Interstate 20 in the Covington and Stanton Springs areas.• Barrow County is also now included in the new MPA boundary in its entirety until and unless the City of Winder and Barrow County form their own MPO.• While the Atlanta UA was reduced in Spalding County, and a separate Griffin UA identified that does not meet the minimum threshold to form its own MPO, the new MPA boundary expands to include all of Spalding County to account for expected growth along Interstate 75, US 19-41, and State Route 16.• In Dawson County, the new MPA boundary accounts for population growth along Lake Lanier.• In Walton County, the new MPA boundary includes areas that the Census has designated as urban, as well as the cities of Monroe and Social Circle.• Carroll County is no longer considered part of the Atlanta Urbanized Area. The county contains two separate Urbanized Areas, Carrollton and Villa Rica, neither of which is large enough to form its own MPO. Because the City of Villa Rica is geographically divided between Carroll and Douglas counties, the City has opted to remain entirely within ARC. Accordingly, the new MPA boundary includes the portion of Villa Rica in Carroll County.