Download File
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Layer
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Type
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Description
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census_geography.zip
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FEDERAL_BLOCK_2010
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Polygon
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Census blocks are statistical areas bounded on all sides by visible
(ex: roads, streams) and/or nonvisible (political boundaries)
features. Blocks are the smallest geographic areas for which the
Census Bureau publishes data from the decennial census. For census
data, visit www.census.gov.
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FEDERAL_BLOCKGROUP_2010
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Polygon
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Block Groups (BG) are clusters of blocks within the same census tract
that have the same first digit of their 4-digit census block number
from the same decennial census. A BG usually covers a contiguous
area. Each census tract contains at least one BG, and BGs are
uniquely numbered within each census tract. For census data, visit www.census.gov.
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FEDERAL_TRACT_2010
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Polygon
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Census tracts are small, relatively permanent statistical
subdivisions of a county or equivalent entity. Census tracts
generally have a population size between 1,200 and 8,000 people, with
an optimum size of 4,000 people. Census tract boundaries generally
follow visible and identifiable features. For census data, visit
www.census.gov.
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electoral.zip
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SUPERVISOR_DISTRICTS
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Polygon
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Supervisor districts (aka magisterial districts). Fairfax county is
divided into nine districts, each holding a seat on the county board
of supervisors.
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SUPERVISOR_OFFICE_LOCATIONS
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Point
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Supervisor district office locations.
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US_CONGRESSIONAL_DISTRICTS
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Polygon
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U.S. Congressional districts within Fairfax county.
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VA_DELEGATE_DISTRICTS
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Polygon
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VA Delegate districts within Fairfax county.
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VA_SENATE_DISTRICTS
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Polygon
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VA Senate districts within Fairfax county.
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VOTING_LOCATIONS
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Point
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Polling places. Attributes include name of facility, associated
precinct(s) and address.
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VOTING_PRECINCTS
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Polygon
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Voting precincts. Attributes include precinct name, polling place and
supervisor district.
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misc.zip
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COUNTY_BORDER
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Polygon
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Geographic boundary, portraying extent and limits of land recognized
as Fairfax County, Commonwealth of Virginia. Defined in part by
both physical features (Potomac and Occoquan Rivers), and monumented
legal boundaries for surrounding jurisdictions (State of Maryland,
Arlington, Loudoun, and Prince William Counties, cities of Alexandria
and Falls Church).
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HUMAN_SVCS_REGIONS
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Polygon
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The four human services regions were created based mainly on our
county's geographic areas, in addition to the following criteria:
current human services caseload distribution; total population
distribution; postal zip codes; areas served by community-based
organizations; natural boundaries and communities; school enrollment
areas; magisterial districts; minority populations; population
income.
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MAJOR_UTILITY_LINES
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Line
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Major utility lines, with attributes that include type (electric,
gas, telephone). Captured from 1995 source map at a scale of 1 inch =
2000 feet.
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POLITICAL_JURISDICTIONS
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Polygon
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Geographic boundaries for Fairfax County and surrounding
jurisdictions (Montgomery, Prince Georges, Arlington, Loudoun, and
Prince William Counties, cities of Alexandria and Falls Church,
Washington D.C.).
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USGS_GRID
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Polygon
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USGS quad grids for Fairfax County.
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VOLUNTEER_GROUP_AREAS
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Polygon
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The Volunteer Groups (also known as Community Based Organizations)
are non-profit organizations that provide basic needs assistance to
specific areas of the county. This layer defines their service areas.
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ZIPCODE_AREAS
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Polygon
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ZIP code areas within the county.
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parks.zip
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PARKS_FCPA
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Polygon
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All land parcels under ownership of Fairfax County Park Authority.
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PARKS_FCPA_MAINTENENCE_AREAS
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Polygon
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The county is divided into 6 grounds management areas to determine
responsibility for Park Authority grounds maintenance.
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PARKS_NON_FCPA
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Polygon
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Non-county owned parkland. Attributes include jurisdiction and name
of property.
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refuse.zip
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REFUSE_COLLECTION_AREAS
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Polygon
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Collection areas for refuse and recycling pickup. These areas are
broken down by special tax districts from the Department of Tax
Administration system.
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REFUSE_FACILITY_LOCATIONS
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Point
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Locations of collection depot, disposal facilties, mulch distribution
centers and recycling centers.
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REFUSE_PICKUP_DAYS
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Polygon
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Refuse collection areas depicted by service days.
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REFUSE_TYPE_AREAS
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Polygon
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Refuse collection areas depicted by refuse type (leaf and refuse;
refuse only).
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schools.zip
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ES_ATTENDANCE_AREAS
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Polygon
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Elementary school attendance areas for Fairfax County Public Schools.
Attributes include school name, address and website.
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HS_ATTENDANCE_AREAS
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Polygon
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High school attendance areas for Fairfax County Public Schools.
Attributes include school name, address and website.
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MS_ATTENDANCE_AREAS
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Polygon
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Middle school attendance areas for Fairfax County Public Schools.
Attributes include school name, address and website.
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SCHOOL_CLUSTERS
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Polygon
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Clusters are administrative divisions of the Fairfax County Public
Schools.
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SCHOOL_FACILITIES
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Point
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All the schools, centers and administrative support locations for
Fairfax County Public Schools. Attributes include name, address and
website.
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soils.zip
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RADON_POTENTIAL_AREAS
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Polygon
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Radon potential of rocks and soils in Fairfax County. From a study
conducted by the Fairfax County Health Department during the winters
of 1986-87 and 1987-88.
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SOILS
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Polygon
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1990 soil classification. Published by the now-defunct Fairfax County
Soil Office.
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SOIL_SURVEY_FEET
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Polygon
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Official 2011 soil classification. Published as a combined effort
between Fairfax County, Natural Resource Conservation Service, and
the Northern Virginia Soil and Water Conservation District.
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transportation.zip
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AIRPORTS
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Polygon
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Includes Dulles International Airport, Ronald Reagan Washington
National Airport and Davison Airfield.
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RAILROADS_4000
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Line
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Railroad lines as captured from 1995 source map at a scale of 1
inch = 2000 feet.
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ROADWAYS
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Line
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Street centerlines for Fairfax County, City of Fairfax, Falls Church,
Arlington and Alexandria, as well as certain routes extending into
adjacent areas. Attributes include: street name, route number, class,
status, address range, speed limit.
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water.zip
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CHESAPEAKE_BAY_AREAS
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Polygon
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Delineation of Chesapeake Bay Preservation Areas (Resource Protection
Areas and Resource Management Areas).
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HYDRO_AREAS_4000
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Polygon
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Water features as captured from 1995 source map at a scale of 1 inch
= 2000 feet.
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HYDRO_EDGES_4000
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Line
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Water features as captured from 1995 source map at a scale of 1 inch
= 2000 feet.
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WATERSHEDS
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Polygon
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A watershed is an area of land that drains to a particular water
body, such as a lake or river. 30 watersheds are delineated for
Fairfax County.
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zoning.zip
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HISTORIC_OVERLAY_DISTRICTS
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Polygon
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Inside an Historic Overlay District certain regulations on
development apply which serve to protect historic resources.
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PLANNING_AREAS
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Polygon
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The county is divided into 4 planning areas.
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PLANNING_DISTRICTS
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Polygon
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Planning districts are subunits of planning areas.
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