Loudoun 2020 Census Blocks

This GIS layer contains the geographical boundaries of the 2020 census blocks for Loudoun County, Virginia. The 2020 Census block boundaries were used for statistical data collection and tabulation purposes for the 2020 Decennial Census. Census blocks are the smallest geographic area for publishing data from the decennial Census. The geographical area covered by this geographic feature class is generally very small in densely settled areas, for instance one city block. In sparsely settled areas they may cover several square miles. Census blocks nest within every 2020 Census geographic area (i.e. block groups, tracts, census designated places, and local, state, and federal election districts). This nesting of blocks allows Census Bureau statistical data to be tabulated to the appropriate geographic areas by aggregating the block data up. Census blocks are uniquely numbered within census tracts, with the blocks valid range being 1 to 9999 with leading zeros added (i.e. 0001, 0023) when necessary to create a four digit unique identifier. This 2010 Census block layer is based on the U.S. Census Bureau Census 2020 TIGER/Line files. The boundaries are an extract of aerial photography and cartographic information, such as roads and streams, from the Loudoun County GIS system. Census Blocks are bounded on all sides by visible features, such as roads, streams, lakes, power lines, and railroad tracks, and/or by non-visible boundaries such as town and county boundaries, and short line-of-sight extensions of streets and roads.


CKAN dataset id d4a34ccf-48de-4c0b-832d-9c15d9dda566
상태 active
url https://catalog.data.gov/dataset/loudoun-2020-census-blocks-a496f
버전 2024-02-09
라이선스 other-license-specified
accessLevel public
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
harvest_object_id b25c5e8a-7045-449a-b45a-e998d8fe4cc9
harvest_source_id bc39e510-cff7-4263-8d5b-7c800dd08cd6
harvest_source_title Loudoun County Virginia Data Source
identifier https://www.arcgis.com/home/item.html?id=6efc6affcb17475a968175c60b3c704a&sublayer=13
issued 2021-08-26T20:53:08.000Z
landingPage https://geohub-loudoungis.opendata.arcgis.com/maps/LoudounGIS::loudoun-2020-census-blocks
license https://logis.loudoun.gov/loudoun/disclaimer.html
metadata_type geospatial
modified 2023-09-12T13:43:29.000Z
old-spatial -77.9634,38.8489,-77.3240,39.3216
publisher Loudoun GIS
resource-type Dataset
source_datajson_identifier true
source_hash 33c8a1b5ceb56019016577c5f80237f7aa9d5b47de3415bdee3c262ffedf9afa
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-77.9634, 38.8489], [-77.9634, 39.3216], [-77.3240, 39.3216], [-77.3240, 38.8489], [-77.9634, 38.8489]]]}
theme {geospatial}
담당자 LoudounCounty
담당자 연락처 mapping@loudoun.gov
제공 기관 Loudoun County, Virginia
최초 수집 일시 2024-02-20T23:12:53…
최근 수집 일시 2024-02-20T23:12:53…

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