Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content

Try the next-generation Data Catalog at catalog-beta.data.gov and help shape it with your feedback.

  • Feedback
    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

    2020 Census Block Groups

    Metadata Updated: January 31, 2025

    This data layer is an element of the Oregon GIS Framework. 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.

    Block Groups (BGs) are clusters of blocks within the same census tract. Each census tract contains at least one BG, and BGs are uniquely numbered within census tracts. BGs have a valid code range of 0 through 9. BGs have the same first digit of their 4-digit census block number from the same decennial census. For example, tabulation blocks numbered 3001, 3002, 3003,.., 3999 within census tract 1210.02 are also within BG 3 within that census tract. BGs coded 0 are intended to only include water area, no land area, and they are generally in territorial seas, coastal water, and Great Lakes water areas. Block groups generally contain between 600 and 3,000 people. A BG usually covers a contiguous area but never crosses county or census tract boundaries. They may, however, cross the boundaries of other geographic entities like county subdivisions, places, urban areas, voting districts, congressional districts, and American Indian / Alaska Native / Native Hawaiian areas.

    The BG boundaries in this release are those that were delineated as part of the Census Bureau's Participant Statistical Areas Program (PSAP) for the 2020 Census.

    Access & Use Information

    Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

    Downloads & Resources

    Dates

    Metadata Created Date July 1, 2023
    Metadata Updated Date January 31, 2025

    Metadata Source

    Harvested from oregon json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date July 1, 2023
    Metadata Updated Date January 31, 2025
    Publisher U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Spatial Data Collection and Products Branch
    Maintainer
    Identifier https://www.arcgis.com/home/item.html?id=b76a6c980eda4cf3b76dcba5f64847c5&sublayer=0
    Data First Published 2023-06-24
    Data Last Modified 2023-06-24
    Category geospatial
    Public Access Level public
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.oregon.gov/data.json
    Schema Version 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 882c72b0-5915-46bd-b6d7-e21e1c0458ba
    Harvest Source Id d747cd8f-d1d6-49a3-ab0b-ea17684f1121
    Harvest Source Title oregon json
    Homepage URL https://geohub.oregon.gov/datasets/oregon-geo::2020-census-block-groups
    Metadata Type geospatial
    Old Spatial -124.7036,41.9921,-116.4633,46.2991
    Source Datajson Identifier True
    Source Hash 83153e9abfeb12232672f68403c3f751a67f3f3cc7b924f40eecbf43d95890d3
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -124.7036, 41.9921, -124.7036, 46.2991, -116.4633, 46.2991, -116.4633, 41.9921, -124.7036, 41.9921}

    Didn't find what you're looking for? Suggest a dataset here.