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    • American Community Survey: 5-Year Migration Flows

    Metadata Updated: September 30, 2025

    Migration flows are derived from the relationship between the location of current residence in the American Community Survey (ACS) sample and the responses given to the migration question "Where did you live 1 year ago?". There are flow statistics between state or world region of residence 1 year ago and current county of residence. In addition to the flow estimates, there are supplemental statistics files that contain migration/geographical mobility estimates (e.g. nonmovers, moved to a different state, moved from abroad) for each current residence county.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: Creative Commons CCZero

    Downloads & Resources

    References

    https://www.census.gov/developers/

    Dates

    Metadata Created Date September 30, 2025
    Metadata Updated Date September 30, 2025

    Metadata Source

    Harvested from Commerce Non Spatial Data.json Harvest Source

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 30, 2025
    Metadata Updated Date September 30, 2025
    Publisher U.S. Census Bureau
    Maintainer
    Identifier https://api.census.gov/data/id/ACSFLOWS2021
    Data Last Modified 2023-09-19 19:08:06.0
    Public Access Level public
    Bureau Code 006:07
    C Dataset "acs", "flows"
    C Documentationlink https://www.census.gov/developer/
    C Exampleslink http://api.census.gov/data/2021/acs/flows/examples.json
    C Geographylink http://api.census.gov/data/2021/acs/flows/geography.json
    C Groupslink http://api.census.gov/data/2021/acs/flows/groups.json
    C Isaggregate True
    C Isavailable True
    C Sorts Url http://api.census.gov/data/2021/acs/flows/sorts.json
    C Tagslink http://api.census.gov/data/2021/acs/flows/tags.json
    C Variableslink http://api.census.gov/data/2021/acs/flows/variables.json
    C Vintage 2021
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    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 4930b65a-d1f5-446d-95b0-4ea98f32c4c8
    Harvest Source Id bce99b55-29c1-47be-b214-b8e71e9180b1
    Harvest Source Title Commerce Non Spatial Data.json Harvest Source
    License https://creativecommons.org/publicdomain/zero/1.0/
    Old Spatial US
    Program Code 006:004
    Publisher Hierarchy U.S. Government > U.S. Department Of Commerce > U.S. Census Bureau
    Related Documents https://www.census.gov/developers/
    Source Datajson Identifier True
    Source Hash 7a6b003d452a3e80284bba7bc63fa98f9e6caef0a6a23c6fc083e03bcb902d03
    Source Schema Version 1.1
    Spatial {"type":"Polygon","coordinates":-124.733253,24.544245,-124.733253,49.388611,-66.954811,49.388611,-66.954811,24.544245,-124.733253,24.544245}
    Temporal 2021/2021

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