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

    Lake County Boundary

    Metadata Updated: December 6, 2025

    Download In State Plane Projection Here. This is our working version of the Lake County boundary. Although technically the county's eastern border extends eastward into Lake Michigan to the state line where Illinois meets Michigan, we routinely use the Lake Michigan shoreline as our eastern boundary for mapping purposes. The north, west and south boundaries are based on a compilation of survey data which aligns well, but not perfectly, with the border as mapped by neighboring counties and the State of Wisconsin, which forms the northern boundary of the county.

    Update Frequency: This dataset is updated on a weekly basis.

    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: See this page for license information.

    Downloads & Resources

    Dates

    Metadata Created Date September 1, 2022
    Metadata Updated Date December 6, 2025

    Metadata Source

    Harvested from Open data from Lake County, Illinois

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 1, 2022
    Metadata Updated Date December 6, 2025
    Publisher Lake County Illinois GIS
    Maintainer
    Identifier https://www.arcgis.com/home/item.html?id=2a805f5c5c5e45fda6a2670a66aa57e4&sublayer=2
    Data First Published 2016-11-23T18:01:51.000Z
    Data Last Modified 2025-11-30T12:11:14.454Z
    Category geospatial
    Public Access Level public
    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 6120ba4f-edd5-4696-80e2-cfd97a4c162d
    Harvest Source Id e2c1b013-5957-4c37-9452-7d0aafee3fcc
    Harvest Source Title Open data from Lake County, Illinois
    Homepage URL https://data-lakecountyil.opendata.arcgis.com/datasets/lakecountyil::lake-county-boundary
    License https://www.arcgis.com/sharing/rest/content/items/89679671cfa64832ac2399a0ef52e414/data
    Metadata Type geospatial
    Old Spatial -88.1998,42.1523,-87.7588,42.4958
    Source Datajson Identifier True
    Source Hash cc68cc5ae4751896988b9e07dc588917dd141ea1a378a8d9b8a17e76eb1a1482
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -88.1998, 42.1523, -88.1998, 42.4958, -87.7588, 42.4958, -87.7588, 42.1523, -88.1998, 42.1523}

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