Lake County Tax Parcel Boundaries with Weekly Updates

Lake County's parcel boundaries are developed from deeds and legal documents dating back to the mid-1800s. The dataset includes polygons and centroids for all parcels, updated weekly to reflect changes up to December 31st of the preceding year. It is published by Lake County, Illinois, for tax assessment and local government functions.

Use Cases

• Visualizing property inventory for tax administration based on parcel polygons.
• Mapping land subdivisions and consolidations based on weekly spatial updates.
• Linking parcel geometry to external assessment data using the Property Index Number (PARCEL_NUM).
• Analyzing historical land division patterns based on Public Land Survey System (PLSS) quarter-section codes.

Strengths

• Weekly update frequency ensures incorporation of recent legal transactions.
• Historical depth with records tracing back to the mid-1800s.
• Includes both polygon boundaries and centroid point layers for spatial analysis.

Limitations

• The only attribute included is the Property Index Number (PARCEL_NUM); all other assessment data is in a separate file.
• Boundaries are for visual inventory and administrative purposes, not for precise legal surveying.
• Row count and dataset size are unknown, which may limit suitability assessment.

Provenance

Source

Lake County, Illinois

Collection Method

Developed from deeds, plats of subdivision, and other legal documents submitted to the Recorder of Deeds.

Time Range

Legal records up to December 31st of the preceding year are included, with historical documents from the mid-1800s.

Freshness

Updated weekly.

Geography

Lake County, Illinois, USA.