ILLINOIS · 2025 ASSESSMENT YEAR
Lake County, Illinois residential parcels
Explore houses, townhomes and condo units by township.
Official 2025 market values · Tax parcel IDs · Lake County parcel outlines
Uses official market values, not assessed values. This map covers residential improved tax parcels (RES / use code 40). Detailed dwelling counts are unavailable in six townships, so it is not a verified single-family-only inventory.
Properties on the map
Outline colors: ● Over $3M to $5M · ● Over $5M to $10M · ● Over $10M. Shared-lot color follows its highest selected property value.
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| Property / unit | Parcel ID | Township | Property type | Market value |
|---|
How to read this map
Maps 393 residential improved tax parcels above $3 million, 100 above $5 million and 4 above $10 million. Thresholds overlap.
Uses the official 2025 assessment-year market value (mkt_total_assyr) from the county extract updated March 3, 2026. The 2024 tax-year fields are not used for these filters. Market value is an assessor estimate, not a sale or listing price.
Counts each primary active residential tax parcel once, excluding repeated secondary building rows, vacant lots, commercial, industrial, farm and other property classes. Houses, townhomes and condos are eligible under residential improved classification; the file does not reliably establish the number of dwellings per parcel across the county.
The county does not provide detailed building characteristics for Cuba, Ela, Grant, Libertyville, Shields and Vernon townships in this extract. Mapped acreage describes land, not a survey or apartment size.
Five qualifying records without reliable boundary matches
Four are unit-address accounts. All five are omitted from the map and counts.
| Address | Parcel ID | Market value |
|---|---|---|
| 660 N GREEN BAY RD | 1233101011 | $3,293,043 |
| 715 N MCKINLEY RD UNIT 100 | 1233109071 | $6,640,225 |
| 715 N MCKINLEY RD UNIT 101 | 1233109072 | $4,913,754 |
| 719 N MCKINLEY RD UNIT 200 | 1233109074 | $7,916,439 |
| 715 N MCKINLEY RD UNIT 201 | 1233109075 | $8,812,070 |
Sources: official Lake County assessment extract, county field definitions, and official Lake County parcel GIS.