Lake County, IL Housing Market Brief
county · IL · score computed October 2026
What is Lake County, IL’s Alpha Score?
The Alpha Score is a composite 0–100 index of market strength, a weighted blend of five dimensions. See the methodology.
Population band 5 of 5 (population 103,008–9,808,667) · comparable within its band
Where is Lake County, IL in its market cycle?
Lake County, IL is classified as Declining — cooling, with scores declining over recent months. This is a classification of recent (1–12 month) momentum, not a price forecast.
What’s the forecast for Lake County, IL?
County-level forecasts are paused (since Oct 18, 2026). The new public-data model we built to replace them didn't pass our accuracy test, and we won't publish forecasts again until a model does.
Lake County, IL housing market data
| Metric | Value | YoY | Source |
|---|---|---|---|
| Median Sale Price | $404K | ▲ +5% | Redfin |
| Median Days on Market | 50 days | ▼ -3.8% | Redfin |
| Months of Supply | 2.9 | ▲ +3.6% | Redfin |
| Homes for Sale | 1,990 | ▲ +2% | Redfin |
| Homes Sold | 684 | ▼ -1.3% | Redfin |
| Median Price / Sq Ft | $223 | ▲ +7% | Redfin |
How has Lake County, IL’s Alpha Score moved?
Markets like Lake County, IL
Frequently asked questions
Is Lake County, IL a buyer's or seller's market?
In the scores computed October 2026, Lake County, IL is classified as a Balanced Market, based on its Alpha Score of 44 out of 100. The classification reflects current price, building, affordability, economic, and rental-yield conditions.
Are home prices rising or falling in Lake County, IL?
The median sale price in Lake County, IL is $404K, having risen 5% over the past year, according to Redfin.
How affordable is Lake County, IL?
Lake County, IL scores 42 out of 100 on affordability — moderately affordable relative to local incomes and prevailing mortgage rates compared with other counties.
What's driving Lake County, IL's Alpha Score?
Lake County, IL's strongest dimension is Price Momentum (79/100) and its weakest is Inventory Health (18/100). The Alpha Score is a weighted blend of all five dimensions.
Want the live, interactive view of Lake County, IL? Open the full market dashboard — charts, ZIP-level drill-down, and watchlist tracking. Explore the map or read the methodology.