Homeowners in Grayslake paid property taxes totaling 2.8% of their home’s value during the fourth quarter of 2025, a rate over 3.2 times higher than the national average, BlockShopper.com reports.
Data from the 51 homes sold in Grayslake during this period place the median sales price at $347,000. The city’s median property tax bill in 2025 was $9,732, which represents 2.8% of the median value for taxed residences.
The nationwide average effective property tax rate stood at 0.888% in 2024.
Within Lake County, Round Lake Park, Wadsworth, and Forest Lake had the highest effective property tax rates.
This report calculated Grayslake’s effective property tax rate for 2025 by applying estimated inflation figures to 2023 county tax data. Actual rates may differ slightly in some instances.
Across the U.S., home prices continued to climb in 2025 with the median value reaching about $447,000 in June, according to Redfin, a 1.13% increase from a year before. Redfin’s data indicate a notable supply and demand disparity, with 36% more homes for sale than buyers, totaling a difference of 508,715 units. By Redfin’s standard, the market is considered balanced when the seller and buyer counts differ by no more than 10%.
The comparison table below shows Round Lake Park and several other Lake County cities by their median effective property tax rates, using sales and tax data from the fourth quarter of 2025:
| City | Q4 2025 Sales | Q4 2025 Median Price | Median tax 2025 | Effective tax rate |
|---|---|---|---|---|
| Round Lake Park | 5 | $49,000 | $4,719 | 9.6% |
| Wadsworth | 9 | $225,000 | $11,235 | 5% |
| Forest Lake | 2 | $209,000 | $7,297 | 3.5% |
| Vernon Hills | 40 | $303,000 | $10,379 | 3.4% |
| Round Lake | 22 | $257,500 | $7,694 | 3% |
| Lincolnshire | 14 | $565,000 | $16,396 | 2.9% |
| Riverwoods | 9 | $650,000 | $18,941 | 2.9% |
| Grayslake | 51 | $347,000 | $9,732 | 2.8% |
| Hainesville | 7 | $252,500 | $6,968 | 2.8% |
| Gurnee | 57 | $350,000 | $9,370 | 2.7% |
| Zion | 43 | $251,000 | $6,612 | 2.6% |
| Third Lake | 2 | $380,750 | $10,056 | 2.6% |
| Fox Lake Hills | 4 | $222,500 | $5,743 | 2.6% |
| Lindenhurst | 30 | $336,000 | $8,704 | 2.6% |
| Round Lake Heights | 4 | $262,000 | $6,707 | 2.6% |
| Buffalo Grove | 42 | $505,000 | $13,039 | 2.6% |
| Antioch | 43 | $350,000 | $8,731 | 2.5% |
| Volo | 3 | $411,000 | $10,422 | 2.5% |
| Gages Lake | 21 | $305,000 | $7,763 | 2.5% |
| North Chicago | 23 | $225,000 | $5,730 | 2.5% |
| Island Lake | 2 | $240,000 | $5,990 | 2.5% |
| Wauconda | 17 | $295,000 | $7,389 | 2.5% |
| Winthrop Harbor | 14 | $273,000 | $6,771 | 2.5% |
| Grandwood Park | 9 | $386,500 | $9,595 | 2.5% |
| Deerfield | 49 | $582,500 | $14,463 | 2.5% |
| Channel Lake | 2 | $209,250 | $5,120 | 2.4% |
| Lake Villa | 15 | $390,000 | $9,234 | 2.4% |
| Mundelein | 18 | $307,250 | $7,068 | 2.3% |
| Green Oaks | 6 | $655,500 | $15,032 | 2.3% |
| Lake Bluff | 16 | $613,000 | $14,017 | 2.3% |
| Harris Corners | 2 | $425,000 | $9,635 | 2.3% |
| Lake Barrington | 16 | $425,000 | $9,245 | 2.2% |
| Hawthorn Woods | 9 | $667,500 | $14,741 | 2.2% |
| Beach Park | 25 | $315,000 | $6,609 | 2.1% |
| Waukegan | 91 | $234,000 | $5,012 | 2.1% |
| Round Lake Beach | 52 | $250,500 | $5,316 | 2.1% |
| Long Grove | 9 | $1,040,000 | $22,137 | 2.1% |
| Kildeer | 7 | $849,500 | $18,156 | 2.1% |
| Highwood | 6 | $457,500 | $9,487 | 2.1% |
| Lake Catherine | 5 | $265,000 | $5,434 | 2.1% |
| Libertyville | 65 | $589,000 | $11,865 | 2% |
| North Barrington | 10 | $828,750 | $16,742 | 2% |
| Fox Lake | 19 | $295,000 | $5,707 | 1.9% |
| Lotus Woods | 4 | $214,750 | $4,067 | 1.9% |
| Ingleside Shore | 9 | $270,000 | $5,094 | 1.9% |
| Barrington | 16 | $650,000 | $12,118 | 1.9% |
| Highland Park | 39 | $840,000 | $16,364 | 1.9% |
| Lakemoor | 5 | $405,000 | $7,207 | 1.8% |
| Venetian Village | 8 | $285,000 | $5,084 | 1.8% |
| Park City | 2 | $369,500 | $6,541 | 1.8% |
| Deer Park | 6 | $760,000 | $13,373 | 1.8% |
| Lake Zurich | 34 | $520,000 | $9,405 | 1.8% |
| Mylith Park | 2 | $277,250 | $4,042 | 1.5% |
| Knollwood | 3 | $543,000 | $7,921 | 1.5% |
| Lake Forest | 36 | $1,197,500 | $17,873 | 1.5% |
| Long Lake | 6 | $293,000 | $4,163 | 1.4% |
