Green Oaks homeowners paid property taxes equaling 2.3% of their home values during the fourth quarter of 2025—more than 2.6 times the national average, BlockShopper.com reports.
Six Green Oaks homes sold in that quarter with a median sales price of $655,500. The city’s median tax bill in 2025 was $15,032, which represents 2.3% of the median assessed value.
The average effective property tax rate across the U.S. was 0.888% in 2024.
Within Lake County, Round Lake Park, Wadsworth and Forest Lake posted the three highest effective property tax rates among area cities.
This article calculates the 2025 effective property tax rate by factoring in estimated inflation and county-supplied 2023 tax figures. Effective property tax rates can vary in certain circumstances.
U.S. home prices continued rising in 2025, with the nationwide median reaching approximately $447,000 in June. That marks a 1.13% rise from the previous year, Redfin noted. A notable gap persists between supply and demand, with 36% more sellers than buyers—a difference of 508,715 homes. Redfin considers a market balanced when the number of sellers and buyers differs by less than 10%.
The following table provides a comparison of Round Lake Park and select other Lake County municipalities by median effective property tax rate, based on sales and property 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% |
