The median sales price of a Sangamon County home in the first quarter of 2023 was $115,000, based on data from the 609 properties sold during that time. In 2020 the median tax bill for the county was $2,478, which is 2.2% of the median value of the homes that were taxed.
This is 1.9 times higher than the average effective property tax rate of 1.11% in the U.S. in 2023.
The analysis of Sangamon County real estate data showed homeowners in Illiopolis, Springfield, and Williamsville paid the highest rates.
The following table compares Illiopolis with some other cities belonging to Sangamon County by their median effective property tax rate, calculated using sales and property tax data from the first quarter of 2023.
| City | Q1 2023 Sales | Q1 2023 Median Price | Median tax 2023 | Effective tax rate |
|---|---|---|---|---|
| Illiopolis | 3 | $57,000 | $1,840 | 3.2% |
| Springfield | 487 | $102,000 | $2,717 | 2.7% |
| Williamsville | 5 | $160,000 | $4,330 | 2.7% |
| Southern View | 5 | $104,000 | $2,257 | 2.2% |
| Sherman | 7 | $220,000 | $4,792 | 2.2% |
| New Berlin | 2 | $165,500 | $3,506 | 2.1% |
| Thayer | 2 | $54,000 | $1,118 | 2.1% |
| Pawnee | 12 | $134,250 | $2,823 | 2.1% |
| Mechanicsburg | 3 | $99,000 | $2,029 | 2% |
| Riverton | 11 | $144,000 | $2,795 | 1.9% |
| Rochester | 9 | $240,000 | $4,311 | 1.8% |
| Chatham | 25 | $229,500 | $4,200 | 1.8% |
| Loami | 2 | $143,750 | $2,562 | 1.8% |
| Dawson | 3 | $190,000 | $3,268 | 1.7% |
| Auburn | 14 | $132,750 | $2,180 | 1.6% |
| Pleasant Plains | 7 | $250,000 | $3,627 | 1.5% |
| Buffalo | 1 | $175,000 | $2,258 | 1.3% |
| Spaulding | 1 | $290,000 | $3,793 | 1.3% |
| Divernon | 5 | $162,000 | $2,119 | 1.3% |
| Cantrall | 1 | $343,000 | $4,091 | 1.2% |
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