St. Clair County taxpayers paid approximately $7.8 million in County Flood Protection Tax in 2024, according to Illinois tax records.
This figure marks a noticeable increase over the previous year, when County Flood Protection Tax collection stood at approximately $7.5 million.
The County Flood Protection Tax, a crucial revenue stream, is primarily allocated for other taxing jurisdictions’ use.
A 2025 WalletHub study found that Illinois has the highest overall taxes in the U.S., with rates more than 50% higher than the national average. The study estimates that a median household in Illinois pays an effective tax rate of 16.58%, or about $13,099 per year.
| Year | Amount Collected | % Change from Previous Year |
|---|---|---|
| 2024 | $7,818,269 | 4.3% |
| 2023 | $7,494,720 | 0.2% |
| 2022 | $7,476,830 | 9.1% |
| 2021 | $6,851,340 | 32.6% |
| 2020 | $5,168,242 | 2.4% |
| 2019 | $5,047,572 | -9.3% |
| 2018 | $5,565,501 | – |



