De Witt County, IL Property Tax: $2,297/yr (2026)
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The effective property tax rate in De Witt County is 1.85% of assessed home value. On a home at the county median value of $124,200, that works out to about $2,298 per year, or $192 per month. De Witt County is located in central Illinois, and is home to approximately 15,461 residents.
About De Witt County
De Witt County covers approximately 397.6 square miles in Illinois. The county is home to about 15,461 residents living in roughly 7,312 housing units, of which 69.8% are owner-occupied. The median household income is $64,802, and the median home was built in 1961.
De Witt County borders Logan County, McLean County, Macon County, Piatt County — useful comparisons if you're considering nearby areas with potentially different tax rates.
How Property Taxes Work in Illinois
Property taxes in Illinois are administered at the county level. Each county sets a millage rate applied to the assessed value of real property — the effective rate above accounts for any partial assessments and exemptions already built into the local tax base. Assessed value can differ meaningfully from current market value depending on how often the county reassesses and what fraction of market value it uses.
Most counties in Illinois offer exemptions that reduce the taxable assessed value: homestead exemptions for primary residences, senior exemptions, disability exemptions, and veteran exemptions are common. These reduce your effective rate below the county-wide average shown here. Contact the De Witt County Assessor's office to learn which exemptions apply to your property and when to file.
De Witt County vs. Neighboring Counties
| Location | Eff. Rate | Median Home | Annual Tax |
|---|---|---|---|
| De Witt County, IL | 1.85% | $124,200 | $2,298 |
| Illinois state average | 1.83% | — | $2,273* |
| Logan County | 1.84% | $125,900 | $2,315 |
| McLean County | 2.27% | $198,300 | $4,503 |
| Macon County | 2.10% | $121,800 | $2,560 |
| Piatt County | 1.76% | $173,200 | $3,040 |
| US national average | 1.10% | $281,900 | $3,101 |
*State average annual tax computed at De Witt County's median home value of $124,200. Source: US Census ACS 2023 5-year estimates.
Frequently Asked Questions
How does De Witt County's property tax rate compare to the rest of Illinois?
At 1.85%, De Witt County is higher than the Illinois state average of 1.83%. On a home at the county median of $124,200, that means about $2,298 per year — versus $2,273 at the state average rate, a difference of $25 per year. Compared to the national average of 1.10%, De Witt County is above average.
What's a typical annual property tax bill in De Witt County?
For a home at the county median value of $124,200, the annual property tax in De Witt County is approximately $2,298 — or about $192 per month. For a home worth $186,300, expect around $3,447 per year. For a $248,400 home, approximately $4,595 per year. Use the calculator above to estimate taxes for any assessed value.
Where do I appeal a De Witt County property tax assessment?
Property assessment appeals in De Witt County are handled by the De Witt County Assessor's office. Most jurisdictions require filing within 30–90 days of receiving your assessment notice — confirm the specific deadline with the assessor's office before submitting, as deadlines and procedures vary by county. A successful appeal can reduce your assessed value and lower your tax bill for the current and future tax years.
What exemptions are available in De Witt County?
Illinois counties commonly offer homestead exemptions for owner-occupied primary residences, senior citizen exemptions for qualifying homeowners aged 65 and older, exemptions for disabled residents, and veterans' exemptions. Each exemption reduces your assessed taxable value, which in turn reduces your effective tax rate below the county-wide 1.85% shown here. Contact the De Witt County Assessor's office to confirm which exemptions are available and the application deadlines.
Data sources: US Census Bureau ACS 2023 5-Year Estimates, US Census Gazetteer (2024), County Adjacency File