Williamson County property record for 12431 Rte 166, Marion, IL 62959
| Property Type | Single Family Home |
|---|---|
| Details | 1,200 sqft · built 1967 |
| Lot Size | 2 acres (87,120 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $2,128 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 07-22-200-017 |
| Primary APN | 07-22-200-017 |
|---|
| Plumbing Fixtures | 5 Plumbing Fixtures |
|---|---|
| Stories | 1 Story |
| Building Area | 1,200 sqft Living Area |
| 1st Floor Area | 1,200 sqft |
| Basement Area | 1,200 sqft |
| Year Built | Built 1967 |
|---|---|
| Effective Year Built | Effective 1967 |
| Exterior Material | Other |
| Foundation Type | Raised |
| Lot Area | 87,120 sqft (2 acres) |
| Garage Area | 576 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Slab |
| Porch Area | 96 sqft |
| Heating System | Gas |
|---|
| Street Address | 12431 ROUTE 166 |
|---|---|
| City | MARION |
| State | IL |
| Zip | 62959-7261 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | PT SE S208.7 OF E417.4 |
| Legal Range | 03E |
| Legal Township | 09S |
| Legal Section | 22 |
| Jurisdiction | WILLIAMSON IL |
| Township / Civil Division | EAST MARION |
| Census Block Group | 3 |
| Census Block | 3016 |
| Census Tract | 21300 |
12431 Rte 166 is owned and occupied by two individuals.
Source: Williamson County records, as of October 20, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 12431 ROUTE 166, MARION, IL 62959-7261 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 12431 Rte 166 was $2,128 with exemptions applied, up 10.1% from the year before.
Source: Williamson County assessment roll, as of October 20, 2026
| Type | Name |
|---|---|
| State | Illinois |
| County | Williamson County |
| Unified School District | Marion Community Unit School District 2 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $2,128.00 (+10.09%) | $39,530 (+14.41%) Land $10,035 Building $29,495 | $118,590 (+14.41%) Land $30,105 Building $88,485 |
| 2024 | $1,933.00 Homeowner's exemption Veteran's exemption | $34,550 Land $8,770 Building $25,780 | $103,650 Land $26,310 Building $77,340 |
| 2022 | $1,015.00 Homeowner's exemption Senior Citizen's exemption Veteran's exemption | $30,440 Land $7,730 Building $22,710 | $91,320 Land $23,190 Building $68,130 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 12431 Rte 166 in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective July 9, 2020
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 12431 Rte 166 is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · above 71% of Illinois |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: FCC Broadband Data Collection, based on 2 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Futiva Fiber | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| 4 SIWI Fixed Wireless | 100 / 20 |
| Wisper ISP Fixed Wireless | 100 / 20 |
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