Mercer County property record for 503 SW 4th St, Aledo, IL 61231
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.165 acres (7,200 sqft) |
| Owner | Company Name on File |
| Tax Bill | $2,102 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 101020106005 |
| Primary APN | 101020106005 |
|---|
| Lot Area | 7,200 sqft (0.165 acres) |
|---|---|
| Lot Dimensions | 120 ft deep x 60 ft wide |
| Street Address | 503 SW 4TH ST |
|---|---|
| City | ALEDO |
| State | IL |
| Zip | 61231-1819 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | S20 T14N R3W LOT 8 BLK 99 WILLITS & THOMPSONS ADDN |
| Legal Range | 03W |
| Legal Township | 14N |
| Legal Section | 20 |
| Legal Subdivision | WILLITS & THOMPSONS ADDN |
| Legal Block | 99 |
| Legal Lot Number | 8 |
| Jurisdiction | MERCER IL |
| Township / Civil Division | MERCER |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 40300 |
Source: Mercer County records · APN 101020106005
Assessment roll updated July 10, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | PO BOX 54, PALATINE, IL 60078-0054 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Deed Book / Page | 596 / 455 |
| Record Updated | Sep 20, 2026 |
Source: Mercer County records · Assessment roll updated July 10, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | Illinois |
| Municipality | Aledo City |
| County | Mercer County |
| County Subdivision | Mercer Township |
| Unified School District | Mercer County School District 404 (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $2,102.00 (+6.32%) | $34,780 (+20.1%) Land $3,730 Building $31,050 | $104,340 (+20.1%) Land $11,190 Building $93,150 |
| 2022 | $1,977.00 | $28,960 Land $3,105 Building $25,855 | $86,880 Land $9,315 Building $77,565 |
Source: FEMA National Flood Hazard Layer, Mercer County (17131C), as of April 19, 2010 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 7,000 / 7,000 |
| Mediacom Communications Cable · Fiber in parts of the area | 1,000 / 50 |
May also be available: AMG Technology Investment Group, Viola Holding Company.
Based on FCC filings for 268 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System, water system IL1310050, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | ALEDO serves 3,470 people |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Feb 2024 |
| Lead | 3 ppb (2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The service area is an EPA estimate; the actual supplier may differ. The full violation and enforcement history is in the system's EPA record.
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