Warren County property record for 503 E 4th Ave, Monmouth, IL 61462
| Property Type | Single Family Home |
|---|---|
| Details | 1,891 sqft · built 1900 |
| Lot Size | 0.146 acres (6,372 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $2,827 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 09-205-470-00 |
| Primary APN | 09-205-470-00 |
|---|
| Building Area | 1,891 sqft Living Area |
|---|
| Year Built | Built 1900 |
|---|---|
| Effective Year Built | Effective 1900 |
| Lot Area | 6,372 sqft (0.146 acres) |
| Lot Dimensions | 54 ft deep x 118 ft wide |
| Street Address | 503 E 4TH AVE |
|---|---|
| City | MONMOUTH |
| State | IL |
| Zip | 61462-2254 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | 118' E & W 54' N & S N PT LOT 8 BLOCK 41 OTP MONMOUTH LOT SIZE: 118' X 54' |
| Legal Block | 41 |
| Legal Lot Number | 8 |
| Jurisdiction | WARREN IL |
| Township / Civil Division | MONMOUTH |
| Census Block Group | 2 |
| Census Block | 2029 |
| Census Tract | 870500 |
Source: Warren County records, as of October 20, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 503 E 4TH AVE, MONMOUTH, IL 61462-2254 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
Source: Warren County assessment roll, as of July 24, 2026
| Type | Name |
|---|---|
| State | Illinois |
| County | Warren County |
| County Subdivision | Monmouth Township |
| Municipality | Monmouth City |
| Unified School District | Monmouth-Roseville Community Unit School District 238 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $2,827.00 (+14.78%) | $29,120 (+8.54%) Land $2,020 Building $27,100 | $87,360 (+8.54%) Land $6,060 Building $81,300 |
| 2024 | $26,830 (+11.7%) Land $1,860 Building $24,970 | $80,490 (+11.7%) Land $5,580 Building $74,910 | |
| 2022 | $2,463.00 | $24,020 Land $1,660 Building $22,360 | $72,060 Land $4,980 Building $67,080 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective August 9, 2021
| 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | MONMOUTH serves 8,902 people · EPA ID IL1870150 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Mar 2024 |
| Lead | 3 ppb (2026–2028) action level 15 ppb |
| Water Quality | Radium resolved · Oct 2024 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 last 3 years |
Results are for the whole water system, 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.
Source: FCC Broadband Data Collection, based on 467 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 1,200 / 35 |
| Nextlink Fixed Wireless | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: MTC Communications.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures