Jefferson County property record for 623 S 20th St, Mount Vernon, IL 62864
| Property Type | Single Family Home |
|---|---|
| Details | 1,120 sqft · built 1920 |
| Lot Size | 0.152 acres (6,662 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $142 (2021) |
| Flood Zone | Zone X (minimal risk) |
| APN | 07-31-251-008 |
| Primary APN | 07-31-251-008 |
|---|
| Stories | 1 Story |
|---|---|
| Building Area | 1,120 sqft Living Area |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 1920 |
| Construction Type | Frame |
| Lot Area | 6,662 sqft (0.152 acres) |
| Street Address | 623 S 20TH ST |
|---|---|
| City | MOUNT VERNON |
| State | IL |
| Zip | 62864-4520 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | CASEY&MANNEN ORCHARD PK ADD LOT 157 |
| Legal Subdivision | CASEY&MANNEN ORCHARD PK ADDITION |
| Legal Lot Number | 157 |
| Jurisdiction | JEFFERSON IL |
| Township / Civil Division | MOUNT VERNON |
| Census Block Group | 3 |
| Census Block | 3008 |
| Census Tract | 50900 |
623 S 20th St is owned and occupied by an individual.
Source: Jefferson County records, as of July 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 623 S 20TH ST, MOUNT VERNON, IL 62864-4520 |
| 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 | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
Source: Jefferson County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | Illinois |
| County | Jefferson County |
| County Subdivision | Mount Vernon Township |
| Municipality | Mount Vernon City |
| Elementary School District | Mount Vernon School District 80 (PK - 08) |
| Secondary School District | Mount Vernon Township High School District 201 (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $6,451 Land $2,697 Building $3,754 | $19,353 Land $8,091 Building $11,262 | |
| 2022 | $4,837 Land $2,022 Building $2,815 | $14,511 Land $6,066 Building $8,445 | |
| 2021 | $142.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 623 S 20th St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 17, 2010
| 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 623 S 20th St is low, with less than 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 98% of the US · lower than 86% of Illinois |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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 | NORTHEAST MOUNT VERNON WATER COMPANY private · serves 5,483 people · EPA ID IL0810010 |
|---|---|
| Water Source | Purchased surface water from MOUNT VERNON |
| Last State Inspection | May 2023 |
| Lead | 6 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, 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 534 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| ClearWave Fiber | 7,000 / 7,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Wisper ISP Fixed Wireless | 400 / 30 |
| GigFire Fixed Wireless | 150 / 130 |
May also be available: Verizon.
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