LaSalle County property record for 641 Illinois Ave, Ottawa, IL 61350
| Property Type | Single Family Home |
|---|---|
| Details | 1 ba · 2,768 sqft · built 1890 |
| Lot Size | 0.184 acres (8,029 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $4,373 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 21-11-321-003 |
| Primary APN | 21-11-321-003 |
|---|---|
| Alternative APN |
|
| Full Baths | 1 Bath |
|---|---|
| Plumbing Fixtures | 10 Plumbing Fixtures |
| Stories | 2 Stories |
| Building Area | 2,768 sqft Total Area |
| Year Built | Built 1890 |
|---|---|
| Effective Year Built | Effective 1890 |
| Lot Area | 8,029 sqft (0.184 acres) |
| Street Address | 641 ILLINOIS AVE |
|---|---|
| City | OTTAWA |
| State | IL |
| Zip | 61350-2757 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | WALKER'S ADD, E60' LT 2 BLK 6 SEC 11-33-3 |
| Legal Range | 03 |
| Legal Township | 33 |
| Legal Section | 11 |
| Legal Subdivision | WALKERS ADD |
| Legal Block | 6 |
| Legal Lot Number | 2 |
| Jurisdiction | LASALLE IL |
| Township / Civil Division | OTTAWA |
| Census Block Group | 4 |
| Census Block | 4012 |
| Census Tract | 962800 |
Source: LaSalle County records, as of October 20, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 641 ILLINOIS AVE, OTTAWA, IL 61350-2757 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
Source: LaSalle County assessment roll, as of June 29, 2026
| Type | Name |
|---|---|
| State | Illinois |
| County | LaSalle County |
| County Subdivision | Ottawa Township |
| Municipality | Ottawa City |
| Elementary School District | Ottawa Elementary School District 141 (PK - 08) |
| Secondary School District | Ottawa Township High School District 140 (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $4,373.00 (+57.53%) | $54,601 (+23.31%) Land $8,180 Building $46,421 | $163,803 (+23.31%) Land $24,540 Building $139,263 |
| 2024 | $2,776.00 | ||
| 2023 | $44,281 (+10.18%) Land $6,634 Building $37,647 | $132,843 (+10.18%) Land $19,902 Building $112,941 | |
| 2022 | $40,190 Land $8,860 Building $31,330 | $120,570 Land $26,580 Building $93,990 |
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 March 29, 2024 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 2 (40% premium discount) |
| Nearby Flood Policies | 2 in force |
| Nearby Flood Claims | 4 (1984–2020) |
| Claims Outside the SFHA | 2 of 4 |
| Most Recent Claim | May 2020 · rainfall accumulation |
| Claims by Event |
|
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; 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 | OTTAWA serves 18,097 people · EPA ID IL0990800 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jul 2025 |
| Lead | Under 1 ppb (2026–2028) action level 15 ppb |
| Water Quality | Radium resolved · Jul 2023 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 5 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 580 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Surf Internet Fiber | 1,000 / 1,000 |
| Mediacom Xtream Cable · Fixed Wireless · Fiber in parts of the area | 1,000 / 50 |
May also be available: AT&T, Verizon.
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