LaSalle County property record for 320 Prairie St, Ottawa, IL 61350
| Property Type | Single Family Home |
|---|---|
| Details | 768 sqft · built 1943 |
| Lot Size | 0.3 acres (13,068 sqft) |
| Owner | Individual Name on Record |
| Tax Bill | $2,513 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 21-01-315-000 |
| Primary APN | 21-01-315-000 |
|---|---|
| Alternative APN |
|
| Plumbing Fixtures | 5 Plumbing Fixtures |
|---|---|
| Stories | 1 Story |
| Building Area | 768 sqft Total Area |
| Year Built | Built 1943 |
|---|---|
| Effective Year Built | Effective 1943 |
| Lot Area | 13,068 sqft (0.3 acres) |
| Street Address | 320 PRAIRIE ST |
|---|---|
| City | OTTAWA |
| State | IL |
| Zip | 61350-1554 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | E75' W255' N166' LOT 9 SW1/4 |
| Legal Lot Number | 9 |
| Jurisdiction | LASALLE IL |
| Township / Civil Division | OTTAWA |
| Census Block Group | 3 |
| Census Block | 3037 |
| Census Tract | 962600 |
Source: LaSalle 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 | Individual Name on Record |
|---|---|
| Mailing Address | 320 PRAIRIE ST, OTTAWA, IL 61350-1554 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name 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 | $2,513.00 (+10.22%) | $31,055 (+23.31%) Land $7,889 Building $23,166 | $93,165 (+23.31%) Land $23,667 Building $69,498 |
| 2024 | $2,280.00 | ||
| 2023 | $25,185 (+10.18%) Land $6,398 Building $18,787 | $75,555 (+10.18%) Land $19,194 Building $56,361 | |
| 2022 | $22,858 Land $5,903 Building $16,955 | $68,574 Land $17,709 Building $50,865 |
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 AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Community Rating System | Class 2 (40% premium discount) |
| Nearby Flood Policies | 6 in force |
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 | Low lower than 99.1% of the US · lower than 94% of Illinois |
|---|---|
| Wildfire Likelihood | Under 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: 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 359 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Mediacom Xtream Cable · Fixed Wireless | 1,000 / 50 |
May also be available: T-Mobile, Verizon.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures