Natrona County property record for 434 S Illinois Ave, Casper, WY 82609
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 1,900 sqft · built 1960 |
| Lot Size | 0.236 acres (10,260 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $3,139 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 3379-11-22-4-00300 |
| Primary APN | 3379-11-22-4-00300 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,900 sqft Living Area |
| Basement Area | 1,900 sqft |
| Finished Basement | 1,536 sqft |
| Unfinished Basement | 364 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1960 |
|---|---|
| Effective Year Built | Effective 1960 |
| Architectural Style | Ranch |
| Exterior Material | Brick/Stone |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Composition Shingle |
| Lot Area | 10,260 sqft (0.236 acres) |
| Garage Type | Basement |
| Garage Area | 364 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Slab |
|---|---|
| Deck Area | Deck Area |
| Shed | 1 Shed |
| Shed Area | 240 sqft |
| Storage Building | 160 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0017929 |
|---|---|
| Street Address | 434 S ILLINOIS AVE |
| City | CASPER |
| State | WY |
| Zip | 82609-2502 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | CHEVY CHASE LOT 4 N 46 & 5 S 39.5 |
| Legal Range | 79W |
| Legal Township | 33N |
| Legal Section | 11 |
| Legal Subdivision | CHEVY CHASE |
| Legal Lot Number | 4N46' |
| Jurisdiction | NATRONA WY |
| Township / Civil Division | CASPER |
| Census Block Group | 3 |
| Census Block | 3011 |
| Census Tract | 400 |
434 S Illinois Ave is held in a trust since November 2012.
Source: Natrona County records, as of September 29, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 222 COLORADO AVE, CASPER, WY 82609-1702 |
| Owner Type | Company |
| Vesting | Trust, Living Trust |
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 |
|---|---|
| Last Transfer Date | Nov 17, 2012 |
| Transfer Doc | 0000941804 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 434 S Illinois Ave was $3,139.
Source: Natrona County assessment roll, as of July 7, 2026
| Type | Name |
|---|---|
| State | Wyoming |
| County | Natrona County |
| Municipality | Casper City |
| Unified School District | Natrona County School District 1 (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $3,139.00 (-0.03%) | $43,081 (+36.81%) Land $4,879 Building $38,202 | $492,440 (-3.25%) Land $51,353 Building $441,087 |
| 2025 | $3,140.00 (+38.88%) | $31,489 Land $3,725 Building $27,764 | $509,005 Land $52,285 Building $456,720 |
| 2024 | $2,261.00 | ||
| 2023 | $40,127 Land $5,341 Building $34,786 | $422,389 Land $56,225 Building $366,164 | |
| 2022 | $2,924.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 434 S Illinois Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective January 2, 2020 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 1 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.
The area around 434 S Illinois Ave has no burnable land within ember reach, so its wildfire risk is not rated.
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 | CITY OF CASPER serves 59,000 people · EPA ID WY5601415 |
|---|---|
| Water Source | Purchased surface water from CENTRAL WY REGIONAL WATER SYSTEM JPB |
| Last State Inspection | Jun 2022 |
| Lead | 1 ppb (2024–2026) 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 456 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Bluepeak Fiber | 5,000 / 5,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Mountain West Technologies Fixed Wireless | 300 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
| Visionary Broadband Fixed Wireless · Fiber in parts of the area | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures