Natrona County property record for 320 S 4th Ave, Mills, WY 82604
| Property Type | Mobile Home |
|---|---|
| Details | 1 ba · 784 sqft · built 1978 |
| Owner | Individual Name on Record |
| Tax Bill | $41 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 0000-00-13-3-90316 |
| Primary APN | 0000-00-13-3-90316 |
|---|---|
| Alternative APNs |
|
| Full Baths | 1 Bath |
|---|---|
| Stories | 1 Story |
| Building Area | 784 sqft Living Area |
| Interior Walls | Paneling |
| Year Built | Built 1978 |
|---|---|
| Effective Year Built | Effective 1978 |
| Architectural Style | Mobile Home |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Metal Frame |
| Roof Type | Flat |
| Roof Material | Metal |
| Deck Area | 80 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | M0001003 |
|---|---|
| Street Address | 320 S 4TH AVE |
| City | MILLS |
| State | WY |
| Zip | 82604-2562 |
| Property Category | Residential |
| Property Type | Residential > Prefabricated > Mobile Home |
| Legal Description | SKYLINE 1978 14 X 56 |
| Jurisdiction | NATRONA WY |
| Township / Civil Division | CASPER |
| Census Block Group | 2 |
| Census Block | 2046 |
| Census Tract | 1200 |
Source: Natrona County records, as of July 7, 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 | 1211 CORNWALL ST, CASPER, WY 82609-3720 |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
Source: Natrona County assessment roll, as of July 7, 2026
| Type | Name |
|---|---|
| State | Wyoming |
| County | Natrona County |
| Municipality | Mills Town |
| Unified School District | Natrona County School District 1 (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $566 (+42.21%) Building $566 | $5,954 (+42.07%) Building $5,954 | |
| 2025 | $41.00 (+41.38%) | ||
| 2023 | $398 Building $398 | $4,191 Building $4,191 | |
| 2022 | $29.00 |
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 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 |
| 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 67% of the US · lower than 89% of Wyoming |
|---|---|
| Wildfire Likelihood | 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 | CITY OF MILLS serves 4,050 people · EPA ID WY5600036 |
|---|---|
| Water Source | Groundwater influenced by surface water |
| Last State Inspection | Aug 2022 |
| Lead | Under 1 ppb (2023–2025) action level 15 ppb |
| Water Quality | Total trihalomethanes resolved · Jan 2025 |
|---|---|
| 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.
Source: FCC Broadband Data Collection, based on 195 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 1,000 |
| Mountain West Technologies Fixed Wireless · Fiber in parts of the area | 300 / 50 |
| Visionary Broadband Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Verizon.
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