Natrona County property record for 4403 Chalmers St, Casper, WY 82604
| Property Type | Residential Vacant Land |
|---|---|
| Lot Size | 0.201 acres (8,775 sqft) |
| Owner | Company Name on File |
| Tax Bill | $320 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 3380-01-40-9-00400 |
| Primary APN | 3380-01-40-9-00400 |
|---|---|
| Alternative APNs |
|
| Lot Area | 8,775 sqft (0.201 acres) |
|---|
| Account Number | R0030990 |
|---|---|
| Street Address | 4403 CHALMERS ST |
| City | CASPER |
| State | WY |
| Zip | 82604-2348 |
| Property Category | Residential |
| Property Type | Vacant Land > Residential |
| Legal Description | MOUNTAIN VIEW BLK 16 LOT 21 ALL & 22 W PT |
| Legal Range | 80W |
| Legal Township | 33N |
| Legal Section | 01 |
| Legal Subdivision | MOUNTAIN VIEW |
| Legal Block | 16 |
| Legal Lot Number | 21ALL |
| Jurisdiction | NATRONA WY |
| Township / Civil Division | CASPER |
| Census Block Group | 1 |
| Census Block | 1093 |
| Census Tract | 1200 |
4403 Chalmers St, residential vacant land, is owned by a company.
Source: Natrona County records, as of September 29, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 1521 NOTTINGHAM DR, CASPER, WY 82609-3109 |
| Owner Type | Company |
| Vesting | Company |
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 | Oct 29, 2026 |
The 2026 property tax bill for 4403 Chalmers St was $320.
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 | $320.00 | $4,391 (+20.27%) Land $4,203 Building $188 | $46,220 (+20.26%) Land $44,238 Building $1,982 |
| 2025 | $320.00 | $3,651 Land $3,499 Building $152 | $38,434 Land $36,835 Building $1,599 |
| 2023 | $3,511 Land $3,511 | $36,962 Land $36,962 | |
| 2022 | $255.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4403 Chalmers St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective January 2, 2020
| 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 4403 Chalmers St is low, with 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 80% of the US · lower than 94% 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 240 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Mountain West Technologies Fixed Wireless · Fiber in parts of the area | 125 / 25 |
| Visionary Broadband Fixed Wireless | 100 / 20 |
May also be available: CenturyLink, Verizon.
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