Natrona County property record for 4387 Chalmers St, Casper, WY 82604
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,000 sqft · built 1961 |
| Lot Size | 0.217 acres (9,450 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $250,267 (Feb 2026) |
| Tax Bill | $691 (2026) |
| Deeds & Mortgages | Feb 2026 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 3380-01-40-9-00300 |
| Primary APN | 3380-01-40-9-00300 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,000 sqft Living Area |
| Basement Area | 1,000 sqft |
| Finished Basement | 1,000 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1961 |
|---|---|
| Effective Year Built | Effective 1961 |
| Architectural Style | Ranch |
| Exterior Material | Wood |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Composition Shingle |
| Lot Area | 9,450 sqft (0.217 acres) |
| Garage Type | Attached |
| Garage Area | 350 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Slab |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0030989 |
|---|---|
| Street Address | 4387 CHALMERS ST |
| City | CASPER |
| State | WY |
| Zip | 82604-2377 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | MOUNTAIN VIEW BLK 16 LOT 22 E PT & 23 ALL |
| Legal Range | 80W |
| Legal Township | 33N |
| Legal Section | 01 |
| Legal Subdivision | MOUNTAIN VIEW |
| Legal Block | 16 |
| Legal Lot Number | 22EPT |
| Jurisdiction | NATRONA WY |
| Township / Civil Division | CASPER |
| Census Block Group | 1 |
| Census Block | 1093 |
| Census Tract | 1200 |
4387 Chalmers St is owned and occupied by two individuals who bought it in February 2026.
Source: Natrona County records, as of September 29, 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 File |
|---|---|
| Mailing Address | 4387 CHALMERS ST, CASPER, WY 82604-2377 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Tenants by the Entirety |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Feb 20, 2026 · Amount on File |
| Deed Sale | Feb 20, 2026 · Amount on File |
| Deed Document Number | 20261183558 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | NATRONA WY |
| Property Address | 4387 CHALMERS ST, MILLS, WY 82604-2377 |
| Transaction Type | Mortgage |
| Record Updated | Mar 6, 2026 |
| Title Company | AMERICA ONE TITLE AGENCY, AMERICAN TITLE AGENCY |
| Name | Verified Name |
|---|---|
| Address | 305 LARK ST, CASPER, WY 82609-1753 |
| Document Number | 0001183559 |
|---|---|
| Date | Feb 20, 2026 |
| Instrument | 1183559 |
| Name | ROCKET MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Address | DETROIT, MI 48226 |
| Type | VA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 337 Months |
| Due | Mar 1, 2054 |
The 2026 property tax bill for 4387 Chalmers St was $691.
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 | $691.00 | $9,486 (+4%) Land $1,910 Building $7,576 | $237,298 (+7.01%) Land $46,427 Building $190,871 |
| 2025 | $691.00 | $9,121 Land $1,837 Building $7,284 | $221,749 Land $38,666 Building $183,083 |
| 2023 | $17,526 Land $3,618 Building $13,908 | $184,486 Land $38,084 Building $146,402 | |
| 2022 | $1,277.00 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 4387 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 4387 Chalmers St is low, with a 0.02% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 66% of the US · lower than 88% of Wyoming |
|---|---|
| Wildfire Likelihood | 0.02% 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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