259 S 4th Ave, Mills (Casper), WY 82604 Property Records

Natrona County property record for 259 S 4th Ave, Mills, WY 82604

Property Summary

Property TypeMobile Home
Details1 ba · 1,536 sqft · built 1973
OwnerIndividual Name on Record
Tax Bill$86 (2025)
Flood ZoneZone X (minimal risk)
APN0000-00-13-3-90262

Property Details

APN / Parcel Number

Primary APN0000-00-13-3-90262
Alternative APNs
  • 41354073115120
  • M0000986

Interior

Full Baths1 Bath
Stories1 Story
Building Area1,536 sqft Living Area
Interior WallsPaneling

Exterior

Year BuiltBuilt 1973
Effective Year BuiltEffective 1973
Architectural StyleMobile Home
Exterior MaterialWood Siding
Roof TypeGable
Roof MaterialComposition Shingle
Deck Area112 sqft
Canopy112 sqft

Utilities, Heating & Cooling

Heating SystemForced Air with A/C

Location & Zoning

Account NumberM0000986
Street Address259 S 4TH AVE
CityMILLS
StateWY
Zip82604-2573
Property CategoryResidential
Property TypeResidential > Prefabricated > Mobile Home
Legal DescriptionMONTROSE II 1973 24 X 64
JurisdictionNATRONA WY
Township / Civil DivisionCASPER
Census Block Group2
Census Block2047
Census Tract1200

Owner

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 RecordIndividual Name on Record
Mailing Address259 S 4TH AVE, MILLS, WY 82604-2573
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Record UpdatedSep 20, 2026

Tax Assessment & Valuation

Source: Natrona County assessment roll, as of July 7, 2026

Property Jurisdictions

TypeName
StateWyoming
CountyNatrona County
MunicipalityMills Town
Unified School DistrictNatrona County School District 1 (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$1,186 (+43.24%) Building $1,186$12,485 (+43.29%) Building $12,485
2025$86.00 (+43.33%)
2023$828 Building $828$8,713 Building $8,713
2022$60.00

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

Source: FEMA National Flood Hazard Layer, effective January 2, 2020 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies1 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.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 67% of the US · lower than 89% of Wyoming
Wildfire Likelihood0.01% annual chance
ExposureNone
beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemCITY OF MILLS
serves 4,050 people · EPA ID WY5600036
Water SourceGroundwater influenced by surface water
Last State InspectionAug 2022
LeadUnder 1 ppb (2023–2025)
action level 15 ppb

Violations Reported to EPA

Water QualityTotal trihalomethanes
resolved · Jan 2025
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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.

Internet Providers

Source: FCC Broadband Data Collection, based on 195 locations within half a mile, as of December 31, 2025

ProviderMax 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.

Nearby Properties on S 4th Ave

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