3831 E 21st St, Casper, WY 82609 Property Records

Natrona County property record for 3831 E 21st St, Casper, WY 82609

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 1,784 sqft · built 1979
Lot Size	0.334 acres (14,538 sqft)
Owner	Individual Name on Record
Tax Bill	$2,239 (2025)
Deeds & Mortgages	Aug 2021 Mortgage Aug 2018 Line of Credit
Flood Zone	Zone X (minimal risk)
APN	`3379-13-21-6-00100`

Property Details

APN / Parcel Number

Primary APN	`3379-13-21-6-00100`
Alternative APNs	`07394008000400` `R0020808`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	4 Rooms
Stories	1 Story
Building Area	1,784 sqft Living Area
Basement Area	1,392 sqft
Finished Basement	816 sqft
Unfinished Basement	576 sqft
Sunroom	Sunroom
Interior Walls	Wallboard/Drywall
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1979
Effective Year Built	Effective 1979
Architectural Style	Bi-Level
Exterior Material	Wood
Construction Type	Frame
Roof Type	Gable
Roof Material	Composition Shingle
Lot Area	14,538 sqft (0.334 acres)
Garage Type	Mixed
Garage Area	1,812 sqft
Parking Spaces	7 Parking Spaces
Pool Type	Spa / Hot Tub (No Pool)

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Forced Air

Location & Zoning

Account Number	R0020808
Street Address	3831 E 21ST ST
City	CASPER
State	WY
Zip	82609-3633
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	PRATT #3 BLK 8 LOT 4
Legal Range	79W
Legal Township	33N
Legal Section	13
Legal Subdivision	PRATT #3
Legal Block	8
Legal Lot Number	4
Jurisdiction	NATRONA WY
Township / Civil Division	CASPER
Census Block Group	2
Census Block	2012
Census Tract	501

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 Record	Individual Name on Record
Mailing Address	3831 E 21ST ST, CASPER, WY 82609-3633
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Et Ux (and Wife)

Deeds, Mortgages & Sale History

Date	Document
Aug 30, 2021	Deed of Trust, Mortgage · Conventional Mortgage SECURITY FIRST BANK
Aug 31, 2018	Deed of Trust, Mortgage · Line of Credit ANB BK

Assessor's Deed Record

Deed Names	Name on Deed
Record Updated	Sep 20, 2026

August 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	NATRONA WY
Property Address	3831 E 21ST ST, CASPER, WY 82609-3633
Transaction Type	Mortgage
Record Updated	Sep 8, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0001110393
Date	Aug 30, 2021
Instrument	1110393

Lender

Name	SECURITY FIRST BANK
Type	Bank
Address	LINCOLN, NE 68516

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	174 Months
Due	Feb 1, 2036

August 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	NATRONA WY
Property Address	3831 E 21ST ST, CASPER, WY 82609-3633
Document Number	0001052896
Instrument Date	Aug 31, 2018
Transaction Type	Mortgage
Record Updated	Sep 24, 2018
Title Company	AMERICAN TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Husband and Wife
Address	3831 E 21ST ST CASPER WY 826093633, CASPER, WY 82609-3633

Mortgage

Document Number	0001052896
Date	Sep 6, 2018
Instrument	1052896

Lender

Name	ANB BK
Type	Bank
Address	CHEYENNE, WY 82001

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	180 Months
Due	Sep 5, 2033

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	Wyoming
County	Natrona County
Municipality	Casper City
Unified School District	Natrona County School District 1 (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$30,718 (+2.39%) Land $6,530 Building $24,188	$475,123 (+6.41%) Land $91,647 Building $383,476
2025	$2,239.00 (-16.02%)	$30,000 (-17.98%) Land $6,529 Building $23,471	$446,512 (+15.97%) Land $91,641 Building $354,871
2023		$36,577 Land $8,273 Building $28,304	$385,016 Land $87,083 Building $297,933
2022	$2,666.00

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 Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Claims	1 (2017)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Apr 2017 · other causes

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 Risk	High above 73% of the US · above 73% of Wyoming
Wildfire Likelihood	0.2% annual chance
Exposure	Direct burnable vegetation

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 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

Violations Reported to EPA

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.

Internet Providers

Source: FCC Broadband Data Collection, based on 186 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 · Fiber in parts of the area	300 / 50
Verizon Fixed Wireless	300 / 20
AT&T Fixed Wireless	100 / 20

May also be available: CenturyLink, Visionary Broadband.

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