Stephens County property record for 421 N 20th St, Duncan, OK 73533
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,043 sqft · built 1956 |
| Lot Size | 0.216 acres (9,397 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $489 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 22358 |
| Primary APN | 22358 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,043 sqft Living Area |
| Storm Shelter | Storm Shelter |
| Storm Shutters | Storm Shutters |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1956 |
|---|---|
| Effective Year Built | Effective 1995 |
| Architectural Style | Traditional |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Foundation Type | Footing |
| Roof Type | Hip |
| Roof Material | Composition Shingle |
| Lot Area | 9,397 sqft (0.216 acres) |
| Garage Type | Attached |
| Garage Area | 220 sqft |
| Parking Spaces | 1 Parking Space |
| Pool Type | Above-Ground Pool |
| Porch | Slab |
| Porch Area | 308 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Account Number | 22358 |
|---|---|
| Street Address | 531 N 20TH ST |
| City | DUNCAN |
| State | OK |
| Zip | 73533-0707 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | BLK 1 LT 7 WHISENANT #1 (421 N 20TH) |
| Legal Range | 07W |
| Legal Township | 01N |
| Legal Section | 31 |
| Legal Subdivision | WHISENANT #1 |
| Legal Block | 1 |
| Legal Lot Number | 7 |
| Jurisdiction | STEPHENS OK |
| Township / Civil Division | DUNCAN |
| Census Block Group | 3 |
| Census Block | 3026 |
| Census Tract | 101 |
421 N 20th St is owner-occupied and held in a trust since November 2025.
Source: Stephens County records, as of September 23, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 531 N 20TH ST, DUNCAN, OK 73533-0707 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Family Revocable Trust |
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 | 2 Names on Deed |
|---|---|
| Last Transfer Date | Nov 6, 2025 |
| Transfer Doc | 0000010104 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 421 N 20th St was $489, up 4.7% from the year before.
Source: Stephens County assessment roll, as of March 23, 2026
| Type | Name |
|---|---|
| State | Oklahoma |
| County | Stephens County |
| Municipality | Duncan City |
| Unified School District | Duncan Public Schools (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $5,807 (-) Land $879 Building $4,928 | $52,791 (-18.59%) Land $7,987 Building $44,804 | |
| 2025 | $489.00 (+4.71%) | $5,807 (+10.23%) Land $879 Building $4,928 | $64,847 (+5.09%) Land $7,987 Building $56,860 |
| 2024 | $467.00 (+8.6%) | $5,268 (-) Land $879 Building $4,389 | $61,705 (+1.79%) Land $7,987 Building $53,718 |
| 2023 | $430.00 | $5,268 Land $879 Building $4,389 | $60,621 Land $7,987 Building $52,634 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 421 N 20th St in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2015.
Source: FEMA National Flood Hazard Layer, effective September 29, 2010 · 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 | 3 in force |
| Nearby Flood Claims | 1 (2015) |
| Most Recent Claim | May 2015 · Severe Storms, Tornadoes, Straight-line Winds, And Flooding |
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 risk around 421 N 20th St is low, with less than 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 99.1% of the US · lower than 99.2% of Oklahoma |
|---|---|
| Wildfire Likelihood | Under 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 | DUNCAN PUBLIC UTILITIES AUTHORITY serves 23,000 people · EPA ID OK1010809 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Sep 2024 |
| Lead | Under 1 ppb (2022–2024) action level 15 ppb |
| Water Quality | Total trihalomethanes not recorded as resolved · Jan 2023 Haloacetic acids resolved · Jul 2017 Turbidity resolved · Dec 2016 |
|---|---|
| Treatment and Procedure | Organic carbon removal Oct 2024 |
| Monitoring and Reporting | 6 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 476 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Dobson Fiber Fiber | 10,000 / 10,000 |
| Sparklight Cable | 1,000 / 50 |
| Nextlink Fixed Wireless | 500 / 100 |
| 360 Broadband Fixed Wireless | 400 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures