Pontotoc County property record for 820 Williams St, Ada, OK 74820
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,031 sqft · built 1973 |
| Lot Size | 0.172 acres (7,529 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $46,000 (Jan 1997) |
| Tax Bill | $645 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 13764 |
| Primary APN | 13764 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,031 sqft Living Area |
| 1st Floor Area | 1,031 sqft |
| Year Built | Built 1973 |
|---|---|
| Effective Year Built | Effective 2006 |
| Architectural Style | Traditional |
| Exterior Material | Brick Veneer |
| Roof Type | Gable |
| Roof Material | Composition Shingle |
| Lot Area | 7,529 sqft (0.172 acres) |
| Lot Dimensions | 119 ft deep x 63 ft wide |
| Garage Type | Attached |
| Garage Area | 308 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Open Porch |
|---|---|
| Patio Area | 96 sqft |
| Shed | 1 Shed |
| Shed Area | 476 sqft |
| Cooling System | Window A/C |
|---|---|
| Heating System | Space Heater |
| Account Number | 13764 |
|---|---|
| Street Address | 820 WILLIAMS ST |
| City | ADA |
| State | OK |
| Zip | 74820-1819 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 10 BLOCK 2 HOWARD THOMPSON |
| Legal Subdivision | HOWARD THOMPSON -ADA SD- SE 27-4-6 |
| Legal Block | 2 |
| Legal Lot Number | 10 |
| Jurisdiction | PONTOTOC OK |
| Township / Civil Division | ADA |
| Census Block Group | 1 |
| Census Block | 1004 |
| Census Tract | 88900 |
Source: Pontotoc County records, as of January 23, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 820 WILLIAMS ST, ADA, OK 74820-1819 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jan 31, 1997 · Amount on Record |
| Deed Sale | Jan 31, 1997 · Amount on Record |
| Deed Book / Page | 1482 / 392 |
| Last Transfer Date | Feb 4, 2025 |
| Transfer Doc | 0003861/14 |
| Record Updated | Jun 8, 2026 |
Source: Pontotoc County assessment roll, as of January 23, 2026
| Type | Name |
|---|---|
| State | Oklahoma |
| Municipality | Ada City |
| County | Pontotoc County |
| Unified School District | Ada Public Schools (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $645.00 (+1.26%) Homeowner's exemption | $7,197 (+2.98%) Land $1,768 Building $5,429 | $109,787 (+37.49%) Land $15,000 Building $94,787 |
| 2024 | $637.00 (+6.7%) Homeowner's exemption | $6,989 (+3.01%) Land $1,717 Building $5,272 | $79,848 (+7.99%) Land $15,000 Building $64,848 |
| 2023 | $597.00 Homeowner's exemption | $6,785 Land $1,710 Building $5,075 | $73,938 Land $15,000 Building $58,938 |
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.
Source: FEMA National Flood Hazard Layer, effective July 17, 2012
| 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 64% of the US · lower than 91% of Oklahoma |
|---|---|
| Wildfire Likelihood | 0.06% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 | ADA serves 22,600 people · EPA ID OK2006201 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Mar 2024 |
| Lead | 2 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | Lead service line inventory Oct 2024 |
| Monitoring and Reporting | 2 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 241 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sparklight Cable | 1,000 / 50 |
| 360 Broadband Fixed Wireless | 400 / 50 |
| Atlink Services Fixed Wireless | 100 / 20 |
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