Benton County property record for 504 4th Ave, Keystone, IA 52249
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 4 ba · 2,282 sqft · built 1994 |
| Lot Size | 0.569 acres (24,798 sqft) |
| Owner | Individual Name on Record |
| Tax Bill | $3,328 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 09000570 |
| Primary APN | 09000570 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 2,282 sqft Living Area |
| Basement Area | 2,282 sqft |
| Finished Basement | 1,050 sqft |
| Unfinished Basement | 1,232 sqft |
| Game Room | Game Room |
| Flooring | Carpet |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1994 |
|---|---|
| Effective Year Built | Effective 1994 |
| Exterior Material | Vinyl |
| Construction Type | Frame |
| Foundation Type | Concrete |
| Roof Type | Gable |
| Roof Material | Metal |
| Lot Area | 24,798 sqft (0.569 acres) |
| Garage Type | Attached |
| Garage Area | 552 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Patio |
| Porch Area | 52 sqft |
| Deck Area | 314 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 504 4TH AVE |
|---|---|
| City | KEYSTONE |
| State | IA |
| Zip | 52249-9523 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | NORTHVIEW ESTATES LOT 1 BLK 1 |
| Legal Subdivision | NORTHVIEW EST |
| Legal Block | 1 |
| Legal Lot Number | 1 |
| Jurisdiction | BENTON IA |
| Township / Civil Division | KANE |
| Census Block Group | 3 |
| Census Block | 3040 |
| Census Tract | 960600 |
Source: Benton County records, as of October 20, 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 | PO BOX 157, KEYSTONE, IA 52249-0157 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
Source: Benton County assessment roll, as of September 30, 2025
| Type | Name |
|---|---|
| State | Iowa |
| County | Benton County |
| Municipality | Keystone City |
| Unified School District | Benton Community School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $3,328.00 (-6.88%) | $315,800 (-) Land $40,800 Building $275,000 | $315,800 (-) Land $40,800 Building $275,000 |
| 2025 | $315,800 (-1.99%) Land $40,800 Building $275,000 | $315,800 (-1.99%) Land $40,800 Building $275,000 | |
| 2024 | $3,574.00 (+12.39%) | ||
| 2023 | $322,200 (+31.03%) Land $40,800 Building $281,400 | $322,200 (+31.03%) Land $40,800 Building $281,400 | |
| 2022 | $3,180.00 Homeowner's exemption | $245,900 Land $32,600 Building $213,300 | |
| 2021 | $245,900 Land $32,600 Building $213,300 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective September 22, 2023
| 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 99.1% of the US · lower than 91% of Iowa |
|---|---|
| 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 | KEYSTONE WATER SUPPLY serves 599 people · EPA ID IA0640030 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Mar 2026 |
| Lead | 6 ppb (2022–2024) action level 15 ppb |
| Water Quality | Treatment failure resolved · May 2021 Nitrite resolved · Apr 2021 |
|---|---|
| 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. The service area is an EPA estimate; the actual supplier may differ.
Source: FCC Broadband Data Collection, based on 212 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fixed Wireless | 300 / 20 |
| Starlink Satellite | 280 / 30 |
| Keystone Communications Fiber | 250 / 250 |
| GigFire Fixed Wireless | 150 / 130 |
| T-Mobile Fixed Wireless | 100 / 20 |
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