Buena Vista County property record for 509 Johnson St, Alta, IA 51002
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 1.5 ba · 1,902 sqft · built 1900 |
| Lot Size | 0.193 acres (8,400 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $2,358 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 09-26-186-003 |
| Primary APN | 09-26-186-003 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,902 sqft Living Area |
| 1st Floor Area | 700 sqft |
| Flooring | Carpet |
| Interior Walls | Plaster |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1900 |
|---|---|
| Effective Year Built | Effective 1900 |
| Exterior Material | Vinyl |
| Construction Type | Frame |
| Foundation Type | Block |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 8,400 sqft (0.193 acres) |
| Lot Dimensions | 140 ft deep x 60 ft wide |
| Garage Type | Detached |
| Garage Area | 624 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Slab |
|---|---|
| Porch Area | 195 sqft |
| Deck Area | 582 sqft |
| Patio Area | 582 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Water Source | Commercial |
| Street Address | 509 JOHNSON ST |
|---|---|
| City | ALTA |
| State | IA |
| Zip | 51002-1448 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | 08-31 ALTA CORP. |
| Legal Subdivision | SEVENTH ADDITION TO THE TOWN OF ALTA |
| Jurisdiction | BUENA VISTA IA |
| Township / Civil Division | NOKOMIS |
| Census Block Group | 2 |
| Census Block | 2045 |
| Census Tract | 960600 |
509 Johnson St is owned and occupied by an individual who acquired it in March 2025.
Source: Buena Vista County records, as of October 20, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 509 JOHNSON ST, ALTA, IA 51002-1448 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 | Name on Deed |
|---|---|
| Last Transfer Date | Mar 6, 2025 |
| Transfer Doc | 0000000495 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 509 Johnson St was $2,358, down 6.7% from the year before.
Source: Buena Vista County assessment roll, as of October 6, 2025
| Type | Name |
|---|---|
| State | Iowa |
| Municipality | Alta City |
| County | Buena Vista County |
| Unified School District | Alta-Aurelia Community School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $163,300 (+2.5%) Land $21,400 Building $141,900 | $163,300 (+2.5%) Land $21,400 Building $141,900 | |
| 2025 | $2,358.00 (-6.65%) | $159,310 Land $12,240 Building $147,070 | $159,310 Land $12,240 Building $147,070 |
| 2024 | $2,526.00 | ||
| 2023 | $159,310 (+30.97%) Land $12,240 Building $147,070 | $159,310 Land $12,240 Building $147,070 | |
| 2022 | $2,104.00 | $121,640 Land $12,240 Building $109,400 | |
| 2021 | $121,640 Land $12,240 Building $109,400 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 509 Johnson St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 13, 2022
| 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.
The area around 509 Johnson St has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 | ALTA MUNICIPAL WATER PLANT serves 2,087 people · EPA ID IA1108025 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Nov 2023 |
| Lead | Under 1 ppb (2022–2024) action level 15 ppb |
| 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. The service area is an EPA estimate; the actual supplier may differ.
Source: FCC Broadband Data Collection, based on 358 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Mediacom Xtream Cable · Fiber in parts of the area | 1,000 / 50 |
| Northwest Communications Fixed Wireless | 100 / 20 |
May also be available: Nextlink, T-Mobile.
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