Sioux County property record for 604 4th Ave, Alton, IA 51003
| Property Type | Single Family Home |
|---|---|
| Details | 1 ba · 680 sqft · built 1959 |
| Lot Size | 0.129 acres (5,625 sqft) |
| Owner | Individual Name on File |
| Last Sale | $59,500 (May 2012) |
| Tax Bill | $1,848 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 23-02-357-007 |
| Primary APN | 23-02-357-007 |
|---|
| Full Baths | 1 Bath |
|---|---|
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 680 sqft Living Area |
| Basement Area | 680 sqft |
| Unfinished Basement | 680 sqft |
| Flooring | Carpet |
| Interior Walls | Plaster |
| Year Built | Built 1959 |
|---|---|
| Effective Year Built | Effective 1959 |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 5,625 sqft (0.129 acres) |
| Lot Dimensions | 75 ft deep x 75 ft wide |
| Garage Type | Attached |
| Garage Area | 384 sqft |
| Parking Spaces | 1 Parking Space |
| Deck Area | 56 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Water Source | Commercial |
| Street Address | 604 4TH AVE |
|---|---|
| City | ALTON |
| State | IA |
| Zip | 51003-8520 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | L8 N25' OF E75' & L9 E75' BLK 39 2ND ADD |
| Legal Subdivision | SECOND ADDITION ALTON |
| Legal Block | 39 |
| Jurisdiction | SIOUX IA |
| Township / Civil Division | NASSAU |
| Census Block Group | 3 |
| Census Block | 3059 |
| Census Tract | 70500 |
604 4th Ave is owned by an individual who bought it in May 2012.
Source: Sioux County records, as of September 1, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 606 11TH ST SE, ORANGE CITY, IA 51041-2314 |
| 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 Sale | May 20, 2012 · Amount on File |
| Deed Sale | May 20, 2012 · Amount on File |
| Prior Sale | Jul 18, 2005 · Amount on File |
| Deed Document Number | 20123037 |
| Deed Book / Page | 2012 / 3037 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 604 4th Ave was $1,848, up 16.8% from the year before.
Source: Sioux County assessment roll, as of October 9, 2025
| Type | Name |
|---|---|
| State | Iowa |
| Municipality | Alton City |
| County | Sioux County |
| Unified School District | MOC-Floyd Valley Community School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $1,848.00 (+16.81%) | $130,610 Land $10,500 Building $120,110 | $130,610 Land $10,500 Building $120,110 |
| 2024 | $1,582.00 | ||
| 2023 | $104,620 (+19.47%) Land $10,500 Building $94,120 | $104,620 Land $10,500 Building $94,120 | |
| 2022 | $1,530.00 | $87,570 Land $10,500 Building $77,070 | |
| 2021 | $87,570 Land $10,500 Building $77,070 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 604 4th Ave in Zone X, an area of minimal flood risk, though there have been 3 flood claims nearby since 2024.
Source: FEMA National Flood Hazard Layer, effective August 1, 2022 · 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 | 2 in force |
| Nearby Flood Claims | 3 (2024) |
| Claims Outside the SFHA | 1 of 3 |
| Most Recent Claim | Jun 2024 · Severe Storms, Flooding, Straight-line Winds, And Tornadoes |
| Claims by Event |
|
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 604 4th Ave 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 99.8% of the US · lower than 98.1% 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 | ALTON MUNICIPAL WATER DEPARTMENT serves 1,248 people · EPA ID IA8403029 |
|---|---|
| Water Source | Purchased groundwater from ORANGE CITY MUNICIPAL WATER DEPARTMENT |
| Last State Inspection | Dec 2025 |
| 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 231 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Westel Systems Fiber | 1,000 / 1,000 |
May also be available: AT&T, Nextlink, Verizon.
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