Clayton County property record for 504 1st St, Monona, IA 52159
| Property Type | Warehouse, Storage |
|---|---|
| Details | 2,624 sqft · built 1940 |
| Lot Size | 0.345 acres (15,048 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $224 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 22-36-14-204-006 |
| Primary APN | 22-36-14-204-006 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 2,624 sqft Gross Area |
| 1st Floor Area | 2,624 sqft |
| Year Built | Built 1940 |
|---|---|
| Effective Year Built | Effective 1940 |
| Exterior Material | Metal |
| Construction Type | Frame |
| Roof Material | Metal |
| Lot Area | 15,048 sqft (0.345 acres) |
| Lot Dimensions | 132 ft deep x 114 ft wide |
| Water Source | Commercial |
|---|
| Street Address | 504 1ST ST |
|---|---|
| City | MONONA |
| State | IA |
| Zip | 52159-8280 |
| Property Category | Industrial |
| Property Type | Industrial > Warehouse, Storage |
| Legal Description | DULLS ADDN. LOTS 6 7 BLK 5 PT VACATED ALLEY |
| Legal Subdivision | DULLS ADDN |
| Legal Block | 5 |
| Legal Lot Number | 6,7 |
| Jurisdiction | CLAYTON IA |
| Township / Civil Division | MONONA |
| Census Block Group | 4 |
| Census Block | 4022 |
| Census Tract | 70200 |
504 1st St, an industrial property, is owned by two individuals.
Source: Clayton County records, as of September 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | PO BOX 923, MONONA, IA 52159-0923 |
| 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 | 2 Names on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 504 1st St was $224, up 1.8% from the year before.
Source: Clayton County assessment roll, as of November 3, 2025
| Type | Name |
|---|---|
| State | Iowa |
| County | Clayton County |
| Municipality | Monona City |
| Unified School District | MFL MarMac Community School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $224.00 (+1.82%) | $13,408 Land $10,955 Building $2,453 | $13,408 Land $10,955 Building $2,453 |
| 2024 | $220.00 | ||
| 2023 | $12,125 Land $9,992 Building $2,133 | $12,125 Land $9,992 Building $2,133 | |
| 2022 | $224.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 504 1st St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 28, 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.
Wildfire risk around 504 1st 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 97% of the US · lower than 76% 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 | MONONA MUNICIPAL WATER DEPT serves 1,471 people · EPA ID IA2264095 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Sep 2024 |
| Lead | 4 ppb (2021–2023) 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 62 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Northeast Iowa Telephone Company Fiber | 1,000 / 1,000 |
May also be available: Nextlink.
5G and 4G LTE (outdoors only)
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