Cass County property record for 509 4th St, Griswold, IA 51535
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,470 sqft · built 1880 |
| Lot Size | 0.193 acres (8,400 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $2,038 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 360007849001000 |
| Primary APN | 360007849001000 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Stories | 2 Stories |
| Building Area | 1,470 sqft Living Area |
| 1st Floor Area | 593 sqft |
| Basement Area | 296 sqft |
| Unfinished Basement | 296 sqft |
| Game Room | Game Room |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1880 |
|---|---|
| Effective Year Built | Effective 1880 |
| Exterior Material | Vinyl |
| Construction Type | Frame |
| Foundation Type | Concrete |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 8,400 sqft (0.193 acres) |
| Lot Dimensions | 120 ft deep x 70 ft wide |
| Garage Type | Detached |
| Garage Area | 635 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Slab |
|---|---|
| Porch Area | 148 sqft |
| Deck Area | 180 sqft |
| Patio Area | 585 sqft |
| Shed | 1 Shed |
| Shed Area | 126 sqft |
| Cooling System | None |
|---|---|
| Heating System | HVAC |
| Water Source | Commercial |
| Street Address | 509 4TH ST |
|---|---|
| City | GRISWOLD |
| State | IA |
| Zip | 51535-2070 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | (EXC E5'LOT 22)LOTS 20-21-22 BLOCK 11 |
| Legal Subdivision | ORIGINAL TOWN - GRISWOLD |
| Legal Block | 11 |
| Legal Lot Number | 20-22 |
| Jurisdiction | CASS IA |
| Township / Civil Division | PLEASANT |
| Census Block Group | 2 |
| Census Block | 2094 |
| Census Tract | 190200 |
509 4th St is owned and occupied by two individuals.
Source: Cass County records, as of October 20, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 509 4TH ST, GRISWOLD, IA 51535-2070 |
| 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 | 2 Names on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 509 4th St was $2,038 with a homeowner's exemption.
Source: Cass County assessment roll, as of February 9, 2026
| Type | Name |
|---|---|
| State | Iowa |
| County | Cass County |
| Municipality | Griswold City |
| Unified School District | Griswold Community School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $2,038.00 Homeowner's exemption | $139,760 (-) Land $7,210 Building $132,550 | $139,760 (-) Land $7,210 Building $132,550 |
| 2025 | $2,038.00 (+9.33%) Homeowner's exemption | $139,760 Land $7,210 Building $132,550 | $139,760 Land $7,210 Building $132,550 |
| 2024 | $1,864.00 | ||
| 2023 | $124,990 Land $6,300 Building $118,690 | $124,990 Land $6,300 Building $118,690 | |
| 2022 | $1,624.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 509 4th St in Zone X, an area of minimal flood risk, though there have been 14 flood claims nearby since 1998.
Source: FEMA National Flood Hazard Layer, effective May 16, 2017 · 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 |
| Flood Insurance Cost | Premium on File median of 18 policies |
| Nearby Flood Policies | 18 in force |
| Nearby Flood Claims | 14 (1998–2010) |
| Claims Outside the SFHA | 4 of 14 |
| Most Recent Claim | Jun 2010 · rainfall accumulation |
| 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 509 4th 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 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 | GRISWOLD WATER SUPPLY serves 1,008 people · EPA ID IA1528010 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jan 2025 |
| Lead | 3 ppb (2022–2024) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 4 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 191 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Griswold Communications Blue Surge Internet Fiber | 1,000 / 500 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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