Day County property record for 511 Kosciusko Ave, Grenville, SD 57239
| Property Type | Other |
|---|---|
| Owner | Company Name on File |
| Flood Zone | Zone X (minimal risk) |
| APN | 73.06.0030 |
| Primary APN | 73.06.0030 |
|---|
| Street Address | 511 KOSCIUSKO AVE |
|---|---|
| City | GRENVILLE |
| State | SD |
| Zip | 57239 |
| Property Category | Other |
| Property Type | Other > Miscellaneous |
| Legal Description | LOT 3 LYING S OF HWY AUDITORS SUB-DIV SEC 13 & 14 123-55 |
| Legal Subdivision | GREN TOWN |
| Legal Lot Number | 3 |
| Jurisdiction | DAY SD |
| Township / Civil Division | GRENVILLE |
| Census Block Group | 1 |
| Census Block | 1108 |
| Census Tract | 952900 |
511 Kosciusko Ave is owned by a company and is owner-occupied.
Source: Day County records, as of January 1, 2026
| Owner of Record | Company Name on File |
|---|---|
| Occupancy | Owner Occupied |
| Owner Type | Company |
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 |
|---|---|
| Record Updated | Jun 8, 2026 |
Source: Day County assessment roll, as of November 1, 2025
| Type | Name |
|---|---|
| State | South Dakota |
| County | Day County |
| Municipality | Grenville Town |
| Unified School District | Webster School District 18-5 (PK - 12) |
| Year | Tax Bill |
|---|---|
| 2023 | Additional exemption filed |
FEMA maps place 511 Kosciusko Ave in Zone X, an area of minimal flood risk, within 100 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective March 14, 2024 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 3 in force |
| Nearby Flood Claims | 80 (1995–2011) |
| Claims Outside the SFHA | 40 of 80 |
| Most Recent Claim | Jul 2011 · Flooding |
| 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 511 Kosciusko Ave is low, with 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 93% of the US · lower than 89% of South Dakota |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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 | GRENVILLE serves 48 people · EPA ID SD4600146 |
|---|---|
| Water Source | Purchased surface water from WEB WATER DEVELOPMENT ASSOCIATION |
| Last State Inspection | Nov 2023 |
| Lead | 1 ppb (2023) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 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.
Source: FCC Broadband Data Collection, based on 23 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Venture Communications Cooperative Fiber | 1,000 / 1,000 |
May also be available: Verizon.
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