Hamlin County property record for 18557 450th Ave, Hayti, SD 57241
| Property Type | Single Family Home |
|---|---|
| Lot Size | 5.01 acres (218,236 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $5,718 (2025) |
| APN | 7299 |
| Primary APN | 7299 |
|---|
| Lot Area | 218,236 sqft (5.01 acres) |
|---|
| Street Address | 18557 450TH AVE |
|---|---|
| City | HAYTI |
| State | SD |
| Zip | 57241-5500 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | ADDITION: 0 SECTION/LOT:8 RANGE:53 TWP/BLOCK:114 QUARTER:0 SIXTEENTH:0 SPLIT:074B ACRES/LOT:005.01 LOT 1, J & K KOISTINEN |
| Legal Range | 53 |
| Legal Township | 114 |
| Legal Section | 08 |
| Legal Block | 114 |
| Legal Lot Number | 1 |
| Jurisdiction | HAMLIN SD |
| Township / Civil Division | HAYTI |
| Census Block Group | 1 |
| Census Block | 1156 |
| Census Tract | 955200 |
18557 450th Ave is owned and occupied by two individuals.
Source: Hamlin County records, as of August 18, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 18557 450TH AVE, HAYTI, SD 57241-5500 |
| 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 | Sep 20, 2026 |
The 2025 property tax bill for 18557 450th Ave was $5,718.
Source: Hamlin County assessment roll, as of September 30, 2025
| Type | Name |
|---|---|
| State | South Dakota |
| County | Hamlin County |
| County Subdivision | Hayti Township |
| Unified School District | Hamlin School District 28-3 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $654,997 (-) Land $98,267 Building $556,730 | $654,997 (-) Land $98,267 Building $556,730 | |
| 2025 | $5,718.00 | $654,997 Land $98,267 Building $556,730 | $654,997 Land $98,267 Building $556,730 |
| 2023 | $606,040 Land $90,862 Building $515,178 | ||
| 2022 | $6,011.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA has no flood map on file for 18557 450th Ave.
Source: FEMA National Flood Hazard Layer
| FEMA Flood Zone | Not on file |
|---|
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 18557 450th 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 96% of the US · lower than 93% 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 | SIOUX RURAL WATER SYSTEM private · serves 4,280 people · EPA ID SD4600866 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Oct 2025 |
| Lead | 4 ppb (2025) action level 15 ppb |
| Water Quality | Total trihalomethanes resolved · Apr 2020 |
|---|---|
| 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.
Source: FCC Broadband Data Collection, based on 1 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| ITC Fiber | 1,000 / 1,000 |
| GigFire Fixed Wireless | 150 / 130 |
| T-Mobile Fixed Wireless | 100 / 20 |
5G (outdoors only) and 4G LTE
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