Lake County property record for 518 N Egan Ave, Madison, SD 57042
| Property Type | Single Family Home |
|---|---|
| Details | 6 bd · 19 ba · 1,782 sqft · built 1893 |
| Lot Size | 0.4 acres (17,424 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $5,024 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 21120-00300-000-70 |
| Primary APN | 21120-00300-000-70 |
|---|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 19 Baths |
| Stories | 2 Stories |
| Building Area | 1,782 sqft Living Area |
| Basement Area | 888 sqft |
| Unfinished Basement | 888 sqft |
| Year Built | Built 1893 |
|---|---|
| Effective Year Built | Effective 1893 |
| Lot Area | 17,424 sqft (0.4 acres) |
| Garage Type | Detached |
| Garage Area | 768 sqft |
| Parking Spaces | 3 Parking Spaces |
| Street Address | 518 N EGAN AVE |
|---|---|
| City | MADISON |
| State | SD |
| Zip | 57042-1619 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | N130' NW1/4 BLK 3 KENNEDY'S EXT #1318M |
| Legal Block | 3 |
| Legal Lot Number | 3 |
| Jurisdiction | LAKE SD |
| Township / Civil Division | MADISON |
| Census Block Group | 2 |
| Census Block | 2084 |
| Census Tract | 960202 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the Madison Historic District listed 1976 · 25 contributing resources · NRIS 76001742 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
518 N Egan Ave, a single family home, is owned by two individuals.
Source: Lake County records, as of October 20, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | PO BOX 513, MADISON, SD 57042-0513 |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 518 N Egan Ave was $5,024, down 2.7% from the year before.
Source: Lake County assessment roll, as of October 24, 2025
| Type | Name |
|---|---|
| State | South Dakota |
| County | Lake County |
| Municipality | Madison City |
| Unified School District | Madison Central School District 39-2 (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $5,024.00 (-2.65%) | $291,000 (-) Land $55,500 Building $235,500 | $291,000 Land $55,500 Building $235,500 |
| 2025 | $5,161.00 (+3.95%) | $291,000 (-) Land $55,500 Building $235,500 | |
| 2024 | $4,965.00 (+2.92%) | $291,000 (+6.75%) Land $55,500 Building $235,500 | |
| 2023 | $4,824.00 (+20.57%) | $272,600 Land $48,300 Building $224,300 | |
| 2022 | $4,001.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 518 N Egan 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 November 20, 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 |
| Flood Insurance Cost | Premium on File median of 42 policies |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 42 in force |
| Nearby Flood Claims | 21 (1993–2019) |
| Claims Outside the SFHA | 5 of 21 |
| Most Recent Claim | Sep 2019 · Severe Storms, Tornadoes, And 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 518 N Egan 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 96% of the US · lower than 93% of South Dakota |
|---|---|
| Wildfire Likelihood | Under 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 | MADISON serves 6,191 people · EPA ID SD4600199 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Sep 2024 |
| Lead | 2 ppb (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.
Source: FCC Broadband Data Collection, based on 332 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Midco Cable | 1,250 / 60 |
| Bluepeak Cable · Fiber in parts of the area | 1,000 / 30 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: GigFire, Interlakes Wireless, T-Mobile.
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