Lake County property record for 118 N Union Ave, Madison, SD 57042
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 6 ba · 746 sqft · built 1919 |
| Lot Size | 0.11 acres (4,792 sqft) |
| Owner | Individual Name on Record |
| Tax Bill | $833 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 21040-01000-140-20 |
| Primary APN | 21040-01000-140-20 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 6 Baths |
| Stories | 1 Story |
| Building Area | 746 sqft Living Area |
| Basement Area | 676 sqft |
| Unfinished Basement | 676 sqft |
| Year Built | Built 1919 |
|---|---|
| Effective Year Built | Effective 1919 |
| Lot Area | 4,792 sqft (0.11 acres) |
| Garage Type | Detached |
| Garage Area | 240 sqft |
| Street Address | 118 N UNION AVE |
|---|---|
| City | MADISON |
| State | SD |
| Zip | 57042-2807 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | S50' N100' LOTS 13-14 BLK 10 TOWN PROP 1ST #410M |
| Legal Block | 10 |
| Legal Lot Number | 13-14 |
| Jurisdiction | LAKE SD |
| Township / Civil Division | MADISON |
| Census Block Group | 2 |
| Census Block | 2032 |
| Census Tract | 960201 |
Source: Lake County records, as of September 23, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 118 N UNION AVE, MADISON, SD 57042-2807 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
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 | $833.00 (-6.19%) | $57,800 (-) Land $15,400 Building $42,400 | $57,800 Land $15,400 Building $42,400 |
| 2025 | $888.00 (+5.21%) | $57,800 (-) Land $15,400 Building $42,400 | |
| 2024 | $844.00 (+4.71%) | $57,800 (+7.43%) Land $15,400 Building $42,400 | |
| 2023 | $806.00 (+25.35%) | $53,800 Land $13,400 Building $40,400 | |
| 2022 | $643.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 6 in force |
| Nearby Flood Claims | 3 (2019) |
| 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 | 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 376 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 |
| Starlink Satellite | 280 / 30 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T, Interlakes Wireless.
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