Green Lake County property record for 435 W John St, Markesan, WI 53946
| Property Type | Vacant Land |
|---|---|
| Lot Size | 1.79 acres (77,972 sqft) |
| Owner | Company Name on Record |
| Flood Zone | Zone AE (high risk) |
| APN | 251-00459-0100 |
| Primary APN | 251-00459-0100 |
|---|
| Lot Area | 77,972 sqft (1.79 acres) |
|---|
| Street Address | 435 W JOHN ST |
|---|---|
| City | MARKESAN |
| State | WI |
| Zip | 53946-7113 |
| Property Category | Vacant Land |
| Property Type | Vacant Land > Uncategorized |
| Legal Description | LOT 1 CERTIFIED SURVEY MAP 3444 V19 |
| Legal Lot Number | 1 |
| Jurisdiction | GREEN LAKE WI |
| Township / Civil Division | MARKESAN |
| Census Block Group | 3 |
| Census Block | 3000 |
| Census Tract | 100600 |
Source: Green Lake County records, as of February 16, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 150 S BRIDGE ST, MARKESAN, WI 53946-8045 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Jun 8, 2026 |
Source: Green Lake County assessment roll, as of January 1, 2025
| Type | Name |
|---|---|
| State | Wisconsin |
| County | Green Lake County |
| Municipality | Markesan City |
| Unified School District | Markesan School District (PK - 12) |
| Year | Tax Bill |
|---|---|
| 2025 | Homeowner's exemption |
| 2023 | Homeowner's exemption |
Source: FEMA National Flood Hazard Layer, effective June 4, 2014 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | Yes |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Nearby Flood Policies | 2 in force |
| Nearby Flood Claims | 3 (2008–2019) |
| Claims Outside the SFHA | 1 of 3 |
| Most Recent Claim | Mar 2019 · river or lake 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 | Low lower than 94% of the US · lower than 85% of Wisconsin |
|---|---|
| Wildfire Likelihood | 0.02% 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 | MARKESAN WATERWORKS serves 1,365 people · EPA ID WI4240218 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Nov 2023 |
| Lead | 7 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. The service area is an EPA estimate; the actual supplier may differ.
Source: FCC Broadband Data Collection, based on 103 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 1,000 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Bertram Communications, Brightspeed.
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