St. Clair County property record for 505 Helen St, Algonac, MI 48001
| Property Type | Single Family Home |
|---|---|
| Details | 1 ba · 624 sqft |
| Lot Size | 0.12 acres (5,227 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $1,234 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 74-01-135-0043-000 |
| Primary APN | 74-01-135-0043-000 |
|---|
| Full Baths | 1 Bath |
|---|---|
| Stories | 1 Story |
| Building Area | 624 sqft Living Area |
| 1st Floor Area | 624 sqft |
| Architectural Style | Ranch |
|---|---|
| Lot Area | 5,227 sqft (0.12 acres) |
| Lot Dimensions | 100 ft deep x 50 ft wide |
| Garage Area | 1,152 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Forced Air with A/C |
|---|
| Street Address | 505 HELEN ST |
|---|---|
| City | ALGONAC |
| State | MI |
| Zip | 48001-1692 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R-3 |
| Legal Description | LOT 801 SUPV ROY T GILBERTS PLAT NO 9 SEC 10 T2N R16E |
| Legal Range | 16E |
| Legal Township | 02N |
| Legal Section | 10 |
| Legal Subdivision | SUPRVRS ROY T GILBERTS 9-ALGON |
| Legal Lot Number | 801 |
| Legal Unit | 801 |
| Jurisdiction | SAINT CLAIR MI |
| Township / Civil Division | ALGONAC |
| Census Block Group | 4 |
| Census Block | 4026 |
| Census Tract | 649000 |
505 Helen St is owned and occupied by an individual.
Source: St. Clair County records, as of September 17, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 505 HELEN ST, ALGONAC, MI 48001-1692 |
| 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 | Name on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 505 Helen St was $1,234 with a homeowner's exemption, up 2.2% from the year before.
Source: St. Clair County assessment roll, as of September 17, 2026
| Type | Name |
|---|---|
| State | Michigan |
| Municipality | Algonac City |
| County | St. Clair County |
| Unified School District | Algonac Community School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $38,400 (+2.13%) | $76,800 | |
| 2025 | $1,234.00 (+2.24%) Homeowner's exemption | $37,600 | |
| 2024 | $1,207.00 | $75,200 | |
| 2023 | $33,100 | ||
| 2022 | $1,067.00 | $66,200 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 505 Helen St in Zone AE, a high-risk flood area; flood insurance is required for federally backed loans.
Source: FEMA National Flood Hazard Layer, effective July 20, 2022 · 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 | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on File median of 97 policies |
| Nearby Flood Policies | 97 in force |
| Nearby Flood Claims | 15 (1985–2019) |
| Claims Outside the SFHA | 5 of 15 |
| Most Recent Claim | Aug 2019 · river or lake flooding |
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.
The area around 505 Helen St has no burnable land within ember reach, so its wildfire risk is not rated.
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 | CITY OF ALGONAC serves 4,110 people · EPA ID MI0000110 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2026 |
| Lead | 3 ppb (2024–2026) 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 224 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
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