Walled Lake is taxed at 40.9991 mills across 1 school district. That is 6.62 mills above the Oakland County median and 8.39 mills above the Southeast Michigan median — the 41st lowest of 52 municipalities in the county, and 169 of 236 region-wide.
| School district | Homestead | Non-homestead | $250,000 | $350,000 | $500,000 |
|---|---|---|---|---|---|
| Walled Lake Consolidated Schools | 40.9991 | 58.6571 | $5,125 | $7,175 | $10,250 |
Homestead (PRE) applies to your primary residence. Non-homestead applies to rentals and second homes. Dollar columns are the annual bill at the uncapped taxable value — half the purchase price — at the homestead rate.
| Municipality | Lowest millage | Annual tax on $350,000 |
|---|---|---|
| Pontiac | 38.3748 | $6,716 |
| Farmington Hills | 39.4568 | $6,905 |
| Northville | 39.9709 | $6,995 |
| Keego Harbor | 40.2912 | $7,051 |
| Walled Lake | 40.9991 | $7,175 |
| South Lyon | 42.1483 | $7,376 |
| Huntington Woods | 43.6735 | $7,643 |
| Farmington | 44.5448 | $7,795 |
| Pleasant Ridge | 46.0062 | $8,051 |
← Keego Harbor (lower) · South Lyon (higher) →
1964
average year built · 1,516 sqft average across 1,254 single-family homes
SEMCOG Buildings_2024
0 ppb
90th percentile for Walled Lake, City Of · below Michigan's 12 ppb action level. Standard sampling — not comparable to systems that sample at the fifth liter.
EGLE / MDHHS water-system monitoring, periods ending 2025-12-31
3.85 pCi/L
average across 362 home tests · 39% above the EPA 4 pCi/L action level — elevated. ZIP 48390.
MDHHS indoor radon test results by ZIP
Lead is measured at the water system, not the house — it cannot tell you whether a specific property has a lead service line. Radon is a ZIP-level test distribution, not a prediction for any one home; the EPA recommends testing every home regardless. Screening information only.
Walled Lake is taxed at 40.9991 mills for a homestead (principal residence) under the official 2025 Michigan Department of Treasury millage report. On a $350,000 home at the uncapped taxable value that is about $7,175 a year.
No. All of Walled Lake sits in Walled Lake Consolidated Schools, so the millage is 40.9991 at every address in the municipality. Your bill still changes after you buy, because it is recalculated on the uncapped taxable value rather than the seller's capped one.
About $7,175 a year at the homestead rate. Michigan taxes the taxable value, not the sale price, and after a sale that value uncaps to roughly half what you paid — so $350,000 is taxed on about $175,000.
Because the figure on the listing is the seller's. Michigan caps annual taxable-value growth while an owner keeps the property, and that cap is removed the year after it sells. The longer the seller owned it, the further their bill sits below yours.
It is the 41 lowest of 52 municipalities in Oakland County and 169 of 236 across the eight-county region — 6.62 mills above the county median.
Michigan taxable value uncaps the year after a sale and resets to roughly half the purchase price. The calculator below is already set to Walled Lake — enter a price and the seller's current taxable value.
When a Michigan home changes hands, its taxable value uncaps the following year and resets to roughly half the sale price. Buyers routinely get blindsided by a bill that's thousands higher than the listing showed. Here's your actual number.
Enter the purchase price and the property's current taxable value (it's on the listing, the assessor's site, or we'll pull it for you).