Troy property taxes & housing data
Troy is taxed at 30.6309–42.2594 mills across 7 school districts. That is 3.75 mills below the Oakland County median and 1.97 mills below the Southeast Michigan median — the 15th lowest of 52 municipalities in the county, and 101 of 236 region-wide.
Rates by school district
| School district | Homestead | Non-homestead | $250,000 | $350,000 | $500,000 |
|---|---|---|---|---|---|
| Royal Oak City School District | 30.6309 | 47.6000 | $3,829 | $5,360 | $7,658 |
| Bloomfield Hills School District | 34.2337 | 47.8501 | $4,279 | $5,991 | $8,558 |
| Avondale School District | 34.5094 | 52.5094 | $4,314 | $6,039 | $8,627 |
| Birmingham City School District | 34.8300 | 48.2094 | $4,354 | $6,095 | $8,708 |
| Warren Consolidated Schools | 35.9346 | 50.7972 | $4,492 | $6,289 | $8,984 |
| Troy School District | 36.0430 | 51.4634 | $4,505 | $6,308 | $9,011 |
| Lamphere Public School District | 42.2594 | 47.2025 | $5,282 | $7,395 | $10,565 |
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.
How Troy compares in Oakland County
| Municipality | Lowest millage | Annual tax on $350,000 |
|---|---|---|
| Orion Township | 29.0657 | $5,086 |
| Orchard Lake | 29.8531 | $5,224 |
| Lake Angelus | 30.3952 | $5,319 |
| Waterford Township | 30.4079 | $5,321 |
| Troy | 30.6309 | $5,360 |
| Rochester Hills | 30.8553 | $5,400 |
| Brandon Township | 30.9213 | $5,411 |
| West Bloomfield Township | 31.4531 | $5,504 |
| Bloomfield Township | 31.5648 | $5,524 |
← Waterford Township (lower) · Rochester Hills (higher) →
For sale in Troy right now
185 active listings in Troy — the 6 newest below. Remember: every one of them uncaps the year after closing, so the bill you should budget is the uncapped one above, not the seller's.
$364,900
1119 Winthrop Drive · Troy
4 bd · 2 ba · 1,792 sqft
Listing courtesy of Keller Williams Lakeside
$355,000
1520 Brentwood Drive · Troy
3 bd · 3 ba · 2,192 sqft
Listing courtesy of Century 21 Professionals Livonia
$619,000
2032 Kristin Drive · Troy
4 bd · 3 ba · 2,350 sqft
Listing courtesy of The Agency Hall & Hunter
$690,000
5908 Willow Grove DR · Troy
3 bd · 2 ba · 1,850 sqft
Listing courtesy of Vanguard Realty Group LLC
$720,000
5872 Willow Grove DR · Troy
3 bd · 3 ba · 2,100 sqft
Listing courtesy of Vanguard Realty Group LLC
$339,000
1405 Raliegh Place · Troy
2 bd · 3 ba · 1,867 sqft
Listing courtesy of RE/MAX Showcase Homes
IDX provided courtesy of Realcomp II Ltd. via Match Realty LLC and MiRealSource, Realcomp II Ltd, ©2026 Realcomp II Ltd. Shareholders. The accuracy of all information, regardless of source, is not guaranteed or warranted. All information should be independently verified. Listings refreshed 2026-09-04T09:58-04:00; refreshed at least twice daily.
Waterfront in Troy: Rouge River — recorded sale prices and all-sports status for the lake.
Compare Troy with another community
Troy has 18 side-by-side comparisons, 15 of them with a community that shares a school district — same schools, different bill. Dollar columns are the annual homestead bill on a $350,000 home at the uncapped taxable value, and the last column is the difference against Troy.
| Comparison | Their lowest millage | Annual tax on $350,000 | vs Troy |
|---|---|---|---|
| Troy vs Warren · same schools | 51.2043 | $8,961 | +$3,600 |
| Troy vs Southfield · same schools | 50.6993 | $8,872 | +$3,512 |
| Troy vs Madison Heights · same schools | 46.2962 | $8,102 | +$2,741 |
| Troy vs Huntington Woods · same schools | 43.6735 | $7,643 | +$2,282 |
| Troy vs Sterling Heights · same schools | 38.9277 | $6,812 | +$1,452 |
| Troy vs Birmingham · same schools | 38.1422 | $6,675 | +$1,314 |
| Troy vs Royal Oak · same schools | 37.9610 | $6,643 | +$1,283 |
| Troy vs Berkley · same schools | 36.3012 | $6,353 | +$992 |
| Troy vs Southfield Township · same schools | 25.6381 | $4,487 | −$874 |
| Troy vs Bloomfield Hills · same schools | 35.4018 | $6,195 | +$835 |
| Troy vs Auburn Hills · same schools | 32.4857 | $5,685 | +$325 |
| Troy vs Bloomfield Township · same schools | 31.5648 | $5,524 | +$163 |
| Troy vs West Bloomfield Township · same schools | 31.4531 | $5,504 | +$144 |
| Troy vs Orchard Lake · same schools | 29.8531 | $5,224 | −$136 |
| Troy vs Brandon Township | 30.9213 | $5,411 | +$51 |
| Troy vs Lake Angelus | 30.3952 | $5,319 | −$41 |
| Troy vs Rochester Hills · same schools | 30.8553 | $5,400 | +$39 |
| Troy vs Waterford Township | 30.4079 | $5,321 | −$39 |
What it's like to own in Troy
Beyond the tax rate, three things shape what owning in Troy actually costs: the age of the homes, what the water utility reports at the tap, and what local air testing has turned up. Each figure below carries the date of the survey it came from.
Housing stock
1978
average year built · 2,224 sqft average across 24,568 single-family homes
SEMCOG Buildings_2024
Lead in drinking water
0 ppb
90th percentile for Troy · 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
Radon
2.23 pCi/L
average across 1,057 home tests · 12% above the EPA 4 pCi/L action level — elevated. ZIPs 48085, 48083, 48098, 48084.
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.
Common questions
What is the property tax rate in Troy, Michigan?
Troy is taxed at 30.6309–42.2594 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 $5,360 a year.
Does the tax rate change by address within Troy?
Yes. Troy spans 7 school districts and the rate runs from 30.6309 to 42.2594 mills depending on the district your address falls in — a difference of $2,035 a year on a $350,000 home. The district table above lists every rate.
How much are property taxes on a $350,000 home in Troy?
About $5,360 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.
Why is the tax bill on a Troy listing lower than what I would pay?
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.
How does Troy compare with the rest of Oakland County?
It is the 15 lowest of 52 municipalities in Oakland County and 101 of 236 across the eight-county region — 3.75 mills below the county median.
Is down payment assistance available for homes in Troy?
Likely, but verify per program: 92% of the 651 Troy sales evaluated by Down Payment Resource over the last 12 months were flagged as potentially matching at least one assistance program. The flag is an indicator, not a promise — compare the programs and check your numbers.
What your Troy taxes become after you buy
Michigan taxable value uncaps the year after a sale and resets to roughly half the purchase price. The calculator below is already set to Troy — enter a price and the seller's current taxable value.
Uncapping calculator
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.
What will your tax bill be after closing?
Your taxable value uncaps the year after closing and resets to roughly half the purchase price — so a $350,000 home is taxed on about $175,000, whatever the seller was paying. Enter the price and the current taxable value below.