Grosse Ile Township vs Romulus: property taxes compared
Grosse Ile Township is the cheaper of the two. Its lowest homestead rate is 44.1934 mills against Romulus's 44.9077 — about $125 a year less on a $350,000 home at the uncapped taxable value.
Side by side
| Municipality | Homestead mills | County rank | $250,000 | $350,000 | $500,000 |
|---|---|---|---|---|---|
| Grosse Ile Township | 44.1934 | 14 of 43 | $5,524 | $7,734 | $11,048 |
| Romulus | 44.9077–50.6896 | 15 of 43 | $5,613 | $7,859 | $11,227 |
Dollar columns are the annual homestead bill at the uncapped taxable value — roughly half the purchase price. Multi-district cities show their full rate range; the rank and dollar figures use each city's lowest district.
What the difference costs over time
Held for 10 years, that gap compounds to $1,250 at today's rates on a $350,000 home — before any millage change. At $250,000 the annual difference is $89; at $500,000 it is $179. The gap scales with price, so it matters more at the top of each city's market than at the bottom.
Choosing the district can matter more than choosing the city. Inside Romulus alone the homestead rate runs 44.9077 to 50.6896 mills — a $1,012 annual swing on a $350,000 home, wider than the $125 gap between the two cities. Two houses on the same street can sit either side of that line.
All figures use each city's lowest homestead rate at the uncapped taxable value — roughly half the purchase price — from the Michigan Department of Treasury's 2025 Total Rates report. A non-homestead property adds about 18 mills on top in either city.
Common questions
Is Grosse Ile Township or Romulus cheaper for property taxes?
Grosse Ile Township is the cheaper of the two. Its lowest homestead rate is 44.1934 mills against Romulus's 44.9077 — about $125 a year less on a $350,000 home at the uncapped taxable value.
How much more are property taxes in Romulus than Grosse Ile Township?
About $125 a year on a $350,000 home — 44.9077 mills versus 44.1934 at each city's lowest homestead rate, using the official 2025 Michigan Treasury millage report.
Do Grosse Ile Township and Romulus share any school districts?
No. Grosse Ile Township and Romulus draw from different school districts, so a move between them changes both the city millage and the school levy underneath it.
Will my bill match what the listing shows?
Usually not, in either city. Michigan taxable value uncaps the year after a sale and resets to roughly half the purchase price, so the seller's capped bill on the listing is almost always lower than what you will pay.