Port Huron vs St. Clair: property taxes compared
St. Clair is the cheaper of the two. Its lowest homestead rate is 38.9814 mills against Port Huron's 41.3099 — about $407 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 |
|---|---|---|---|---|---|
| St. Clair | 38.9814 | 26 of 31 | $4,873 | $6,822 | $9,745 |
| Port Huron | 41.3099 | 28 of 31 | $5,164 | $7,229 | $10,327 |
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.
Common questions
Is Port Huron or St. Clair cheaper for property taxes?
St. Clair is the cheaper of the two. Its lowest homestead rate is 38.9814 mills against Port Huron's 41.3099 — about $407 a year less on a $350,000 home at the uncapped taxable value.
How much more are property taxes in Port Huron than St. Clair?
About $407 a year on a $350,000 home — 41.3099 mills versus 38.9814 at each city's lowest homestead rate, using the official 2025 Michigan Treasury millage report.
Do Port Huron and St. Clair share any school districts?
No. Port Huron and St. Clair 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.