Port Huron is the largest city in St. Clair County and one of Michigan's great water towns, sitting where Lake Huron narrows into the St. Clair River across from Sarnia, Ontario. The Blue Water Bridge arcs over the water to Canada here, freighters slide past the foot of the river, and each July the Port Huron to Mackinac sailboat race sends a fleet north up the lake. Fort Gratiot Light, Michigan's oldest lighthouse, marks the spot, and Thomas Edison spent his boyhood in town.
At a glance
State millage data currently shows about 41.3 mills for a primary home. One school district appears in the rate data, but parcel tax districts and PRE status still decide the final bill.
Practical directory
Common home and paperwork paths
Start with the Michigan guide that matches the job. For a parcel, bill, permit, or recorded document in Port Huron, confirm the final answer with the local or county office shown farther down this page.
- Delinquent property tax Get help before the redemption date Find the foreclosing unit, exact payoff, assistance programs, counseling, and legal-help paths.
- Utility shutoff or past-due bill Work the utility-help sequence Call the provider, apply for emergency relief, use 2-1-1, and ask about household protections.
- Essential home repair Find repair or weatherization help Match the repair, household, service area, and rural status to programs that may actually fit.
- Home and estate Handle a home after someone dies Keep the property stable, find the deed and authority to act, and choose the right estate or title path.
- Manufactured home Transfer or repair the home title Start with the Secretary of State path for a sale, missing title, lien, or legal affixture to land.
- Permits and repairs Check a permit or contractor Find who enforces the work in Port Huron, what to put in writing, and where to check a license.
Who handles what
Send the question to the right office
Start local for a parcel, tax bill, permit, or housing rule. Move to the county or a district when the record or service covers more than one community.
-
Assessment, PRE, current tax bill, or Board of Review
Port Huron assessor or treasurer
Start with the Port Huron office shown on the assessment notice or tax bill. The assessor handles value and exemptions; the treasurer handles the current summer or winter bill.
Michigan property-tax basics -
Rental registration, building permit, or code problem
Port Huron building, rental, or code office
The enforcing agency can be the municipality, county, or state, and electrical, mechanical, and plumbing work may go to different places.
Find the official permit jurisdiction ↗ Michigan homeowner guide -
Marriage license, local record, deed, or delinquent tax
Saint Clair County offices
The clerk, register of deeds, and county treasurer handle different parts of this work. The county page separates them for you.
Open the official Saint Clair County site ↗ Getting married in Michigan -
Private well, septic system, local health, or trial court
County, district, or court finder
A health district or court can serve more than one community. The county page links to the official statewide finders.
Find the local health department ↗ Michigan well and septic guide
The practical stuff
Buying, owning, or selling in Port Huron
The seller's tax bill may not be your tax bill.
2025 property-tax snapshot
- Primary home (PRE)
- 41.3099 mills - 41.3099 mills
- Other property / non-homestead
- 59.3099 mills - 59.3099 mills
- School districts available
- 1 in Port Huron
One mill means $1 per $1,000 of Taxable Value. Rate rows come from the official 2025 Michigan Treasury report. Last reviewed July 12, 2026.
What these local words mean
- Primary home (PRE)
- A home you own and live in as your main home. PRE stands for Principal Residence Exemption and can lower the school operating tax.
- Non-homestead
- Property that is not treated as the owner's main home, such as a rental, vacation home, or second home.
- Assessor
- The local office that estimates and records property values and exemptions.
- Treasurer
- The local office that collects property tax payments and can confirm bill timing.
Michigan homebuyer tax calculator
See the tax bill after you buy.
Where is the house?
Pick the county, city or township, and school district. We use the official 2025 tax rates published by Michigan Treasury.
Not sure of the school district? Check the property listing. It is usually under "Schools."
Need to double-check the exact parcel? Use the official state estimator at treas-secure.state.mi.us/ptestimator or call the local treasurer. Rates can change across city, township, village, and school district lines, so the exact parcel matters.
Why a buyer's property-tax bill can change after a sale
In Michigan, property tax isn't figured on what you paid — it's figured on the home's Taxable Value, with the local millage rates applied to that number. While one owner keeps the home, Proposal A caps how fast that Taxable Value can climb. When the home sells, the cap usually comes off — this is called uncapping — and the Taxable Value resets toward the State Equalized Value, or SEV, which tends to run about half of a home's market value.
That reset is the part that catches buyers: a longtime owner may have been paying on an old, capped number, so the year after you buy, yours can jump to the new one — and your first full-year bill can land well above what the seller was paying. In Port Huron, one school district appears in the rate data. Parcel-specific tax districts can still matter. For a primary home with PRE, Michigan's main-home exemption, the rate shown here is about 41.3 mills. Without PRE, the non-homestead rate is about 59.3 mills. The calculator above turns those local rates into your actual number.
If this will be your main home, make sure that PRE is filed with the local assessor — it can lift up to 18 school-operating mills off the bill. Rentals, vacation homes, and second homes stay on the higher non-homestead rate.
The tax reset is the big one, but it isn't the whole checklist. It's also worth checking whether the address sits in a floodplain, and whether you'll owe a city income tax where you live or work. The buying-a-home guide walks through the rest.
School districts in this area
Port Huron Area Schools
Primary home (PRE) 41.3099 mills · non-homestead 59.3099 mills
Local rules and costs to check
Note-sized practical catches tied to Port Huron: taxes, property rules, permits, local costs, or other things worth checking before you decide.
Local check
Port Huron's City Income Tax and Its Cross-Border Commuters
Port Huron levies a local income tax that catches people who work in the city without living there, including some who commute over the Blue Water Bridge.
Local check
City income tax in St. Clair County
Port Huron levies a city income tax, while St. Clair County's other St.-Clair-only cities do not.
Local check
In Michigan, you get two property-tax bills a year — not one
Most Michigan property owners get separate summer and winter tax bills, with local rules deciding what lands on each bill.
Stories & local context
Get to know Port Huron
Port Huron is the one city in St. Clair County that levies a local income tax, so that's worth factoring into your budget. As across Michigan, property taxes come in separate summer and winter bills. The notes below cover the income tax along with the city's landmarks and history.
Featured local story
Port Huron's ice museum, back when winter was the warehouse
A downtown Port Huron museum gathered more than 10,000 saws, tongs, picks, and wagons from the lost trade of cutting lake ice in winter and selling it all summer.
Read the story →-
The Huron, the last lightship on the Great Lakes
Moored at Port Huron's Pine Grove Park, Lightship No. 103 — the Huron — was the last floating lighthouse on the Great Lakes and is a National Historic Landmark.
-
The tunnel under the river at Port Huron
Dug beneath the St. Clair River in 1891, the railroad bore between Port Huron and Sarnia was the first full-size tunnel ever driven under a river in North America.
-
Fort Gratiot, Michigan's oldest lighthouse
Port Huron's Fort Gratiot Light is Michigan's oldest lighthouse, still marking the mouth of the St. Clair River.
-
The Blue Water Bridge
The Blue Water Bridge is Port Huron's landmark international crossing to Canada, with twin spans over the St. Clair River.
-
The Port Huron to Mackinac sailboat race
Every July, Port Huron hosts the start of the Bayview Mackinac Race and its Boat Week celebration.
-
Thomas Edison grew up here
Thomas Edison spent his boyhood in Port Huron, selling newspapers on the railroad and experimenting in a baggage car.
-
Michigan Has More Lighthouses Than Any Other State
Michigan's Coastal Management Program counted 129 lighthouses in 2026, the most of any state. Not every one is open for a tower climb.
Nearby places
The closest Michigan Porch pages to Port Huron. Open one to read it, or put it side by side with Port Huron — tax rates, school districts, and city income tax.
Compare Port Huron with a neighbor →Next steps
What to check next for Port Huron
Use the county office map for records and services, or follow the home path that matches what you are doing now.
- County Open Saint Clair County See the county page for other cities, townships, villages, local notes, and the county-wide tax snapshot. Open county page →
- Homeowner Keep the house on track Use one calm directory for tax notices, insurance, contractors, permits, records, and repairs. Open homeowner guide →
- Seller Plan the Michigan closing Walk through disclosure, title, transfer tax, PRE rescission, and the records worth keeping. Open seller guide →
Page feedback
See something wrong or unclear?
Send a note about this page. The page address will be included automatically.
Page feedback
Send a note
The page you're on will be included automatically.