St. Clair County · Official 2025 state millage

Columbus Township property taxes & housing data

Columbus Township is taxed at 23.5871–29.3470 mills across 4 school districts. That is 3.48 mills below the St. Clair County median and 9.02 mills below the Southeast Michigan median — the 3rd lowest of 31 municipalities in the county, and 35 of 236 region-wide.

Rates by school district

School districtHomesteadNon-homestead$250,000$350,000$500,000
East China Twp School District23.587141.5871$2,948$4,128$5,897
Memphis Community School District26.885644.8856$3,361$4,705$6,721
Richmond Community School District27.191745.1161$3,399$4,759$6,798
Marysville Public School District29.347047.3470$3,668$5,136$7,337

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.

Which side of the boundary matters here. Columbus Township spans 4 school districts, from 23.5871 mills (East China Twp School District) to 29.3470 mills (Marysville Public School District). On a $350,000 home that is $1,008 a year — $84 a month — decided by which street you buy on. Most listing sites do not show you this.

How Columbus Township compares in St. Clair County

Municipality Lowest millageAnnual tax on $350,000
Cottrellville Township23.5254$4,117
Saint Clair Township23.5755$4,126
Columbus Township23.5871$4,128
Berlin Township23.8033$4,166
Greenwood Township24.0059$4,201
China Township24.0554$4,210
Burtchville Township24.5387$4,294

← Saint Clair Township (lower)  ·  Berlin Township (higher) →

For sale in Columbus Township right now

12 active listings in Columbus Township — 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.

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 2026-11-03T21:03+00:00; refreshed at least twice daily.

Compare Columbus Township with another community

Columbus Township has 21 side-by-side comparisons, 19 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 Columbus Township.

Comparison Their lowest millageAnnual tax on $350,000 vs Columbus Township
Columbus Township vs Memphis · same schools44.2314$7,740+$3,613
Columbus Township vs Richmond · same schools41.9639$7,344+$3,216
Columbus Township vs Memphis · same schools40.2848$7,050+$2,922
Columbus Township vs Marysville · same schools39.9654$6,994+$2,866
Columbus Township vs Richmond · same schools39.8993$6,982+$2,855
Columbus Township vs St. Clair · same schools38.9814$6,822+$2,694
Columbus Township vs Marine City · same schools38.1132$6,670+$2,542
Columbus Township vs Kenockee Township · same schools27.6076$4,831+$704
Columbus Township vs Ira Township · same schools27.5526$4,822+$694
Columbus Township vs East China Township · same schools27.2762$4,773+$646
Columbus Township vs Lenox Township · same schools26.3995$4,620+$492
Columbus Township vs Kimball Township · same schools26.3624$4,613+$486
Columbus Township vs Wales Township · same schools25.7073$4,499+$371
Columbus Township vs Riley Township · same schools25.0808$4,389+$261
Columbus Township vs Casco Township · same schools24.5978$4,305+$177
Columbus Township vs China Township · same schools24.0554$4,210+$82
Columbus Township vs Greenwood Township24.0059$4,201+$73
Columbus Township vs Richmond Township · same schools23.2587$4,070−$57
Columbus Township vs Berlin Township23.8033$4,166+$38
Columbus Township vs Cottrellville Township · same schools23.5254$4,117−$11
Columbus Township vs Saint Clair Township · same schools23.5755$4,126−$2

Look up, pay and appeal your Columbus Township taxes

Columbus Township bills twice a year. The summer bill is issued July 1 and the winter bill December 1; most communities make them due September 14 and February 14, and anything still unpaid on March 1 moves to the county treasurer as delinquent, with interest added monthly. Both bills are collected by the Columbus Township treasurer, so the balance on a specific parcel is on the city or township site first (most of Southeast Michigan uses BS&A Online for this) and on the county site once it is late.

Appealing the assessment

Assessment notices go out in late February. If the assessed value is more than half of what the house would actually sell for, the appeal runs in two steps and the first one cannot be skipped: the March Board of Review in Columbus Township (dates and the petition form are on the assessor's notice), then, if the board does not move, a petition to the Michigan Tax Tribunal by July 31 for residential property. The July and December boards do not re-value: they correct qualified errors (clerical mistakes, mutual mistakes of fact, a wrong principal residence exemption) and hear poverty exemptions. A successful appeal lowers the assessed value, not the millage — the 23.5871–29.3470 mills above apply to whatever value stands after it.

A home bought this year is a special case: the taxable value uncaps to the assessed value next year regardless of the appeal, so the number to check on the first notice after closing is the assessed value against the price you paid.

What it's like to own in Columbus Twp

Beyond the tax rate, three things shape what owning in Columbus Twp 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

1972

average year built · 1,873 sqft average across 1,366 single-family homes

SEMCOG Buildings_2024

Radon

2.14 pCi/L

average across 30 home tests · 21% above the EPA 4 pCi/L action level — elevated. ZIPs 48063, 48064.

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 Columbus Township, Michigan?

Columbus Township is taxed at 23.5871–29.3470 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 $4,128 a year.

Does the tax rate change by address within Columbus Township?

Yes. Columbus Township spans 4 school districts and the rate runs from 23.5871 to 29.3470 mills depending on the district your address falls in — a difference of $1,008 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 Columbus Township?

About $4,128 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 Columbus Township 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 Columbus Township compare with the rest of St. Clair County?

It is the 3 lowest of 31 municipalities in St. Clair County and 35 of 236 across the eight-county region — 3.48 mills below the county median.

How do I look up or pay my Columbus Township property tax bill?

Summer and winter bills are collected by the Columbus Township treasurer, so the balance on a parcel is on the municipality's own site (usually BS&A Online). Once a bill is delinquent — March 1 — it moves to the St. Clair County Treasurer, whose parcel search covers every address in the county.

How do I appeal my Columbus Township property tax assessment?

Petition the Columbus Township March Board of Review first — the dates are on the assessment notice mailed in late February — and, if that fails, the Michigan Tax Tribunal by July 31 for residential property. The board step is mandatory; the Tribunal will not hear a residential appeal that skipped it. An appeal changes the assessed value, not the millage (23.5871–29.3470 mills).

Run your own numbers

What your Columbus Township 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 Columbus Township — enter a price and the seller's current taxable value.

The one nobody else built

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.

Buyer Tool

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.

236 municipalities across the 8-county Southeast Michigan region.
Most cities span several districts, and the rate difference between them can exceed 10 mills. This is the step every other calculator skips.
Auto-filled from the official 2025 state report. Override it with the exact rate from your tax bill if you have it.
Not the same as market value or SEV. This is what's capped today.
Non-homestead adds roughly 18 mills of school operating tax.
Your annual tax increase
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Seller pays today—
Your new taxable value—
You'll pay after uncapping—
Added to monthly escrow—
Why this matters: the increase hits in the tax year after your closing — so your first year looks fine and year two jumps. Lenders often escrow off the seller's old bill, which creates a shortage and a payment increase you didn't plan for.

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