Michigan Porch

Casco Township, Allegan County, Michigan

Michigan township · Allegan County · About 2,900 people

Casco Township is fruit and orchard country in southwest Allegan County, sloping down toward the Lake Michigan shore. It's a rural, agricultural township where farms and fields fill much of the land, with the lake forming its western edge.

At a glance

State millage data currently shows about 32.8 to 35.4 mills for a primary home. 3 school districts cover the community, so the parcel and PRE status decide the final bill.

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 Casco Township assessor or treasurer

Start with the Casco Township office shown on the assessment notice or tax bill. The assessor handles value and exemptions; the treasurer handles the current summer or winter bill.

Rental registration, building permit, or code problem Casco Township 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.

Marriage license, local record, deed, or delinquent tax Allegan County offices

The clerk, register of deeds, and county treasurer handle different parts of this work. The county page separates them for you.

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.

The practical stuff

Buying, owning, or selling in Casco Township

The seller's tax bill may not be your tax bill.

2025 property-tax snapshot

Primary home (PRE)
32.8369 mills - 35.3774 mills
Other property / non-homestead
50.8369 mills - 52.8285 mills
School districts available
3 in Casco Township

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.
Open the local property-tax calculator

Enter a purchase price and choose the school district to estimate the first full-year bill.

Michigan homebuyer tax calculator

See the tax bill after you buy.

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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 Casco Township, your rate can vary by parcel. The school district tied to the property matters, and 3 school districts cover Casco Township. For a primary home with PRE, Michigan's main-home exemption, rates currently run about 32.8 to 35.4 mills. Without PRE, non-homestead rates run about 50.8 to 52.8 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. Out here, a home beyond city water and sewer usually comes with a private well and septic system worth testing before you close. 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 and exact rate rows

Bloomingdale Public S

Primary home (PRE) 35.3774 mills · non-homestead 52.8285 mills

Fennville Public Schools

Primary home (PRE) 32.8369 mills · non-homestead 50.8369 mills

South Haven Public SC

Primary home (PRE) 34.4428 mills · non-homestead 52.4428 mills

Local context

A little context for Casco Township

Near the open coast, Lake Michigan dune and high-risk erosion rules can shape what and where you're allowed to build, so it's worth understanding before you buy along the water. Some homes in the township also fall inside the emergency-planning zone for the Palisades nuclear plant. Property taxes come in two bills a year, summer and winter, and a township special assessment can add to the regular rate. The notes below cover the shoreline rules, the planning zone, and the rest.

Nearby places

The closest Michigan Porch pages to Casco Township. Open one to read it, or put it side by side with Casco Township — tax rates, school districts, and city income tax.

Compare Casco Township with a neighbor →

Next steps

What to check next for Casco Township

Use the county office map for records and services, or follow the home path that matches what you are doing now.

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