Iosco County, Michigan
Use this county page to find the right government office or narrow down to a city or township. The service directory covers common county jobs; the local pages add property-tax context, school-district rate ranges, nearby places, and Porch Notes tied to each community.
County snapshot
Cities
3
Townships
11
School districts
4
Primary home (PRE) rates, for homes with Michigan's Principal Residence Exemption, range from 20.5376 mills to 39.1204 mills.
Other property, often called non-homestead, usually means rentals, vacation homes, and second homes. Those rates range from 38.5376 mills to 57.1204 mills.
Rate rows come from the official Michigan Treasury millage-rate reports . Data used: 2025 Michigan Treasury Total Property Tax Rates. Last reviewed July 12, 2026.
Use this carefully: Michigan Porch uses the statewide published rates as a planning aid. The local assessor or treasurer controls parcel-specific values, due dates, and special assessments.
County service directory
Find the office before you make the trip
Some questions stay with the city or township. Others move to the county, a health district, or a court. Start with the job you need done, then confirm hours, fees, and forms with the office.
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Marriage licenses, local vital records, and elections
Iosco County clerk
Start with the clerk for a marriage license, a county-filed birth or death record, election information, and other county records.
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Deeds, mortgages, and recorded land documents
Iosco County register of deeds
Use this office for recorded property documents. It does not decide ownership disputes or tell you whether a deed is legally sufficient.
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Delinquent real-property tax and foreclosure questions
Iosco County treasurer
Current bills usually begin with the city or township treasurer. After the local collection period, delinquent real-property tax moves to the county or the state foreclosing unit.
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Private wells, septic systems, and local health services
Local health department
Michigan has county and multi-county health departments. Use the state finder to see which department serves this county before applying or making an appointment.
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District, circuit, probate, or family-court business
Michigan trial courts serving this county
The court depends on the case type and sometimes the city or district. The judiciary directory lists court locations, websites, and contact information by county.
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Countywide assessment data and equalization
Iosco County equalization
Your local assessor and Board of Review handle an individual parcel first. County equalization studies values across local units and supports assessment administration.
County websites are checked against the State of Michigan county website directory . State and court finders are used where one office or district can serve more than one county. Directory reviewed July 12, 2026. Office roles were checked against Michigan Vital Records, Michigan Treasury taxpayer resources, and State Tax Commission guidance.
Local pages
Places in Iosco County
City
East Tawas
1 school district available.
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City
Tawas City
1 school district available.
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City
Whittemore
1 school district available.
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Township
Alabaster Township
1 school district available.
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Township
Au Sable Township
1 school district available.
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Township
Baldwin Township
1 school district available.
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Township
Burleigh Township
1 school district available.
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Township
Grant Township
2 school districts available.
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Township
Oscoda Township
1 school district available.
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Township
Plainfield Township
1 school district available.
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Township
Reno Township
2 school districts available.
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Township
Sherman Township
2 school districts available.
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Township
Tawas Township
1 school district available.
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Township
Wilber Township
2 school districts available.
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Porch Notes
Local notes from Iosco County
Stories, practical notes, and local details tied to places in this county.
Iosco County · History and culture
Alabaster: the gypsum mine that sent buckets out over Lake Huron
Alabaster grew up around an open-pit gypsum mine opened in 1862, and for decades a mile-and-a-half cable tramway carried buckets of gypsum out over Saginaw Bay to waiting freighters.
Read this note ->Iosco County · History and culture
Cooke Dam: the first of six powerhouses on the lower Au Sable
Cooke Dam began making electricity on the Au Sable in December 1911 — the first of six hydro plants the Foote brothers built between Mio and Lake Huron, once feeding a record-setting power line to Flint.
Read this note ->Iosco County · History and culture
How Tawas got its name: a chief, a bay, and a slip of the pen
Tawas City takes its name from Chief O-ta-was, a Chippewa leader who camped on the bay — a name that early mapmakers reshaped by adding a letter, then dropping another.
Read this note ->Iosco County · Outdoors
Lumberman's Monument: three bronze loggers on the Au Sable bluff
A 14-foot bronze of three loggers stands on a high bluff over the Au Sable River near Oscoda, dedicated in 1932 to the men who cut Michigan's white pine.
Read this note ->Iosco County · Outdoors
Tawas Point: the sandy hook that traps migrating birds
The curving sand spit at Tawas Point funnels hundreds of migrating bird species into one small park each spring and fall, and shelters nesting piping plovers, an endangered Great Lakes shorebird.
Read this note ->Iosco County · Outdoors
The River Road byway: 22 miles of bluffs above the Au Sable
From the M-65 junction near Hale to Oscoda, the River Road Scenic Byway runs 22 miles along high bluffs over the Au Sable, past dam ponds, eagle perches, and Lumberman's Monument.
Read this note ->Next steps
What to check next in Iosco County
Start with a local page, then move into the Michigan rule or tool that matches the question in front of you.
- Tool Estimate a buyer tax bill Use the Michigan homebuyer tax calculator when you have a price, place, and school district. Open calculator ->
- Question Understand uncapping See why a buyer's first full-year tax bill can differ from the seller's old bill. Read the guide ->
- Places Search statewide Look up another city, township, village, county, or school district. Browse places ->
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