Blog · September 24, 2026 · Michigan
Marquette County, Michigan GIS Parcel Map Guide
Marquette, Ishpeming, Negaunee, Gwinn, K.I. Sawyer, Big Bay, Republic and Champion are all covered by Marquette County’s free FetchGIS parcel map.
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Marquette County is the Upper Peninsula’s biggest by area and population, with iron mines, Lake Superior shoreline and deep winters. Its FetchGIS map pairs parcels with detailed assessing data.
FetchGIS in Marquette County
The map shows a publication timestamp and a layer list that toggles aerial photos, parcel outlines, subdivision names, the street network, water features, school district lines, municipal and township units, landmarks, and the section and lot grid. Click a parcel to open a property panel with the March Board of Review assessed value, final state equalized value, final taxable value, acreage, zoning, tax description, sales, building details and delinquent taxes.
You can open it from the Marquette listing in our Michigan directory or by clicking the Upper Peninsula on our county map.
How to find property lines in Marquette County
Turn on the sections and lots layer first. Much of the county was surveyed in the 1840s and 1850s, and lakeshore land is often described by government lot numbers rather than quarter sections. The Register of Deeds in Marquette has deeds and plats, and the county’s remonumentation work has restored many section corners. In rugged, wooded country, a Michigan professional surveyor is essential before building a camp or cutting timber near a line; trespass cutting is a common dispute.
Reading the property panel
Michigan property records use terms that confuse newcomers, and Marquette County’s panel shows most of them. State equalized value, or SEV, is meant to equal half of a property’s true cash value, so doubling it gives a rough market estimate. Taxable value is what the tax rate is actually applied to, and it can be far below SEV for owners who have held a home a long time. The March Board of Review is the local panel where owners can appeal their assessment each spring; the panel shows the value after that review.
Building details include year built, style, room and bedroom counts, bathrooms, garage, porches and decks. The sales list gives past sale dates and prices, which helps judge how a listing compares. Delinquent tax information is shown for real property only, not personal property.
Because each city and township has its own assessor, the quality of these records varies. A missing garage or wrong bedroom count is not unusual, and the assessor’s office can correct it.
Marquette, Ishpeming and Negaunee
Marquette, on Lake Superior, is the largest city in the Upper Peninsula and home to Northern Michigan University. Its lakeshore includes Presque Isle Park, a rocky peninsula with trails, and an old ore dock that once loaded iron onto freighters. Ishpeming and Negaunee, a few miles inland, are the historic heart of the Marquette Iron Range, where underground and open pit mines have operated since the 1840s.
In Negaunee and Ishpeming, parts of old neighborhoods were abandoned because underground mining left the ground at risk of collapse. Some of these areas were fenced off as caving grounds. When looking at older parcels near the range towns, ask whether any mining history affects stability, and check the sections and lots layer for old mining claims.
Active mines
The Tilden Mine near Ishpeming still produces iron ore pellets, and the Eagle Mine in the Yellow Dog Plains north of the range extracts nickel and copper, with ore trucked to a mill near Humboldt. Mining companies own large amounts of land, and mineral rights under much of the county are held separately from the surface. Before buying rural land, a title search should show whether the minerals were reserved.
Gwinn and K.I. Sawyer
South of Marquette, Gwinn was built as a planned company town for miners in the early 1900s. Nearby K.I. Sawyer was an Air Force base until it closed in 1995. Its runways became the county airport’s neighbor, and former base housing was sold off. Housing there is often cheaper than in Marquette, though some buildings are old.
Commercial forest and snow
Large parts of the county are enrolled in Michigan’s Commercial Forest program, which lowers taxes for timber owners who open their land to hunting and fishing on foot. If your parcel borders commercial forest land, expect hunters in the fall. The county also gets heavy lake-effect snow, often well over 150 inches a year near Lake Superior, so driveway length, road maintenance and roof load matter more than elsewhere.
Big Bay, north along the lake, is remote with seasonal homes and a lighthouse bed and breakfast.
Is the Marquette County GIS map accurate?
Parcel lines are compiled from legal descriptions, and in forested country with few roads to anchor them, they can drift. Treat them as approximate and check the published date shown on the map to know how current the data is. Our guide on looking up an inherited camp or parcel is useful for families sorting out old UP land.
Nearby guides
South across the Menominee River, our Marinette County guide covers similar north woods land. Down in the Lower Peninsula, see Grand Traverse County, or browse the Michigan hub.
Frequently asked questions
What is SEV on a Michigan property record?
State equalized value, which is meant to be half of the property’s true cash value.
Does the Marquette County map show past sales?
Yes. The property panel lists sale dates and prices along with building details.
Who records deeds in Marquette County?
The Register of Deeds in the county courthouse in Marquette.
What is the March Board of Review?
A local board in each township or city that hears assessment appeals every March.
Open the official Marquette County GIS viewer Marquette County in the Platbookmapper directory
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey — especially for fences, setbacks, or boundary disputes.