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County · code 26083

Keweenaw CountyMichigan

Keweenaw County is a county in Michigan with its seat in Eagle River. The county was created in 1861.

  • Founded1861
  • County seatEagle River
  • Land area540 sq mi + 5,426 sq mi water
  • Population2,046 2020 Census
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Updated

HoughtonMarquetteOntonagonAlgerCook, MN Eagle River Census outline · seat marked

Where it is

Keweenaw on the map of Michigan

Michigan has 83 counties and county equivalents, each with its own records office. Shapes with a page are links.

Alcona CountyAlger CountyAllegan CountyAlpena CountyAntrim CountyArenac CountyBaraga CountyBarry CountyBay CountyBenzie CountyBerrien CountyBranch CountyCalhoun CountyCass CountyCharlevoix CountyCheboygan CountyChippewa CountyClare CountyClinton CountyCrawford CountyDelta CountyDickinson CountyEaton CountyEmmet CountyGenesee CountyGladwin CountyGogebic CountyGrand Traverse CountyGratiot CountyHillsdale CountyHoughton CountyHuron CountyIngham CountyIonia CountyIosco CountyIron CountyIsabella CountyJackson CountyKalamazoo CountyKalkaska CountyKent CountyLake CountyLapeer CountyLeelanau CountyLenawee CountyLivingston CountyLuce CountyMackinac CountyMacomb CountyManistee CountyMarquette CountyMason CountyMecosta CountyMenominee CountyMidland CountyMissaukee CountyMonroe CountyMontcalm CountyMontmorency CountyMuskegon CountyNewaygo CountyOakland CountyOceana CountyOgemaw CountyOntonagon CountyOsceola CountyOscoda CountyOtsego CountyOttawa CountyPresque Isle CountyRoscommon CountySaginaw CountySt. Clair CountySt. Joseph CountySanilac CountySchoolcraft CountyShiawassee CountyTuscola CountyVan Buren CountyWashtenaw CountyWayne CountyWexford CountyKeweenaw County Keweenaw
Counties of Michigan · Keweenaw highlighted

History

Formed in 1861 from Houghton County

An old deed may name a county that no longer exists, or a boundary that has since moved.

Keweenaw County was created from Houghton County on March 11, 1861. In 1875, Isle Royale was separated from Keweenaw, then reunited with it in 1897 when Isle Royale County was eliminated.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries.

  1. 1861
    Keweenaw County created Keweenaw created from Houghton.
    from Houghton
    · Mich. Acts 1861, reg. sess., no. 118/p. 156; Mich. Acts 1862, ext. sess., nos. 2-3/pp. 2-3
  2. 1875
    Lost territory Keweenaw lost to creation of Isle Royale (extinct).
    to Isle Royale
    · Mich. Acts 1875, reg. sess., pub., no. 18/p. 18
  3. 1897
    Gained territory Keweenaw gained all of Isle Royale; Isle Royale eliminated.
    from Isle Royale
    · Mich. Acts 1897, reg. sess., pub., no. 65/p. 75

Land and parcels

What the maps cover in Keweenaw

Who publishes each layer, how good it is, and when we last checked.

Official
from the office that keeps the record
Good enough
a reliable statewide or national copy
Fallback
a guide only; check the official record
Missing
nothing public found yet

People and land

Keweenaw by the Census

Population
2,046 2020 Census count
Housing units
2,270 2020 Census count
Land area
540 square miles
Water area
5,426 square miles · 91% of the county, including large bodies of water
People per sq mi
4 population ÷ land area

Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.

Rules and offices

Who to ask before you build, dig or sell

Official county pages only. We link to them; we do not copy them, because they change.

Inside a city or town, permits usually come from that city rather than the county.

Zoning and code

County government

See your own lot on these maps

Open Keweenaw County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.

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Questions

Common questions about Keweenaw County

When was Keweenaw County founded?
Keweenaw County was founded in 1861, formed from Houghton County.
What is the county seat of Keweenaw County?
The county seat of Keweenaw County is Eagle River.
Is there an online parcel map for Keweenaw County?
Not that we have found yet. Lot lines and owners of record are kept by the county assessor's office. When a public parcel map appears, it shows here.
Has Keweenaw County's boundary or name changed?
Keweenaw County was created in 1861 from Houghton County. Since then the Atlas of Historical County Boundaries records 2 later changes, chiefly involving Isle Royale County.
Is my lot in a flood zone?
We do not have flood maps for Keweenaw County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby

Counties next door