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County · code 26119

Montmorency CountyMichigan

Montmorency County is a county in Michigan with its seat in Atlanta, formed in 1840.

  • Founded1840
  • County seatAtlanta
  • Named forHouse of Montmorency
  • Land area547 sq mi + 16 sq mi water
  • Population9,153 2020 Census
  • Parcels mapped18,329 checked 15 October 2026
Open the free map Click any parcel in Montmorency County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

OscodaOtsegoAlpena Atlanta Census outline · seat marked

Where it is

Montmorency 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 CountyKeweenaw CountyLake CountyLapeer CountyLeelanau CountyLenawee CountyLivingston CountyLuce CountyMackinac CountyMacomb CountyManistee CountyMarquette CountyMason CountyMecosta CountyMenominee CountyMidland CountyMissaukee CountyMonroe CountyMontcalm 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 CountyMontmorency County Montmorency
Counties of Michigan · Montmorency highlighted

History

Formed in 1840 from Michilimackinac County, Mackinac County and Saginaw County

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

Originally created as Cheonoquet County from parts of Michilimackinac County and non-county area attached to Saginaw County, it was not initially organized and was attached to Michilimackinac for judicial purposes. In 1843, Cheonoquet County was renamed Montmorency after the House of Montmorency. The county was then successively attached to Cheboygan County and later Alpena County for judicial and municipal purposes before being fully organized and detached from Alpena in 1881.

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

  1. 1840
    Montmorency County created Cheonoquet (now Montmorency) created from Michilimackinac (now Mackinac) and Non-County Area 2 attached to Saginaw; Cheonoquet not fully organized, attached to Michilimackinac "for judicial purposes."
    from Michilimackinacfrom Mackinacfrom Saginaw
    · Mich. Acts 1840, ann. sess., no. 119, secs. 23, 35/pp. 199-200
  2. 1843
    Renamed Cheonoquet renamed Montmorency.
    formerly Cheonoquet
    · Mich. Acts 1843, ann. sess., no. 67/p. 145
  3. 1853
    Changed Montmorency detached from Mackinac, attached to Cheboygan "for judicial and municipal purposes."
    MackinacCheboygan
    · Mich. Acts 1853, reg. sess., no. 20/p. 19
  4. 1857
    Changed Montmorency detached from Cheboygan, attached to Alpena "for judicial and municipal purposes."
    CheboyganAlpena
    · Mich. Acts 1857, reg. sess., no. 65/p. 162
  5. 1881
    Changed Montmorency fully organized, detached from Alpena.
    Alpena
    · Mich. Acts 1881, reg. sess., pub., no. 163, sec. 1/p. 160

Land and parcels

What the maps cover in Montmorency

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

Montmorency by the Census

Population
9,153 2020 Census count
Housing units
8,930 2020 Census count
Land area
547 square miles
Water area
16 square miles
People per sq mi
17 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

Montmorency County's official site

We have found the county's site but not its offices yet; start there.

County government

  • County government

    The official website of Montmorency County.

    montmorencycountymichigan.us

See your own lot on these maps

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Questions

Common questions about Montmorency County

When was Montmorency County founded?
Montmorency County was founded in 1840, formed from Michilimackinac County, Mackinac County and Saginaw County, and named after House of Montmorency.
What is the county seat of Montmorency County?
The county seat of Montmorency County is Atlanta.
Is there an online parcel map for Montmorency County?
Yes. Montmorency County publishes a parcel map of 18,329 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Montmorency County's boundary or name changed?
Montmorency County was created in 1840 from Michilimackinac County, Mackinac County and Saginaw County. Since then the Atlas of Historical County Boundaries records 4 later changes, chiefly involving Alpena County, Cheboygan County and Cheonoquet County. It was formerly called Cheonoquet.
Is my lot in a flood zone?
We do not have flood maps for Montmorency 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