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County · code 26125

Oakland CountyMichigan

Oakland County is a county in Michigan with its seat in Pontiac, formed in 1820.

  • Founded1820
  • County seatPontiac
  • Land area867 sq mi + 40 sq mi water
  • Population1,274,395 2020 Census
  • Parcels mapped490,785 checked 14 October 2026
Open the free map Click any parcel in Oakland County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

LapeerMacombGeneseeLivingston Pontiac Census outline · seat marked

Where it is

Oakland 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 CountyMontmorency CountyMuskegon CountyNewaygo CountyOceana CountyOgemaw CountyOntonagon CountyOsceola CountyOscoda CountyOtsego CountyOttawa CountyPresque Isle CountyRoscommon CountySaginaw CountySt. Clair CountySt. Joseph CountySanilac CountySchoolcraft CountyShiawassee CountyTuscola CountyVan Buren CountyWashtenaw CountyWayne CountyWexford CountyOakland County Oakland
Counties of Michigan · Oakland highlighted

History

Formed in 1820 from Macomb County

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

Oakland County was created by Michigan Territory from Macomb County on March 28, 1820. Over the following decades, Oakland County lost territory as new counties were created from its land, including Lapeer, Shiawassee, and Washtenaw in 1822, and eventually Genesee in 1835.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries; the 5 that matter most are shown first.

  1. 1820
    Oakland County created Oakland created by Michigan Territory from Macomb.
    from Macomb
    · Terr. Papers U.S., 10:842, 11:40
  2. 1822
    Lost territory Oakland lost to creation of Lapeer, Shiawassee, and Washtenaw. Oakland lost part of attached Non-County Area 2 to creation of Lapeer, Saginaw, Sanilac, and Shiawassee; Lapeer, Saginaw, Sanilac, and Shiawassee not fully organized, all attached to Oakland for administrative and judicial purposes.
    to Lapeerto Shiawasseeto Washtenawto Saginawto Sanilac
    · Terr. Papers U.S., 11: 310-311
  3. 1829
    Lost territory Oakland lost part of attached Non-County Area 2 to creation of Barry, Calhoun, Eaton, Ingham, Jackson, and Kalamazoo; Oakland lost part of Shiawassee attachment to creation of Ingham.
    to Barryto Calhounto Eatonto Inghamto Jacksonto Kalamazooto Shiawassee
    · Mich. Terr. Laws, 2:secs. 2-6/pp. 735-736
  4. 1831
    Lost territory Oakland lost part of attached Non-County Area 2 to creation of Arenac, Gladwin, and Midland; Oakland lost part of Saginaw attachment to creation of Midland.
    to Arenacto Gladwinto Midlandto Saginaw
    · Mich. Terr. Laws, 3:secs. 6, 10, 12/pp. 871-872
  5. 1833
    Lost territory Oakland lost part of Shiawassee attachment to creation of Livingston; Livingston not fully organized, part attached to Shiawassee and indirectly through Shiawassee to Oakland "for judicial purposes."
    to Shiawasseeto Livingston
    · Mich. Terr. Laws, 3:993
Show all 13 changes (8 more)
  1. 1820
    Oakland County created Oakland created by Michigan Territory from Macomb.
    from Macomb
    · Terr. Papers U.S., 10:842, 11:40
  2. 1821
    Changed Non-County Area 2 was attached to Oakland for administrative and judicial purposes. · Terr. Papers U.S., 11:132
  3. 1822
    Lost territory Oakland lost to creation of Lapeer, Shiawassee, and Washtenaw. Oakland lost part of attached Non-County Area 2 to creation of Lapeer, Saginaw, Sanilac, and Shiawassee; Lapeer, Saginaw, Sanilac, and Shiawassee not fully organized, all attached to Oakland for administrative and judicial purposes.
    to Lapeerto Shiawasseeto Washtenawto Saginawto Sanilac
    · Terr. Papers U.S., 11: 310-311
  4. 1827
    Changed Sanilac detached from Oakland, attached to St. Clair "for judicial purposes."
    SanilacSt. Clair
    · Mich. Terr. Laws, 2:588
  5. 1829
    Lost territory Oakland lost part of attached Non-County Area 2 to creation of Barry, Calhoun, Eaton, Ingham, Jackson, and Kalamazoo; Oakland lost part of Shiawassee attachment to creation of Ingham.
    to Barryto Calhounto Eatonto Inghamto Jacksonto Kalamazooto Shiawassee
    · Mich. Terr. Laws, 2:secs. 2-6/pp. 735-736
  6. 1829
    Changed Part of Non-County Area 2 detached from Oakland; became part of Non-County Area 5 attached to St. Joseph for administrative and judicial purposes.
    St. Joseph
    · Mich. Terr. Laws, 2:744-746
  7. 1831
    Lost territory Oakland lost part of attached Non-County Area 2 to creation of Arenac, Gladwin, and Midland; Oakland lost part of Saginaw attachment to creation of Midland.
    to Arenacto Gladwinto Midlandto Saginaw
    · Mich. Terr. Laws, 3:secs. 6, 10, 12/pp. 871-872
  8. 1833
    Lost territory Oakland lost part of Shiawassee attachment to creation of Livingston; Livingston not fully organized, part attached to Shiawassee and indirectly through Shiawassee to Oakland "for judicial purposes."
    to Shiawasseeto Livingston
    · Mich. Terr. Laws, 3:993
  9. 1835
    Changed Lapeer fully organized, detached from Oakland.
    Lapeer
    · Mich. Terr. Laws, 3:1348
  10. 1835
    Changed Saginaw fully organized, detached from Oakland.
    Saginaw
    · Mich. Terr. Laws, 3:1359
  11. 1835
    Lost territory Oakland lost part of Shiawassee attachment to creation of Genesee; Genesee not fully organized, attached to Oakland "for judicial purposes."
    to Shiawasseeto Genesee
    · Mich. Terr. Laws, 3:1416
  12. 1836
    Changed Non-County Area 2 detached from Oakland, attached to Saginaw "for judicial purposes."
    Saginaw
    · Mich. Acts 1836, ann. sess., p. 67
  13. 1836
    Changed Genesee fully organized, detached from Oakland; Shiawassee detached from Oakland, attached to Genesee "for judicial purposes." Livingston fully organized, detached from Shiawassee and indirectly through Shiawassee from Oakland.
    GeneseeShiawasseeLivingston
    · Mich. Acts 1836, ann. sess., pp. 65-66

Land and parcels

What the maps cover in Oakland

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

Oakland by the Census

Population
1,274,395 2020 Census count
Housing units
554,403 2020 Census count
Land area
867 square miles
Water area
40 square miles
People per sq mi
1,469 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

Oakland County's official site

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

County government

See your own lot on these maps

Open Oakland 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 Oakland County

When was Oakland County founded?
Oakland County was founded in 1820, formed from Macomb County.
What is the county seat of Oakland County?
The county seat of Oakland County is Pontiac.
Is there an online parcel map for Oakland County?
Yes. Oakland County publishes a parcel map of 490,785 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Oakland County's boundary or name changed?
Oakland County was created in 1820 from Macomb County. Since then the Atlas of Historical County Boundaries records 12 later changes, chiefly involving Shiawassee County, Saginaw County and Genesee County.
Is my lot in a flood zone?
We do not have flood maps for Oakland 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