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Ozaukee County, Wisconsin
Genealogy, History & Facts

Ozaukee County, Wisconsin Facts

Ozaukee County

When was Ozaukee County, WI Created?
Ozaukee County was created on March 7, 1853 from Washington County. The county was named for the Ojibwe word for the Sauk nation.

What is the County Seat of Ozaukee County, WI?
The County Seat is located in Port Washington and the county government website is

What counties are adjacent to Ozaukee County, WI?
Bordering Counties are Sheboygan County (north), Milwaukee County (south), Waukesha County (southwest), Washington County (west).

What cities and towns are in Ozaukee County, WI?
Cities and towns located in the County include Cities which consist of Cedarburg, Mequon, Port Washington; Towns consist of Belgium, Cedarburg, Fredonia, Grafton, Port Washington, Saukville; Villages consist of Belgium, Fredonia, Grafton, Newburg, Saukville, Thiensville.

Ozaukee County, WI Vital Records

Where can find Ozaukee County Birth, marriage, Divorce and Death Records?
Ozaukee County vital records can be found at the Wisconsin Office of Vital Records has copies of Birth, Marriage, Divorce & Death Records reported since 1907. There is a fee for each copy requested. Please refer to the information to the Statewide Vital Records in Wisconsin for current fees and application process..

You can search online for Ozaukee County Birth, Marriage, Divorce or Death Records. You can also Order Electronically Online or can download an application for Wisconsin Birth Certificate, Marriage Certificate, Divorce Certificate, Death Certificate Application to mail.

Ozaukee County, WI Census Records

What Ozaukee County, WI census records are available?
There are many types of census records for Ozaukee County guide you in researching your family tree. Federal Population Schedules are available for 1860, 1870, 1880, 1890 (fragment, see below), 1900, 1910, 1920, 1930 and 1940.

Ozaukee Co. Mortality Schedules can be obtained for 1860, 1870 and 1880. Ozaukee Co. Industry and Agriculture can be found for 1860, 1870 and 1880. Ozaukee Co. Union Veterans Schedules is available for 1890. One can find free down-loadable and also printable census forms to help you with your research.

There are Wisconsin State censuses from 1895 and 1905. Also the Wisconsin Compiled Census and Census Substitutes Index for 1820-1890. You can find free down-loadable and also printable census forms to help you with your research. See Also Wisconsin Census Records Research Guide

Ozaukee County, WI Courthouse and Government Records

Ozaukee County Courthouse

What genealogical records can I find in the Ozaukee County Courthouse?
The below facts shows exactly what death, marriage, birth, property, wills, and court records are typically in Ozaukee County.The date listed for each category of record is usually the earliest registration filed. The earliest date does not indicate that there are numerous records for that year and does not mean that all such events were actually registered.

It has been estimated that less than 50 percent of the vital records, for example, were prepared and submitted for permanent filing prior to 1907. Land deeds, probate, and court records generally begin in Wisconsin with the organization of the county. Prior to that date, check the County or Counties it was created from. Some counties formed from other counties transcribed their portion of property deeds to be kept with the new county deed records. See Also Wisconsin Corthouse Records Research Guide.

  • Ozaukee County Courthouse (all departments listed below are located here, unless otherwise noted)
    • Address: 121 W. Main Street, Port Washington, WI 53074-0994; Phone: 262.238.9411
  • Ozaukee County Register of Deeds purpose is to provide official record keeping for Records or files land record documents authorized by law, such as deeds, mortgages, satisfactions, certified survey maps, plats and Federal Tax liens. Files and indexes Birth, Death and Marriage records, Military Discharges, and issues certified copies upon request.
    • Phone: 262-284-8260
    • Birth Records: 1852
    • Marriage Records: 1855
    • Death Records: 1849
    • Land Records: 1835
  • Ozaukee County Register in Probate Office has the responsibility to maintain and update files regarding probate of estates, guardianships, protective placements, adoptions and mental commitments. This is a statutory office with the position of Register in Probate filled by judicial appointment.
    • Address: 1201 S. Spring Street, Port Washington, WI 53074-0994
    • Phone: 262-284-8370
    • Probate Records: 1849 
  • Ozaukee County Clerk of Court Office is required to maintain a record of all documents filed with the courts, keep a record of all court proceedings, and collect various fines and forfeitures ordered by the court and specified by statute.
    • Address: 1201 S. Spring Street, Port Washington, WI 53074-0994
    • Phone: (262) 284-8409
    • Court Records: 1853
  • Public Records of the Consolidated Court Automation Programs provides access to certain public records of the circuit courts of Wisconsin
  • Wisconsin, Probate Estate Files, 1848-1935
  • U.S., Indexed Early Land Ownership and Township Plats, 1785-1898
  • BLM Land Records

Ozaukee County, WI Societies and Family History Resources

What genealogical and historical societies, archives, museums, associations and libraries are available for Ozaukee County, WI?
A list of Ozaukee County Historical  and Genealogical Societies, Libraries, Archives. See also list of Statewide Wisconsin Archives, Historical & Genealogical Societies.

Where can I connect with other Ozaukee County, WI Researchers through message boards and forums?

What other genealogical resources are available in Ozaukee County, WI?
The following are web links to Genealogy, Records and Resources pertaining to Ozaukee County. Many of these genealogy links fall into 3 categories: Business oriented Sites, Personal Sites or Organization Sites. Some have free access some have to have a cost. This is just a listing which has been collected or submitted. I do not endorse or promote one genealogy site above another.

Ozaukee Co. WI Books, Newspapers & Publications

Ozaukee Co. WI Church & Cemeteries

Ozaukee Co. WI Family Websites, Pictures & Histories

Ozaukee Co. WI General and History Websites

Ozaukee Co. WI Maps, Atlases & Gazetteers

Ozaukee Co. WI Military Records

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