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Ozaukee County, Wisconsin

Historic newspapers, landmarks, and county history layers for genealogists and local historians.

—newspaper titles

—digitized titles

42historic places

—earliest paper

1853formed

91,503pop. 2020

19cemeteries

—CW battlefields

At a glance

Summary

The National Register of Historic Places includes 42 listed properties in the county, first listed in 1973. Most listings are in or near Mequon, Port Washington, Cedarburg.

Summary generated automatically from the source data on this page.

Newspapers

Library of Congress

Newspaper directory data for Wisconsin is not yet loaded on this site. Browse Ozaukee titles at the Library of Congress.

National Register of Historic Places

NPS NRHP

23 of 42 listings mapped; some locations are restricted by NPS to protect sensitive sites.

42 listed properties

Property	City	Type	Listed
Bigelow School	Mequon	Building	2000
Bolens, Harry W., House	Port Washington	Building	1983
Cedarburg Mill	Cedarburg	Building	1974
Cedarburg Woolen Co. Worsted Mill	Grafton	Building	1983
Clark, Jonathan, House	Mequon	Building	1982
Columbia Historic District	Cedarburg	District	1992
Concordia Mill	Cedarburg	Building	1974
Covered Bridge	Cedarburg	Structure	1973
Day, Isham, House	Mequon	Building	2000
Dodge, Edward, House	Port Washington	Building	1975
Grafton Flour Mill	Grafton	Building	1983
Green Bay Road Historic District	Thiensville	District	2004
Hamilton Historic District	Cedarburg	District	1976
Hilgen and Wittenberg Woolen Mill	Cedarburg	Building	1978
Hoffman House Hotel	Port Washington	Building	1984
ISLAND CITY (schooner) Shipwreck	Mequon	Site	2011
J.M. ALLMENDINGER (Steambarge) Shipwreck	Mequon	Site	2018
Jahn, William F., Farmstead	Mequon	Building	2000
Kendall Cabinet Shop	Fredonia	Building	2016
Main Street Historic District	Thiensville	District	2004
Milwaukee Falls Lime Company	Grafton	Site	2012
Moquon Town Hall and Fire Station Complex	Mequon	Building	2000
NIAGARA (steamer)	Belgium	Site	1996
NORTHERNER Shipwreck (Schooner)	Town of Grafton	Site	2010
Nieman, Edwin J., Sr., House	Mequon	Building	1996
O'Brien-Peuschel Farmstead	Mequon	Building	2000
Old Ozaukee County Courthouse	Port Washington	Building	1976
Payne Hotel	Saukville	Building	1991
Port Washington Downtown Historic District	Port Washington	District	2000
Port Washington Fire Engine House	Port Washington	Building	2009
Port Washington Light Station	Port Washington	Building	1999
Port Washington North Breakwater Light	Port Washington	Structure	2018
Reichert, John, Farmhouse	Mequon	Building	1982
SENATOR (steam screw) Shipwreck	Port Washington	Site	2016
St. Mary's Roman Catholic Church	Port Washington	Building	1977
St. Peter Shipwreck (Schooner)	Port Washington	Site	2024
Stony Hill School	waubeka	Building	1976
TENNIE AND LAURA (Shipwreck) (Additional Documentation)	Port Washington	Site	2008
Vocke, Frank, Octagonal Barn	Mequon	Building	2016
Voigt, Jacob, House	Mequon	Building	2000
Washington Avenue Historic District	Cedarburg	District	1986
Wayside House	Cedarburg	Building	1982

Source: National Park Service, National Register of Historic Places. Property links open NRHP nomination files at the National Archives.

County formation

Newberry AHCB

Ozaukee was formed in 1853 (1853-03-07) from Washington.

OZAUKEE created from WASHINGTON.

Source: Newberry Library, Atlas of Historical County Boundaries.

Population by decade

Census

Ozaukee County population from 1860 to 2020 (Census historical series).

1860	1880	1900	1920	1940	1950	1960	1980	2000	2020
15,682	15,461	16,363	16,335	18,985	23,361	38,441	66,981	82,317	91,503

Sources: U.S. Census Bureau historical county population (Forstall 1790–1990) and public-domain / CC0 county population series through 2020.

Cemeteries & historical places

USGS GNIS

19 cemeteries and 0 historical populated places (ghost towns / former settlements) recorded in USGS GNIS for this county.

Cemeteries — 19 of 19 listed

Name	Lat	Lon
Holden Cemetery	43.41179	-87.93831
Immanuel Cemetery	43.28763	-87.97632
Katharina Cemetery	43.44033	-87.94041
Mequon Cemetery	43.22226	-87.98519
Norwegian Cemetery	43.40088	-87.88565
Old Settlers Rest Cemetery	43.27449	-87.92729
Saint Finbars Cemetery	43.4365	-88.00108
Saint Francis Cemetery	43.27861	-88.00909
Saint John the Baptist Cemetery	43.47869	-87.99087
Saint Johns Cemetery	43.46145	-88.00056
Saint Mary's Cemetery	43.40821	-87.87925
Saint Paul Cemetery	43.4783	-87.99088
Saint Paul Cemetery	43.31935	-87.96219
Trinity Lutheran Cemetery	43.19945	-87.96743
Union Cemetery	43.53841	-87.97061
Union Cemetery	43.38441	-87.88079
Waubeka Union Cemetery	43.46194	-87.98083
Woodlawn Cemetery	43.32295	-87.96349
Zur Ruhe Cemetery	43.30054	-87.984

Source: USGS Geographic Names Information System (public domain). Cemeteries from the 2021 NationalFile archive; historical places from GNIS HistoricalFeatures topical extract.

Historical markers

HMdb link

Marker text and photos from the Historical Marker Database (HMdb) are not embedded here. HMdb allows non-commercial reuse with attribution, but commercial/compensated use needs written permission; this is a commercial site, so we only link out.

Search HMdb for Ozaukee County, Wisconsin

Terms: hmdb.org/copyright.asp. Linking is encouraged by HMdb.