Oconomowoc, Wisconsin

• Open map evidence
• Research guide
• Waukesha County

Buildings and businesses the archive holds for this place. Each opens its own page, with the source record it came from.

On the National Register 8 records

• George N. Cobb Houselisted 1982
• National Guard Armory 127th Regiment Infantry Company Glisted 1984
• Oconomowoc City Halllisted 1980
• Oconomowoc Depotlisted 1980
• Oconomowoc High Schoollisted 2013
• Clarence Peck Residencelisted 1988
• Henry and Mary Schuttler Houselisted 1987
• Walter L. Peck Houselisted 1986

Oconomowoc grew from 15,759 to 18,203 between 2010 and 2020. These are the recorded population figures Wikidata holds for this place, reached through the Geographic Names Information System number this page is keyed on rather than by name, so they belong to this place and not to another of the same name. Most are census counts, but not all are: an early figure may be a founding or settlement estimate, and an estimate published within five years of a census is left out. The change column is computed, and is left blank where more than 20 years separate a figure from the one before it, because a gap that long is not a change between two counts.

Matched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.

• 1892 USGS Oconomowoc quadrangle1:62500, 4 printings
• 1909 USGS Oconomowoc quadrangle1:62500, 6 printings
• 1957 USGS Madison quadrangle1:250000, 3 printings
• 1959 USGS Hartland quadrangle1:62500
• 1959 USGS Oconomowoc East quadrangle1:24000, 5 printings
• 1960 USGS Madison quadrangle1:250000, 2 printings
• 1984 USGS Oconomowoc quadrangle1:100000
• 1991 USGS Oconomowoc quadrangle1:100000

The History of Waukesha County, Wisconsin. Containing an Account of Its Settlement, Growth, Development and Resources; an Extensive and Minute Sketch of Its Cities, Towns and Villages--their Improvements, Industries, Manufactories, Churches, Schools and Societies; Its War Record, Biographical Sketches, Portraits of Prominent Men and Early Settlers; the Whole Preceded by a History of Wisconsin, Statistics of the State, and an Abstract of Its Laws and Constitution and of the Constitution of the United States, published 1880 names this settlement in its chapter on Oconomowoc City. These are the passages that mention it, exactly as the scans read.

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 18 fires within 5 miles of Oconomowoc between 2018 and 2020, burning about 10 acres in total. None started naturally. 2 were recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.

The most recent of them, most recent first, with the day each was reported and the service that recorded it.

Settlements close enough to share some of these fires:

• Summit Center
• Summit Corners
• Lac La Belle
• Monterey
• Oconomowoc Lake
• Okauchee Lake

Every fire recorded in Waukesha County

Regional context, not property-specific evidence. The federal mineral resources record lists 4 workings within 5 miles of Oconomowoc: 2 past producers, 2 producers. 2 still produce. What was taken out: Sand and Gravel, Construction. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Every working recorded in Waukesha County

Regional context, not property-specific evidence. The National Weather Service names Oconomowoc in 51 storm reports between 1993 and 2025: 22 hail, 21 thunderstorm wind, 6 lightning, 2 flash flood. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.

Every storm recorded in Waukesha County

The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.

Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.

This settlement is recorded in the Geographic Names Information System as feature 1570737. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.

Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.

Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.

Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.