Oconomowoc Lake, Wisconsin
23 topographic sheets cover this place, the earliest surveyed in 1892 and the latest in 1991. It stands in Oconomowoc Lake Village. It lies in ZIP code area 53066. The Survey maps it on the Oconomowoc East quadrangle. 566 people lived here at the 2020 count. It stands 899 feet above sea level.
Population over time
2 figuresOconomowoc Lake fell from 595 to 566 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.
| Year | People | Change |
|---|---|---|
| 2010 | 595 | |
| 2020 | 566 | -29 (-5%) |
Topographic sheets covering this place
8 surveys from 23 printed sheetsMatched 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
Fires near this place
18 since 2018Regional context, not property-specific evidence. The federal wildfire occurrence database lists 18 fires within 5 miles of Oconomowoc Lake between 2018 and 2020, burning about 9 acres in total. None started naturally. 4 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.
| Reported cause | Fires |
|---|---|
| Missing data/not specified/undetermined | 7 |
| Debris and open burning | 6 |
| Arson/incendiarism | 4 |
| Smoking | 1 |
The most recent of them, most recent first, with the day each was reported and the service that recorded it.
| Date | Cause | Size | Reported by | Name on the report |
|---|---|---|---|---|
| 21 September 2018 | Debris and open burning | 1.0 acres | Wisconsin Department of Natural Resources | 1802995 |
| 19 July 2018 | Debris and open burning | under an acre | Wisconsin Department of Natural Resources | 1839 |
| 30 June 2018 | Arson/incendiarism | under an acre | Wisconsin Department of Natural Resources | 1801911 |
| 1 May 2020 | Missing data/not specified/undetermined | under an acre | Wisconsin Department of Natural Resources | 124 |
| 4 April 2018 | Missing data/not specified/undetermined | 1.0 acres | Wisconsin Department of Natural Resources | 1800908 |
| 30 April 2018 | Arson/incendiarism | under an acre | Wisconsin Department of Natural Resources | 1800130 |
| 29 April 2018 | Missing data/not specified/undetermined | 1.0 acres | Wisconsin Department of Natural Resources | 1800125 |
| 26 April 2018 | Smoking | under an acre | Wisconsin Department of Natural Resources | 1801151 |
Settlements close enough to share some of these fires:
Mines and quarries near this place
4 within 5 milesRegional context, not property-specific evidence. The federal mineral resources record lists 4 workings within 5 miles of Oconomowoc Lake: 3 producers, 1 past producer. 3 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.
| Where | Site | Commodity | Status | Recorded |
|---|---|---|---|---|
| North Sawyer Pit | Sand and Gravel, Construction | Producer | ||
| Sand and Gravel Pit | Sand and Gravel, Construction | Producer | ||
| Silver Lake Sand Pit | Sand and Gravel, Construction | Past Producer | ||
| Vogt Pit | Sand and Gravel, Construction | Producer |
Storms near this place
17 since 2013Regional context, not property-specific evidence. The National Weather Service names Oconomowoc Lake in 17 storm reports between 2013 and 2026: 9 hail, 6 thunderstorm wind, 1 heavy rain, 1 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.
| When | Event | Place named | Harm | What the report says |
|---|---|---|---|---|
| April 2026 | Thunderstorm Wind | Oconomowoc Lake | $60,000 | A swath of scattered tree and powerline damage across the county, but with heavier concentrations of damage in some areas. There was widespread tree damage on the west side of Lake Okauchee, and also a concentration of uprooted and snapped trees, including some felled on homes, near North Prairie. Another concentration of many snapped pine trees near the intersection of Waterville Rd. and Robinhood Dr. Another concentration of trees and powerlines down near Big Bend and yet another in the Sussex area. |
| June 2022 | Flood | Oconomowoc Lake | $30,000 | Heavy rain and accumulated hail that clogged storm sewers, led to street flooding in the Oconomowoc area. Some businesses and basements were flooded. The Department of Public Works responded to clear the roads and storm sewers of hail. |
| July 2013 | Heavy Rain | Oconomowoc Lake | $30,000 | no account filed |
| June 2014 | Thunderstorm Wind | Oconomowoc Lake | $15,000 | Sporadic coverage of trees and power lines down across the northern half of Waukesha County. A tree landed on a police car. |
| June 2019 | Thunderstorm Wind | Oconomowoc Lake | $4,000 | Eight trees down with 1-2 dozen branches down. |
| May 2025 | Thunderstorm Wind | Oconomowoc Lake | $2,000 | Several trees and branches down. |
| August 2018 | Thunderstorm Wind | Oconomowoc Lake | $2,000 | Numerous trees and branches down on Valley Road. |
| May 2017 | Thunderstorm Wind | Oconomowoc Lake | $1,000 | A large tree uprooted. |
| April 2026 | Hail | Oconomowoc Lake | - | Public report of 1 inch diameter hail near Oconomowoc. |
| June 2022 | Hail | Oconomowoc Lake | - | no account filed |
| June 2022 | Hail | Oconomowoc Lake | - | no account filed |
| June 2022 | Hail | Oconomowoc Lake | - | no account filed |
| June 2022 | Hail | Oconomowoc Lake | - | no account filed |
| June 2022 | Hail | Oconomowoc Lake | - | no account filed |
| September 2021 | Hail | Oconomowoc Lake | - | no account filed |
| June 2020 | Hail | Oconomowoc Lake | - | no account filed |
| May 2018 | Hail | Oconomowoc Lake | - | no account filed |
Nearest settlements
The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.
| Map | Place | Distance | Sheets |
|---|---|---|---|
| Okauchee | 1.4 miles | 23 | |
| Okauchee Lake | 1.6 miles | 23 | |
| Summit Corners | 2.0 miles | 23 | |
| Oconomowoc | 2.2 miles | 23 | |
| Nashotah | 3.1 miles | 23 | |
| Summit Center | 3.1 miles | 23 | |
| Chenequa | 3.6 miles | 23 | |
| Stonebank | 3.7 miles | 22 |
Elsewhere
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.
| Wikipedia article on Oconomowoc Lake | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q2891674 | The structured record the population and elevation above come from. Public domain (CC0). |
Provenance
This settlement is recorded in the Geographic Names Information System as feature 1570738. 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.







