Potosi, Wisconsin
16 topographic sheets cover this place, the earliest surveyed in 1900 and the latest in 1984. It stands in Potosi town. It lies in ZIP code area 53820. The Survey maps it on the Potosi quadrangle. 646 people lived here at the 2020 count. It stands 814 feet above sea level.
On record in Potosi
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 3 records
Potosi Badger Huts Sitelisted 1996
Potosi Brewerylisted 1980- St. John Minelisted 1979
Population over time
2 figuresPotosi fell from 688 to 646 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 | 688 | |
| 2020 | 646 | -42 (-6%) |
Topographic sheets covering this place
9 surveys from 16 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.
- 1900 USGS Lancaster quadrangle1:125000
- 1904 USGS Lancaster quadrangle1:125000
- 1908 USGS Lancaster quadrangle1:125000, 5 printings
- 1957 USGS Potosi quadrangle1:24000, 2 printings
- 1959 USGS Dubuque quadrangle1:250000
- 1961 USGS Dubuque quadrangle1:250000
- 1962 USGS Dubuque quadrangle1:250000, 2 printings
- 1976 USGS Dubuque quadrangle1:250000
- 1984 USGS Dubuque North quadrangle1:100000, 2 printings
What happened here
An account from the chapter on Potosi town. The inset identifies its exact source book and publication year.
Thu Jim Crow Murder
In 1838 occurred the "Jim Crow " murder, which created great excitement, not only in Potosi but throughout the county. The Long Range, referred to on page 517, was discovered by one Phipps, who failed to find the main body of mineral and sold to Moore & Watson. The wealth soon developed in the lode tempted some persons to try to obtain forcible possession of it, and to accomplish this they enlisted two or three of a gang of ruffians who then infested the settlement, ready for any evil deed that promised plunder.
In the county-history sources
9,006 words on this townshipHistory of Grant County, Wisconsin, published 1881; History of Grant County Wisconsin, published 1900 names this settlement in its chapter on Potosi Town. These are the passages that mention it, exactly as the scans read.
The lower part of the village, comprising the section whereon Hail's brewery is now situated, called Van Buren, with Lafayette still southward on the left bank of Grant River, previous to the building up of Potosi proper, were the principal business portions of the town. The former place is known as the "Van Buren Entry," having been originally entered by Joseph Wooley and Robert Templeton prior to 1849. It was reserved from sale for a time by the Government on account of being mineral lands ; , but, as the story goes, witnesses were hired to go -over it blindfolded, then taken to the land-office and sworn that they had been all over the ground and could see no mineral. This may or may not be true, but the sections were never of any great moment as mining ground, and the Government lost nothing in the sale of these rough -and broken points.
Passage source: History of Grant County, Wisconsin, published 1881.
It is said that mineral was found in 1829 on the hill opposite the present Catholic church, at the foot of a tree which had been blown down, but nothing definite is known about it. In the same year Thomas Hymer built a cabin at the mouth of the hollow near the present railroad station, but did not remain there long. In the spring of 1832 William S. Anderson built a log cabin in the valley. Terrence Coyle had previously built a cabin near where British Hollow now is and lived in it with his wife and three children - one of them a son named Peter, who was afterward somewhat prominent there. In the spring of 1832 a number of miners came to the valley and located a mining camp there. The doings of this party are described by one of them, Hawkins Taylor, in a letter published in the Dubuque J Times in 1879 : "A few days before I reached Galena the surveyors in Wis¬ consin discovered lead on a bra'nch about two miles from the Mis¬ sissippi River where Potosi is located. The excitement in Galena was then very great over the new discovery and our party, that had got acquainted in the East, started for the discovery at once. Of our party were Sam Druen and Hayden Gilbert. We stopped one night at Gilmore's, near Siusinawa Mound, and the next day we got to the mines. We made little shanties of logs, generally split, and covered with elm bark, and bunks two stories high. Our bed and covering was a thick Mexican blanket, but what good sound sleep we had ! All of us were confident of striking a lead very soon. Each had a tin cup and we had a common coffee pot. Our meat was mess pork. We made our own bread. The huts were scattered for a mile along the branch, generally four men in a hut. There were about sixty miners in camp and only one quarrelsome man, an Irishman named Maloney, and his spite was against Free Williams, a peaceable man and weakly. In the midst of our happiness news came to us one evening that the Indians had defeated Stillwell on Rock River and were then making their way toward the Mississippi and would most likely pass down the Platte and rob the stores of De Tantebar at his town and Loren Wheeler at Gibraltar, and also take in our camp. Cox, then Sheriff of Grant County [it was Iowa County] had sent a messenger from Mineral Point to give us the warning. Within ten minutes of the time the news reached our camp more than forty miners were at Major Ander¬ son's camp. He had been an old Indian fighter and with one accord we went to him to be our commander and adviser. I learn that he died recently in Dubuque. There were some fifteen or twenty Irishmen in the camp who had come from Galena in skiffs and a pirogue. They had brought their provisions and tools in this way, and when the alarm was given they naturally went for the vessels, that were in a branch of the river about a mile from the camp. Maloney, the bully, got behind, and the last of the party had got out into the stream be¬ fore he got there, but he jumped in and was barely saved from drown¬ ing. Free Williams joined Stephenson's company of dragoons and made a brave soldier. By morning our party had dwindled down to thirteen. We then went to De Tantabar's on the Platte, and a man named Cornwell, a Virginian, and I went down to Wheeler's, who " had a horse and joined the dragoons." Finding that the Indians were in no hurry to come our way, we went back to our diggings. I have no record of the names, but we had with us then Major Ander¬ son, a man by the name of Hillis, Ham and his nephew, Theiskell, Ten¬ nesseeans; a man by the name of Cook, from Mississippi; Cornwelh and Nehemiah Dudley, from Vermont. Dudley was the ugliest man, I think, I ever saw, but, notwithstanding the antipathy that was then universal in the Mississippi Valley against Yankees, we all liked Dud¬ ley. I have never heard of him since I left the Mississippi, but 1 have often thought of him. We built a blockhouse of large hewn logs and kept a supply of provisions on hand in case of an attack by the In¬ dians. We mined through the day and slept in our blockhouse at night. It was on the high ground north of the branch, and 1 under¬ stood some years ago that there was a Catholic church near by, and that the old shanty I had lived in was standing near the church."
Passage source: History of Grant County Wisconsin, published 1900.
James P. Cox, then Sheriff of Iowa County (which included all of what is now Grant County), spent some time here in the summer of 1832, and afterward made his home here until he removed to his farm five miles south of Lancaster, a homestead which he called "Waukon." He was quite prominent in public affairs. He died in 1866.
Passage source: History of Grant County Wisconsin, published 1900.
Machine-read from a century-old scan, so expect the errors a machine makes: misspelled names, dropped words, stray characters.
Read the whole chapter on Potosi Town - it names this place 34 more 34 times.
Fires near this place
7 since 2018Regional context, not property-specific evidence. The federal wildfire occurrence database lists 7 fires within 5 miles of Potosi between 2018 and 2020, burning about 25 acres in total. None started naturally. None was 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 |
|---|---|
| Debris and open burning | 4 |
| Missing data/not specified/undetermined | 3 |
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 |
|---|---|---|---|---|
| 18 June 2018 | Debris and open burning | 1.0 acres | Wisconsin Department of Natural Resources | 2618 |
| 27 April 2020 | Missing data/not specified/undetermined | 1.0 acres | Wisconsin Department of Natural Resources | 2320 |
| 25 April 2018 | Debris and open burning | 2.0 acres | Wisconsin Department of Natural Resources | 2018 |
| 25 April 2018 | Debris and open burning | 1.0 acres | Wisconsin Department of Natural Resources | 2118 |
| 23 April 2018 | Debris and open burning | 2.0 acres | Wisconsin Department of Natural Resources | 1918 |
| 19 March 2018 | Missing data/not specified/undetermined | 17 acres | Wisconsin Department of Natural Resources | 1218 |
| 17 March 2018 | Missing data/not specified/undetermined | 1.0 acres | Wisconsin Department of Natural Resources | 1118 |
Settlements close enough to share some of these fires:
Mines and quarries near this place
10 of 24 shownRegional context, not property-specific evidence. The federal mineral resources record lists 24 workings within 5 miles of Potosi: 11 unknowns, 9 past producers, 3 producers, 1 occurrence. 3 still produce. What was taken out: Lead, Zinc, Stone, Crushed/Broken, Stone. 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 |
|---|---|---|---|---|
| Beecher Sand Ltd. | Sand and Gravel, Construction | Producer | ||
| Bell Quarry | Stone | Unknown | ||
| Morsehead Quarry | Stone | Unknown | ||
| Bell Quarry | Stone, Crushed/Broken | Producer | ||
| Pennecamp Quarry | Stone, Crushed/Broken | Past Producer | ||
| Ulbircht-Schaefer Quarry | Stone, Crushed/Broken | Past Producer | ||
| Ulbrick Quarry | Stone, Crushed/Broken | Producer | ||
| Cardiff Mine No. 2 | Zinc, Lead | Past Producer | ||
| Cardiff No. 1 Mine | Zinc, Lead | Unknown | Sphalerite | |
| Cardiff No. 2 Mine | Zinc, Lead | Unknown | Sphalerite |
Storms near this place
37 since 1994Regional context, not property-specific evidence. The National Weather Service names Potosi in 37 storm reports between 1994 and 2025: 18 thunderstorm wind, 8 hail, 6 flash flood, 3 tornado. 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 |
|---|---|---|---|---|
| July 2009 | Hail | Potosi | $1,800,000 | no account filed |
| July 2008 | Flash Flood | Potosi | $75,000 | Emergency Management reported Highway 61 closed between Potosi and Lone Elm Tree road due to shoulder washouts. Several roads were closed and basements flooded along County Roads O and B. Some homes were even evacuated in Potosi. |
| May 2017 | Thunderstorm Wind | Potosi | $50,000 | An estimated 65 mph wind gust occurred in Potosi. Trees were blown down and windows shattered by the winds. Some of the trees landed on houses and several campers in a campground were also damaged. |
| August 2003 | Thunderstorm Wind | Potosi | $35,000 | no account filed |
| May 2024 | Thunderstorm Wind | Potosi | $20,000 | Emergency management reported trees down on homes in Potosi. |
| August 2003 | Thunderstorm Wind | Potosi | $20,000 | no account filed |
| August 2007 | Thunderstorm Wind | Potosi | $15,000 | Several large trees fell over damaging a house and a car. |
| May 1998 | Thunderstorm Wind | Potosi | $15,000 | no account filed |
| September 2000 | Thunderstorm Wind | Potosi | $12,500 | no account filed |
| August 2022 | Flash Flood | Potosi | $10,000 | Runoff from heavy rain caused some rock slides to occur neat Potosi. A few culverts became clogged with debris sending water over State Highway 133. |
| July 2020 | Thunderstorm Wind | Potosi | $10,000 | A tree was blown down onto a vehicle in Potosi. |
| September 2019 | Flash Flood | Potosi | $10,000 | Runoff from heavy rain caused flash flooding to occur near Potosi and Dickeyville. Roads were closed in and near Potosi. Near Dickeyville, an estimated five feet of water from McAdam Branch Creek was flowing over a road. |
| March 2007 | Tornado (EF0) | Potosi | $8,000 | A weak tornado briefly touched down in Potosi, toppling a few trees and causing minor damage to some buildings. |
| April 2001 | Thunderstorm Wind | Potosi | $6,000 | no account filed |
| August 2021 | Thunderstorm Wind | Potosi | $5,000 | Some buildings were damaged in Potosi by an estimated 50 mph wind gust. |
| August 2020 | Thunderstorm Wind | Potosi | $5,000 | Trees and power lines were blown down in Potosi. |
| June 2014 | Flash Flood | Potosi | $5,000 | Runoff from heavy rains caused a mud and rock slide to occur in Potosi closing State Highway 133. |
| June 2015 | Thunderstorm Wind | Potosi | $3,000 | Trees and power lines were blown down in Potosi. |
| April 2006 | Hail | Potosi | $3,000 | no account filed |
| August 2016 | Thunderstorm Wind | Potosi | $2,000 | Power lines were blown down in Potosi. |
| September 2012 | Thunderstorm Wind | Potosi | $2,000 | Trees were blown down across a road in Potosi. |
| June 2007 | Tornado (EF0) | Potosi | $1,000 | A small tornado touched down briefly in Potosi, causing minor structural damage to the roof of a shed. |
| June 2007 | Tornado (EF0) | Potosi | $800 | A small tornado touched down briefly near Highway 61 and 35 just southeast of Potosi, causing some minor tree and crop damage. |
| August 2007 | Flash Flood | Potosi | $800 | The Grant River rose out of its banks. |
| May 2001 | Hail | Potosi | $500 | no account filed |
| July 2025 | Thunderstorm Wind | Potosi | - | Emergency management measured a 65 mph wind gust in Potosi. |
| June 2024 | Flash Flood | Potosi | - | The public reported a mud slide on Dog Tail Rd. north of Highway 133. |
| April 2009 | Funnel Cloud | Potosi | - | A trained spotter reported a funnel cloud three miles northeast of Potosi. |
| August 2009 | Thunderstorm Wind | Potosi | - | no account filed |
| May 2007 | Funnel Cloud | Potosi | - | no account filed |
| May 2004 | Thunderstorm Wind | Potosi | - | no account filed |
| May 2002 | Hail | Potosi | - | no account filed |
| May 2000 | Hail | Potosi | - | no account filed |
| August 1997 | Hail | Potosi | - | no account filed |
| April 1995 | Thunderstorm Wind | Potosi | - | no account filed |
| April 1994 | Hail | Potosi | - | no account filed |
| July 1994 | Hail | Potosi | - | 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 |
|---|---|---|---|
| Van Buren | 1.2 miles | 16 | |
| Tennyson | 1.4 miles | 16 | |
| British Hollow | 1.8 miles | 16 | |
| Buena Vista | 2.1 miles | 16 | |
| Rockville | 3.1 miles | 16 | |
| Burton | 5.9 miles | 16 | |
| Cornelia | 7.1 miles | 17 | |
| Hurricane | 7.3 miles | 16 |
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 Potosi | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q1880237 | 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 1571838. 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.








