Janesville, Wisconsin

• Open map evidence
• Research guide
• Rock 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 12 of 39 shown

• Armory, Thelisted 1978
• Court Street Methodist Churchlisted 1977
• Courthouse Hill Historic Districtlisted 1986
• James B. Crosby Houselisted 1995
• Erastus Dean Farmsteadlisted 1978
• Fredendall Blocklisted 1982
• Janesville Cotton Milllisted 1980
• Janesville High Schoollisted 1999
• Janesville Public Librarylisted 1981
• Janesville Pumping Stationlisted 1985
• Jefferson Avenue Historic Districtlisted 2006
• John H. Jones Houselisted 2008

Every listing in Rock County

Janesville grew from 63,575 to 65,615 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.

• 1891 USGS Janesville quadrangle1:62500
• 1893 USGS Janesville quadrangle1:62500, 4 printings
• 1954 USGS Rockford quadrangle1:250000
• 1955 USGS Rockford quadrangle1:250000
• 1958 USGS Rockford quadrangle1:250000, 4 printings
• 1961 USGS Janesville West quadrangle1:24000, 3 printings
• 1962 USGS Janesville quadrangle1:62500
• 1963 USGS Rockford quadrangle1:250000
• 1981 USGS Monroe quadrangle1:100000

History of Rock County, and Transactions of the Rock County Agricultural Society and Mechanics' Institute, published 1856 names this settlement in its chapter on Janesville 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 12 fires within 5 miles of Janesville between 2018 and 2019, burning about 2 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.

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:

• Anderson
• Hanover
• Afton
• Foxhollow
• Shopiere
• Stebbinsville

Every fire recorded in Rock County

Regional context, not property-specific evidence. The federal mineral resources record lists 10 workings within 5 miles of Janesville: 5 past producers, 4 producers, 1 unknown. 4 still produce. What was taken out: Sand and Gravel, Construction, 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.

Every working recorded in Rock County

Regional context, not property-specific evidence. The National Weather Service names Janesville in 67 storm reports between 1994 and 2006: 31 thunderstorm wind, 14 hail, 12 lightning, 4 flood. The reports record 7 injuries. 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 Rock 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 1567100. 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.