Browse / United States / Iowa / Janesville
Janesville
Iowacity
Janesville
Total population
917
Median home value
$221,700
Bachelor's+
Median income
$103,542
Founded
1849
Demographic figures from US Census Bureau · ACS 5-year estimates. Overview below cites Wikipedia and may reference a different year.
- Flood Watch · SevereFlood Watch issued September 29 at 3:42AM CDT until October 2 at 1:00AM CDT by NWS Des Moines IA
Source: NOAA National Weather Service.
City facts
Facts from Wikidata (CC0).
Overview
Janesville is a city in Black Hawk and Bremer counties in the US state of Iowa. The population was 1,034 at the 2020 census. It is part of the Waterloo–Cedar Falls Metropolitan Statistical Area.
Read more on WikipediaHistory & geography
History
Janesville was founded in 1849 by John T. Barrick, a Quaker and abolitionist who had relocated to Iowa from Ohio. According to the book, "The Janesvillians, Volumes I and II" by Maxine Leonard, John T. Barrick built the first mill and frame house in the area. He platted the town of Janesville, which he named in honor of his wife, Jane McPherson Barrick. A post office was established in 1854. It has been established that a tunnel once existed under the business district of Janesville. The tunnel ran between basements and below buildings on both sides of Janesville's Main Street, crossing below the street in the center of town and continuing westward to the Cedar River. One branch of the tunnel continued northward, connecting to the site of Fort John, a shelter built to protect settlers during the Ho-Chunk uprising in June, 1854. The tunnel terminated in the basement of the home of Abel Crail, who later served in Union Army in the American Civil War, and was the first Commander of Janesville Post No. 172, Grand Army of the Republic. According to local legend, the Barricks and other townsfolk sympathetic to their cause aided in the escape of runaway slaves as part of the Underground Railroad. Slaves were moved through Janesville from Grinnell and continued to Decorah and into southeastern Minnesota. The tunnel has since been filled in and no longer exists. People claim to have seen these tunnels and that in fact they still exist to this day. Janesville was a farming community with a population of 311 in 1900, according to the Iowa Data Center [http://www.iowadatacenter.org]. The town's population increased to just 445 by 1950. Because of its proximity to Waterloo-Cedar Falls, the population of Janesville increased to 840 by 1980, when the town was referred to as a…
Geography
Janesville is located on the county line between Bremer and Black Hawk counties, and is bisected by the Cedar River. According to the United States Census Bureau, the city has a total area of , of which is land and is water.
Excerpted from the corresponding Wikipedia article (CC BY-SA).
Demographics & economy
Race & ethnicity
Source: US Census Bureau — American Community Survey, 5-year estimates.
Geography
Coordinates & boundaries from the US Census TIGER/Line shapefiles.
Climate
Current forecast
Forecast for Janesville, IA from NOAA NWS API.
Air quality
Industrial & pollution facilities
Natural hazard risk
Health (adults)
Age-adjusted prevalence estimates from CDC PLACES (latest release).
Walkability
Amenities nearby
Wildlife & biodiversity
Most-observed species
- Black-capped ChickadeePoecile atricapillus (Linnaeus, 1766) · Aves3,690
- Northern CardinalCardinalis cardinalis (Linnaeus, 1758) · Aves3,622
- American CrowCorvus brachyrhynchos C.L.Brehm, 1822 · Aves3,417
- Blue JayCyanocitta cristata (Linnaeus, 1758) · Aves3,289
- Downy WoodpeckerDryobates pubescens (Linnaeus, 1766) · Aves3,145
- White-breasted NuthatchSitta carolinensis Latham, 1790 · Aves2,892
- Canada Goose (canadensis Group)Branta canadensis (Linnaeus, 1758) · Aves2,790
- Red-bellied WoodpeckerMelanerpes carolinus (Linnaeus, 1758) · Aves2,705
Citizen-science & research observations from the Global Biodiversity Information Facility (GBIF).
Schools
Largest nearby schools
- Waverly-Shell Rock Senior High SchoolHigh · Waverly · 771 students · 16.1:1 ratio
- Waverly-Shell Rock Middle SchoolMiddle · Waverly · 699 students · 13.7:1 ratio
- K-5 Elementary School Lincoln Street BuildingElementary · Denver · 467 students · 16.1:1 ratio
- Janesville Elementary SchoolElementary · Janesville · 267 students · 16.7:1 ratio
- Denver Senior High SchoolHigh · Denver · 262 students · 14.6:1 ratio
- Janesville Junior-Senior High SchoolHigh · Janesville · 237 students · 21.5:1 ratio
- Margaretta Carey Elementary SchoolElementary · Waverly · 237 students · 15.8:1 ratio
- West Cedar Elementary SchoolElementary · Waverly · 230 students · 19.2:1 ratio
Public K–12 schools within ~10 mi from Urban Institute Education Data Portal (NCES Common Core of Data, 2022).
Earthquake history
Events from the USGS Earthquake Catalog (global) (FDSN Event Web Service).
Photos
Sights & places nearby
Notable people from here









People born within ~10 km, from Wikidata (CC0). Click any name for their Wikipedia article.
Nearby places in Iowa
- Waverly5.3 mi away
- Denver6.7 mi away · pop. 2,379
- Shell Rock7.6 mi away
- Cedar Falls8.8 mi away · pop. 40,888
- New Hartford9.7 mi away · pop. 675
- Waterloo12 mi away · pop. 67,471
- Clarksville13.9 mi away · pop. 1,237
- Dike15.1 mi away · pop. 1,365
- Evansdale15.9 mi away · pop. 4,518
- Elk Run Heights16.1 mi away
- Dunkerton16.3 mi away · pop. 821
- Gilbertville20.2 mi away · pop. 761
Geography & sun
Nearby airports
Public attention
Books about this place
Recent natural events nearby
Ground air-quality sensors
Recently spotted species
Nearest stream gauge
Events
Gallery
Sources
- • Wikipedia
- • US Census Bureau (ACS 5-year estimates)
- • NOAA National Weather Service
- • Wikidata
- • USGS Earthquake Catalog (global feed)
- • NCES via Urban Institute Education Data Portal
- • GBIF (Global Biodiversity Information Facility)
- • CDC PLACES