Janesville Authority
Janesville is a high-income, family-oriented village of 917.
Janesville, Iowa
With 917 residents, Janesville sits in Black Hawk County, Iowa as a small civic unit. At $103,542 median household income, Janesville sits in the upper income bracket of Iowa.
Definition and scope
Located in Black Hawk County, Iowa, Janesville operates within Iowa's county-municipal framework. Local services and ordinances are coordinated through county and state-level agencies. The city operates within Congressional District 1 and is part of the Waterloo-Cedar Falls, IA metropolitan area.
Who lives here
Janesville has approximately 917 residents. The median age is 47.0 years. Roughly 91% of housing units are owner-occupied. The median home value is $221,700.
Demographic composition (Census 2023 ACS5):
- White (non-Hispanic): 97.4%
- Black or African American: 0.0%
- Hispanic or Latino: 0.4%
- Asian: 1.1%
Economy and earnings
Median household income in Janesville is $103,542. Poverty rate stands at 5.5%. Unemployment rate at last release was 2.1%. Educational attainment: 28.9% of residents 25 and over hold a bachelor's degree or higher.
Public services and infrastructure
Available public services on file for Janesville:
- Public schools: 2
- Public libraries: 1
- Fire stations: 3
- Police stations: 3
- Hospitals: 3
Getting around
The nearest commercial airport serving Janesville is Bluebird Airport. The closest U.S. courthouse for federal proceedings is Bremer County Courthouse. For passenger rail, the nearest Amtrak station is LaCrosse, Wisconsin.
Geography and climate
Elevation here is 933 feet. The USDA plant hardiness zone is 5a.
References
- Iowa State Authority — state-level reference for Iowa.
- U.S. Census Bureau, American Community Survey 5-Year Estimates — population, income, demographic data.
- Authority Network America — federal- and network-level reference.
Federal Disaster Declarations (10)
Codes & laws coverage
Municipal code indexing
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Laws & Codes
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- 2026-06454 Incorrect Terminology in Regulatory Text; Technical Amendments · source
- 2026-07667 Notice of 2026 Coastal Plain Oil and Gas Lease Sale · source
- 2025-24202 Congressional Review Act Revocation of 2024 Review of Final Rule Reclassification of Major Sources as Area Sources Under Section 112 of the · source
- 2026-08295 Submission for OMB Review; Comment Request · source
- 2026-08127 Foreign-Trade Zone 255; Application for Subzone; Fisher BioServices; Frederick, Maryland · source
- 2026-02639 Ripe Olives From Spain: Preliminary Results and Partial Rescission of Countervailing Duty Administrative Review; 2023 · source
- 2026-01454 Slag Pots From the People's Republic of China: Antidumping Duty Order and Countervailing Duty Order · source
- 2026-08483 Agency Information Collection Activities: Requests for Comments; Clearance of a New Approval of Information Collection: Reauthorization Sect · source
- 2026-05316 Center for Scientific Review; Notice of Closed Meetings · source
- 2026-05906 Notice Pursuant to the National Cooperative Research and Production Act of 1993-Biopharmaceutical Manufacturing Preparedness Consortium · source
Trades & Services
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