Commercial Real Estate Market in Janesville, IA
Updated monthly: sale, lease, property records, location trend, and more… · Last update: August 31
31 active listings and 128 off-market properties in Janesville, IA.
Market Trends
Janesville, IA spans 30.4 square miles in Bremer County, Iowa. Figures below refresh monthly; last updated 31 August 2026.
Office
Office vacancy in Janesville, IA runs 21.3% across the Midwest region in 2025, up from 13.7% in 2019.
Vacancy Rate % in Midwest region
Retail
Retail vacancy in Janesville, IA runs 6.3% across the Midwest region in 2025, down from 8% in 2020.
Vacancy Rate % in Midwest region
Industrial
Industrial vacancy in Janesville, IA runs 4.9% across the Midwest region in 2025, up from 4.4% in 2019. Nearly 1.6x the 2022 low of 3.1%.
Vacancy Rate % in Midwest region
Multifamily
Multifamily vacancy in Janesville, IA runs 8% across the Midwest region in 2025, up from 6.5% in 2022.
Vacancy Rate % in Midwest region
Zoning & Land Use
Land Use Mix share of zoned land by category
- Residential 51.1%
- Agricultural 22%
- Commercial 4.6%
- Open space 3.6%
- Industrial 3.4%
Largest Zones share of zoned land by district
R1
Exclusive Agricultural District
M2
Lowland Conservancy Overlay District
Highland Conservation District
Market overview
Demographics & Economy
Janesville, IA has 1,989 residents in 913 households. Density runs 65 people per square mile. Median household income here is $98,052 and median gross rent $607 a month.
1,989
Population
913
Households
2.2
Avg Household Size
44
Median Age
28%
College-Educated
97%
High-School Grad
30.4 sq mi
ZIP Area
65
Density / Sq Mi
$98,052
Median Household Income
$54,792
Median Earnings
$607
Median Rent
$278,200
Median Home Value
Tools
Nearby Markets
| Market | Average Sale Price, $/SF | Average Lease Price, $/SF/Yr |
|---|---|---|
| Finchford | — | — |
| Cedar Falls | — | $16.50 |
| Horton | — | — |
| Denver | — | — |
Commercial property in Janesville, IA asks $1,974/SF.
Frequently Asked Questions
What is the average price per square foot for commercial property in Janesville?
Commercial property in Janesville, IA asks an average of $1,974 per square foot. The 4 most recent recorded sales traded at a median of $33/SF, so asking sits 5823% above the achieved median.
Where does Realmo's Janesville market data come from?
Realmo compiles Janesville, IA figures from 4 recent recorded sales, 31 active sale listings, 128 tracked off-market properties, the current Janesville zoning release. Sale and lease figures refresh monthly; vacancy annually. Last updated 31 August 2026.
Methodology & data sources
- Asking prices and averages
- Computed from 31 active for-sale and 0 active for-lease listings in Janesville, IA. These are ASKING figures from live listings, not closed-transaction prices, and a segment carried by a handful of listings reads as indicative rather than an average.
- Vacancy rates
- Published per-sector market series, taken at the metro level where one exists and otherwise at the Census-region level — a chart reading "in <region> region" is a regional number, not this city's.
- Zoning and land use
- The current municipal zoning release: 700 zoned acres across 9 districts. Shares are of zoned land, so parcels the release leaves unclassified are excluded from the mix.
- Refresh
- The monthly aggregates close at the end of the previous month, so 31 August 2026 — not today — is the honest last update.
- Known limitations
- office vacancy is reported at Midwest region level, retail vacancy is reported at Midwest region level, industrial vacancy is reported at Midwest region level and asking prices run materially above recent closed pricing.
- Coverage
- Metrics below the 10-observation threshold fall back one geographic level. The geography used is named on each figure.
Compiled by the Realmo Data team · reviewed 31 August 2026 · report a data issue
