Commercial Real Estate Market in Rock City, IL
Updated monthly: sale, lease, property records, location trend, and more… · Last update: August 31
Market Trends
Rock City, IL spans 32.4 square miles in Stephenson County, Illinois. Figures below refresh monthly; last updated 31 August 2026.
Office
Office vacancy in Rock City, IL runs 21.3% across the Midwest region in 2025, up from 13.7% in 2019.
Vacancy Rate % in Midwest region
Retail
Retail vacancy in Rock City, IL runs 6.3% across the Midwest region in 2025, down from 8% in 2020.
Vacancy Rate % in Midwest region
Industrial
Industrial vacancy in Rock City, IL 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 Rock City, IL runs 8% across the Midwest region in 2025, up from 6.5% in 2022.
Vacancy Rate % in Midwest region
Market overview
Demographics & Economy
Rock City, IL has 1,109 residents in 600 households. Density runs 34 people per square mile. Median household income here is $83,542 and median gross rent $845 a month.
1,109
Population
600
Households
1.8
Avg Household Size
43
Median Age
29%
College-Educated
95%
High-School Grad
32.4 sq mi
ZIP Area
34
Density / Sq Mi
$83,542
Median Household Income
$46,796
Median Earnings
$845
Median Rent
$173,000
Median Home Value
Tools
Nearby Markets
| Market | Average Sale Price, $/SF | Average Lease Price, $/SF/Yr |
|---|---|---|
| Davis | — | — |
| Dakota | — | — |
| Rock Grove | — | — |
| Durand | — | — |
Methodology & data sources
- 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.
- 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 and industrial vacancy is reported at Midwest region level.
- 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
