Commercial Real Estate Market in Rio, IL
Updated monthly: sale, lease, property records, location trend, and more… · Last update: August 31
Market Trends
Rio, IL spans 39.2 square miles in Knox County, Illinois. Figures below refresh monthly; last updated 31 August 2026.
Office
Office vacancy in Rio, 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 Rio, IL runs 6.3% across the Midwest region in 2025, down from 8% in 2020.
Vacancy Rate % in Midwest region
Industrial
Industrial vacancy in Rio, 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 Rio, IL 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 65.5%
- Agricultural 24%
- Commercial 10.6%
Largest Zones share of zoned land by district
Rural Residential
Agriculture
Restricted Business
Highway Business
Rio, IL zones 200 acres across 4 districts. Commercial zoning covers 10.6% of zoned land, residential 65.5%. The largest single district is Rural Residential at 65.5%. For commercial buyers the practical constraint is that only 10.6% of land carries a commercial or industrial designation.
Rural Residential (R)
District is intended to provide rural residential related uses
Market overview
Demographics & Economy
Rio, IL has 614 residents in 223 households. Density runs 16 people per square mile. Median household income here is $80,192 and median gross rent $771 a month.
614
Population
223
Households
2.8
Avg Household Size
47
Median Age
29%
College-Educated
92%
High-School Grad
39.2 sq mi
ZIP Area
16
Density / Sq Mi
$80,192
Median Household Income
$49,554
Median Earnings
$771
Median Rent
$149,400
Median Home Value
Tools
Nearby Markets
| Market | Average Sale Price, $/SF | Average Lease Price, $/SF/Yr |
|---|---|---|
| North Henderson | — | — |
| Alpha | — | — |
| Henderson Grove | — | — |
| Henderson | — | — |
Frequently Asked Questions
What zoning applies to commercial property in Rio?
Rio, IL zones 200 acres across 4 districts, of which 10.6% is commercial and 0% industrial. The largest single district is Rural Residential at 65.5% of zoned land. District is intended to provide rural residential related uses Residential zoning covers 65.5% and open space 0%.
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.
- Zoning and land use
- The current municipal zoning release: 200 zoned acres across 4 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 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
