Commercial Real Estate Market in Alton, IL
Updated monthly: sale, lease, property records, location trend, and more… · Last update: August 31
128 active listings and 1,392 off-market properties in Alton, IL. Commercial property asks $29/SF to buy and $13.24/SF/Yr to lease.
Market Trends
Alton, IL spans 41.3 square miles in Madison County, Illinois. Figures below refresh monthly; last updated 31 August 2026.
Office
Office vacancy in Alton, 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 Alton, IL runs 6.3% across the Midwest region in 2025, down from 8% in 2020.
Vacancy Rate % in Midwest region
Industrial
Industrial vacancy in Alton, 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 space in Alton, IL asks $60/SF to buy. Vacancy runs 8% across the Midwest region in 2025, up from 6.5% in 2022.
Average Sale Price $/SF
Listings
Vacancy Rate % in Midwest region
Zoning & Land Use
Land Use Mix share of zoned land by category
- Residential 52.4%
- Industrial 15.1%
- Open space 15.1%
- Commercial 13.3%
- Civic 3.5%
- Mixed use 0.6%
Largest Zones share of zoned land by district
Single Family Residential
Conservation And Recreation
Single Family Residential
General Commercial
General Industrial
Alton, IL zones 10,016 acres across 19 districts. Commercial zoning covers 13.3% of zoned land, residential 52.4%, open space 15.1% and industrial 15.1%. The largest single district is Single Family Residential at 35.1%. For commercial buyers the practical constraint is that only 28.4% of land carries a commercial or industrial designation.
Single Family Residential (R-2)
Rezoning property commonly known as 1401 Washington, Alton, Illinois, from R-2 (Single-Family Residential) to C-2 (General Commercial) 10-13-2021 7815 Rezoning property commonly known as 1840 N. Rodgers, Alton, Illinois, from C-2 (General Commercial) to R-2 (Single-Family Residential) 10-27-2021 7854 Rezoning 1719 Clawson Street, Alton, Illinois from R-2 (Si…
Market overview
Demographics & Economy
Alton, IL has 30,176 residents in 14,832 households. Density runs 731 people per square mile. Median household income here is $57,851 and median gross rent $941 a month.
30,176
Population
14,832
Households
2
Avg Household Size
41
Median Age
24%
College-Educated
92%
High-School Grad
41.3 sq mi
ZIP Area
731
Density / Sq Mi
$57,851
Median Household Income
$38,120
Median Earnings
$941
Median Rent
$114,300
Median Home Value
Tools
Nearby Markets
| Market | Average Sale Price, $/SF | Average Lease Price, $/SF/Yr |
|---|---|---|
| West Alton | — | — |
| East Alton | — | — |
| Godfrey | — | $8.00 |
| Wood River | — | — |
Commercial property in Alton, IL asks $29/SF.
Frequently Asked Questions
What is the average price per square foot for commercial property in Alton?
Commercial property in Alton, IL asks an average of $29 per square foot. The 4 most recent recorded sales traded at a median of $59/SF. Multifamily carries the highest asking price at $60/SF.
How much does it cost to lease commercial space in Alton?
Asking lease rates in Alton, IL average $13.24 per square foot per year.
What zoning applies to commercial property in Alton?
Alton, IL zones 10,016 acres across 19 districts, of which 13.3% is commercial and 15.1% industrial. The largest single district is Single Family Residential at 35.1% of zoned land. Rezoning property commonly known as 1401 Washington, Alton, Illinois, from R-2 (Single-Family Residential) to C-2 (General Commercial) 10-13-2021 7815 Rezoning property commonly known as 1840 N. Rodgers, Alton, Illinois, from C-2 (General Commercial) to R-2 (Single-Family Residential) 10-27-2021 7854 Rezoning 1719 Clawson Street, Alton, Illinois from R-2 (Si… Residential zoning covers 52.4% and open space 15.1%.
Where does Realmo's Alton market data come from?
Realmo compiles Alton, IL figures from 7 recent recorded sales, 83 active sale listings, 45 active lease listings, 1,392 tracked off-market properties, the current Alton zoning release. Sale and lease figures refresh monthly; vacancy annually. Last updated 31 August 2026.
Methodology & data sources
- Asking prices and averages
- Computed from 83 active for-sale and 45 active for-lease listings in Alton, IL. 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: 10,016 zoned acres across 19 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
