Commercial Real Estate Market in Alton, IL
Updated monthly: sale, lease, property records, location trend, and more… · Last update: October 31
88 active listings and 1,392 off-market properties in Alton, IL. Commercial property asks $68/SF to buy and $13.00/SF/Yr to lease.
Market Trends
Alton, IL spans 41.3 square miles in Madison County, Illinois. Figures below refresh monthly; last updated 31 October 2026.
Office
Office vacancy in Alton, IL runs 21.3% across the Midwest region in 2025, up from 13.7% in 2019.
Retail
Retail vacancy in Alton, IL runs 6.3% across the Midwest region in 2025, down from 8% in 2020.
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%.
Multifamily
Multifamily space in Alton, IL has a median asking sale price of $67/SF (based on 6 listings). Vacancy runs 8% across the Midwest region in 2025, up from 6.5% in 2022.
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
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.
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.
Tools
Frequently Asked Questions
What is the median price per square foot for commercial property in Alton?
How much does it cost to lease commercial space in Alton?
What zoning applies to commercial property in Alton?
Where does Realmo's Alton market data come from?
Methodology & data sources
- Asking prices and medians
- There are 47 active for-sale and 41 active for-lease listings in Alton, IL. The medians are based on 10 of the for-sale and 21 of the for-lease listings, those that state a price or rent per square foot. These are ASKING figures from live listings, not closed-transaction prices, and a figure resting on fewer than 10 listings says so where it is quoted.
- 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 October 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 October 2026 · How Realmo checks market page data · Report a data issue
