Commercial Real Estate Market in O Fallon, MO
Updated monthly: sale, lease, property records, location trend, and more… · Last update: September 30
259 active listings and 2,296 off-market properties in O Fallon, MO. Commercial property asks $204/SF to buy and $36.35/SF/Yr to lease.
Market Trends
O Fallon, MO spans 138.6 square miles in St. Charles County, Missouri. Figures below refresh monthly; last updated 30 September 2026.
Office
Office vacancy in O Fallon, MO runs 21.3% across the Midwest region in 2025, up from 13.7% in 2019.
Vacancy Rate % in Midwest region
Retail
Retail vacancy in O Fallon, MO runs 6.3% across the Midwest region in 2025, down from 8% in 2020.
Vacancy Rate % in Midwest region
Industrial
Industrial vacancy in O Fallon, MO 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 O Fallon, MO runs 8% across the Midwest region in 2025, up from 6.5% in 2022.
Vacancy Rate % in Midwest region
Market overview
Demographics & Economy
O Fallon, MO has 202,941 residents in 80,121 households. Density runs 1,464 people per square mile. Median household income here is $106,542 and median gross rent $1,380 a month.
202,941
Population
80,121
Households
2.5
Avg Household Size
39
Median Age
41%
College-Educated
96%
High-School Grad
138.6 sq mi
ZIP Area
1,464
Density / Sq Mi
$106,542
Median Household Income
$54,198
Median Earnings
$1,380
Median Rent
$296,108
Median Home Value
Tools
Frequently Asked Questions
What is the average price per square foot for commercial property in O Fallon?
Commercial property in O Fallon, MO asks an average of $204 per square foot.
How much does it cost to lease commercial space in O Fallon?
Asking lease rates in O Fallon, MO average $36.35 per square foot per year.
Where does Realmo's O Fallon market data come from?
Realmo compiles O Fallon, MO figures from 160 active sale listings, 99 active lease listings, 2,296 tracked off-market properties. Sale and lease figures refresh monthly; vacancy annually. Last updated 30 September 2026.
Methodology & data sources
- Asking prices and averages
- Computed from 160 active for-sale and 99 active for-lease listings in O Fallon, MO. 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.
- Refresh
- The monthly aggregates close at the end of the previous month, so 30 September 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 30 September 2026 · How Realmo checks market page data · Report a data issue
