Commercial Real Estate Market in Alton, IA
Updated monthly: sale, lease, property records, location trend, and more… · Last update: August 31
1 active listing and 186 off-market properties in Alton, IA.
Market Trends
Alton, IA spans 54.4 square miles in Sioux County, Iowa. Figures below refresh monthly; last updated 31 August 2026.
Office
Office vacancy in Alton, IA 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, IA runs 6.3% across the Midwest region in 2025, down from 8% in 2020.
Vacancy Rate % in Midwest region
Industrial
Industrial vacancy in Alton, IA 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 Alton, IA 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
- Agricultural 47.2%
- Residential 27.8%
- Industrial 17.9%
- Commercial 7.1%
Largest Zones share of zoned land by district
Agriculture
Low Density Residential
Heavy Industrial
Highway Commercial
High Density Residential
Market overview
Demographics & Economy
Alton, IA has 1,719 residents in 762 households. Density runs 32 people per square mile. Median household income here is $85,909 and median gross rent $750 a month.
1,719
Population
762
Households
2.3
Avg Household Size
38
Median Age
27%
College-Educated
96%
High-School Grad
54.4 sq mi
ZIP Area
32
Density / Sq Mi
$85,909
Median Household Income
$46,024
Median Earnings
$750
Median Rent
$226,300
Median Home Value
Tools
Nearby Markets
| Market | Average Sale Price, $/SF | Average Lease Price, $/SF/Yr |
|---|---|---|
| Orange City | — | — |
| Carnes | — | — |
| Newkirk | — | — |
| Granville | — | — |
Frequently Asked Questions
Where does Realmo's Alton market data come from?
Realmo compiles Alton, IA figures from 7 recent recorded sales, 1 active sale listings, 186 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 1 active for-sale and 0 active for-lease listings in Alton, IA. 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: 1,281 zoned acres across 9 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
