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Alton, IA
City in Sioux County, Iowa.
Population
1,459
Land area
1.9sq mi
People per sq mi
764
ZIP codes
0
Alton and its ZIP codes
Alton at a glance
- Alton is about 13 times as dense as Iowa as a whole.
- Households here earn a median of $98,036 a year, 31% more than the Iowa figure of $75,059.
- A typical owner-occupied home is valued at $218,900 (5% above Iowa) and median rent is $813 a month.
Local data for Alton, IA
Counts from official public data
Housing and community stats
Alton, IA, American Community Survey 2020-2024
Median household income
$98,036
Poverty rate
2.6%
Median home value
$218,900
Median rent
$813/mo
Homeownership
87.8%
Bachelor's or higher
24.3%
Median age
38.1
Average commute
14.7 min
Largest reported origins and ancestries: German Americans (584), Dutch Americans (361), Mexican Americans (68).
Economy and federal money
Jobs, pay, income and spending are for Sioux County. PPP loans are for Alton.
Unemployment rate
2.2%
Aug 2026, +0.2 pts in a year
Average annual pay
$57,985
23,005 jobs, 2025
Income per person
$72,752
BEA, 2024
Federal spending
$201M
FY 2026, $5,600 per person
How people get to work
Alton, IA, workers 16 and older. American Community Survey 5-year estimates
- Drove alone90.3%
- Carpooled3.5%
- Public transit0.3%
- Walked1.1%
- Bicycle0.2%
- Taxi, ride-hailing, motorcycle or other0.2%
- Worked from home4.3%
Average one-way commute: 14.7 minutes for people who do not work from home.
Environment and hazard risk
Alton, IA, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: hail
Storm events since 1996
958
Countywide, mostly hail
Flood insurance policies
151
1.2% of homes, county
July high / Jan low
85° / 9°F
29.8 inches of rain a year
Health statistics
Share of adults in Alton, IA, CDC PLACES estimates
Obesity
33.7%
U.S. 33.3% about the same
Diabetes
9.6%
U.S. 12.1% -2.5 pts
Smoking
12.9%
U.S. 12.8% about the same
Uninsured (18-64)
6.3%
U.S. 11.1% -4.8 pts
Cities near Alton
| Name | Distance | Land area (sq mi) |
|---|---|---|
| Orange CityCity | 2.6 mi | 4.6 |
| GranvilleCity | 6.8 mi | 0.3 |
| HospersCity | 7.8 mi | 0.5 |
| MauriceCity | 9 mi | 0.6 |
| Sioux CenterCity | 10 mi | 6.4 |
| StrubleCity | 12 mi | 0.2 |
| RemsenCity | 12 mi | 1.5 |
| OyensCity | 12 mi | 0.1 |
| BoydenCity | 14 mi | 0.7 |
| HullCity | 15 mi | 1.4 |
| MarcusCity | 15 mi | 1.5 |
| SheldonCity | 15 mi | 4.8 |
| IretonCity | 16 mi | 1 |
| ArcherCity | 16 mi | 0.1 |
| PaullinaCity | 17 mi | 0.9 |
| CraigCity | 17 mi | 0.1 |
Frequently asked questions
- What county is Alton, IA in?
- Alton is in Sioux County, Iowa.
- What is the population of Alton, IA?
- About 1,459 people live in Alton, based on American Community Survey 5-year estimates.
- What cities are near Alton?
- Nearby places include Orange City (2.6 mi), Granville (6.8 mi), Hospers (7.8 mi), Maurice (9 mi), Sioux Center (10 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023