51109   Zip Code Sioux City Plymouth IA United States

City Sioux City
County Plymouth
State Iowa
Latitude 42.59873
Longitude -96.47804
Population 3,606
Density 204.92 people per square mile
Time Zone America/Chicago
  • All demographic data comes from the 2024 American Community Survey (5-year study).
  • Learn more about each field.
Download the data

Household Income

Median household: $79,034
Median individual: $44,003

Race

Mode: 74.9% White

Gender

 50.6% male 

Rent

  $627 / month  

Median house value: $134,453.0

Age

Median: 39.4 years old

Education

With at least college degree: 3.3%
With STEM degree: 29.9%

Marital Status

 43.8% married 

Never married: 39.4%

Labor Force Participation

 66.1% working 

Unemployed: 1.9%

Average Family Size

 3.27 people 

Commute Time

 16.4 minutes 

Health Care

 9.6% uninsured 

Poverty

 16.1%

All data comes from the SimpleMaps US Zips Comprehensive Database, February 2026.

Home (Maps) | Database License | Privacy | Database Releases | Database Order Lookup | Resources | Contact | FAQs
SimpleMaps.com is a product of Pareto Software, LLC. © 2010-2026.