Marshall   County IA United States

County FIPS 19127
Largest City Marshalltown
State Iowa
Latitude 42.0358
Longitude -92.9988
Population 40,114
Density 70.08 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: $73,315
Median individual: $39,227

Race

Mode: 70.6% White

Gender

 50.7% male 

Rent

  $885 / month  

Median house value: $142,965.0

Age

Median: 38.5 years old

Education

With at least college degree: 22.5%
With STEM degree: 40.8%

Marital Status

 52.3% married 

Never married: 28.8%

Labor Force Participation

 66.7% working 

Unemployed: 4.3%

Average Family Size

 3.18 people 

Commute Time

 19.9 minutes 

Health Care

 5.8% uninsured 

Poverty

 11.2%

All data comes from the SimpleMaps US Counties Database, 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.