Delaware   County IA United States

County FIPS 19055
Largest City Manchester
State Iowa
Latitude 42.4712
Longitude -91.3673
Population 17,558
Density 30.41 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.
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Household Income

Median household: $74,989
Median individual: $41,742

Race

Mode: 94.2% White

Gender

 51.1% male 

Rent

  $764 / month  

Median house value: $180,772.0

Age

Median: 43.4 years old

Education

With at least college degree: 22.6%
With STEM degree: 43.2%

Marital Status

 58.9% married 

Never married: 23.2%

Labor Force Participation

 69.6% working 

Unemployed: 2.0%

Average Family Size

 2.96 people 

Commute Time

 20.3 minutes 

Health Care

 3.3% uninsured 

Poverty

 7.8%

All data comes from the SimpleMaps US Counties Database, 2026.

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