27577   Zip Code Smithfield Johnston NC United States

City Smithfield
County Johnston
State North Carolina
Latitude 35.49166
Longitude -78.3446
Population 28,354
Density 273.58 people per square mile
Time Zone America/New York
  • 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: $62,758
Median individual: $36,256

Race

Mode: 62.9% White

Gender

 50.4% female 

Rent

  $837 / month  

Median house value: $253,899.0

Age

Median: 41.3 years old

Education

With at least college degree: 20.3%
With STEM degree: 42.6%

Marital Status

 51.8% married 

Never married: 29.1%

Labor Force Participation

 57.3% working 

Unemployed: 5.4%

Average Family Size

 3.20 people 

Commute Time

 27.0 minutes 

Health Care

 13.7% uninsured 

Poverty

 18.4%

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

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