Northumberland   County VA United States

County FIPS 51133
Largest City Kilmarnock
State Virginia
Latitude 37.8873
Longitude -76.4195
Population 12,188
Density 63.68 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: $66,480
Median individual: $36,499

Race

Mode: 69.3% White

Gender

 52.3% female 

Rent

  $1038 / month  

Median house value: $348,286.0

Age

Median: 59.5 years old

Education

With at least college degree: 33.6%
With STEM degree: 39.5%

Marital Status

 53.3% married 

Never married: 24.8%

Labor Force Participation

 42.5% working 

Unemployed: 3.8%

Average Family Size

 2.67 people 

Commute Time

 32.8 minutes 

Health Care

 6.6% uninsured 

Poverty

 11.5%

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

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