Somerset County is home to 349,846 people in New Jersey. This is an unusually credentialed place: 58% of adults have a four-year degree. Few US counties rank higher on income. Median household income runs $140,374, well clear of the $82,259 US median. The foreign-born share is 28%. Households here earn about 36% more than in New Jersey as a whole.
At a glance
Wealthier
median household income $140,374, above the US median
US median: $82,259
Older
median age 41.8
US median: 38.9
More educated
58% hold a bachelor's degree
US average: 36%
Less affordable
home values up 36%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Somerset County
What changed most since 1990
White share85.2% → 49.3%(−36.0 pts)US over the same years: −17.8 pts
Asian share4.4% → 19.6%(+15.2 pts)US over the same years: +3.1 pts
Median home value (2024 dollars)$467,533 → $552,100(+18%)US over the same years: +67%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)22.4%(1,990)
US avg: 26.4%
Gulf War (1990s)15.5%(1,375)
US avg: 24.3%
Vietnam era34.3%(3,044)
US avg: 33.1%
Korean War7.8%(693)
US avg: 4.5%
World War II2.8%(249)
US avg: 1%
Share of the 8,875 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Somerset County, decade by decade
Somerset County population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
240,279
$133,249
$467,533
38.3%
33.3
2000
297,490
$140,145
$405,136
46.5%
53.8
2010
323,444
$140,174
$620,312
49.8%
70.8
2020
345,361
$141,215
$529,297
55.6%
82.8
2024
349,846
$140,374
$552,100
57.8%
84.7
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
How many people live in Somerset County, New Jersey?
Somerset County, New Jersey has about 349,846 residents according to the 2024 American Community Survey.
What is the median household income in Somerset County, New Jersey?
The typical household in Somerset County, New Jersey earns about $140,374 a year. Half of households make more than that, and half make less.
Is Somerset County, New Jersey expensive?
In Somerset County, New Jersey, the median home is worth about $552,100, and the typical rent is about $2,033 a month.
How educated are people in Somerset County, New Jersey?
About 57.8% of adults age 25 and over in Somerset County, New Jersey hold a bachelor's degree or higher.
What is the poverty rate in Somerset County, New Jersey?
About 5.4% of people in Somerset County, New Jersey live below the federal poverty line.
Has Somerset County, New Jersey grown since 1990?
Yes, Somerset County, New Jersey has grown since 1990. The population has added about 109,567 residents, a change of about 46 percent over that period.