With 90,560 people, Northumberland County is a county in Pennsylvania. 19% of adults hold a bachelor's degree, below the 36% national rate. At a median age of 44.5, this is an older place than the country as a whole. Home values have more than doubled since 2000, reaching $162,400. 2% of people here were born outside the United States. Owners hold 75% of the housing stock.
At a glance
Lower income
median household income $60,583, below the US median
US median: $82,259
Older
median age 44.5
US median: 38.9
Less educated
19% hold a bachelor's degree
US average: 36%
Less affordable
home values up 27%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Northumberland County
What changed most since 1990
White share98.8% → 88.7%(−10.0 pts)US over the same years: −17.8 pts
Hispanic share0.5% → 5.2%(+4.7 pts)US over the same years: +9.9 pts
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)15.6%(904)
US avg: 26.4%
Gulf War (1990s)21.5%(1,245)
US avg: 24.3%
Vietnam era35.9%(2,076)
US avg: 33.1%
Korean War3.5%(205)
US avg: 4.5%
World War II1.3%(76)
US avg: 1%
Share of the 5,786 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
Northumberland County, decade by decade
Northumberland 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
96,771
$53,099
$93,843
8.6%
3.1
2000
94,556
$57,043
$127,516
11.1%
8.4
2010
94,528
$55,222
$134,506
13.5%
13.7
2020
91,647
$59,721
$145,202
17.9%
25.3
2024
90,560
$60,583
$162,400
19.4%
26.0
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 Northumberland County, Pennsylvania?
Northumberland County, Pennsylvania has about 90,560 residents according to the 2024 American Community Survey.
What is the median household income in Northumberland County, Pennsylvania?
The typical household in Northumberland County, Pennsylvania earns about $60,583 a year. Half of households make more than that, and half make less.
Is Northumberland County, Pennsylvania expensive?
In Northumberland County, Pennsylvania, the median home is worth about $162,400, and the typical rent is about $806 a month.
How educated are people in Northumberland County, Pennsylvania?
About 19.4% of adults age 25 and over in Northumberland County, Pennsylvania hold a bachelor's degree or higher.
What is the poverty rate in Northumberland County, Pennsylvania?
About 12.6% of people in Northumberland County, Pennsylvania live below the federal poverty line.
Has Northumberland County, Pennsylvania grown since 1990?
Yes, Northumberland County, Pennsylvania has shrunk since 1990. The population has lost about 6,211 residents, a change of about -6 percent over that period.
