Marshallton CDP (Northumberland County) is home to 1,187 people in Pennsylvania. 10% of adults hold a bachelor's degree, below the 36% national rate. At a median age of 47.8, this is an older place than the country as a whole. Home values have more than doubled since 2000, reaching $83,400. The foreign-born share is 0%. That trails the Pennsylvania median by roughly 33%.
At a glance
Lower income
median household income $52,411, below the US median
US median: $82,259
Older
median age 47.8
US median: 38.9
Less educated
10% hold a bachelor's degree
US average: 36%
Less affordable
home values up 28%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Marshallton CDP (Northumberland County)
What changed most since 1990
Homes owned by their occupants88.4% → 73.7%(−14.7 pts)US over the same years: +0.9 pts
Population1,482 → 1,187(−20%)US over the same years: +35%
Adults with a bachelor's degree4.0% → 10.3%(+6.4 pts)US over the same years: +15.3 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)41.2%(21)
US avg: 26.4%
Gulf War (1990s)25.5%(13)
US avg: 24.3%
Vietnam era27.5%(14)
US avg: 33.1%
Korean War0%(0)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 51 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
Marshallton CDP (Northumberland County), decade by decade
Marshallton CDP (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
1,482
$45,301
$54,962
4.0%
3.0
2000
1,437
$42,213
$65,033
6.0%
2.4
2010
1,441
$46,050
$65,311
12.9%
5.5
2020
1,348
$45,148
$67,753
10.3%
24.6
2024
1,187
$52,411
$83,400
10.3%
0.0
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.
Drill deeper
Places similar to Marshallton CDP (Northumberland County)
How many people live in Marshallton CDP (Northumberland County), Pennsylvania?
Marshallton CDP (Northumberland County), Pennsylvania has about 1,187 residents according to the 2024 American Community Survey.
What is the median household income in Marshallton CDP (Northumberland County), Pennsylvania?
The typical household in Marshallton CDP (Northumberland County), Pennsylvania earns about $52,411 a year. Half of households make more than that, and half make less.
Is Marshallton CDP (Northumberland County), Pennsylvania expensive?
In Marshallton CDP (Northumberland County), Pennsylvania, the median home is worth about $83,400, and the typical rent is about $773 a month.
How educated are people in Marshallton CDP (Northumberland County), Pennsylvania?
About 10.3% of adults age 25 and over in Marshallton CDP (Northumberland County), Pennsylvania hold a bachelor's degree or higher.
What is the poverty rate in Marshallton CDP (Northumberland County), Pennsylvania?
About 6.1% of people in Marshallton CDP (Northumberland County), Pennsylvania live below the federal poverty line.
Has Marshallton CDP (Northumberland County), Pennsylvania grown since 1990?
Yes, Marshallton CDP (Northumberland County), Pennsylvania has shrunk since 1990. The population has lost about 295 residents, a change of about -20 percent over that period.
