South Williamsport is home to 6,211 people in Pennsylvania. Home values have more than doubled since 2000, reaching $180,800. The foreign-born share is 3%. At a median age of 43.0, this is an older place than the country as a whole. There are 3,271 people per square mile. The poverty rate is 4.4%, under the national 12.5%.
At a glance
Lower income
median household income $64,583, below the US median
US median: $82,259
Older
median age 43.0
US median: 38.9
Less educated
29% hold a bachelor's degree
US average: 36%
Less affordable
home values up 31%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about South Williamsport
What changed most since 1990
White share99.3% → 91.4%(−7.9 pts)US over the same years: −17.8 pts
Homes owned by their occupants70.3% → 65.1%(−5.1 pts)US over the same years: +0.9 pts
South Williamsport's population equals 5.5% of Lycoming County's. Its number of residents living in poverty equals 1.9% of the county's. Its number of foreign-born residents equals 9.5% of the county's.
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)26.4%(130)
US avg: 26.4%
Gulf War (1990s)13.8%(68)
US avg: 24.3%
Vietnam era33.5%(165)
US avg: 33.1%
Korean War8.7%(43)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 493 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
South Williamsport, decade by decade
South Williamsport 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
6,496
$61,799
$115,683
11.7%
1.8
2000
6,412
$61,969
$137,535
15.8%
4.4
2010
6,379
$70,077
$154,215
22.3%
7.5
2020
6,261
$66,383
$182,412
26.0%
21.7
2024
6,211
$64,583
$180,800
29.2%
20.4
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 South Williamsport, Pennsylvania?
South Williamsport, Pennsylvania has about 6,211 residents according to the 2024 American Community Survey.
What is the median household income in South Williamsport, Pennsylvania?
The typical household in South Williamsport, Pennsylvania earns about $64,583 a year. Half of households make more than that, and half make less.
Is South Williamsport, Pennsylvania expensive?
In South Williamsport, Pennsylvania, the median home is worth about $180,800, and the typical rent is about $1,067 a month.
How educated are people in South Williamsport, Pennsylvania?
About 29.2% of adults age 25 and over in South Williamsport, Pennsylvania hold a bachelor's degree or higher.
What is the poverty rate in South Williamsport, Pennsylvania?
About 4.4% of people in South Williamsport, Pennsylvania live below the federal poverty line.
Has South Williamsport, Pennsylvania grown since 1990?
Yes, South Williamsport, Pennsylvania has shrunk since 1990. The population has lost about 285 residents, a change of about -4 percent over that period.
