South Londonderry township

County:: Lebanon County
County Seat:: No
Area (mi²):: 24.351
State:: Pennsylvania

South Londonderry township is located in Lebanon County, Pennsylvania. South Londonderry township has a 2025 population of 8,765. South Londonderry township is currently declining at a rate of -0.17% annually and its population has decreased by -0.24% since the most recent census, which recorded a population of 8,786 in 2020.

The average household income in South Londonderry township is $120,679 with a poverty rate of 5.03%. The median age in South Londonderry township is 37.9 years: 35 years for males, and 38.8 years for females.

Demographics

The racial composition of South Londonderry township includes 87.03% White, 4.79% Asian, 3.67% other race, and smaller percentages for Two or more races, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Asian

Other race

Two or more races

Black or African American

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	7,633	87.03%
Asian	420	4.79%
Other race	322	3.67%
Two or more races	214	2.44%
Black or African American	182	2.08%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

South Londonderry township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

South Londonderry township's average per capita income is $63,030. Household income levels show a median of $100,208. The poverty rate stands at 5.03%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$132,975	-
Families	$109,691	$135,629
Households	$100,208	$120,679
Non Families	$72,528	$74,378

$63,030

Average Income

$100,208

Median Household Income

5.03%

Poverty Rate