South Londonderry township Flag

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 2026 population of 9,141. South Londonderry township is currently growing at a rate of 1.22% annually and its population has increased by 4.04% since the most recent census, which recorded a population of 8,786 in 2020.

The median household income in South Londonderry township is $112,374 with a poverty rate of 6.31%. The median age in South Londonderry township is 38.6 years: 38.6 years for males, and 38.5 years for females. For every 100 females there are 95.2 males.

9.1K
Total Population
375
Density (mi²)
110 1.22%
Growth

South Londonderry township Population

South Londonderry township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20269,1411101.22%
20259,0311101.23%
20248,9211101.25%
20238,811-1-0.01%
20228,812-12-0.14%
20218,824380.43%
20208,78620.02%
20198,493260.31%
20188,4672473%
20178,2202873.62%
20167,9332222.88%
20157,7112092.79%
20147,5022313.18%
20137,271861.2%
20127,185640.9%
20117,1211301.86%
20107,009130.19%

Median Age

Overall: 38.6 years
Female: 38.5 years
Male: 38.6 years

South Londonderry township Adults

There are 6,482 adults, (1,459 of whom are seniors) in South Londonderry township.

Sex Ratio

Female: 4,519 (51.2%)
Male: 4,304 (48.8%)

Demographics

The racial composition of South Londonderry township includes 86.65% White, 4.62% other race, 3.75% Asian, and smaller percentages for Black or African American, Two or more races and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White7,64586.65%
Other race4084.62%
Asian3313.75%
Black or African American2212.5%
Two or more races2182.47%
Race
Population ↓
Percentage (of total)
Other race3814.32%
White430.49%
Two or more races160.18%
Race
Population ↓
Percentage (of total)
White7,60286.16%
Asian3313.75%
Black or African American2212.5%
Two or more races2022.29%
Other race270.31%

South Londonderry township Marital Status

Economics and Income Statistics

South Londonderry township 's average per capita income is $66,551. Household income levels show a median of $112,374. The poverty rate stands at 6.31%.

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$136,439-
Families$127,588$146,206
Households$112,374$131,077
Non Families$75,841$84,018

$66,551

Average Income

$112,374

Median Household Income

6.31%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)