Londonderry township Flag

Londonderry township

County:
Dauphin County
County Seat:
No
Area (mi²):
22.76
State:
Pennsylvania

Londonderry township is located in Dauphin County, Pennsylvania. Londonderry township has a 2025 population of 4,878. Londonderry township is currently declining at a rate of -0.06% annually and its population has decreased by -0.41% since the most recent census, which recorded a population of 4,898 in 2020.

The average household income in Londonderry township is $103,432 with a poverty rate of 4.33%. The median age in Londonderry township is 39.6 years: 40.4 years for males, and 38.3 years for females.

4.9K
Total Population
214
Density (mi²)
-3 -0.06%
Growth

Londonderry township Population

Londonderry township Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Londonderry township includes 81.04% White, 7.58% other race, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Race
Population
Percentage (of total)
White3,96781.04%
Two or more races52910.81%
Other race3717.58%
Black or African American280.57%
Native American00%
Asian00%
Native Hawaiian or Pacific Islander00%

Londonderry township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Londonderry township's average per capita income is $49,556. Household income levels show a median of $84,699. The poverty rate stands at 4.33%.

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$103,438-
Families$100,268$121,186
Households$84,699$103,432
Non Families$44,080$58,343

$49,556

Average Income

$84,699

Median Household Income

4.33%

Poverty Rate

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)