South Londonderry, Pennsylvania Population 2024

8,791

South Londonderry is a city located in Pennsylvania. South Londonderry has a 2024 population of 8,791. South Londonderry is currently declining at a rate of -0.14% annually but its population has increased by 0.08% since the most recent census, which recorded a population of 8,784 in 2020.

The average household income in South Londonderry is $107,676 with a poverty rate of 8.72%. The median age in South Londonderry is 35.6 years: 35 years for males, and 35.7 years for females.

South Londonderry Demographics

According to the most recent ACS, the racial composition of South Londonderry was:

  • White: 90.81%
  • Other race: 5.18%
  • Asian: 2.24%
  • Two or more races: 1.23%
  • Black or African American: 0.54%
  • Native American: 0%
  • Native Hawaiian or Pacific Islander: 0%
Land Area (mi²)
24.4 sq mi
Density (mi²)
361.0/sq mi
Growth Since 2020
0.08% (7)
The current population of South Londonderry, Pennsylvania is 8,791 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 8,784.

Population by Race

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Race
Population
Percentage (of total)
White7,91790.81%
Other race4525.18%
Asian1952.24%
Two or more races1071.23%
Black or African American470.54%
Native American00%
Native Hawaiian or Pacific Islander00%

White

Other race

Asian

Two or more races

Black or African American

Native American

Native Hawaiian or Pacific Islander

South Londonderry Population by Race

South Londonderry Population Pyramid 2024

South Londonderry Median Age

35.6

Total

35

Male

35.7

Female

South Londonderry Adults

There are 6,182 adults, (1,289 of whom are seniors) in South Londonderry.

South Londonderry Age Dependency

78.2

Age Dependency Ratio

26.3

Old Age Dependency Ratio

51.8

Child Dependency Ratio

South Londonderry Sex Ratio

Female4,47751.35%
Male4,24148.65%

South Londonderry Population by Age

South Londonderry Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All3,0572.8373.926.1
Married1,7853.3793.56.5
Non Family7681.1355.244.8
Female3733.6831.668.4
Male1313.0536.663.4

3.34

Average Family Size

2.83

Average Household Size

73.9%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

South Londonderry Households and Families

Male

Female

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Education Attained
Count
Percentage
9th to 12th Grade1823.2%
Associates Degree4778.38%
Bachelors Degree1,46925.81%
Graduate Degree94716.64%
High School Graduate1,80031.62%
Less Than 9th Grade1592.79%
Some College65811.56%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

South Londonderry Educational Attainment by Sex (over 25)

South Londonderry Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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Race
Total
High School
Bachelors
White5,3685,1322,300
Hispanic1297330
Asian1228329
Other Race832721
Black473737
2+ Races313115

The highest rate of high school graduation is among 2+ races people with a rate of 100%.

The highest rate of bachelors degrees is among black people with a rate of 78.72%.

South Londonderry Educational Attainment by Race

All

Male

Female

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Name
Average
Male
Female
Bachelors Degree$63,169$64,375$61,899
Graduate Degree$79,968$79,724$81,625
High School Graduate$31,200$54,531$22,430
Less Than 9th Grade$43,173$55,278$0
Overall$60,739$66,174$47,554
Some College$65,982$72,470$42,446

$60,739

Average Earnings

$66,174

Average Male

$47,554

Average Female

South Londonderry Earnings by Educational Attainment

South Londonderry Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

South Londonderry Language

94.95% of South Londonderry residents speak only English, while 5.05% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 2.52% of the population.

South Londonderry Language

South Londonderry Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White7,7946237.99%
Other45212928.54%
Hispanic49812925.9%

8.72%

Overall Poverty Rate

10.41%

Male Poverty Rate

7.1%

Female Poverty Rate

Poverty in South Londonderry

The race most likely to be in poverty in South Londonderry is Other, with 28.54% below the poverty level.

The race least likely to be in poverty in South Londonderry is White, with 7.99% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0%. Among those working part-time, it was 14.17%, and for those that did not work, the poverty rate was 19.51%.

South Londonderry Poverty

rate

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Rate
Poverty
Less Than 9th Grade22.5%
High School19.85%
Some College2.29%
Bachelors or Greater2.19%

South Londonderry Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed63.38%
Male Employed2.5%
Female Employed1.84%
Male Unemployed0%

South Londonderry Poverty Rate by Employment Status and Sex

South Londonderry Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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Name
Median
Mean
Families$96,007$119,274
Households$80,893$107,676
Married Families$112,991$-999,999,999
Non Families$64,444$69,051

mean

median

Income by Household Type

South Londonderry Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

59.5%

Overall Marriage Rate

60.7%

Male Marriage Rate

58.3%

Female Marriage Rate

South Londonderry Married by Age and Sex

male

female

South Londonderry Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

South Londonderry Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

South Londonderry Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

385

Number of Veterans

359

Male Veterans

26

Female Veterans

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War
Veterans
First Gulf War141
Vietnam97
Second Gulf War68
Korea59
World War II24

South Londonderry Veterans by War

count

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Age Group
Veterans
35 to 54154
75+147
65 to 7463
55 to 6421
18 to 340

South Londonderry Veterans by Age

count

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Name
Veterans
% of Total
White3806.46%
Other Race56.02%

South Londonderry Veterans by Race

South Londonderry Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

2.67%

Veteran Poverty Rate

33.16%

Veteran Disability Rate

South Londonderry Veterans by Education

LaborForceParticipation

65.3%

Labor Force Participation

62.6%

Employment Rate

4.1%

Unemployment Rate

South Londonderry Employment by Age

LaborForceParticipation

South Londonderry Employment by Race

LaborForceParticipation

South Londonderry Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

68.08%

Born in South Londonderry

95.88%

Native Born

4.12%

Foreign Born

1.82%

Non Citizen

2.29%

Naturalized

Place of Birth

95.88% of South Londonderry residents were born in the United States, with 68.08% having been born in Pennsylvania. 1.82% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

South Londonderry Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
20298,731-12-0.14%
20288,743-12-0.14%
20278,755-12-0.14%
20268,767-12-0.14%
20258,779-12-0.14%
20248,791-12-0.14%
20238,803-12-0.14%
20228,815-12-0.14%
20218,827430.49%
20208,7842913.43%
20198,493260.31%
20188,4672473%
20178,2202873.62%
20167,9332222.88%
20157,7112092.79%
20147,5022313.18%
20137,271861.2%
20127,185640.9%
20117,1211121.6%
20107,00900%

South Londonderry Population by Year