Londonderry Flag

Londonderry

County:
Ross County
County Seat:
No
Area (mi²):
36.351
State:
Ohio

Londonderry is located in Ross County, Ohio. Londonderry has a 2025 population of 714 . Londonderry is currently growing at a rate of 0.42% annually and its population has increased by 1.13% since the most recent census, which recorded a population of 706 in 2020.

The average household income in Londonderry is $78,710 with a poverty rate of 7.46%. The median age in Londonderry is 58.9 years: 38.9 years for males, and 61.8 years for females. For every 100 females there are 125.8 males.

714
Total Population
20
Density (mi²)
3 0.42%
Growth

Londonderry Population

Londonderry Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Londonderry includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

White (100%)

Race
Population
Percentage (of total)
White402100%

Londonderry Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Londonderry's average per capita income is $78,500. Household income levels show a median of $78,333. The poverty rate stands at 7.46%.

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
Families$90,500$85,343
Married Families$90,500-
Households$78,333$78,710
Non Families$65,417$63,673

$78,500

Average Income

$78,333

Median Household Income

7.46%

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)