Arnold Flag

Arnold

County Seat:
No
Area (mi²):
0.732
State:
Pennsylvania

Arnold is a city located in Allegheny County, Pennsylvania. Arnold has a 2025 population of 4,630 . Arnold is currently declining at a rate of -0.58% annually and its population has decreased by -2.81% since the most recent census, which recorded a population of 4,764 in 2020.

The average household income in Arnold is $59,113 with a poverty rate of 25.04%. The median age in Arnold is 39.1 years: 34.2 years for males, and 43.8 years for females. For every 100 females there are 96.8 males.

4.6K
Total Population
6,325
Density (mi²)
-27 -0.58%
Growth

Arnold Population

Arnold Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Arnold includes 67.71% White, 24.65% Black or African American, and smaller percentages for Native American and multiracial populations.

Population by Race

White (67.71%)

Black or African American (24.65%)

Two or more races (6.48%)

Native American (1.16%)

Race
Population
Percentage (of total)
White3,20867.71%
Black or African American1,16824.65%
Two or more races3076.48%
Native American551.16%

Arnold Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Arnold's average per capita income is $36,017. Household income levels show a median of $48,119. The poverty rate stands at 25.04%.

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$75,893-
Families$73,013$80,035
Households$48,119$59,113
Non Families$26,811$34,122

$36,017

Average Income

$48,119

Median Household Income

25.04%

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)