Mifflinburg

County:: Union County
County Seat:: No
Area (mi²):: 1.804
State:: Pennsylvania

Mifflinburg is a borough located in Union County, Pennsylvania. Mifflinburg has a 2025 population of 3,419. Mifflinburg is currently declining at a rate of -0.32% annually and its population has decreased by -1.55% since the most recent census, which recorded a population of 3,473 in 2020.

The average household income in Mifflinburg is $75,758 with a poverty rate of 3.47%.The median age in Mifflinburg is 37.9 years: 32.1 years for males, and 46.7 years for females.

Demographics

The racial composition of Mifflinburg includes 92.93% White, 4.04% other race, and smaller percentages for Two or more races, Black or African American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	3,219	92.93%
Other race	140	4.04%
Two or more races	101	2.92%
Black or African American	4	0.12%

Mifflinburg Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Mifflinburg's average per capita income is $41,635. Household income levels show a median of $65,643. The poverty rate stands at 3.47%.

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	$106,150	-
Families	$87,917	$94,776
Households	$65,643	$75,758
Non Families	$34,837	$40,566

$41,635

Average Income

$65,643

Median Household Income

3.47%

Poverty Rate