Mifflinburg Flag

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 2026 population of 3,470. Mifflinburg is currently declining at a rate of 0% annually and its population has decreased by -0.34% since the most recent census, which recorded a population of 3,482 in 2020.

3.5K
Total Population
1,923
Density (mi²)

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)