Duncannon Flag

Duncannon

County:
Perry County
County Seat:
No
Area (mi²):
0.407
State:
Pennsylvania

Duncannon is a borough located in Perry County, Pennsylvania. Duncannon has a 2026 population of 1,471. Duncannon is currently growing at a rate of 0.41% annually and its population has decreased by 0% since the most recent census, which recorded a population of 1,471 in 2020.

1.5K
Total Population
3,613
Density (mi²)
6 0.41%
Growth