About 18823 - Harford, Pennsylvania
The ZIP code 18823 of Harford falls within Pennsylvania, the United States - a small area by population. It sits within Harford County County.
Around 7,327 people live in the 18823 ZIP code area. That's below the Pennsylvania average of about 22,902 people per ZIP code.
Median household income is about $89,300 (above the Pennsylvania average).
Other ZIP code codes in Pennsylvania serve areas such as New Castle, Philadelphia, Clearfield.