Slatedale is an unincorporated community in Washington Township

Washington Township, Lehigh County, Pennsylvania

Washington Township is a township in Lehigh County, Pennsylvania, in the United States. It is a suburb of Allentown, Pennsylvania, in the Lehigh Valley area of the state.The population of Washington Township was 6,588 at the 2000 census.-Geography:...

, northern Lehigh County, Pennsylvania

Lehigh County, Pennsylvania

-Climate:Most of the county's climate is considered to fall in the humid continental climate zone. Summers are typically hot and muggy, fall and spring are generally mild, and winter is cold. Precipitation is almost uniformly distributed throughout the year....

. It is 3.1 miles west of the borough of Slatington

Slatington, Pennsylvania

Slatington is a borough in Lehigh County, Pennsylvania. It is located 15 miles northwest of Allentown, in the Lehigh Valley region of the state...

.

The village of Slatedale is served by the Citizen's Fire Co #1, Slatedale for fire protection and Northern Valley EMS for ambulance services. While it has its own box post office with the zip code

ZIP Code

ZIP codes are a system of postal codes used by the United States Postal Service since 1963. The term ZIP, an acronym for Zone Improvement Plan, is properly written in capital letters and was chosen to suggest that the mail travels more efficiently, and therefore more quickly, when senders use the...

 of 18079, surrounding areas use the Slatington zip code of 18080. Both Slatedale and Slatington are named after the large amount of slate

Slate

Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. The result is a foliated rock in which the foliation may not correspond to the original sedimentary layering...

 found in the area.