Zip code 20899

Zip code 20899, MD

The zip code 20899, type unique, belongs to the following denominations: Gaithersburg y Natl Inst Stds & Tech Md . It is part of the county Montgomery County, state of Maryland. It has an estimated population of 0.

The postal code 20899 has several names. If you are going to use the postal service be sure to use only those denominations marked as official (Gaithersburg).