| Zip Code | Primary City | Secondary City | | 20731 | Capitol Heights | Capitol Hgts | | 20743 | Capitol Heights | Capitol Heights, Fairmount Heights, Seat Pleasant, Capitol Hgts, Fairmount Hgt | | 20753 | District Heights | Capitol Heights, Forestville, District Hts | | 20790 | Capitol Heights | Capitol Heights, Po, Southern Md Facility, Capitol Hgts | | 20791 | Capitol Heights | | | 20799 | Capitol Heights | Capitol Heights, Washington Ndc, Capitol Hgts |
|