ZIP Code 21830 is completely within the 1st US Congressional District of Maryland and is currently represented by Republican Andy Harris M.D..
The State Legislative body in Maryland is the Maryland General Assembly. It is bicameral, consisting of the upper Maryland Senate and the lower Maryland House of Delegates. ZIP Code 21830 is within two Maryland State House of Delegates districts: the Maryland State House of Delegates District 37A currently represented by Democrat Sheree Sample-Hughes and the Maryland State House of Delegates District 37B currently represented by Republican Christopher T. Adams and Republican Tom Hutchinson and . ZIP Code 21830 is completely within Maryland State Senate District 37 and is currently represented by Republican Johnny Mautz.