List of states:

[AL] Alabama
[AK] Alaska
[AZ] Arizona
[AR] Arkansas
[CA] California
[CO] Colorado
[CT] Connecticut
[DE] Delaware
[DC] District of Columbia
[FL] Florida
[GA] Georgia
[HI] Hawaii
[ID] Idaho
[IL] Illinois
[IN] Indiana
[IA] Iowa
[KS] Kansas
[KY] Kentucky
[LA] Louisiana
[ME] Maine
[MD] Maryland
[MA] Massachusetts
[MI] Michigan
[MN] Minnesota
[MS] Mississippi
[MO] Missouri
[MT] Montana
[NE] Nebraska
[NV] Nevada
[NH] New Hampshire
[NJ] New Jersey
[NM] New Mexico
[NY] New York
[NC] North Carolina
[ND] North Dakota
[OH] Ohio
[OK] Oklahoma
[OR] Oregon
[PA] Pennsylvania
[PR] Puerto Rico
[RI] Rhode Island
[SC] South Carolina
[SD] South Dakota
[TN] Tennessee
[TX] Texas
[UT] Utah
[VT] Vermont
[VA] Virginia
[WA] Washington
[WV] West Virginia
[WI] Wisconsin
[WY] Wyoming

List of cities in Maryland:

MD 206HH
MD 207HH
MD 208HH
MD 209HH
MD 210HH
MD 211HH
MD 212HH
MD 214HH
MD 215HH
MD 216HH
MD 217HH
MD 218HH
MD 218XX
MD 219HH
Abell, MD 20606
Aberdeen, MD 21001
Aberdeen Proving, MD 21005
Abingdon, MD 21009
Accident, MD 21520
Accokeek, MD 20607
Adelphi, MD 20783
Allen, MD 21810
Andrews Afb, MD 20762
Annapolis, MD 21403
Annapolis, MD 21405
Annapolis Juncti, MD 20701
Aquasco, MD 20608
Arnold, MD 21012
Ashton, MD 20861
Aspen Hill, MD 20906
Avenue, MD 20609
Bainbridge, MD 21904
Baldwin, MD 21013
Baltimore, MD 21201
Baltimore, MD 21202
Baltimore, MD 21205
Baltimore, MD 21206
Baltimore, MD 21209
Baltimore, MD 21210
Baltimore, MD 21211
Baltimore, MD 21212
Baltimore, MD 21213
Baltimore, MD 21214
Baltimore, MD 21215
Baltimore, MD 21216
Baltimore, MD 21217
Baltimore, MD 21218
Baltimore, MD 21223
Baltimore, MD 21224
Baltimore, MD 21229
Baltimore, MD 21230
Baltimore, MD 21231
Baltimore, MD 21239
Barclay, MD 21607
Barnesville, MD 20838
Barton, MD 21521
Beallsville, MD 20839
Bel Air, MD 21014
Bel Air, MD 21015
Bel Alton, MD 20611
Belcamp, MD 21017
Beltsville, MD 20705
Benedict, MD 20612
Bentley Springs, MD 21120
Berlin, MD 21811
Bethesda, MD 20814
Bethesda, MD 20816
Betterton, MD 21610
Big Pool, MD 21711
Big Spring, MD 21722
Bishopville, MD 21813
Bittinger, MD 21522
Bivalve, MD 21814
Bladensburg, MD 20710
Bloomington, MD 21523
Bowie, MD 20715
Bowie, MD 20720
Boyds, MD 20841
Bozman, MD 21612
Brandywine, MD 20613
Brentwood, MD 20722
Brinklow, MD 20862
Brookeville, MD 20833
Brooklyn Curtis, MD 21225
Brooklyn Curtis, MD 21226
Broomes Island, MD 20615
Brunswick, MD 21716
Bryans Road, MD 20616
Bryantown, MD 20617
Buckeystown, MD 21717
Burkittsville, MD 21718
Burtonsville, MD 20866
Bushwood, MD 20618
Cabin John, MD 20818
California, MD 20619
Callaway, MD 20620
Cambridge, MD 21613
Cape Saint Clair, MD 21401
Capital Heights, MD 20743
Carrollton, MD 21157
Carrolltowne, MD 21784
Catonsville, MD 21228
Cecilton, MD 21913
Centreville, MD 21617
Charlestown, MD 21914
Charlotte Hall, MD 20622
Cheltenham, MD 20623
Chesapeake Beach, MD 20732
Chesapeake City, MD 21915
Chester, MD 21619
Chestertown, MD 21620
Chevy Chase, MD 20815
Church Creek, MD 21622
Church Hill, MD 21623
Churchton, MD 20733
Churchville, MD 21028
Claiborne, MD 21624
Clarksburg, MD 20871
Clarksville, MD 21029
Clements, MD 20624
Clinton, MD 20735
Cobb Island, MD 20625
Cockeysville Hun, MD 21030
Cockeysville Hun, MD 21031
Colesville, MD 20904
Colesville, MD 20905
College Park, MD 20740
Colora, MD 21917
Coltons Point, MD 20626
Columbia, MD 21044
Columbia, MD 21045
Columbia, MD 21046
Conowingo, MD 21918
Cooksville, MD 21723
Cordova, MD 21625
Corriganville, MD 21524
Crapo, MD 21626
Cresaptown, MD 21502
Crisfield, MD 21817
Crocheron, MD 21627
Crofton, MD 21114
Crownsville, MD 21032
Crumpton, MD 21628
Damascus, MD 20872
Dameron, MD 20628
Daniels, MD 21043
Darlington, MD 21034
Darnestown, MD 20874
Darnestown, MD 20878
Davidsonville, MD 21035
Dayton, MD 21036
Deal Island, MD 21821
Deale, MD 20751
Deer Park, MD 21550
Delmar, MD 21875
Denton, MD 21629
Derwood, MD 20855
Dickerson, MD 20842
District Heights, MD 20747
Doubs, MD 21710
Dowell, MD 20629
Drayden, MD 20630
Dundalk Sparrows, MD 21219
Dundalk Sparrows, MD 21222
Dunkirk, MD 20754
Earleville, MD 21919
East New Market, MD 21631
Easton, MD 21601
Eckhart Mines, MD 21528
Eden, MD 21822
Edgewater Beach, MD 21037
Edgewood, MD 21040
Elk Mills, MD 21920
Elkridge, MD 21075
Elkton, MD 21921
Ellerslie, MD 21529
Ellicott City, MD 21042
Emmitsburg, MD 21727
Essex, MD 21221
Eudowood, MD 21204
Ewell, MD 21824
Fahrney Keedy Me, MD 21713
Fair Play, MD 21733
Fallston, MD 21047
Faulkner, MD 20632
Federalsburg, MD 21632
Fishing Creek, MD 21634
Flintstone, MD 21530
Forest Hill, MD 21050
Fork, MD 21051
Fort Detrick, MD 21702
Fort George G Me, MD 20755
Fort Howard, MD 21052
Fort Ritchie, MD 21719
Fort Washington, MD 20744
Fowbelsburg, MD 21155
Frederick, MD 21703
Frederick, MD 21704
Freeland, MD 21053
Friendship, MD 20758
Friendsville, MD 21531
Frostburg, MD 21532
Fruitland, MD 21826
Fulton, MD 20759
Funkstown, MD 21734
Gaithersburg, MD 20877
Galena, MD 21635
Galesville, MD 20765
Gambrills, MD 21054
Garrett Park, MD 20896
Georgetown, MD 21930
Germantown, MD 20876
Gibson Island, MD 21056
Girdletree, MD 21829
Glen Arm, MD 21057
Glen Burnie, MD 21060
Glen Burnie, MD 21061
Glen Echo, MD 20812
Glencoe, MD 21152
Glenelg, MD 21737
Glenn Dale, MD 20769
Glenwood, MD 21738
Glyndon, MD 21071
Goldsboro, MD 21636
Graceham, MD 21788
Granite, MD 21163
Grasonville, MD 21638
Great Mills, MD 20634
Greenbelt, MD 20770
Greenmount, MD 21074
Greensboro, MD 21639
Gunpowder, MD 21010
Gwynn Oak, MD 21207
Hagerstown, MD 21740
Hagerstown, MD 21742
Halethorpe, MD 21227
Hancock, MD 21750
Hanover, MD 21076
Harmans, MD 21077
Harwood, MD 20776
Havre De Grace, MD 21078
Hebron, MD 21830
Henderson, MD 21640
Hereford, MD 21111
Highland, MD 20777
Hillsboro, MD 21641
Hollywood, MD 20636
Hughesville, MD 20637
Huntingtown, MD 20639
Hyattsville, MD 20781
Hydes, MD 21082
Ijamsville, MD 21754
Ingleside, MD 21644
Issue, MD 20645
Jacksonville, MD 21131
Jarrettsville, MD 21084
Jefferson, MD 21755
Jennings, MD 21536
Jessup, MD 20794
Joppa, MD 21085
Keedysville, MD 21756
Kennedyville, MD 21645
Kensington, MD 20895
Keymar, MD 21757
Kingsville, MD 21087
Knoxville, MD 21758
La Plata, MD 20646
Landover, MD 20785
Landover Hills, MD 20784
Lanham, MD 20706
Laurel, MD 20707
Laurel, MD 20723
Laurel, MD 20724
Laytonsville, MD 20879
Laytonsville, MD 20882
Leonardtown, MD 20650
Lewistown, MD 21701
Lexington Park, MD 20653
Libertytown, MD 21762
Linkwood, MD 21835
Linthicum Height, MD 21090
Little Orleans, MD 21766
Lonaconing, MD 21539
Lothian, MD 20711
Luke, MD 21540
Lusby, MD 20657
Lutherville, MD 21093
Maddox, MD 20621
Madison, MD 21648
Manchester, MD 21102
Mardela Springs, MD 21837
Marion Station, MD 21838
Marriottsville, MD 21104
Marydel, MD 21649
Maryland Line, MD 21105
Massey, MD 21650
Maugansville, MD 21767
Mccoole, MD 21562
Mcdaniel, MD 21647
Mechanicsville, MD 20659
Middle River, MD 21220
Middletown, MD 21769
Midland, MD 21542
Midlothian, MD 21543
Millersville, MD 21108
Millington, MD 21651
Mitchellville, MD 20716
Mitchellville, MD 20721
Monrovia, MD 21770
Montgomery Village, MD 20886
Montpelier, MD 20708
Mount Airy, MD 21771
Mount Rainier, MD 20712
Mount Savage, MD 21545
Myersville, MD 21773
Nanjemoy, MD 20662
Nanticoke, MD 21840
Naval Academy, MD 21402
New Market, MD 21774
New Windsor, MD 21776
Newark, MD 21841
Newburg, MD 20664
Newcomb, MD 21653
North Beach, MD 20714
North East, MD 21901
Nottingham, MD 21236
Ocean City, MD 21842
Odenton, MD 21113
Oldtown, MD 21555
Olney, MD 20832
Owings, MD 20736
Owings Mills, MD 21117
Oxford, MD 21654
Oxon Hill, MD 20745
Park Hall, MD 20667
Parkville, MD 21234
Parsonsburg, MD 21849
Patapsco, MD 21048
Patuxent River, MD 20670
Perry Hall, MD 21128
Perry Point, MD 21902
Perryman, MD 21130
Perryville, MD 21903
Pikesville, MD 21208
Piney Point, MD 20674
Pisgah, MD 20640
Pittsville, MD 21850
Pocomoke City, MD 21851
Point Of Rocks, MD 21777
Pomfret, MD 20675
Poolesville, MD 20837
Port Republic, MD 20676
Port Tobacco, MD 20677
Potomac, MD 20854
Preston, MD 21655
Prince Frederick, MD 20678
Princess Anne, MD 21853
Pylesville, MD 21132
Quantico, MD 21856
Queen Anne, MD 21657
Queenstown, MD 21658
Randallstown, MD 21133
Rawlings, MD 21557
Reisterstown, MD 21136
Rhodesdale, MD 21659
Ridge, MD 20680
Ridgely, MD 21660
Rising Sun, MD 21911
Rison, MD 20658
Riva, MD 21140
Riverdale, MD 20737
Riviera Beach, MD 21122
Rock Hall, MD 21661
Rocks, MD 21154
Rockville, MD 20850
Rockville, MD 20851
Rockville, MD 20852
Rockville, MD 20853
Rocky Ridge, MD 21778
Rohrersville, MD 21779
Rosedale, MD 21237
Royal Oak, MD 21662
Sabillasville, MD 21780
Saint Charles, MD 20602
Saint Charles, MD 20603
Saint Inigoes, MD 20684
Saint Leonard, MD 20685
Saint Michaels, MD 21663
Salisbury, MD 21801
Salisbury, MD 21804
Sandy Spring, MD 20860
Sang Run, MD 21541
Savage, MD 20763
Scotland, MD 20687
Secretary, MD 21664
Severn, MD 21144
Severna Park, MD 21146
Shady Side, MD 20764
Shallmar, MD 21538
Sharpsburg, MD 21782
Sharptown, MD 21861
Sherwood, MD 21665
Showell, MD 21862
Silver Spring, MD 20901
Silver Spring, MD 20903
Silver Spring, MD 20910
Smithsburg, MD 21783
Snow Hill, MD 21863
Solomons, MD 20688
Spencerville, MD 20868
Spring Gap, MD 21560
Stevensville, MD 21666
Still Pond, MD 21667
Stockton, MD 21864
Sudlersville, MD 21668
Suitland, MD 20746
Sunderland, MD 20689
Swanton, MD 21561
Takoma Park, MD 20912
Tall Timbers, MD 20690
Taneytown, MD 21787
Taylors Island, MD 21669
Temple Hills, MD 20748
Tilghman, MD 21671
Toddville, MD 21672
Towson, MD 21286
Tracys Landing, MD 20779
Trappe, MD 21673
Tuscarora, MD 21790
Tyaskin, MD 21865
Tylerton, MD 21866
Uniontown, MD 21158
Unionville, MD 21791
Upper Fairmount, MD 21867
Upper Falls, MD 21156
Upper Marlboro, MD 20772
Upper Marlboro, MD 20774
Valley Lee, MD 20692
Vienna, MD 21869
Waldorf, MD 20601
Walkersville, MD 21793
Warwick, MD 21912
Washington Grove, MD 20880
Welcome, MD 20693
West Bethesda, MD 20817
West Friendship, MD 21794
West Hyattsville, MD 20782
West River, MD 20778
Westover, MD 21871
Whaleysville, MD 21872
Wheaton, MD 20902
White Hall, MD 21161
White Marsh, MD 21162
White Plains, MD 20695
Whiteford, MD 21160
Willards, MD 21874
Williamsburg, MD 21643
Williamsport, MD 21795
Windsor Mill, MD 21244
Wingate, MD 21675
Wittman, MD 21676
Woodbine, MD 21797
Woodsboro, MD 21798
Woolford, MD 21677
Worton, MD 21678
Wye Mills, MD 21679