100 Smallest ZIP Codes in the United States by Population in Baltimore County, Maryland

Explore the 100 smallest ZIP codes in the United States ranked by population using U.S. Census demographic data. This page lists ZIP codes located in Baltimore County, Maryland.

Rank ZIP Code City State Population
1 21285 TOWSON MD 10
2 21031 HUNT VALLEY MD 26
3 21105 MARYLAND LINE MD 40
4 21023 BUTLER MD 68
5 21051 FORK MD 113
6 21156 UPPER FALLS MD 362
7 21052 FORT HOWARD MD 438
8 21071 GLYNDON MD 526
9 21153 STEVENSON MD 676
10 21082 HYDES MD 694
11 21250 BALTIMORE MD 2,959
12 21053 FREELAND MD 3,051
13 21155 UPPERCO MD 3,063
14 21162 WHITE MARSH MD 4,322
15 21252 TOWSON MD 4,456
16 21057 GLEN ARM MD 4,530
17 21111 MONKTON MD 4,838
18 21013 BALDWIN MD 5,382
19 21087 KINGSVILLE MD 5,597
20 21152 SPARKS GLENCOE MD 6,517
21 21120 PARKTON MD 7,319
22 21131 PHOENIX MD 7,722
23 21219 SPARROWS POINT MD 9,605
24 21128 PERRY HALL MD 15,934
25 21204 TOWSON MD 20,188
26 21286 TOWSON MD 21,142
27 21030 COCKEYSVILLE MD 25,133
28 21237 ROSEDALE MD 30,983
29 21133 RANDALLSTOWN MD 32,070
30 21136 REISTERSTOWN MD 35,038
31 21227 HALETHORPE MD 35,052
32 21208 PIKESVILLE MD 37,319
33 21236 NOTTINGHAM MD 38,632
34 21093 LUTHERVILLE TIMONIUM MD 38,961
35 21244 WINDSOR MILL MD 39,501
36 21220 MIDDLE RIVER MD 42,652
37 21221 ESSEX MD 43,822
38 21228 CATONSVILLE MD 50,268
39 21207 GWYNN OAK MD 51,765
40 21117 OWINGS MILLS MD 58,516
41 21222 DUNDALK MD 60,013
42 21234 PARKVILLE MD 66,095