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