100 Largest ZIP Codes in the United States by Population in Harford County, Maryland

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

Rank	ZIP Code	City	State	Population
1	21014	BEL AIR	MD	37,097
2	21009	ABINGDON	MD	32,565
3	21015	BEL AIR	MD	30,485
4	21001	ABERDEEN	MD	25,908
5	21040	EDGEWOOD	MD	25,110
6	21078	HAVRE DE GRACE	MD	19,820
7	21050	FOREST HILL	MD	18,076
8	21085	JOPPA	MD	16,590
9	21047	FALLSTON	MD	13,419
10	21084	JARRETTSVILLE	MD	7,366
11	21154	STREET	MD	7,059
12	21017	BELCAMP	MD	6,177
13	21161	WHITE HALL	MD	5,625
14	21132	PYLESVILLE	MD	3,110
15	21028	CHURCHVILLE	MD	2,974
16	21034	DARLINGTON	MD	2,958
17	21160	WHITEFORD	MD	2,716
18	21005	ABERDEEN PROVING GROUND	MD	2,703
19	21010	GUNPOWDER	MD	216
20	21130	PERRYMAN	MD	21