100 Smallest ZIP Codes in the United States by Population in Alameda County, California

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 Alameda County, California.

Rank	ZIP Code	City	State	Population
1	94613	OAKLAND	CA	612
2	94586	SUNOL	CA	964
3	94720	BERKELEY	CA	5,322
4	94710	BERKELEY	CA	8,471
5	94708	BERKELEY	CA	11,810
6	94709	BERKELEY	CA	12,200
7	94707	BERKELEY	CA	12,596
8	94502	ALAMEDA	CA	14,225
9	94705	BERKELEY	CA	14,508
10	94552	CASTRO VALLEY	CA	14,948
11	94542	HAYWARD	CA	16,188
12	94618	OAKLAND	CA	17,285
13	94702	BERKELEY	CA	17,473
14	94612	OAKLAND	CA	17,742
15	94579	SAN LEANDRO	CA	20,272
16	94703	BERKELEY	CA	20,404
17	94706	ALBANY	CA	20,860
18	94609	OAKLAND	CA	25,175
19	94704	BERKELEY	CA	25,711
20	94619	OAKLAND	CA	27,018
21	94607	OAKLAND	CA	27,019
22	94580	SAN LORENZO	CA	29,377
23	94602	OAKLAND	CA	31,104
24	94610	OAKLAND	CA	32,404
25	94545	HAYWARD	CA	33,700
26	94608	EMERYVILLE	CA	34,083
27	94621	OAKLAND	CA	34,911
28	94588	PLEASANTON	CA	35,162
29	94603	OAKLAND	CA	37,042
30	94555	FREMONT	CA	37,671
31	94606	OAKLAND	CA	38,459
32	94611	OAKLAND	CA	39,780
33	94551	LIVERMORE	CA	40,025
34	94578	SAN LEANDRO	CA	42,350
35	94605	OAKLAND	CA	44,477
36	94566	PLEASANTON	CA	45,145
37	94546	CASTRO VALLEY	CA	45,761
38	94560	NEWARK	CA	47,470
39	94577	SAN LEANDRO	CA	47,937
40	94550	LIVERMORE	CA	49,463
41	94601	OAKLAND	CA	52,102
42	94539	FREMONT	CA	53,464
43	94501	ALAMEDA	CA	63,340
44	94538	FREMONT	CA	66,215
45	94541	HAYWARD	CA	67,401
46	94587	UNION CITY	CA	69,502
47	94568	DUBLIN	CA	71,068
48	94536	FREMONT	CA	71,445
49	94544	HAYWARD	CA	77,712