100 Smallest ZIP Codes in the United States by Population in San Mateo 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 San Mateo County, California.
| Rank | ZIP Code | City | State | Population |
|---|---|---|---|---|
| 1 | 94021 | LOMA MAR | CA | 123 |
| 2 | 94074 | SAN GREGORIO | CA | 151 |
| 3 | 94060 | PESCADERO | CA | 1,312 |
| 4 | 94020 | LA HONDA | CA | 2,030 |
| 5 | 94037 | MONTARA | CA | 2,649 |
| 6 | 94038 | MOSS BEACH | CA | 3,165 |
| 7 | 94018 | EL GRANADA | CA | 3,423 |
| 8 | 94005 | BRISBANE | CA | 4,756 |
| 9 | 94028 | PORTOLA VALLEY | CA | 6,888 |
| 10 | 94027 | ATHERTON | CA | 7,142 |
| 11 | 94065 | REDWOOD CITY | CA | 11,588 |
| 12 | 94019 | HALF MOON BAY | CA | 15,275 |
| 13 | 94030 | MILLBRAE | CA | 22,825 |
| 14 | 94402 | SAN MATEO | CA | 26,150 |
| 15 | 94062 | REDWOOD CITY | CA | 26,531 |
| 16 | 94002 | BELMONT | CA | 27,893 |
| 17 | 94070 | SAN CARLOS | CA | 31,312 |
| 18 | 94063 | REDWOOD CITY | CA | 34,807 |
| 19 | 94401 | SAN MATEO | CA | 35,392 |
| 20 | 94404 | SAN MATEO | CA | 36,397 |
| 21 | 94061 | REDWOOD CITY | CA | 37,539 |
| 22 | 94044 | PACIFICA | CA | 38,061 |
| 23 | 94025 | MENLO PARK | CA | 41,017 |
| 24 | 94066 | SAN BRUNO | CA | 43,369 |
| 25 | 94010 | BURLINGAME | CA | 43,458 |
| 26 | 94403 | SAN MATEO | CA | 43,858 |
| 27 | 94014 | DALY CITY | CA | 46,331 |
| 28 | 94015 | DALY CITY | CA | 65,125 |
| 29 | 94080 | SOUTH SAN FRANCISCO | CA | 66,262 |