San Leandro, California ZIP Codes
- ZIP records
3 - Sum of listed ZIP population estimates
108,103 - Counties represented
1 - Population range
20,017–46,317 per ZIP
Population sum includes positive estimates in these ZIP records; it is not an official city population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | County | Population estimate |
|---|---|---|---|---|
| 1 | 94577 | San Leandro | Alameda | 46,317 |
| 2 | 94578 | San Leandro | Alameda | 41,769 |
| 3 | 94579 | San Leandro | Alameda | 20,017 |
Counties represented
All ZIP Codes in San Leandro
Browse all ZIP data for California
Methodology: ZIP records are grouped by the source file's primary city and state fields. Population ranges and sums use positive ZIP-level estimates; sums should not be read as official city totals. County links use each record's listed county assignment.