26 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 89436 | Sparks | 48,221 |
| 89502 | Reno | 45,708 |
| 89506 | Reno | 45,349 |
| 89431 | Sparks | 40,772 |
| 89521 | Reno | 40,537 |
| 89523 | Reno | 37,167 |
| 89509 | Reno | 35,877 |
| 89503 | Reno | 30,740 |
| 89511 | Reno | 30,214 |
| 89512 | Reno | 28,133 |
| 89433 | Sun Valley | 23,385 |
| 89508 | Reno | 14,595 |
| 89441 | Sparks | 13,854 |
| 89451 | Incline Village | 9,165 |
| 89519 | Reno | 8,718 |
| 89704 | Washoe Valley | 4,843 |
| 89501 | Reno | 3,641 |
| 89439 | Verdi | 2,071 |
| 89510 | Reno | 1,570 |
| 89442 | Wadsworth | 827 |
| 89557 | Reno | 707 |
| 89424 | Nixon | 368 |
| 89402 | Crystal Bay | 135 |
| 89412 | Gerlach | 100 |
| 89450 | Incline Village | 0 |
| 89405 | Empire | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 26 ZCTAs in Washoe County, Nevada (US Census).