12 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 12309 | Schenectady | 33,246 |
| 12302 | Schenectady | 28,031 |
| 12306 | Schenectady | 27,865 |
| 12304 | Schenectady | 22,403 |
| 12308 | Schenectady | 15,511 |
| 12305 | Schenectady | 7,356 |
| 12307 | Schenectady | 7,050 |
| 12053 | Delanson | 4,550 |
| 12137 | Pattersonville | 2,077 |
| 12056 | Duanesburg | 1,695 |
| 12150 | Rotterdam Junction | 710 |
| 12008 | Alplaus | 422 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 12 ZCTAs in Schenectady County, New York (US Census).