| Official Name: | Portlandville, New York |
| Settlement Type: | Hamlet and CDP |
| Pushpin Map: | New York#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | New York |
| Subdivision Type2: | County |
| Subdivision Name2: | Otsego |
| Subdivision Type3: | Town |
| Subdivision Name3: | Milford |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 1152 |
| Coordinates: | 42.5303°N -74.9672°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 13834 |
| Area Code: | 607 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 961002 |
Portlandville is a hamlet (and census-designated place)[1] in Otsego County, New York, United States. The community is located along the Susquehanna River and New York State Route 28, northeast of Oneonta. Portlandville has a post office with ZIP code 13834, which opened on April 9, 1828.[2] [3]