| Official Name: | Jacksonville, 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: | Tompkins |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 1024 |
| Coordinates: | 42.5083°N -76.615°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 14854 |
| Area Code: | 607 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 953901 |
Jacksonville is a hamlet (and census-designated place)[1] in Tompkins County, New York, United States. The community is located within the Town of Ulysses, along New York State Route 96. It is southeast of Trumansburg. Jacksonville has a post office with ZIP code 14854, which opened on February 25, 1820.[2] [3]