Zip Code 12457 — Mount Tremper, NY
12457 is a ZIP Code associated with Mount Tremper, NY, located within Ulster. 12457 ranks #30 out of 55 ZIP codes in Ulster County by population (and #1291 out of 1,826 in NY). The area supports an estimated population of 1,041 residents across Data Pending housing units, with a population density of 35.1 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (42.039970, -74.246590)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 12457 |
| Primary City | Mount Tremper |
| State / Province | NY |
| County | Ulster |
| Total Population | 1,041 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 35.1 people/sq mi |
| Timezone | America/New_York |
How 12457 Compares
| Metric | ZIP 12457 | Ulster County | NY State Average |
|---|
| Population | 1,041 | 194,344 (Total) | 19,771,902 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 35.1 /sq mi | -- | -- |
| County Pop Rank | #30 of 55 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →