Zip Code 12421 — Denver, NY
12421 is a ZIP Code associated with Denver, NY, located within Delaware. 12421 ranks #27 out of 34 ZIP codes in Delaware County by population (and #1568 out of 1,826 in NY). The area supports an estimated population of 261 residents across Data Pending housing units, with a population density of 5.9 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (42.251200, -74.533600)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 12421 |
| Primary City | Denver |
| State / Province | NY |
| County | Delaware |
| Total Population | 261 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 5.9 people/sq mi |
| Timezone | America/New_York |
How 12421 Compares
| Metric | ZIP 12421 | Delaware County | NY State Average |
|---|
| Population | 261 | 38,757 (Total) | 19,771,902 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 5.9 /sq mi | -- | -- |
| County Pop Rank | #27 of 34 | -- | -- |
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 →