Zip Code 84340 — Willard, UT
84340 is a ZIP Code associated with Willard, UT, located within Box Elder. The postal region supports an estimated population of 3,744 residents across Data Pending housing units, with a population density of 44.9 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (41.393120, -112.157050)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 84340 |
| Primary City | Willard |
| State / Province | UT |
| County | Box Elder |
| Total Population | 3,744 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 44.9 people/sq mi |
| Timezone | America/Denver |
How 84340 Compares
| Metric | ZIP 84340 | Box Elder County | UT State Average |
|---|
| Population | 3,744 | 61,126 | 3,390,495 |
| Median Income | Data Pending | N/A | N/A |
| Population Density | 44.9 /sq mi | -- | -- |
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 →