ZIP code · Washington · Utah · United States
ZIP code 84780 — Washington
ZIP code 84780 serves Washington, Utah.
- Postal code
- 84780Single source Value from one source, not cross-checked.
- City
- Washington
- County
- Washington FIPS 49053
- State
- Utah
- Country
- United States
- Coordinates
- 37.1364, -113.5050 — precision precise (locality)
View on OpenStreetMap - Population
- 30,709 (ZCTA, ACS 5-year)
- Population density
- 497 / sq mi
- Land area
- 61.8 sq mi (160 km²) (ZCTA, ACS 5-year)
- Median household income
- $94,103
- Per-capita income
- $46,073
- Median age
- 38.8
- Households
- 10,678
- Housing units
- 12,922
- Median home value
- $511,700
- Median gross rent
- $1,581 / month
- Congressional district
- UT-2 (119th Congress)
- USDA hardiness zone
- 8b (15 to 20 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Denver (UTC−7 / UTC−6 DST)
- Area code
- 435 (from the nearest rate centre)Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 84780 with another ZIP · ZIPs within 25 miles · distance from 84780
Map of ZIP code 84780
Climate — monthly normals
Warmest month Jul (avg high 102°F), coldest Dec (avg low 28°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 54 | 59 | 68 | 75 | 85 | 96 | 102 | 100 | 92 | 79 | 64 | 53 |
| Avg low °F | 28 | 32 | 39 | 46 | 56 | 65 | 72 | 70 | 61 | 47 | 35 | 28 |
| Precip in | 1.2 | 1.4 | 1.0 | 0.7 | 0.3 | 0.2 | 0.5 | 1.1 | 0.7 | 0.8 | 0.7 | 0.9 |
NOAA 1991–2020 climate normals from the nearest station: ST GEORGE (5.7 mi) · NOAA NCEI
Places in ZIP 84780
- 8 schools
- 2 pharmacies
- 3 supermarkets
- 34 restaurants & cafés
- 24 parks
- 33 playgrounds
- 1 libraries
- 2 post offices
- 18 places of worship
- 5 banks
- 9 gas stations
- 4 EV charging stations
- 3 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page