Residential delivery area · Utah
ZIP Code 84780: Washington, UT
ZIP code 84780 is in Washington, Utah, entirely in Washington County (Census 2020 ZIP-county file). About 32,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $91,963 (Census Bureau, ACS 2020-2024). By Census place, 54% of its land lies in Washington, and 3% in smaller places; 44% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Washington · its only residential ZIP
- County
- Washington County
- Census places
- Washington
- Metro area
- St. George, UT
- House district
- UT-2 119th Congress
- State
- Utah
- Time zone
- Mountain
- Land area
- 61.8 sq mi · 524 people per sq mi
Where is ZIP code 84780?
84780 centers on 37.133°, -113.474° and covers 61.8 square miles of land plus 0.0 of water. It borders 4 ZIP codes: 84790, 84770, 84737, 86432.
The map draws ZIP code areas only. For the streets inside 84780, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 84780 compare with the rest of Washington County?
| Measure | 84780 | In Washington County | In UT |
|---|---|---|---|
| People (ACS 2020-2024) | 32,366 | 3rd of 21 | 44th of 298 |
| Median household income | $92k | 4th of 9 | 73rd of 145 |
| Median home value | $571k | 3rd of 12 | 42nd of 153 |
Its median household income is higher than in 75% of U.S. residential ZIP codes, and it is denser than 72% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 84780?
The 2020 Census counted 28,025 people in 84780; the ACS, which samples households over 2020-2024, estimates 32,366. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 32,366
- 2020 Census count
- 28,025
- Households
- 11,511
- Median age
- 38.5
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 84780?
Of the 32,366 people the ACS estimates in 84780, 26.1% are under 18 and 21.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (80.8%), then Hispanic or Latino (13.5%).
- Under 1826.1%
- 18 to 6452.9%
- 65 and older21.0%
- White, not Hispanic80.8%
- Hispanic or Latino13.5%
- Other or two or more4.6%
- Asian, not Hispanic0.7%
- Black, not Hispanic0.4%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 84780 earn?
Median household income is $91,963 (ACS 2020-2024), the 4th highest of the 9 ranked ZIP codes in Washington County.
- Median household income
- $91,963±$12,515
- Income per person
- $46,454
- Below the poverty line
- 5.5%
- Unemployed (of the labor force)
- 2.2%
- Adults 25+ with a bachelor's degree
- 35.8%
- Adjusted gross income per tax return, 2022
- $94,81314,730 returns; wages 54% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 84780?
FHFA's house price index for 84780, built from repeat sales and appraisals of the same homes, rose 118% from 2015 to 2025 and rose 54% from 2020 to 2025, and moved −0.9% in 2025.
- Median home value (owners' estimate)
- $570,800
- Median gross rent
- $1,614
- Homes owned by their occupants
- 74.7%
- Housing units
- 13,761
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 84780?
893 business establishments had a location in this ZIP code in 2023, 250 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction234
- Professional, scientific, and technical services115
- Real estate and rental and leasing88
- Retail trade85
- Administrative and support and waste management and remediation services66
- Other services (except public administration)61
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 84780?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 84790 | Saint George | 55,892 | $91k | 7.6 mi |
| 84770 | Saint George | 48,397 | $70k | 8.6 mi |
| 84737 | Hurricane | 24,359 | $76k | 14.4 mi |
| 86432 | Littlefield, AZ | 3,073 | $49k | 26.9 mi |
| 84746 | Leeds | 1,092 | $94k | 9.9 mi (near) |
| 84745 | La Verkin | 4,476 | $68k | 12.7 mi (near) |
| 84774 | Toquerville | 2,344 | $98k | 13.1 mi (near) |
| 84738 | Ivins | 10,050 | $78k | 13.6 mi (near) |
| 84783 | Dammeron Valley | 928 | – | 14.6 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.