ZIP codes

ZIP codes in Washington County, Utah

Washington County has 21 ZIP codes. 19 lie entirely inside it and 2 are shared with neighboring counties, so part of their land and their people are elsewhere. About 198,175 people live in the parts inside it (ACS 2020–2024).

By the All Map Tools Team

ZIP codes: 21; With 1% or more of their land inside
Entirely inside: 19; 99% or more of their land
Shared with other counties: 2; Most with Iron County (2)
Most populated ZIP: 84790; 55,892 people · St. George
Least populated ZIP: 84763; 260 people · Rockville
Largest ZIP by land: 84737; 250 sq mi · Hurricane

Map of the ZIP codes in Washington County

Entirely in the county (99% or more of its land)
Shared, mostly in this county
Shared, mostly in other counties
Neighboring counties

Open in the interactive tool

Each area is a ZIP code with its number where it fits. Hover over one to see its name.

All ZIP codes in Washington County

21 ZIP codes in Washington County, UT, by number
ZIP code	Main city	Population	Land in the county	Residents in the county
84720	Cedar City	25,708	31%	≈ 1,789
84722	Central	660	100%	660
84725	Enterprise	2,054	100%	2,054
84733	—	276	100%	276
84737	Hurricane	24,359	100%	24,359
84738	Ivins	10,050	100%	10,050
84745	La Verkin	4,476	100%	4,476
84746	Leeds	1,092	100%	1,092
84757	New Harmony	1,494	97%	≈ 1,379
84763	Rockville	260	100%	260
84765	Santa Clara	8,152	100%	8,152
84767	Springdale	663	100%	663
84770	St. George	48,397	100%	48,397
84774	Toquerville	2,344	100%	2,344
84779	Virgin	713	100%	713
84780	Washington	32,366	100%	32,366
84781	Pine Valley	355	100%	355
84782	Veyo	598	100%	598
84783	Dammeron Valley	928	100%	928
84784	Hildale	1,372	100%	1,372
84790	St. George	55,892	100%	55,892

ZIP codes shared with other counties

These 2 ZIP codes have part of their land in another county. The first figure is the share of their land in Washington County; then, where the rest lies.

84720 (Cedar City): 31% here; 69% in Iron County.
84757 (New Harmony): 97% here; 3.3% in Iron County.

Cities and prefixes

By main city (the city, town or CDP each ZIP shares the most land with), the ones with the most are St. George (2), Cedar City (1), Central (1), Dammeron Valley (1), Enterprise (1), and Hildale (1); 19 places in all.

All 21 start with the same three digits, 847: the prefix of the USPS sorting center that handles them.

Neighboring counties

Each one with its ZIP codes. Those without a page of their own open in the tool.

Tools for this county

ZIP codes by county or city The same ZIP codes on an interactive map, with the list as CSV or to copy County map with cities Its cities, towns and CDPs with their population ZIP codes in a radius The ZIP codes within 10 miles of its center, or any distance you like

Sources

U.S. Census Bureau, 2020 ZCTA to County, ZCTA to Place and ZCTA to Census Tract Relationship Files (and the 2022 County Subdivision to ZCTA file for Connecticut). Public domain.
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, table B01003 (population of each ZIP code, census tract and Connecticut town). Public domain.
U.S. Census Bureau, Vintage 2025 Population Estimates (county population) and 2025 Gazetteer Files (land area and interior point of each ZIP code). Public domain.
U.S. Census Bureau, Cartographic Boundary Files: ZCTAs 2020 and counties 2025, 1:500,000; county adjacency file 2025. Public domain.

How we count. ZIP codes here are the Census Bureau’s ZIP Code Tabulation Areas (ZCTAs), the areas it draws to match USPS ZIP codes; ZIPs with no area of their own (PO boxes, single buildings) aren’t included. A ZIP can cross county lines: “Land in the county” is the exact share of its land inside, from the Census relationship files. “Residents in the county” is the whole ZIP for those entirely inside; for shared ones it’s an estimate, spreading the people of each census tract over the land it shares with the ZIP. Population: ACS 2020–2024. Methodology.

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