Zip Code 84128 — West Valley City, UT

ZIP Code 84128 is associated with West Valley City, UT, in Salt Lake County. The listed population estimate is 32,126; estimated density is 1,480.2 people per square mile. Among records with population estimates, it ranks #18 of 39 in Salt Lake County and #46 of 289 in UT.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (40.705180, -112.042590)

Data MetricLocal Statistic
Postal / Zip Code84128
Primary CityWest Valley City
State / ProvinceUT
CountySalt Lake
Total Population32,126
Population Density1,480.2 people/sq mi
TimezoneAmerica/Denver

How 84128 Compares

MetricZIP 84128Salt Lake County recordsUT records
Population estimate32,1261,199,921 (sum)3,390,495 (sum)
Population Density1,480.2 /sq mi----
County population rank#18 of 39----
State population rank#46 of 289----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in UT

ZIP CodeCityDistancePopulation estimate
ZIP 84120West Valley City2.2 mi50,799
ZIP 84118Salt Lake City3.4 mi42,853
ZIP 84104Salt Lake City4.3 mi23,420
ZIP 84119West Valley City5.1 mi50,070
ZIP 84129Salt Lake City5.5 mi37,442

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 →