Zip Code 84128
West Valley City, Utah — Salt Lake County
📍 ZIP code 84128 is in West Valley City, Salt Lake County, Utah.
ZIP code 84128 is located in West Valley City, Salt Lake County, Utah. It is a zip code in the Mountain (MST/MDT) Time Zone with an estimated population of 32,072. The area code for ZIP code 84128 is 801.
Quick Answer
Zip code 84128 is in West Valley City, Utah (Salt Lake County). It has a population of 32,072, median household income of $109,286, and median home value of $404,600.
Population
32,072
Income
$109,286
Home Value
$404,600
Climate
94°F / 24°F
About Zip Code 84128
Zip code 84128 is located in West Valley City, Utah, within Salt Lake County. Home to approximately 32,072 residents, this area sits at an elevation of 4280 ft and falls within the Mountain (MST/MDT) timezone. The local area code is 801.
The median household income is $109,286 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $404,600, and the cost of living index is 128 (28% above the national average of 100).
Summers average a high of 94°F while winters drop to 24°F. The area receives about 16 in of rain and 52 in of snow annually. The zip code covers 10.2 square miles of land area.
Key Statistics
32,072
$109,286
$404,600
Mountain (MST/MDT)
801
4280 ft
10.2 sq mi
30.7
8,442
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Compare With Nearby Zip Codes
| Metric | 84128 | 84120 | 84118 | 84104 | 84119 | 84044 |
|---|---|---|---|---|---|---|
| City | West Valley City, UT | West Valley City, UT | Taylorsville, UT | Salt Lake City, UT | West Valley City, UT | Magna, UT |
| Population | 32,072 | 50,589 | 41,969 | 24,057 | 50,745 | 29,488 |
| Median Income | $109,286 | $90,847 | $87,457 | $61,326 | $66,616 | $87,516 |
| Home Value | $404,600 | $370,800 | $348,500 | $318,100 | $341,800 | $341,400 |
| Cost of Living | 128 | 119 | 110 | 93 | 95 | 107 |
| Median Age | 30.7 | 30.9 | 32 | 34.1 | 28.8 | 32.5 |
Cost of Living
100 = National Average. West Valley City's cost of living is 28% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
3.7x
Demographics
Zip code 84128 has a population of 32,072 people with a median age of 30.7. There are 8,442 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
West Valley City (84128) population trend from 2010 to 2024
↑ 8.7%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
94°F
24°F
16 in
52 in
West Valley City experiences hot summers with average highs around 94°F. Winters are cool with lows averaging 24°F. With 52 in of annual snowfall, residents should be prepared for significant winter weather.
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Housing & Economy
Median Home Value
$404,600
Median Household Income
$109,286
With 8,442 housing units across 10.2 square miles, 84128 has a housing density of 828 units per square mile. The home price-to-income ratio is 3.7x.
Location & Geography
Latitude
40.7004°
Longitude
-112.0468°
Land Area
10.2 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 84128 (West Valley City, UT) with distances:
All Zip Codes in West Valley City, UT
Other zip codes serving West Valley City:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 84128's $109,286. A way to compare West Valley City to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 84128 (West Valley City, UT). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is West Valley City, Utah?
West Valley City, Utah uses zip code 84128 along with 2 other zip codes.
What county is zip code 84128 in?
Zip code 84128 is located in Salt Lake County, Utah.
What is the population of zip code 84128?
The population of zip code 84128 is 32,072 with a median age of 30.7.
Is 84128 in West Valley City, Utah?
Yes, zip code 84128 is in West Valley City, Salt Lake County, Utah. The area code is 801.
Frequently Asked Questions
What city is zip code 84128 in?
Zip code 84128 is in West Valley City, Utah. It is part of Salt Lake County and uses the Mountain (MST/MDT) timezone.
What is zip code 84128?
Zip code 84128 is a U.S. postal code in West Valley City, Utah (Salt Lake County). It has a population of 32,072 and covers 10.2 square miles.
What is the population of zip code 84128?
The population of zip code 84128 (West Valley City, UT) is 32,072 with a median age of 30.7. There are approximately 8,442 housing units in this area.
What is the median income in zip code 84128?
The median household income in zip code 84128 (West Valley City, UT) is $109,286 per year. The cost of living index is 128 (100 = national average).
What is the average home price in zip code 84128?
The median home value in zip code 84128 (West Valley City, UT) is $404,600. The cost of living index is 128 compared to the national average of 100.
What county is zip code 84128 in?
Zip code 84128 is located in Salt Lake County, Utah. The primary city is West Valley City.
What is the area code for zip code 84128?
Zip code 84128 in West Valley City, UT uses area code 801. It is located in the Mountain (MST/MDT) timezone.
Is zip code 84128 a good place to live?
Zip code 84128 (West Valley City, UT) has a cost of living index of 128 (100 = national average), a median household income of $109,286, and median home values of $404,600. The median age is 30.7. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 84128?
The cost of living index for zip code 84128 (West Valley City, UT) is 128, where 100 represents the national average. This area is above the national average. Median home value: $404,600.
What schools serve zip code 84128?
Zip code 84128 in West Valley City, Utah is served by the local school district of Salt Lake County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.