Residential delivery area · Utah
ZIP Code 84128: West Valley City, UT
ZIP code 84128 is in West Valley City, Utah, entirely in Salt Lake County (Census 2020 ZIP-county file). About 32,000 people live there (Census Bureau, ACS 2020-2024), the least populous of West Valley City's 3 residential ZIP codes. Median household income is $110,726 (Census Bureau, ACS 2020-2024). By Census place, its land lies in West Valley City (83%) and Salt Lake City (17%).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- West Valley City · 3 residential ZIPs
- County
- Salt Lake County
- Census places
- West Valley City (83%); Salt Lake City (17%)
- Neighborhoods
- Addison Park One, Addison Park Three and Four, Apollo Hills, Bacchus Heights, Bailey, Bailey Meadows and 45 more GeoNames
- Metro area
- Salt Lake City-Murray, UT
- House district
- UT-2 119th Congress
- State
- Utah
- Time zone
- Mountain
- Land area
- 8.4 sq mi · 3,834 people per sq mi
Where is ZIP code 84128?
84128 centers on 40.705°, -112.043° and covers 8.4 square miles of land. It borders 4 ZIP codes: 84120, 84118, 84104, 84044.
The map draws ZIP code areas only. For the streets inside 84128, 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); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 84128 compare with the rest of West Valley City?
| Measure | 84128 | In West Valley City | In Salt Lake County | In UT |
|---|---|---|---|---|
| People (ACS 2020-2024) | 32,126 | 3rd of 3 | 18th of 42 | 46th of 298 |
| Median household income | $111k | 1st of 3 | 13th of 36 | 42nd of 145 |
| Median home value | $438k | 1st of 3 | 26th of 36 | 91st of 153 |
Its median household income is higher than in 87% of U.S. residential ZIP codes, and it is denser than 91% 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 84128?
The 2020 Census counted 31,406 people in 84128; the ACS, which samples households over 2020-2024, estimates 32,126. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 32,126±3,215 (90% margin)
- 2020 Census count
- 31,406
- Households
- 8,414
- Median age
- 30.9
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 84128?
Of the 32,126 people the ACS estimates in 84128, 33.5% are under 18 and 8.4% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (45.3%), then Hispanic or Latino (45.2%).
- Under 1833.5%
- 18 to 6458.1%
- 65 and older8.4%
- White, not Hispanic45.3%
- Hispanic or Latino45.2%
- Other or two or more5.6%
- Asian, not Hispanic3.5%
- 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 84128 earn?
Median household income is $110,726 (ACS 2020-2024), the 13th highest of the 36 ranked ZIP codes in Salt Lake County.
- Median household income
- $110,726
- Income per person
- $30,735
- Below the poverty line
- 5.2%
- Unemployed (of the labor force)
- 5.0%
- Adults 25+ with a bachelor's degree
- 17.1%
- Adjusted gross income per tax return, 2022
- $60,52414,570 returns; wages 84% 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 84128?
FHFA's house price index for 84128, built from repeat sales and appraisals of the same homes, rose 131% from 2015 to 2025 and rose 50% from 2020 to 2025, and moved +2.1% in 2025.
- Median home value (owners' estimate)
- $438,300
- Median gross rent
- $1,866
- Homes owned by their occupants
- 88.2%
- Housing units
- 8,599
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 84128?
317 business establishments had a location in this ZIP code in 2023, 83 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction106
- Transportation and warehousing39
- Administrative and support and waste management and remediation services33
- Professional, scientific, and technical services21
- Other services (except public administration)21
- Retail trade18
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 84128?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 84120 | West Valley City | 50,799 | $94k | 2.2 mi |
| 84118 | Salt Lake City | 42,853 | $91k | 3.4 mi |
| 84104 | Salt Lake City | 23,420 | $61k | 4.4 mi |
| 84044 | Magna | 30,031 | $90k | 4.6 mi |
| 84119 | West Valley City | 50,070 | $71k | 5.0 mi (near) |
| 84129 | Salt Lake City | 37,442 | $96k | 5.5 mi (near) |
| 84084 | West Jordan | 31,542 | $96k | 7.0 mi (near) |
| 84081 | West Jordan | 52,314 | $120k | 7.1 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.