84120 ZIP Code — West Valley City, UT

Salt Lake County, Utah

ZIP code 84120 is located in West Valley City, Utah, within Salt Lake County. It covers approximately 10.10 square miles and serves a population of 51,391 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 385/801.

About ZIP code 84120

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $339,700. Owner-occupancy is high at 76%, well above the national average.

Median household income is $85,758.

The dominant occupation class is sales and office, with education and healthcare as the leading industry. The average commute of 22 minutes is near the national average.

College attainment at 16% is below the national average, consistent with a trades and production-oriented local economy.

16% of residents lack health insurance, above the national average.

Overall, ZIP code 84120 reflects a community defined by a trades-oriented workforce and high homeownership.

51,391
population
10.10
sq mi land
Standard
ZIP type
Mountain (MT)
timezone
84120 ZIP code map
Cities in ZIP code 84120

Below are the cities the US Postal Service accepts for ZIP code 84120. Using any city not on this list may result in mail delivery delays.

City Status
West Valley City Acceptable
West Valley City Acceptable
West Valley City Preferred
Nearby ZIP codes
84128 West Valley City (2.3 mi) 84118 Salt Lake City (3.1 mi) 84119 West Valley City (3.2 mi) 84104 Salt Lake City (4.1 mi) 84129 Salt Lake City (4.3 mi) 84044 Magna (4.7 mi) 84123 Salt Lake City (5 mi) 84084 West Jordan (5.3 mi) 84115 Salt Lake City (5.8 mi) 84101 Salt Lake City (6.7 mi) 84107 Salt Lake City (6.7 mi) 84081 West Jordan (7.1 mi)
Demographics updated 05/2026
Population
Total population 51,391
Population density 5,088 / sq mi
State FIPS 49
County FIPS 035
Geography
Land area 10.10 sq mi
Water area 0.00 sq mi
Latitude 40.6967
Longitude -112.0009
Timezone Mountain (MT)
Area code 385/801
Total population by age
Gender
Race & ethnicity
Economics updated 05/2026
Household income
Income range This ZIP County avg State avg
Under $50k 30.8% 29.7% 31.5%
$50k – $100k 40.2% 33.5% 34.6%
$100k – $200k 25.1% 28.3% 27.0%
Over $200k 3.9% 8.5% 7.0%

Demographics & statistics

51,391
Population
5,088
People per sq mi
30.7
Median age
$85,758
Median household income
$27,156
Per capita income
$339,700
Median home value
$1,402
Median monthly rent
75.7%
Home ownership
11.0%
Poverty rate
2.7%
Unemployment
10,952
Housing units
16.0%
Bachelor's or higher

Age distribution

Male Female
2,370
Under 5
2,249
2,322
5–9
2,203
2,038
10–14
1,934
2,220
15–19
2,106
1,924
20–24
1,826
4,096
25–34
3,886
3,251
35–44
3,084
3,015
45–54
2,861
1,362
55–59
1,292
1,057
60–64
1,003
1,707
65–74
1,620
865
75–84
821
143
85+
136
← Male
Female →

Age summary

GroupCount%
Under 1815,77430.7%
18 and over35,61769.3%
65 and over5,29210.3%
Median age30.7 years

Race & ethnicity

White 41.1%
Hispanic or Latino 22.1%
Other race 17.5%
Two or more races 7.1%
Asian 5.4%
Native Hawaiian / Pacific Islander 4.8%
Black or African American 1.8%
American Indian / Alaska Native 0.3%
GroupCount%
White27,12541.1%
Hispanic or Latino14,59022.1%
Other race11,53717.5%
Two or more races4,6937.1%
Asian3,5525.4%
Native Hawaiian / Pacific Islander3,1384.8%
Black or African American1,1631.8%
American Indian / Alaska Native1830.3%

Household income

Income range This ZIP County avg State avg
Under $50k 30.8% 29.7% 31.5%
$50k – $100k 40.2% 33.5% 34.6%
$100k – $200k 25.1% 28.3% 27.0%
Over $200k 3.9% 8.5% 7.0%
Under $10k 1.2%
$10k–$15k 1.5%
$15k–$25k 4.4%
$25k–$35k 6.2%
$35k–$50k 11.3%
$50k–$75k 18.0%
$75k–$100k 17.1%
$100k–$150k 23.9%
$150k–$200k 9.1%
$200k+ 7.4%
Range% of households
Under $10k1.2%
$10k–$15k1.5%
$15k–$25k4.4%
$25k–$35k6.2%
$35k–$50k11.3%
$50k–$75k18.0%
$75k–$100k17.1%
$100k–$150k23.9%
$150k–$200k9.1%
$200k+7.4%
Median income$85,758

Housing

Home values

Under $50k 3.1%
$50k–$100k 1.0%
$100k–$150k 1.1%
$150k–$200k 1.7%
$200k–$300k 28.3%
$300k–$500k 56.2%
$500k–$1M 8.1%
$1M+ 0.6%

Housing overview

MetricValue
Median home value$339,700
Median rent / month$1,402
Owner occupied75.7%
Renter occupied24.3%
Vacant4.3%
Single-family detached76.0%
Large apartment buildings5.1%
Mobile homes3.7%
Median rooms6.8
Avg household size (owned)3.79

Year built

Era%
2020 or later0.3%
2010–20194.8%
2000–200910.2%
1990–199912.2%
1980–198912.6%
1970–197933.1%
1960–196917.2%
1950–19597.9%
1940–19490.7%
1939 or earlier1.0%

Bedrooms

Size% of units
No bedroom (studio)0.4%
1 bedroom2.6%
2 bedrooms19.0%
3 bedrooms25.7%
4 bedrooms30.2%
5+ bedrooms22.1%

Vehicles per household

Vehicles% of households
No vehicle4.2%
1 vehicle20.1%
2 vehicles36.9%
3 or more38.8%

Heating fuel

Fuel type%
Utility gas91.1%
Electricity7.2%
Propane / LP gas1.4%
Solar0.2%

Households & families

Household typeCount%
Married-couple family8,05459.0%
Cohabiting couple1,0017.3%
Male householder, no spouse1,87313.7%
Female householder, no spouse2,72019.9%
Households with children under 186,53947.9%
Households with seniors (65+)3,62426.6%
Average household size3.75

Marital status

StatusMaleFemale
Never married34.9%32.6%
Married52.1%48.1%
Separated2.7%2.9%
Widowed2.4%5.7%
Divorced7.9%10.7%

Education

Less than 9th grade 8.6%
Some HS, no diploma 8.6%
HS graduate 35.2%
Some college, no degree 23.4%
Associate's degree 8.1%
Bachelor's degree 10.8%
Graduate / professional 5.1%
Metric%
HS diploma or higher82.7%
Bachelor's or higher16.0%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool6004.2%
Kindergarten1,0807.5%
Elementary school6,34244.0%
High school3,68725.6%
College / grad school2,70318.8%

Employment

Industry of employment

Education & healthcare 14.0%
Manufacturing 13.9%
Retail trade 12.8%
Construction 11.7%
Transportation & utilities 10.1%
Professional & management 9.4%
Arts, food & hospitality 8.7%
Finance & real estate 7.4%
Other services 3.8%
Wholesale trade 3.1%
Public administration 3.0%
Information 1.4%
Agriculture & mining 0.7%

Occupation

Category%
Management, business & arts22.6%
Service14.8%
Sales & office27.4%
Natural resources & construction13.5%
Production & transportation21.6%

Employment type

Type%
Private sector85.8%
Government10.5%
Self-employed3.4%
Unpaid family workers0.2%

Commute

Method%
Drive alone73.6%
Carpool14.3%
Public transit2.0%
Walk1.1%
Work from home8.2%
Other means0.8%
Avg commute (minutes)21.7

Poverty

All people 11.0%
Under 18 years 17.2%
18 and over 8.4%
Married-couple families 4.2%
Female-led households 24.9%

Income support

Source% of households
Social Security26.4%
Retirement income19.3%
Supplemental Security6.0%
Cash public assistance2.3%
Food stamps / SNAP11.5%

Health indicators

Condition%
Obesity32.9%
High blood pressure26.9%
High cholesterol27.6%
Diabetes10.3%
Heart disease4.9%
Stroke2.6%
Asthma11.5%
Arthritis19.9%
Kidney disease2.6%
Pulmonary disease5.4%
Cancer4.6%
Behavior / access%
Smoking12.6%
Binge drinking13.1%
No physical activity22.7%
Less than 7 hrs sleep32.8%
Depression25.4%
Fair or poor health15.2%
Poor mental health17.2%
Poor physical health10.2%
No health insurance20.6%
Visited doctor (checkup)68.0%
Visited dentist62.3%
Cholesterol screening81.9%
Teeth loss14.5%

Veterans & disability

VeteransCount%
Civilian veterans1,6384.6%
Disability%
Any disability10.8%
Under 184.8%
18–64 years9.6%
65 and over35.5%

Health insurance coverage

Type%
Private insurance65.8%
Public insurance26.0%
No insurance15.5%
Uninsured under 1912.5%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only46,77291.0%
Spanish7,14115.3%
Other Indo-European5,00310.7%
Asian & Pacific Islander4160.9%
Other languages1,6213.5%

Place of birth & citizenship

OriginCount%
Native born (US)39,78177.4%
Born in same state38,90375.7%
Born in different state29,12556.7%
Foreign born8781.7%
Naturalized citizen11,61022.6%
Not a US citizen4,69840.5%

Ancestry

AncestryCount%
French7,93515.4%
Italian2,2824.4%
Arab1,9813.9%
Dutch1,1692.3%
Polish7951.5%
AncestryCount%
English4120.8%
Irish980.2%
German920.2%
Norwegian70%

Technology access

Metric% of households
Computer access26.6%
Internet access97.1%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 84120

What part of West Valley City is ZIP code 84120?

ZIP code 84120 covers a portion of West Valley City, Utah, within Salt Lake County.

What county is ZIP code 84120 in?

ZIP code 84120 falls within Salt Lake County, Utah.

Is ZIP code 84120 family-oriented?

31% of residents in ZIP code 84120 are under 18, reflecting a younger, family-oriented community.

What is the typical home value in ZIP code 84120?

The median home value in ZIP code 84120 is $339,700.

What is the population of ZIP code 84120?

ZIP code 84120 has an estimated population of 51,391 residents, with a density of 5,089 people per square mile.

What is the median household income in ZIP code 84120?

The median household income in ZIP code 84120 is $85,758, above the national median of ~$75,000.

What timezone is ZIP code 84120 in?

ZIP code 84120 observes the MST timezone.

Need the complete ZIP code database? Download all 42,000+ US ZIP codes — Excel, CSV, or Access. Includes lat/lng, county FIPS & timezone.
Download database →