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Utah ZIP Codes
Box Elder County
Willard, UT
84340
84340 ZIP Code — Willard, UT
Box Elder County, Utah
ZIP code 84340 is located in
Willard ,
Utah ,
within Box Elder County .
It covers approximately 32.16 square miles and serves a population of
3,301 residents.
This is a standard ZIP code in the Mountain (MT) timezone,
served by area code 435 .
About ZIP code 84340
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $368,800. Owner-occupancy is high at 87%, well above the national average.
Median household income is $100,762. The poverty rate of 3% is below the national average. 32% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with manufacturing as the leading industry. The average commute of 25 minutes is near the national average. Remote work is prevalent — 22% of workers work from home.
Educational attainment is near the national average, with 35% of residents holding a bachelor's degree or higher.
Overall, ZIP code 84340 reflects a community defined by high homeownership, a high rate of remote workers, and a significant Social Security-dependent population.
84340 ZIP code map
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Cities in ZIP code 84340
Below are the cities the US Postal Service accepts for ZIP code 84340. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
3,301
Population density
103 / sq mi
State FIPS
49
County FIPS
003
Geography
Land area
32.16 sq mi
Water area
22.99 sq mi
Latitude
41.3608
Longitude
-112.1514
Timezone
Mountain (MT)
Area code
435
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
30.9%
36.1%
31.5%
$50k – $100k
32.8%
38.9%
34.6%
$100k – $200k
30.1%
21.7%
27.0%
Over $200k
6.2%
3.3%
7.0%
Demographics & statistics
$100,762
Median household income
$368,800
Median home value
$1,486
Median monthly rent
35.4%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 804 24.4%
18 and over 2,497 75.6%
65 and over 538 16.3%
Median age 38.8 years
Race & ethnicity
Group Count %
White 3,064 89%
Hispanic or Latino 141 4.1%
Other race 110 3.2%
Two or more races 97 2.8%
Asian 30 0.9%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
30.9%
36.1%
31.5%
$50k – $100k
32.8%
38.9%
34.6%
$100k – $200k
30.1%
21.7%
27.0%
Over $200k
6.2%
3.3%
7.0%
Range % of households
Under $10k 1.7%
$10k–$15k 1.4%
$15k–$25k 4.4%
$25k–$35k 6.2%
$35k–$50k 9.9%
$50k–$75k 11.6%
$75k–$100k 13.7%
$100k–$150k 26.1%
$150k–$200k 13.3%
$200k+ 11.8%
Median income $100,762
Housing
Housing overview
Metric Value
Median home value $368,800
Median rent / month $1,486
Owner occupied 87.4%
Renter occupied 12.6%
Vacant 2.4%
Single-family detached 90.2%
Large apartment buildings 0.0%
Mobile homes 7.5%
Median rooms 7.9
Avg household size (owned) 2.99
Year built
Era %
2020 or later 0.3%
2010–2019 9.8%
2000–2009 30.5%
1990–1999 8.7%
1980–1989 9.9%
1970–1979 11.0%
1960–1969 6.2%
1950–1959 7.3%
1940–1949 4.2%
1939 or earlier 12.2%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 0.7%
2 bedrooms 12.0%
3 bedrooms 26.4%
4 bedrooms 26.3%
5+ bedrooms 34.5%
Vehicles per household
Vehicles % of households
No vehicle 0.6%
1 vehicle 14.7%
2 vehicles 34.8%
3 or more 50.0%
Heating fuel
Fuel type %
Utility gas 92.5%
Electricity 7.0%
Wood 0.3%
Solar 0.3%
Households & families
Household type Count %
Married-couple family 771 70.8%
Cohabiting couple 20 1.8%
Male householder, no spouse 139 12.8%
Female householder, no spouse 159 14.6%
Households with children under 18 358 32.9%
Households with seniors (65+) 343 31.5%
Average household size 3.03
Marital status
Status Male Female
Never married 29.0% 15.6%
Married 61.6% 62.7%
Separated 0.2% 2.2%
Widowed 1.4% 4.8%
Divorced 7.8% 14.7%
Education
Some college, no degree
22.1%
Graduate / professional
12.9%
Metric %
HS diploma or higher 91.8%
Bachelor's or higher 35.4%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 65 8.5%
Kindergarten 61 7.9%
Elementary school 355 46.2%
High school 172 22.4%
College / grad school 116 15.1%
Employment
Industry of employment
Education & healthcare
18.5%
Public administration
11.8%
Professional & management
10.1%
Arts, food & hospitality
6.4%
Transportation & utilities
4.5%
Finance & real estate
2.8%
Agriculture & mining
2.3%
Occupation
Category %
Management, business & arts 45.9%
Service 11.6%
Sales & office 18.6%
Natural resources & construction 6.5%
Production & transportation 17.5%
Employment type
Type %
Private sector 76.9%
Government 20.7%
Self-employed 2.4%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 67.4%
Carpool 8.3%
Public transit 1.3%
Walk 0.5%
Work from home 22.3%
Other means 0.2%
Avg commute (minutes) 25.3
Poverty
Married-couple families
0.5%
Female-led households
5.1%
Income support
Source % of households
Social Security 32.1%
Retirement income 29.0%
Supplemental Security 4.1%
Cash public assistance 1.0%
Food stamps / SNAP 3.1%
Health indicators
Condition %
Obesity 31.3%
High blood pressure 26.2%
High cholesterol 29.3%
Diabetes 7.8%
Heart disease 4.8%
Stroke 2.3%
Asthma 10.3%
Arthritis 24.1%
Kidney disease 2.3%
Pulmonary disease 4.7%
Cancer 5.6%
Behavior / access %
Smoking 10.3%
Binge drinking 11.4%
No physical activity 16.1%
Less than 7 hrs sleep 33.3%
Depression 24.0%
Fair or poor health 10.5%
Poor mental health 14.7%
Poor physical health 8.8%
No health insurance 11.6%
Visited doctor (checkup) 69.3%
Visited dentist 73.0%
Cholesterol screening 86.4%
Teeth loss 10.4%
Veterans & disability
Veterans Count %
Civilian veterans 202 8.1%
Disability %
Any disability 12.0%
Under 18 2.2%
18–64 years 9.9%
65 and over 34.0%
Health insurance coverage
Type %
Private insurance 80.7%
Public insurance 26.6%
No insurance 5.9%
Uninsured under 19 3.4%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 3,071 93.0%
Spanish 57 1.9%
Other Indo-European 44 1.4%
Asian & Pacific Islander 8 0.3%
Other languages 5 0.2%
Place of birth & citizenship
Origin Count %
Native born (US) 3,278 99.3%
Born in same state 3,238 98.1%
Born in different state 2,409 73.0%
Foreign born 40 1.2%
Naturalized citizen 23 0.7%
Not a US citizen 18 78.3%
Ancestry
Ancestry Count %
French 841 25.5%
Dutch 177 5.4%
Italian 174 5.3%
Arab 128 3.9%
Ancestry Count %
English 121 3.7%
Polish 109 3.3%
Irish 10 0.3%
German 3 0.1%
Technology access
Metric % of households
Computer access 33.0%
Internet access 97.6%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 84340
What city is ZIP code 84340 in?
ZIP code 84340 is primarily assigned to Willard, Utah.
What county is ZIP code 84340 in?
ZIP code 84340 falls within Box Elder County, Utah.
Is ZIP code 84340 mostly owner-occupied?
87% of occupied units in ZIP code 84340 are owner-occupied, well above the national average.
What is the typical home value in ZIP code 84340?
The median home value in ZIP code 84340 is $368,800.
What is the population of ZIP code 84340?
ZIP code 84340 has an estimated population of 3,301 residents, with a density of 103 people per square mile.
What is the median household income in ZIP code 84340?
The median household income in ZIP code 84340 is $100,762, above the national median of ~$75,000.
What timezone is ZIP code 84340 in?
ZIP code 84340 observes the MST timezone.
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