84331 ZIP Code — Portage, UT

Box Elder County, Utah

ZIP code 84331 is located in Portage, Utah, within Box Elder County. It covers approximately 143.13 square miles and serves a population of 226 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 435.

About ZIP code 84331

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 $257,700. Owner-occupancy is high at 78%, well above the national average.

The gap between median ($55,417) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 6% is below the national average. 43% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is production, transportation, and material moving, with manufacturing as the leading industry. An above-average commute of 37 minutes suggests many residents work outside the immediate area.

College attainment at 13% is below the national average, consistent with a trades and production-oriented local economy.

Notable community characteristics include a notable veteran presence at 12% of civilians, above the national average of 7%.

Overall, ZIP code 84331 reflects a community defined by a trades-oriented workforce, a strong veteran community, high homeownership, and a significant Social Security-dependent population.

226

population

143.13

sq mi land

Standard

ZIP type

Mountain (MT)

timezone

84331 ZIP code map

Cities in ZIP code 84331

Below are the cities the US Postal Service accepts for ZIP code 84331. Using any city not on this list may result in mail delivery delays.

City	Status
Portage	Acceptable

Demographics updated 06/2026

Population
Total population	226
Population density	2 / sq mi
State FIPS	49
County FIPS	003

Geography
Land area	143.13 sq mi
Water area	0.00 sq mi
Latitude	41.9435
Longitude	-112.1688
Timezone	Mountain (MT)
Area code	435

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	45.6%	36.1%	31.5%
$50k – $100k	35.9%	38.9%	34.6%
$100k – $200k	13.6%	21.7%	27.0%
Over $200k	4.9%	3.3%	7.0%

Demographics & statistics

226

Population

People per sq mi

33.0

Median age

$55,417

Median household income

$30,200

Per capita income

$257,700

Median home value

$1,104

Median monthly rent

77.9%

Home ownership

6.3%

Poverty rate

4.7%

Unemployment

106

Housing units

12.6%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	73	32.3%
18 and over	153	67.7%
65 and over	31	13.7%
Median age	33.0 years

Race & ethnicity

White 90%

Two or more races 3.5%

Hispanic or Latino 2.2%

Other race 2.2%

Black or African American 1.3%

American Indian / Alaska Native 0.9%

Group	Count	%
White	208	90%
Two or more races	8	3.5%
Hispanic or Latino	5	2.2%
Other race	5	2.2%
Black or African American	3	1.3%
American Indian / Alaska Native	2	0.9%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	45.6%	36.1%	31.5%
$50k – $100k	35.9%	38.9%	34.6%
$100k – $200k	13.6%	21.7%	27.0%
Over $200k	4.9%	3.3%	7.0%

Under $10k 7.8%

$10k–$15k 2.6%

$15k–$25k 2.6%

$25k–$35k 9.1%

$35k–$50k 23.4%

$50k–$75k 24.7%

$75k–$100k 9.1%

$100k–$150k 7.8%

$150k–$200k 2.6%

$200k+ 10.4%

Range	% of households
Under $10k	7.8%
$10k–$15k	2.6%
$15k–$25k	2.6%
$25k–$35k	9.1%
$35k–$50k	23.4%
$50k–$75k	24.7%
$75k–$100k	9.1%
$100k–$150k	7.8%
$150k–$200k	2.6%
$200k+	10.4%
Median income	$55,417

Housing

Home values

Under $50k 8.3%

$50k–$100k 5.0%

$100k–$150k 6.7%

$150k–$200k 15.0%

$200k–$300k 33.3%

$300k–$500k 20.0%

$500k–$1M 11.7%

Housing overview

Metric	Value
Median home value	$257,700
Median rent / month	$1,104
Owner occupied	77.9%
Renter occupied	22.1%
Vacant	37.4%
Single-family detached	87.8%
Large apartment buildings	0.0%
Mobile homes	8.1%
Median rooms	10.0
Avg household size (owned)	2.60

Year built

Era	%
2020 or later	0.8%
2010–2019	3.3%
2000–2009	13.0%
1990–1999	8.1%
1980–1989	4.1%
1970–1979	35.8%
1960–1969	4.1%
1950–1959	0.0%
1940–1949	1.6%
1939 or earlier	29.3%

Bedrooms

Size	% of units
No bedroom (studio)	1.6%
1 bedroom	0.8%
2 bedrooms	26.8%
3 bedrooms	22.8%
4 bedrooms	39.8%
5+ bedrooms	8.1%

Vehicles per household

Vehicles	% of households
No vehicle	1.3%
1 vehicle	23.4%
2 vehicles	35.1%
3 or more	40.3%

Heating fuel

Fuel type	%
Utility gas	1.3%
Electricity	9.1%
Propane / LP gas	61.0%
Fuel oil	1.3%
Wood	22.1%

Households & families

Household type	Count	%
Married-couple family	48	62.3%
Cohabiting couple	3	3.9%
Male householder, no spouse	11	14.3%
Female householder, no spouse	15	19.5%
Households with children under 18	29	37.7%
Households with seniors (65+)	22	28.6%
Average household size	2.94

Marital status

Status	Male	Female
Never married	14.3%	12.5%
Married	67.5%	61.3%
Separated	5.2%	0.0%
Widowed	1.3%	8.8%
Divorced	11.7%	17.5%

Education

Less than 9th grade 0.0%

Some HS, no diploma 2.8%

HS graduate 46.2%

Some college, no degree 32.9%

Associate's degree 5.6%

Bachelor's degree 9.8%

Graduate / professional 2.8%

Metric	%
HS diploma or higher	97.2%
Bachelor's or higher	12.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	10	17.9%
Kindergarten	7	12.5%
Elementary school	29	51.8%
High school	8	14.3%
College / grad school	2	3.6%

Employment

Industry of employment

Manufacturing 37.8%

Construction 17.1%

Retail trade 12.2%

Education & healthcare 11.0%

Transportation & utilities 7.3%

Public administration 6.1%

Other services 4.9%

Professional & management 2.4%

Arts, food & hospitality 1.2%

Occupation

Category	%
Management, business & arts	12.2%
Service	7.3%
Sales & office	24.4%
Natural resources & construction	23.2%
Production & transportation	32.9%

Employment type

Type	%
Private sector	81.7%
Government	17.1%
Self-employed	1.2%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	77.8%
Carpool	18.5%
Public transit	0.0%
Walk	0.0%
Work from home	2.5%
Other means	1.2%
Avg commute (minutes)	36.8

Poverty

All people 6.3%

Under 18 years 1.4%

18 and over 8.5%

Married-couple families 4.2%

Female-led households 100.0%

Income support

Source	% of households
Social Security	42.9%
Retirement income	35.1%
Supplemental Security	3.9%
Cash public assistance	0.0%
Food stamps / SNAP	14.3%

Health indicators

Condition	%
Obesity	32.6%
High blood pressure	31.7%
High cholesterol	33.4%
Diabetes	10.0%
Heart disease	6.6%
Stroke	3.1%
Asthma	10.7%
Arthritis	29.8%
Kidney disease	3.0%
Pulmonary disease	6.5%
Cancer	6.9%

Behavior / access	%
Smoking	11.4%
Binge drinking	10.2%
No physical activity	19.3%
Less than 7 hrs sleep	33.4%
Depression	23.9%
Fair or poor health	13.5%
Poor mental health	14.7%
Poor physical health	10.9%
No health insurance	12.2%
Visited doctor (checkup)	71.7%
Visited dentist	70.2%
Cholesterol screening	87.1%
Teeth loss	13.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	18	11.8%

Disability	%
Any disability	18.6%
Under 18	0.0%
18–64 years	23.0%
65 and over	45.2%

Health insurance coverage

Type	%
Private insurance	73.9%
Public insurance	28.3%
No insurance	7.5%
Uninsured under 19	9.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	202	89.4%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	222	98.2%
Born in same state	222	98.2%
Born in different state	167	73.9%
Foreign born	0	0.0%
Naturalized citizen	4	1.8%
Not a US citizen	4	100.0%

Ancestry

Ancestry	Count	%
French	97	42.9%
Dutch	18	8%
Italian	8	3.5%

Ancestry	Count	%
Polish	5	2.2%
English	2	0.9%
Arab	1	0.4%

Technology access

Metric	% of households
Computer access	34.1%
Internet access	94.8%

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

Frequently asked questions about ZIP code 84331

What city is ZIP code 84331 in?

ZIP code 84331 is primarily assigned to Portage, Utah.

What county is ZIP code 84331 in?

ZIP code 84331 falls within Box Elder County, Utah.

Is ZIP code 84331 family-oriented?

32% of residents in ZIP code 84331 are under 18, reflecting a younger, family-oriented community.

How educated is the population of ZIP code 84331?

13% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Does ZIP code 84331 have a large retiree population?

43% of households in ZIP code 84331 receive Social Security income, suggesting a significant retiree or disability population.

Does ZIP code 84331 have a large veteran population?

12% of civilians in ZIP code 84331 are veterans, above the national average of ~7%.

What timezone is ZIP code 84331 in?

ZIP code 84331 observes the MST timezone.