84631 ZIP Code — Fillmore, UT

Millard County, Utah

ZIP code 84631 is located in Fillmore, Utah, within Millard County. It covers approximately 126.48 square miles and serves a population of 2,986 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 435.

About ZIP code 84631

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 $236,500. Owner-occupancy is high at 79%, well above the national average.

The gap between median ($75,278) and mean household income suggests income inequality — a small number of higher earners pull the average up. 40% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is production, transportation, and material moving, with retail trade as the leading industry. The average commute of 12 minutes is near the national average.

Educational attainment is near the national average, with 24% of residents holding a bachelor's degree or higher.

Overall, ZIP code 84631 reflects a community defined by high homeownership and a significant Social Security-dependent population.

2,986
population
126.48
sq mi land
Standard
ZIP type
Mountain (MT)
timezone
84631 ZIP code map
Cities in ZIP code 84631

Below are the cities the US Postal Service accepts for ZIP code 84631. Using any city not on this list may result in mail delivery delays.

City Status
Fillmore Acceptable
Fillmore Preferred
Demographics updated 06/2026
Population
Total population 2,986
Population density 24 / sq mi
State FIPS 49
County FIPS 027
Geography
Land area 126.48 sq mi
Water area 0.00 sq mi
Latitude 38.9503
Longitude -112.6010
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 38.7% 37.2% 31.5%
$50k – $100k 40.6% 40.5% 34.6%
$100k – $200k 15.0% 19.3% 27.0%
Over $200k 5.6% 2.9% 7.0%

Demographics & statistics

2,986
Population
24
People per sq mi
35.7
Median age
$75,278
Median household income
$30,617
Per capita income
$236,500
Median home value
$725
Median monthly rent
78.7%
Home ownership
7.6%
Poverty rate
5.2%
Unemployment
801
Housing units
24.0%
Bachelor's or higher

Age distribution

Male Female
68
Under 5
57
140
5–9
118
178
10–14
150
248
15–19
209
36
20–24
30
121
25–34
103
284
35–44
240
128
45–54
109
87
55–59
73
70
60–64
60
109
65–74
92
115
75–84
98
34
85+
29
← Male
Female →

Age summary

GroupCount%
Under 1898032.8%
18 and over2,00667.2%
65 and over47716.0%
Median age35.7 years

Race & ethnicity

White 69.3%
Hispanic or Latino 12.7%
Other race 12.6%
Asian 3.8%
American Indian / Alaska Native 1.3%
Two or more races 0.2%
GroupCount%
White2,37269.3%
Hispanic or Latino43612.7%
Other race43212.6%
Asian1313.8%
American Indian / Alaska Native431.3%
Two or more races70.2%

Household income

Income range This ZIP County avg State avg
Under $50k 38.7% 37.2% 31.5%
$50k – $100k 40.6% 40.5% 34.6%
$100k – $200k 15.0% 19.3% 27.0%
Over $200k 5.6% 2.9% 7.0%
Under $10k 1.8%
$10k–$15k 3.8%
$15k–$25k 7.4%
$25k–$35k 3.4%
$35k–$50k 15.1%
$50k–$75k 18.0%
$75k–$100k 18.3%
$100k–$150k 15.2%
$150k–$200k 11.4%
$200k+ 5.6%
Range% of households
Under $10k1.8%
$10k–$15k3.8%
$15k–$25k7.4%
$25k–$35k3.4%
$35k–$50k15.1%
$50k–$75k18.0%
$75k–$100k18.3%
$100k–$150k15.2%
$150k–$200k11.4%
$200k+5.6%
Median income$75,278

Housing

Home values

Under $50k 4.7%
$50k–$100k 6.6%
$100k–$150k 20.1%
$150k–$200k 5.4%
$200k–$300k 31.5%
$300k–$500k 24.4%
$500k–$1M 7.3%

Housing overview

MetricValue
Median home value$236,500
Median rent / month$725
Owner occupied78.7%
Renter occupied21.3%
Vacant11.8%
Single-family detached82.5%
Large apartment buildings1.9%
Mobile homes6.9%
Median rooms6.5
Avg household size (owned)3.67

Year built

Era%
2020 or later0.8%
2010–20196.5%
2000–20097.8%
1990–199910.1%
1980–19899.6%
1970–197929.7%
1960–19697.5%
1950–19593.7%
1940–19497.1%
1939 or earlier17.1%

Bedrooms

Size% of units
No bedroom (studio)1.3%
1 bedroom9.5%
2 bedrooms13.2%
3 bedrooms29.8%
4 bedrooms21.5%
5+ bedrooms24.6%

Vehicles per household

Vehicles% of households
No vehicle3.2%
1 vehicle19.0%
2 vehicles26.0%
3 or more51.8%

Heating fuel

Fuel type%
Utility gas75.3%
Electricity8.4%
Propane / LP gas3.9%
Wood12.2%
No fuel used0.2%

Households & families

Household typeCount%
Married-couple family57265.7%
Cohabiting couple263.0%
Male householder, no spouse12214.0%
Female householder, no spouse15017.2%
Households with children under 1841147.2%
Households with seniors (65+)31536.2%
Average household size3.36

Marital status

StatusMaleFemale
Never married29.0%31.5%
Married60.4%52.9%
Separated1.9%0.0%
Widowed1.1%7.6%
Divorced7.6%7.9%

Education

Less than 9th grade 6.2%
Some HS, no diploma 12.6%
HS graduate 25.9%
Some college, no degree 22.2%
Associate's degree 9.1%
Bachelor's degree 16.7%
Graduate / professional 7.4%
Metric%
HS diploma or higher81.2%
Bachelor's or higher24.0%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool757.3%
Kindergarten181.8%
Elementary school43442.4%
High school44243.2%
College / grad school555.4%

Employment

Industry of employment

Retail trade 18.8%
Education & healthcare 14.1%
Agriculture & mining 11.1%
Manufacturing 10.3%
Transportation & utilities 9.2%
Other services 8.8%
Public administration 8.1%
Arts, food & hospitality 7.7%
Professional & management 4.9%
Construction 3.9%
Information 2.3%
Finance & real estate 0.8%

Occupation

Category%
Management, business & arts25.2%
Service18.0%
Sales & office13.6%
Natural resources & construction16.5%
Production & transportation26.7%

Employment type

Type%
Private sector75.4%
Government20.0%
Self-employed4.4%
Unpaid family workers0.2%

Commute

Method%
Drive alone75.6%
Carpool9.2%
Public transit0.1%
Walk0.6%
Work from home8.1%
Other means6.4%
Avg commute (minutes)12.2

Poverty

All people 7.6%
Under 18 years 11.5%
18 and over 5.7%
Married-couple families 2.4%
Female-led households 36.9%

Income support

Source% of households
Social Security40.2%
Retirement income25.2%
Supplemental Security2.9%
Cash public assistance2.8%
Food stamps / SNAP3.3%

Health indicators

Condition%
Obesity26.7%
High blood pressure29.9%
High cholesterol31.0%
Diabetes10.2%
Heart disease6.4%
Stroke3.0%
Asthma10.3%
Arthritis26.7%
Kidney disease2.9%
Pulmonary disease6.0%
Cancer6.8%
Behavior / access%
Smoking10.8%
Binge drinking10.6%
No physical activity19.4%
Less than 7 hrs sleep31.4%
Depression21.9%
Fair or poor health13.4%
Poor mental health14.3%
Poor physical health10.2%
No health insurance14.6%
Visited doctor (checkup)70.5%
Visited dentist68.8%
Cholesterol screening86.4%
Teeth loss12.9%

Veterans & disability

VeteransCount%
Civilian veterans1688.4%
Disability%
Any disability8.3%
Under 180.0%
18–64 years8.5%
65 and over24.8%

Health insurance coverage

Type%
Private insurance76.0%
Public insurance28.1%
No insurance9.7%
Uninsured under 199.6%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only2,86195.8%
Spanish34412.0%
Other Indo-European32511.4%
Asian & Pacific Islander00.0%
Other languages190.7%

Place of birth & citizenship

OriginCount%
Native born (US)2,56986.0%
Born in same state2,56986.0%
Born in different state1,91364.1%
Foreign born00.0%
Naturalized citizen41714.0%
Not a US citizen14234.1%

Ancestry

AncestryCount%
French87729.4%
Italian2187.3%
Dutch1314.4%
AncestryCount%
Arab581.9%
Polish531.8%
English291%

Technology access

Metric% of households
Computer access29.1%
Internet access95.4%

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

Frequently asked questions about ZIP code 84631

What city is ZIP code 84631 in?

ZIP code 84631 is primarily assigned to Fillmore, Utah.

What county is ZIP code 84631 in?

ZIP code 84631 falls within Millard County, Utah.

Is ZIP code 84631 family-oriented?

33% of residents in ZIP code 84631 are under 18, reflecting a younger, family-oriented community.

Does ZIP code 84631 have a large retiree population?

40% of households in ZIP code 84631 receive Social Security income, suggesting a significant retiree or disability population.

What is the population of ZIP code 84631?

ZIP code 84631 has an estimated population of 2,986 residents, with a density of 24 people per square mile.

What is the typical home value in ZIP code 84631?

The median home value in ZIP code 84631 is $236,500.

What timezone is ZIP code 84631 in?

ZIP code 84631 observes the MST timezone.

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