83445 ZIP Code — Saint Anthony, ID

Fremont County, Idaho

ZIP code 83445 is located in Saint Anthony, Idaho, within Fremont County. It covers approximately 300.74 square miles and serves a population of 7,213 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 208.

About ZIP code 83445

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 $210,900. Owner-occupancy is high at 79%, well above the national average.

Median household income is $60,352. 38% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is production, transportation, and material moving, with education and healthcare as the leading industry. The average commute of 24 minutes is near the national average.

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

Overall, ZIP code 83445 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

7,213

population

300.74

sq mi land

Standard

ZIP type

Mountain (MT)

timezone

83445 ZIP code map

Cities in ZIP code 83445

Below are the cities the US Postal Service accepts for ZIP code 83445. Using any city not on this list may result in mail delivery delays.

City	Status
Saint Anthony	Acceptable
Saint Anthony	Preferred

Nearby ZIP codes

83420 Ashton (16.9 mi) 83446 Spencer (19.7 mi)

Demographics updated 06/2026

Population
Total population	7,213
Population density	24 / sq mi
State FIPS	16
County FIPS	043

Geography
Land area	300.74 sq mi
Water area	2.45 sq mi
Latitude	44.1884
Longitude	-111.6027
Timezone	Mountain (MT)
Area code	208

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	42.7%	42.4%	41.8%
$50k – $100k	36.7%	37.8%	34.0%
$100k – $200k	19.3%	18.3%	19.5%
Over $200k	1.3%	1.5%	4.7%

Demographics & statistics

7,213

Population

People per sq mi

35.5

Median age

$60,352

Median household income

$23,672

Per capita income

$210,900

Median home value

$724

Median monthly rent

79.4%

Home ownership

15.3%

Poverty rate

4.0%

Unemployment

1,973

Housing units

15.8%

Bachelor's or higher

Age distribution

Male Female

204

Under 5

178

270

5–9

236

294

10–14

257

397

15–19

347

215

20–24

188

530

25–34

462

507

35–44

443

472

45–54

413

211

55–59

184

239

60–64

209

279

65–74

244

160

75–84

140

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,914	26.5%
18 and over	5,299	73.5%
65 and over	957	13.3%
Median age	35.5 years

Race & ethnicity

White 79.7%

Hispanic or Latino 8.1%

Other race 6.5%

Two or more races 2.9%

American Indian / Alaska Native 2.2%

Black or African American 0.4%

Asian 0.1%

Group	Count	%
White	6,257	79.7%
Hispanic or Latino	636	8.1%
Other race	511	6.5%
Two or more races	229	2.9%
American Indian / Alaska Native	175	2.2%
Black or African American	34	0.4%
Asian	7	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	42.7%	42.4%	41.8%
$50k – $100k	36.7%	37.8%	34.0%
$100k – $200k	19.3%	18.3%	19.5%
Over $200k	1.3%	1.5%	4.7%

Under $10k 3.9%

$10k–$15k 5.0%

$15k–$25k 7.7%

$25k–$35k 12.0%

$35k–$50k 14.1%

$50k–$75k 21.2%

$75k–$100k 14.1%

$100k–$150k 15.6%

$150k–$200k 5.2%

$200k+ 1.4%

Range	% of households
Under $10k	3.9%
$10k–$15k	5.0%
$15k–$25k	7.7%
$25k–$35k	12.0%
$35k–$50k	14.1%
$50k–$75k	21.2%
$75k–$100k	14.1%
$100k–$150k	15.6%
$150k–$200k	5.2%
$200k+	1.4%
Median income	$60,352

Housing

Home values

Under $50k 14.5%

$50k–$100k 4.9%

$100k–$150k 11.4%

$150k–$200k 16.0%

$200k–$300k 22.5%

$300k–$500k 24.4%

$500k–$1M 6.1%

$1M+ 0.2%

Housing overview

Metric	Value
Median home value	$210,900
Median rent / month	$724
Owner occupied	79.4%
Renter occupied	20.6%
Vacant	11.0%
Single-family detached	72.4%
Large apartment buildings	0.1%
Mobile homes	21.3%
Median rooms	6.6
Avg household size (owned)	3.23

Year built

Era	%
2020 or later	0.0%
2010–2019	3.9%
2000–2009	15.6%
1990–1999	6.7%
1980–1989	12.6%
1970–1979	20.2%
1960–1969	9.4%
1950–1959	5.2%
1940–1949	8.6%
1939 or earlier	17.8%

Bedrooms

Size	% of units
No bedroom (studio)	2.2%
1 bedroom	2.9%
2 bedrooms	23.7%
3 bedrooms	38.7%
4 bedrooms	24.1%
5+ bedrooms	8.4%

Vehicles per household

Vehicles	% of households
No vehicle	2.7%
1 vehicle	17.3%
2 vehicles	36.0%
3 or more	43.9%

Heating fuel

Fuel type	%
Utility gas	38.0%
Electricity	27.3%
Propane / LP gas	22.1%
Fuel oil	0.7%
Wood	11.5%
No fuel used	0.5%

Households & families

Household type	Count	%
Married-couple family	1,350	62.8%
Cohabiting couple	128	6.0%
Male householder, no spouse	257	12.0%
Female householder, no spouse	415	19.3%
Households with children under 18	831	38.7%
Households with seniors (65+)	622	28.9%
Average household size	3.14

Marital status

Status	Male	Female
Never married	32.3%	23.1%
Married	49.0%	55.3%
Separated	3.2%	0.6%
Widowed	1.4%	8.4%
Divorced	14.1%	12.6%

Education

Less than 9th grade 3.5%

Some HS, no diploma 8.6%

HS graduate 36.1%

Some college, no degree 23.4%

Associate's degree 12.5%

Bachelor's degree 12.6%

Graduate / professional 3.2%

Metric	%
HS diploma or higher	87.8%
Bachelor's or higher	15.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	64	3.2%
Kindergarten	108	5.4%
Elementary school	845	42.1%
High school	526	26.2%
College / grad school	465	23.2%

Employment

Industry of employment

Education & healthcare 17.9%

Retail trade 10.7%

Arts, food & hospitality 10.4%

Construction 10.3%

Manufacturing 9.7%

Public administration 8.2%

Transportation & utilities 8.0%

Professional & management 7.7%

Agriculture & mining 5.6%

Other services 4.4%

Finance & real estate 3.8%

Information 2.5%

Wholesale trade 0.6%

Occupation

Category	%
Management, business & arts	23.6%
Service	14.8%
Sales & office	20.8%
Natural resources & construction	16.8%
Production & transportation	23.9%

Employment type

Type	%
Private sector	76.0%
Government	16.3%
Self-employed	5.3%
Unpaid family workers	2.3%

Commute

Method	%
Drive alone	73.8%
Carpool	14.2%
Public transit	0.3%
Walk	1.2%
Work from home	9.1%
Other means	1.4%
Avg commute (minutes)	24.3

Poverty

All people 15.3%

Under 18 years 17.5%

18 and over 14.5%

Married-couple families 10.4%

Female-led households 17.7%

Income support

Source	% of households
Social Security	37.5%
Retirement income	25.2%
Supplemental Security	8.0%
Cash public assistance	2.1%
Food stamps / SNAP	11.4%

Health indicators

Condition	%
Obesity	32.8%
High blood pressure	29.5%
High cholesterol	29.0%
Diabetes	9.4%
Heart disease	6.1%
Stroke	2.9%
Asthma	9.6%
Arthritis	22.4%
Kidney disease	2.7%
Pulmonary disease	6.3%
Cancer	5.9%

Behavior / access	%
Smoking	17.2%
Binge drinking	15.4%
No physical activity	22.8%
Less than 7 hrs sleep	31.5%
Depression	19.4%
Fair or poor health	14.1%
Poor mental health	14.2%
Poor physical health	10.9%
No health insurance	18.6%
Visited doctor (checkup)	67.0%
Visited dentist	61.9%
Cholesterol screening	84.2%
Teeth loss	15.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	347	6.5%

Disability	%
Any disability	21.3%
Under 18	9.9%
18–64 years	20.4%
65 and over	46.5%

Health insurance coverage

Type	%
Private insurance	54.7%
Public insurance	42.1%
No insurance	14.9%
Uninsured under 19	6.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	6,831	94.7%
Spanish	276	4.0%
Other Indo-European	276	4.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	6,838	94.8%
Born in same state	6,821	94.6%
Born in different state	4,354	60.4%
Foreign born	17	0.2%
Naturalized citizen	375	5.2%
Not a US citizen	29	7.7%

Ancestry

Ancestry	Count	%
French	2,055	28.5%
Italian	403	5.6%
Arab	334	4.6%

Ancestry	Count	%
Dutch	297	4.1%
Polish	196	2.7%
English	171	2.4%

Technology access

Metric	% of households
Computer access	29.8%
Internet access	93.7%

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

Frequently asked questions about ZIP code 83445

What city is ZIP code 83445 in?

ZIP code 83445 is primarily assigned to Saint Anthony, Idaho.

What county is ZIP code 83445 in?

ZIP code 83445 falls within Fremont County, Idaho.

What is the poverty rate in ZIP code 83445?

15% of residents in ZIP code 83445 live below the poverty line, above the national average.

Does ZIP code 83445 have a large retiree population?

38% of households in ZIP code 83445 receive Social Security income, suggesting a significant retiree or disability population.

What is the population of ZIP code 83445?

ZIP code 83445 has an estimated population of 7,213 residents, with a density of 24 people per square mile.

What is the typical home value in ZIP code 83445?

The median home value in ZIP code 83445 is $210,900.

What timezone is ZIP code 83445 in?

ZIP code 83445 observes the MST timezone.