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St. Anthony city, ID

ZIP Code 83445 — St. Anthony city, ID Demographics & Data

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Middle ClassLow Snow Area

Map, Quick Facts & Location

Quick Facts

Local time
Population
7,514
Median Income
$67,759
-10% vs US avg
Home Value
$233,700
-33% vs US avg
Median Rent
$627
-46% vs US avg
Median Age
34.8 yrs
-11% vs US avg
Area Code
Congress
Top Ancestry
EnglishGermanIrish
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Location
Coordinates
43.9793, -111.7674
Elevation
4,910 ft
Land Area
189.3 sq mi
Water Area
2.2 sq mi (1% water)

At a glance

Population
7,514
Density
N/A
Median income
$67,759
-10% vs US avg
Home value
$233,700
-33% vs US avg
Median rent
$627
-46% vs US avg
Timezone

Overview of ZIP Code 83445

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What to know about ZIP 83445

ZIP code 83445 covers St. Anthony, ID in Fremont County with a population of about 7,514.

At a glance, the area shows median age of 34.8 versus a U.S. median of about 38.9.

It sits in telephone area codes 208, 986; U.S. House district ID-2; the IDAHO FALLS - POCATELLO media market.

Income and economy in St. Anthony, ID

Median household income in ZIP 83445 is about $67,759 — about 10% below the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 14.3%; unemployment rate near 4.6%; 17.2% of adults with a bachelor’s degree or higher (about 16.5 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Healthcare, Retail trade, and Construction; about 12.9% of workers reporting work-from-home (about 2.3 points below the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Housing and affordability in ZIP 83445

Median home value is about $233,700 — about 33% below the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $627 (about 46% below the U.S. median rent ($1,163)), and owner-occupancy near 79.0% (about 13.6 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 83445 in St. Anthony, ID, a household would need roughly $64,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $1,501. That is roughly in line with the local median household income ($67,759). Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

Climate risk and migration signals

FEMA’s National Risk Index rates natural-hazard risk for St. Anthony city, ID as Very Low (composite score 38.3), which is relatively lower than many U.S. communities. The strongest component scores on US5 are wildfire (87.1) and flood (41.4). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Climate normals for St. Anthony city, ID show little to no average snow and around 14.8 inches of annual precipitation.

IRS migration statistics show a net inflow of about 494 for ZIP 83445 (St. Anthony city, ID) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.

Nearby (from this ZIP)

Airport IDA (35.5 miles (57.1 km)) · Evans Hairstyling College-Rexburg (10.9 miles (17.6 km)) · Grand Teton National Park (54.0 miles (86.9 km)) · VA: Idaho Falls Outreach Clinic (35.7 miles (57.5 km))

Full lists and map pins are in the Infrastructure section below.