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Newcastle CDP, UT

ZIP Code 84756 — Newcastle CDP, UT Demographics & Data

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

Low Snow Area

Map, Quick Facts & Location

Quick Facts

Local time
Population
253
Median Income
N/A
Home Value
$218,800
-37% vs US avg
Median Rent
N/A
Median Age
64.0 yrs
+65% vs US avg
Area Code
Congress
Top Ancestry
EnglishScottishBritish
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Location
Coordinates
37.5924, -113.5667
Elevation
5,320 ft
Land Area
145.6 sq mi
Water Area
0.2 sq mi (0% water)

At a glance

Population
253
Density
N/A
Median income
N/A
Home value
$218,800
-37% vs US avg
Median rent
N/A
Timezone

Overview of ZIP Code 84756

RetirementRetirement-oriented community
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What to know about ZIP 84756

ZIP code 84756 covers Newcastle, UT in Iron County with a population of about 253.

At a glance, the area shows median age of 64.0 versus a U.S. median of about 38.9.

It sits in telephone area code 435; U.S. House district UT-2; the SALT LAKE CITY media market.

Local search focus: Retirement

Newcastle, UT fits a retirement-oriented profile (high share of residents 65+ (41.1%)). Residents and relocators commonly research healthcare access, everyday amenities (dining, personal services), and housing costs rather than tech or campus life.

Income and economy in Newcastle, UT

On socioeconomic markers, US5 shows a poverty rate of 8.7%; unemployment rate near 0.0%; 26.8% of adults with a bachelor’s degree or higher (about 6.9 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Agriculture, Education, and Transportation; about 10.1% of workers reporting work-from-home (about 5.1 points below the U.S. share (15.2%)); a mean commute of about 89.0 minutes (U.S. average near 26.8).

Housing and affordability in ZIP 84756

Median home value is about $218,800 — about 37% below the U.S. median home value ($348,079).

Housing tenure and rents show owner-occupancy near 100.0% (about 34.6 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 84756 in Newcastle, UT, a household would need roughly $60,000 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 $1,406. 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 Newcastle CDP, UT as Relatively Low (composite score 61.4), which is near the middle of the national distribution. The strongest component scores on US5 are wildfire (97.7) and flood (44.6). 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 Newcastle CDP, UT show little to no average snow and around 15.2 inches of annual precipitation.

IRS migration statistics show a net inflow of about 19 for ZIP 84756 (Newcastle CDP, UT) 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 CDC (26.7 miles (42.9 km)) · Southern Utah University (27.8 miles (44.7 km)) · Zion National Park (35.9 miles (57.8 km)) · VA: St. George CBOC (33.2 miles (53.4 km))

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