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Iron County · Utah

ZIP code 84721

Population, income, housing costs and the sales tax rate charged on purchases inside ZIP 84721 — Census 2019-2023 ACS 5-year, no modelled estimates.
Population
29,635

ZCTA residents

Median income
$73,342

Household, past 12 months

Median home
$345,000

Owner-occupied value

Sales tax
4.85%

Utah state rate

Quick answer

ZIP 84721 sits in Iron County, Utah and is home to 29,635 people. Median household income is $73,342, the median home is worth $345,000 and median gross rent is $1,076. 67.7% of households own their home, and purchases are taxed at 4.85% (Utah state rate).

County
Iron County

FIPS 49021

State
Utah (UT)

299 ZIPs covered

Area codes
Not published

No NANPA match for this ZIP

Metro area
Outside covered metros

Rate jurisdiction used for tax

The numbers for 84721

American Community Survey 2019-2023 ACS 5-year estimates for this ZCTA.

Population
29,635ZIP 84721 residents
Median household income
$73,342Past 12 months, inflation adjusted
Median home value
$345,000Owner-occupied units
Median gross rent
$1,076Rent plus utilities, monthly
Median age
28.3 yrsAll residents
Homeownership rate
67.7%Owner-occupied households

ZIP 84721 in context

How this area compares with national benchmarks.

ZIP 84721 is a small city in Iron County, Utah, with 29,635 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #50 of 299 ranked by population — larger than 83% of them. The median age here is 28.3 years against 39.1 nationally, a distinctly younger profile, typical of places with students, military posts or a fast-growing family population. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in ZIP 84721 earn a median of $73,342 a year, 6.6% below the national figure of $78,538. Median household income counts every pre-tax dollar arriving at an address — wages, self-employment, Social Security, pensions, interest and public assistance — for everyone living there, so multi-earner households pull the figure up even where individual pay is modest. Poverty reaches 13.5% of residents here, above the 12.4% national rate.

The typical owner-occupied home in ZIP 84721 is valued at $345,000, 13.7% above the national figure, while median gross rent runs $1,076 a month, 23.5% below the national figure, or roughly $12,912 across a full year. A household on the local median income would put about 17.6% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 4.7×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 67.7% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

A median age of 28.3 means a large student or early-career population; income medians in places like this understate household resources, since many residents are supported from outside the address.

All values below were released by the Census for this exact geography, with no gap-filling on our side. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.

Reading ZIP 84721 in context

How 84721 sits inside Iron County and Utah.

ZIP 84721 is tabulated inside Iron County, Utah, one of 10 ZIP areas the Census publishes for that county and 299 across Utah. This is a mid-sized ZIP that covers a large share of its county's addresses. County assignment on this page follows the largest share of the ZIP's land area, which matters where a delivery route crosses a county line: mail addressed to 84721 can be handled by a post office in a neighbouring county even though the tabulation area is filed here.

Against its own county, 84721 reports a median household income of $73,342, 14% above the $64,193 county median, and 7% below the $78,550 typical UT ZIP. Owner-occupied homes are valued at a median of $345,000, 12% above the county figure and 5% below the statewide ZIP median. Rent is reported gross — the contract amount plus tenant-paid utilities — at $1,076 a month, which is why it reads higher than the advertised rent on a listing for the same unit.

Utah charges 4.85% statewide, and local governments overlapping 84721 may add county, city or special-district levies on top. We publish the state floor for this ZIP rather than guessing a combined figure, because ZIP boundaries and taxing-district boundaries were drawn for different purposes and do not line up.

Everything above comes from the Census Bureau American Community Survey 2019-2023 ACS 5-year estimates for this ZIP Code Tabulation Area, with sales tax rates traced to the state revenue agency. Five-year estimates pool sixty months of responses, so they are stable enough to compare 84721 with its neighbours but always trail the current year, and any value the Census suppressed for sample size is shown as unpublished rather than filled in with a model.

Sales tax in 84721

What a purchase inside this ZIP costs at checkout.

Rate applied
4.85%State base rate only
Tax on $100
$5Rounded to the dollar
Tax on $1,000
$49Before any exemptions

Utah levies 4.85% statewide, and counties, cities and special districts inside this ZIP can add their own local rate on top. Check the county page for the local component before you quote a price.

Affordability in this ZIP

Derived from the Census medians above — indicative, not an offer.

Rent burden
18%Median rent ÷ median income
Price-to-income
4.7×Home value ÷ household income
Est. mortgage
$1,790/mo20% down, 30-yr at 6.75%
Poverty rate
13.5%Residents below poverty line

A rent burden above 30% is the federal threshold for cost-burdened households, and a price-to-income multiple above 4× is generally considered a stretched housing market. The mortgage figure is principal and interest only — taxes, insurance and HOA dues are extra.

How 84721 compares

ZIP 84721 against the median ZIP in Iron County and across Utah.

MeasureZIP 84721County medianState medianvs state
Median household income$73,342$64,193$78,550-7%
Median home value$345,000$309,100$363,100-5%
Median gross rent$1,076$962$1,173-8%
Population29,6357201,463+1926%

Medians are computed across the 10 ZIP areas in Iron County and the 299 ZIP areas in Utah.

Statewide rank

Where this ZIP places among all 299 Utah ZIP areas.

Income

richer than 40% of 265 state ZIPs

#160
Home value

above 44% of 274 state ZIPs

#153
Population

larger than 83% of 299 state ZIPs

#50

Comparable ZIP codes

Utah ZIP areas with almost the same household income.

ZIPCountyIncomeHome valueRent
84107Salt Lake County$73,469$426,000$1,387
84047Salt Lake County$73,120$404,200$1,482
84337Box Elder County$73,854$357,300$1,116
84518Emery County$74,286$142,100$744
84631Millard County$74,464$260,400$795
84604Utah County$74,522$520,500$1,128

Nearby ZIP codes

Other ZIP codes filed under Iron County.

Adjacent ZIP Codes

Other ZIP codes in Iron County, Utah.

ZIP 84721 questions

Common questions about this ZIP code.

Where is ZIP code 84721?
ZIP 84721 lies mostly in Iron County, Utah. County assignment follows the largest share of land area, so a ZIP straddling a county line is filed under its dominant county.
What sales tax do I pay in 84721?
Utah charges 4.85% statewide, plus any county, city or district rate that applies locally.
Is 84721 expensive to live in?
Median rent runs $1,076 a month, about 18% of median household income, and the median home is worth $345,000 — -5% against the typical Utah ZIP.
Is a ZCTA the same as a postal ZIP code?
Not exactly. The Census builds ZIP Code Tabulation Areas from the ZIP codes of addresses inside each census block, so a ZCTA can differ slightly from the USPS delivery route of the same number, and PO-box-only ZIPs have no ZCTA at all.

Related pages for this area.

Sources & transparency

Every figure on this page is a published estimate for ZIP Code Tabulation Area 84721, except the affordability ratios and mortgage estimate, which we derive from those medians and label as estimates.

Last reviewed December 2024. Figures are published for reference and can change; verify with the source agency before filing or contracting. How we build and check this data.