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Where 84021 is
Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.
- 🔢 Type 84021 into a pocket calculator and turn it upside down: IZOhB — not quite a word, sorry.
- ➕ As a number, 84,021 = 3 × 7 × 4001. Its digits add up to 15, a total 1,657 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10100100000110101 - 🏠 Its numerical neighbours: 84020 (Draper, UT, 75 mi away) and 84022 (Dugway, UT, 112 mi away).
- 🔄 Backwards, 84021 becomes 12048, which is not a ZIP code at all.
- 👥 58 other ZIP codes are made of exactly the same digits (01824, 01842, 02148, 02184, 02481, 02814, …). The farthest-flung twin is 04281 in South Paris, ME, 2,050 miles away.
- 🧭 Farther north than 57% of all ZIP codes, and farther west than 86%.
- 🎯633 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 84021 and you would come out at 40.11°S, 69.47°E — 640 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 02m of daylight. Shortest: 9h 19m.
- 📏 At 605.7 square miles of land, 84021 is bigger than 98% of ZIP codes — room for about 460 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 3,069This ZIP3,069 |
|---|---|
| Households | 1,065This ZIP1,065 |
| Housing units | 1,589This ZIP1,589 |
| Median age | 36.8This ZIP36.8Utah32.0US 38.9 |
| Median household income | $73,819This ZIP$73,819Utah$95,166US $80,734 |
| Median home value | $271,500This ZIP$271,500Utah$489,400US $332,700 |
| Median gross rent | $1,064This ZIP$1,064Utah$1,496US $1,413 |
| Bachelor's degree or higher | 14.6%This ZIP14.6% |
| Mean commute | 23.0 minThis ZIP23.0 min |
| Population density | 5.1 / sq miThis ZIP5.1 / sq mi |
Business and tax activity
| Business establishments | 90This ZIP90 |
|---|---|
| Employees | 542This ZIP542 |
| Annual payroll | $22,234,000This ZIP$22,234,000 |
| Tax returns filed | 1,390This ZIP1,390 |
| Total adjusted gross income | $94,514,000This ZIP$94,514,000 |
Land area
| Land area | 605.71 sq miThis ZIP605.71 sq mi |
|---|---|
| Water area | 5.13 sq miThis ZIP5.13 sq mi |
Other place names in 84021
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 84021
| ZIP | City | Distance |
|---|---|---|
84027 | Fruitland, UT | 13.3 mi |
84073 | Talmage, UT | 17.5 mi |
84072 | Tabiona, UT | 18.4 mi |
84051 | Mountain Home, UT | 20.2 mi |
84001 | Altamont, UT | 21.4 mi |
84007 | Bluebell, UT | 23.9 mi |
84542 | Wellington, UT | 25.4 mi |
84002 | Altonah, UT | 25.8 mi |
84052 | Myton, UT | 28.6 mi |
84066 | Roosevelt, UT | 29.6 mi |
Find every ZIP code within 10 miles of 84021 →
Questions about this ZIP code
Where is ZIP code 84021?
84021 is in Duchesne, Utah, in Duchesne County. Its published point location is 40.1082, -110.5338.
What county is 84021 in?
84021 lies in Duchesne County.
What area code is 84021?
Duchesne uses area code 435, from NANPA's telephone records.
What time zone is 84021 in?
84021 uses America/Denver.
How many people live in 84021?
About 3,069 people live in ZIP code 84021, in 1,065 households, at 5.1 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What is the median household income in 84021?
$73,819 a year, against $95,166 across Utah.
What ZIP codes are near 84021?
The closest are 84027 (13.3 mi), 84073 (17.5 mi), 84072 (18.4 mi), 84051 (20.2 mi) and 84001 (21.4 mi).
Is 84021 a PO Box ZIP code?
84021 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “84021 ZIP Code — Duchesne, Utah (Duchesne County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/84021
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/84021.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.