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Where 84631 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 84631 into a pocket calculator and turn it upside down: IEghB — not quite a word, sorry.
- ➕ 84631 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 22, a total 2,607 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10100101010010111 - 🏠 Its numerical neighbours: 84630 (Fayette, UT, 37 mi away) and 84632 (Fountain Green, UT, 60 mi away).
- 🔄 Backwards, 84631 becomes 13648 — and that is a real ZIP code: Harrisville, NY, 1,933 miles away.
- 👥 55 other ZIP codes are made of exactly the same digits (13468, 13486, 13648, 13684, 13846, 13864, …). The farthest-flung twin is 13468 in Springfield Center, NY, 1,961 miles away.
- 🧭 Farther south than 50% of all ZIP codes, and farther west than 88%.
- 🎯739 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 84631 and you would come out at 39.00°S, 67.60°E — 727 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 54m of daylight. Shortest: 9h 26m.
- 📏 At 126.5 square miles of land, 84631 is bigger than 83% of ZIP codes — room for about 96 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 3,196This ZIP3,196 |
|---|---|
| Households | 928This ZIP928 |
| Housing units | 1,065This ZIP1,065 |
| Median age | 32.1This ZIP32.1Utah32.0US 38.9 |
| Median household income | $67,115This ZIP$67,115Utah$95,166US $80,734 |
| Median home value | $301,000This ZIP$301,000Utah$489,400US $332,700 |
| Median gross rent | $775This ZIP$775Utah$1,496US $1,413 |
| Bachelor's degree or higher | 25.2%This ZIP25.2% |
| Mean commute | 14.1 minThis ZIP14.1 min |
| Population density | 25.3 / sq miThis ZIP25.3 / sq mi |
Business and tax activity
| Business establishments | 87This ZIP87 |
|---|---|
| Employees | 1,327This ZIP1,327 |
| Annual payroll | $57,390,000This ZIP$57,390,000 |
| Tax returns filed | 1,390This ZIP1,390 |
| Total adjusted gross income | $86,682,000This ZIP$86,682,000 |
Land area
| Land area | 126.48 sq miThis ZIP126.48 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Other place names in 84631
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 84631
| ZIP | City | Distance |
|---|---|---|
84636 | Holden, UT | 10.3 mi |
84644 | Meadow, UT | 10.9 mi |
84637 | Kanosh, UT | 19.7 mi |
84656 | Scipio, UT | 22.5 mi |
84649 | Oak City, UT | 24.4 mi |
84620 | Aurora, UT | 25.9 mi |
84724 | Elsinore, UT | 26.0 mi |
84739 | Joseph, UT | 26.3 mi |
84711 | Annabella, UT | 26.5 mi |
84730 | Glenwood, UT | 27.2 mi |
Find every ZIP code within 10 miles of 84631 →
Questions about this ZIP code
Where is ZIP code 84631?
84631 is in Fillmore, Utah, in Millard County. Its published point location is 38.9977, -112.3968.
What county is 84631 in?
84631 lies in Millard County.
What area code is 84631?
Fillmore uses area code 435, from NANPA's telephone records.
What time zone is 84631 in?
84631 uses America/Denver.
How many people live in 84631?
About 3,196 people live in ZIP code 84631, in 928 households, at 25.3 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 84631?
$67,115 a year, against $95,166 across Utah.
What ZIP codes are near 84631?
The closest are 84636 (10.3 mi), 84644 (10.9 mi), 84637 (19.7 mi), 84656 (22.5 mi) and 84649 (24.4 mi).
Is 84631 a PO Box ZIP code?
84631 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “84631 ZIP Code — Fillmore, Utah (Millard County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/84631
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/84631.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.