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Where 84640 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 84640 into a pocket calculator and turn it upside down: OhghB — not quite a word, sorry.
- ➕ As a number, 84,640 = 2 × 2 × 2 × 2 × 2 × 5 × 23 × 23. Its digits add up to 22, a total 2,607 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10100101010100000 - 🏠 Its numerical neighbours: 84639 (Levan, UT, 26 mi away) and 84642 (Manti, UT, 47 mi away).
- 🔄 Backwards, 84640 becomes 04648 — and that is a real ZIP code: Jonesboro, ME, 2,295 miles away.
- 👥 39 other ZIP codes are made of exactly the same digits (04468, 04648, 04684, 04864, 06484, 08644, …). The farthest-flung twin is 04648 in Jonesboro, ME, 2,295 miles away.
- 🧭 Farther north than 52% of all ZIP codes, and farther west than 88%.
- 🎯735 miles west of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 84640 and you would come out at 39.46°S, 67.61°E — 695 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 14h 57m of daylight. Shortest: 9h 23m.
- 📏 At 73.5 square miles of land, 84640 is bigger than 70% of ZIP codes — room for about 56 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 124This ZIP124 |
|---|---|
| Households | 43This ZIP43 |
| Housing units | 56This ZIP56 |
| Median age | 30.2This ZIP30.2Utah32.0US 38.9 |
| Median household income | $54,688This ZIP$54,688Utah$95,166US $80,734 |
| Median home value | $275,000This ZIP$275,000Utah$489,400US $332,700 |
| Bachelor's degree or higher | 17.6%This ZIP17.6% |
| Mean commute | 33.6 minThis ZIP33.6 min |
| Population density | 1.7 / sq miThis ZIP1.7 / sq mi |
Land area
| Land area | 73.54 sq miThis ZIP73.54 sq mi |
|---|---|
| Water area | 3.40 sq miThis ZIP3.40 sq mi |
Other place names in 84640
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 84640
| ZIP | City | Distance |
|---|---|---|
84638 | Leamington, UT | 7.6 mi |
84649 | Oak City, UT | 8.8 mi |
84624 | Delta, UT | 12.2 mi |
84635 | Hinckley, UT | 18.3 mi |
84656 | Scipio, UT | 21.9 mi |
84636 | Holden, UT | 22.6 mi |
84639 | Levan, UT | 26.4 mi |
84630 | Fayette, UT | 31.6 mi |
84648 | Nephi, UT | 31.8 mi |
84631 | Fillmore, UT | 32.3 mi |
Find every ZIP code within 10 miles of 84640 →
Questions about this ZIP code
Where is ZIP code 84640?
84640 is in Lynndyl, Utah, in Millard County. Its published point location is 39.4648, -112.3922.
What county is 84640 in?
84640 lies in Millard County.
What area code is 84640?
Lynndyl uses area code 435, from NANPA's telephone records.
What time zone is 84640 in?
84640 uses America/Denver.
How many people live in 84640?
About 124 people live in ZIP code 84640, in 43 households, at 1.7 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 84640?
$54,688 a year, against $95,166 across Utah.
What ZIP codes are near 84640?
The closest are 84638 (7.6 mi), 84649 (8.8 mi), 84624 (12.2 mi), 84635 (18.3 mi) and 84656 (21.9 mi).
Is 84640 a PO Box ZIP code?
84640 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “84640 ZIP Code — Lynndyl, Utah (Millard County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/84640
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/84640.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.