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zipcodes.pro — ZIP/42157

42157

ZIP 42157 is Mount Hermon, Kentucky, in Monroe County; area code 270; Central time.

Type
Standard
Time zone
America/Chicago
County
Monroe
Metro area
none
Population
507
Coordinates
36.7814, -85.8197
☼ Live from 42157 — Mount Hermon, KY

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Local time: —

Where 42157 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.

★ Weird and wonderful facts about 42157
  • 🔢 Type 42157 into a pocket calculator and turn it upside down: LSIZh — not quite a word, sorry.
  • ➕ 42157 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1010010010101101
  • 🏠 Its numerical neighbours: 42156 (Lucas, KY, 14 mi away) and 42159 (Oakland, KY, 28 mi away).
  • 🔄 Backwards, 42157 becomes 75124 — and that is a real ZIP code: Eustace, TX, 654 miles away.
  • 👥 63 other ZIP codes are made of exactly the same digits (12457, 12475, 12547, 12574, 12745, 12754, …). The farthest-flung twin is 57421 in Amherst, SD, 880 miles away.
  • 🧭 Farther south than 65% of all ZIP codes, and farther east than 54%.
  • 🎯722 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 42157 and you would come out at 36.78°S, 94.18°E — 1,278 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 41m of daylight. Shortest: 9h 38m.
  • 📏 At 18.5 square miles of land, 42157 is bigger than 36% of ZIP codes — room for about 14 Central Parks.
🌙 The sky over 42157 today
  • Working out the sun…
🌋 Shake report
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Source: USGS.

People and housing

Population507This ZIP507
Households148This ZIP148
Housing units174This ZIP174
Median age30.2This ZIP30.2Kentucky39.1US 38.9
Median household income$101,250This ZIP$101,250Kentucky$63,726US $80,734
Median home value$175,000This ZIP$175,000Kentucky$205,600US $332,700
Bachelor's degree or higher10.4%This ZIP10.4%
Mean commute26.7 minThis ZIP26.7 min
Population density27.4 / sq miThis ZIP27.4 / sq mi

Business and tax activity

Business establishments4This ZIP4
Employees32This ZIP32
Annual payroll$2,139,000This ZIP$2,139,000
Tax returns filed160This ZIP160
Total adjusted gross income$6,677,000This ZIP$6,677,000

Land area

Land area18.53 sq miThis ZIP18.53 sq mi
Water area0.03 sq miThis ZIP0.03 sq mi

ZIP codes near 42157

ZIPCityDistance
42131 Etoile, KY 6.0 mi
42166 Summer Shade, KY 8.2 mi
42133 Fountain Run, KY 8.5 mi
42140 Gamaliel, KY 8.6 mi
42167 Tompkinsville, KY 9.1 mi
42130 Eighty Eight, KY 10.2 mi
42123 Austin, KY 10.4 mi
42124 Beaumont, KY 10.9 mi
42141 Glasgow, KY 11.9 mi
42156 Lucas, KY 13.8 mi

Find every ZIP code within 10 miles of 42157 →

Questions about this ZIP code

Where is ZIP code 42157?

42157 is in Mount Hermon, Kentucky, in Monroe County. Its published point location is 36.7814, -85.8197.

What county is 42157 in?

42157 lies in Monroe County.

What area code is 42157?

Mount Hermon uses area code 270, from NANPA's telephone records.

What time zone is 42157 in?

42157 uses America/Chicago.

How many people live in 42157?

About 507 people live in ZIP code 42157, in 148 households, at 27.4 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 42157?

$101,250 a year, against $63,726 across Kentucky.

What ZIP codes are near 42157?

The closest are 42131 (6 mi), 42166 (8.2 mi), 42133 (8.5 mi), 42140 (8.6 mi) and 42167 (9.1 mi).

Is 42157 a PO Box ZIP code?

42157 is a standard ZIP code. A normal ZIP code with street delivery.

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zipcodes.pro. “42157 ZIP Code — Mount Hermon, Kentucky (Monroe County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/42157

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