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zipcodes.pro — ZIP/42040

42040

ZIP 42040 is Farmington, Kentucky, mostly in Graves County; area code 270; Central time.

Type
Standard
Time zone
America/Chicago
County
Graves +1 more
Metro area
Mayfield, KY
Population
692
Coordinates
36.6077, -88.5010
☼ Live from 42040 — Farmington, KY

Weather right now

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Local time: —

Where 42040 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 42040
  • 🔢 Type 42040 into a pocket calculator and turn it upside down: OhOZh — not quite a word, sorry.
  • ➕ As a number, 42,040 = 2 × 2 × 2 × 5 × 1051. Its digits add up to 10, a total 513 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1010010000111000
  • 🏠 Its numerical neighbours: 42039 (Fancy Farm, KY, 22 mi away) and 42041 (Fulton, KY, 21 mi away).
  • 🔄 Backwards, 42040 becomes 04024 — and that is a real ZIP code: East Baldwin, ME, 1,061 miles away.
  • 👥 13 other ZIP codes are made of exactly the same digits (02044, 04024, 04042, 04240, 04402, 04420, …). The farthest-flung twin is 04402 in Bangor, ME, 1,174 miles away.
  • 🧭 Farther south than 66% of all ZIP codes, and farther west than 52%.
  • 🎯590 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 42040 and you would come out at 36.61°S, 91.50°E — 1,382 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 40m of daylight. Shortest: 9h 39m.
  • 📏 At 31.8 square miles of land, 42040 is bigger than 47% of ZIP codes — room for about 24 Central Parks.
🌙 The sky over 42040 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population692This ZIP692
Households309This ZIP309
Housing units386This ZIP386
Median age51.1This ZIP51.1Kentucky39.1US 38.9
Median household income$51,141This ZIP$51,141Kentucky$63,726US $80,734
Median home value$123,500This ZIP$123,500Kentucky$205,600US $332,700
Bachelor's degree or higher14.6%This ZIP14.6%
Mean commute20.5 minThis ZIP20.5 min
Population density21.8 / sq miThis ZIP21.8 / sq mi

Business and tax activity

Business establishments12This ZIP12
Employees39This ZIP39
Annual payroll$1,052,000This ZIP$1,052,000
Tax returns filed490This ZIP490
Total adjusted gross income$29,482,000This ZIP$29,482,000

Land area

Land area31.76 sq miThis ZIP31.76 sq mi
Water area0.22 sq miThis ZIP0.22 sq mi

Counties 42040 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Graves County 79.7%
Calloway County 20.3%

Other place names in 42040

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 42040

ZIPCityDistance
42063 Lynnville, KY 5.0 mi
42079 Sedalia, KY 6.2 mi
42054 Kirksey, KY 8.8 mi
42066 Mayfield, KY 11.6 mi
42049 Hazel, KY 11.8 mi
42071 Murray, KY 12.3 mi
38226 Dukedom, TN 12.6 mi
38251 Puryear, TN 13.0 mi
42020 Almo, KY 13.1 mi
38241 Palmersville, TN 13.4 mi

Find every ZIP code within 10 miles of 42040 →

Questions about this ZIP code

Where is ZIP code 42040?

42040 is in Farmington, Kentucky, in Graves County, part of the Mayfield, KY micropolitan area. Its published point location is 36.6077, -88.5010.

What county is 42040 in?

42040 spans 2 counties: Graves County and Calloway County. Most of it falls in Graves County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What area code is 42040?

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

What time zone is 42040 in?

42040 uses America/Chicago.

How many people live in 42040?

About 692 people live in ZIP code 42040, in 309 households, at 21.8 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 42040?

$51,141 a year, against $63,726 across Kentucky.

What ZIP codes are near 42040?

The closest are 42063 (5 mi), 42079 (6.2 mi), 42054 (8.8 mi), 42066 (11.6 mi) and 42049 (11.8 mi).

Is 42040 a PO Box ZIP code?

42040 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “42040 ZIP Code — Farmington, Kentucky (Graves County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/42040

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/42040.json

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