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zipcodes.pro — ZIP/40031

40031

ZIP 40031 is in La Grange, Kentucky, mostly in Oldham County; area code 502; Eastern time. La Grange has 2 ZIP codes; the other is 40032.

Type
Standard
Time zone
America/New_York
County
Oldham +1 more
Population
26,259
Coordinates
38.4294, -85.4008
☼ Live from 40031 — La Grange, KY

Weather right now

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Local time: —

Where 40031 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 40031
  • 🔢 Type 40031 into a pocket calculator and turn it upside down: IEOOh — not quite a word, sorry.
  • ➕ 40031 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 8, a total 251 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1001110001011111
  • 🏠 Its numerical neighbours: 40027 (Harrods Creek, KY, 14 mi away) and 40032 (La Grange, KY, 4 mi away).
  • 🔄 Backwards, 40031 becomes 13004, which is not a ZIP code at all.
  • 👥 27 other ZIP codes are made of exactly the same digits (01034, 01340, 01430, 03041, 03104, 04013, …). The farthest-flung twin is 34010 in APO AA, a military post office, 1,686 miles away.
  • 🧭 Farther south than 55% of all ZIP codes, and farther east than 56%.
  • 🎯712 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 40031 and you would come out at 38.43°S, 94.60°E — 1,278 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 51m of daylight. Shortest: 9h 29m.
  • 📏 At 66.9 square miles of land, 40031 is bigger than 67% of ZIP codes — room for about 51 Central Parks.
🌙 The sky over 40031 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population26,259This ZIP26,259
Households8,232This ZIP8,232
Housing units8,617This ZIP8,617
Median age39.4This ZIP39.4Kentucky39.1US 38.9
Median household income$98,513This ZIP$98,513Kentucky$63,726US $80,734
Median home value$341,000This ZIP$341,000Kentucky$205,600US $332,700
Median gross rent$1,092This ZIP$1,092Kentucky$967US $1,413
Bachelor's degree or higher34.7%This ZIP34.7%
Mean commute25.2 minThis ZIP25.2 min
Population density392.6 / sq miThis ZIP392.6 / sq mi

Business and tax activity

Business establishments486This ZIP486
Employees7,139This ZIP7,139
Annual payroll$427,647,000This ZIP$427,647,000
Tax returns filed10,360This ZIP10,360
Total adjusted gross income$925,051,000This ZIP$925,051,000

Land area

Land area66.89 sq miThis ZIP66.89 sq mi
Water area0.87 sq miThis ZIP0.87 sq mi

Counties 40031 spans

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

CountyShare of this ZIP
Oldham County 93.5%
Henry County 6.5%

Other place names in 40031

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

ZIP codes near 40031

ZIPCityDistance
40032 La Grange, KY 3.7 mi
40010 Buckner, KY 5.1 mi
40077 Westport, KY 5.1 mi
40055 Pendleton, KY 6.1 mi
40026 Goshen, KY 6.3 mi
40014 Crestwood, KY 6.4 mi
40068 Smithfield, KY 6.8 mi
47104 Bethlehem, IN 8.8 mi
40070 Sulphur, KY 9.4 mi
47162 New Washington, IN 9.6 mi

Find every ZIP code within 10 miles of 40031 →

Questions about this ZIP code

Where is ZIP code 40031?

40031 is in La Grange, Kentucky, in Oldham County, part of the Louisville/Jefferson County, KY-IN metropolitan area. Its published point location is 38.4294, -85.4008.

What county is 40031 in?

40031 spans 2 counties: Oldham County and Henry County. Most of it falls in Oldham 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 40031?

La Grange uses area code 502, from NANPA's telephone records.

What time zone is 40031 in?

40031 uses America/New_York.

How many people live in 40031?

About 26,259 people live in ZIP code 40031, in 8,232 households, at 392.6 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 40031?

$98,513 a year, against $63,726 across Kentucky.

What ZIP codes are near 40031?

The closest are 40032 (3.7 mi), 40010 (5.1 mi), 40077 (5.1 mi), 40055 (6.1 mi) and 40026 (6.3 mi).

Is 40031 a PO Box ZIP code?

40031 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “40031 ZIP Code — La Grange, Kentucky (Oldham County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/40031

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/40031.json

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