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zipcodes.pro — ZIP/59231

59231

ZIP 59231 is Saint Marie, Montana, in Valley County; area code 406; Mountain time.

Type
Standard
Time zone
America/Denver
County
Valley
Metro area
none
Population
306
Coordinates
48.4039, -106.5442
☼ Live from 59231 — Saint Marie, MT

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Local time: —

Where 59231 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 59231
  • 🔢 Type 59231 into a pocket calculator and turn it upside down: IEZGS — not quite a word, sorry.
  • ➕ As a number, 59,231 = 61 × 971. Its digits add up to 20, a total 2,586 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1110011101011111
  • 🏠 Its numerical neighbours: 59230 (Glasgow, MT, 22 mi away) and 59240 (Glentana, MT, 33 mi away).
  • 🔄 Backwards, 59231 becomes 13295, which is not a ZIP code at all.
  • 👥 49 other ZIP codes are made of exactly the same digits (12935, 12953, 15239, 15329, 15923, 19352, …). The farthest-flung twin is 32951 in Melbourne Beach, FL, 1,981 miles away.
  • 🧭 Farther north than 98% of all ZIP codes, and farther west than 84%.
  • 🎯711 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 59231 and you would come out at 48.40°S, 73.46°E — 161 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 16h 07m of daylight. Shortest: 8h 19m.
  • 📏 At 0.555 square miles of land, 59231 is bigger than 6% of ZIP codes — about 269 football fields.
🌙 The sky over 59231 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population306This ZIP306
Households92This ZIP92
Housing units688This ZIP688
Median age37.9This ZIP37.9Montana40.4US 38.9
Median household income$38,971This ZIP$38,971Montana$72,509US $80,734
Median home value$18,800This ZIP$18,800Montana$375,800US $332,700
Bachelor's degree or higher23.1%This ZIP23.1%
Population density551.4 / sq miThis ZIP551.4 / sq mi

Business and tax activity

Business establishments3This ZIP3
Employees11This ZIP11
Annual payroll$692,000This ZIP$692,000

Land area

Land area0.56 sq miThis ZIP0.56 sq mi
Water area0.00 sq mi

Other place names in 59231

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

ZIP codes near 59231

ZIPCityDistance
59248 Nashua, MT 17.4 mi
59244 Larslan, MT 18.5 mi
59273 Vandalia, MT 19.5 mi
59230 Glasgow, MT 22.2 mi
59241 Hinsdale, MT 23.5 mi
59225 Frazer, MT 28.1 mi
59250 Opheim, MT 30.7 mi
59240 Glentana, MT 33.3 mi
59260 Richland, MT 36.8 mi
59223 Fort Peck, MT 37.3 mi

Find every ZIP code within 10 miles of 59231 →

Questions about this ZIP code

Where is ZIP code 59231?

59231 is in Saint Marie, Montana, in Valley County. Its published point location is 48.4039, -106.5442.

What county is 59231 in?

59231 lies in Valley County.

What area code is 59231?

Saint Marie uses area code 406, from NANPA's telephone records.

What time zone is 59231 in?

59231 uses America/Denver.

How many people live in 59231?

About 306 people live in ZIP code 59231, in 92 households, at 551.4 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 59231?

$38,971 a year, against $72,509 across Montana.

What ZIP codes are near 59231?

The closest are 59248 (17.4 mi), 59244 (18.5 mi), 59273 (19.5 mi), 59230 (22.2 mi) and 59241 (23.5 mi).

Is 59231 a PO Box ZIP code?

59231 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “59231 ZIP Code — Saint Marie, Montana (Valley County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/59231

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