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Where 59931 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 59931 into a pocket calculator and turn it upside down: IEGGS — not quite a word, sorry.
- ➕ As a number, 59,931 = 3 × 3 × 6659. Its digits add up to 27, a total 1,806 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1110101000011011 - 🏠 Its numerical neighbours: 59930 (Rexford, MT, 77 mi away) and 59932 (Somers, MT, 9 mi away).
- 🔄 Backwards, 59931 becomes 13995, which is not a ZIP code at all.
- 👥 24 other ZIP codes are made of exactly the same digits (13599, 19395, 19539, 19953, 31599, 31995, …). The farthest-flung twin is 31599 in Jesup, GA, 2,034 miles away.
- 🧭 Farther north than 97% of all ZIP codes, and farther west than 88%.
- 🎯957 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 59931 and you would come out at 47.92°S, 65.75°E — 227 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 16h 02m of daylight. Shortest: 8h 23m.
- 📏 At 28.3 square miles of land, 59931 is bigger than 44% of ZIP codes — room for about 22 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 335This ZIP335 |
|---|---|
| Households | 133This ZIP133 |
| Housing units | 323This ZIP323 |
| Median age | 50.5This ZIP50.5Montana40.4US 38.9 |
| Median household income | $112,083This ZIP$112,083Montana$72,509US $80,734 |
| Median home value | $742,600This ZIP$742,600Montana$375,800US $332,700 |
| Bachelor's degree or higher | 44.9%This ZIP44.9% |
| Mean commute | 41.3 minThis ZIP41.3 min |
| Population density | 11.8 / sq miThis ZIP11.8 / sq mi |
Business and tax activity
| Business establishments | 9This ZIP9 |
|---|---|
| Employees | 23This ZIP23 |
| Annual payroll | $1,203,000This ZIP$1,203,000 |
| Tax returns filed | 150This ZIP150 |
| Total adjusted gross income | $25,347,000This ZIP$25,347,000 |
Land area
| Land area | 28.33 sq miThis ZIP28.33 sq mi |
|---|---|
| Water area | 0.51 sq miThis ZIP0.51 sq mi |
Other place names in 59931
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 59931
| ZIP | City | Distance |
|---|---|---|
59914 | Dayton, MT | 3.9 mi |
59922 | Lakeside, MT | 5.8 mi |
59929 | Proctor, MT | 7.0 mi |
59910 | Big Arm, MT | 7.1 mi |
59932 | Somers, MT | 9.0 mi |
59915 | Elmo, MT | 10.1 mi |
59860 | Polson, MT | 14.6 mi |
59920 | Kila, MT | 17.3 mi |
59911 | Bigfork, MT | 17.6 mi |
59845 | Hot Springs, MT | 21.2 mi |
Find every ZIP code within 10 miles of 59931 →
Questions about this ZIP code
Where is ZIP code 59931?
59931 is in Rollins, Montana, in Lake County. Its published point location is 47.9221, -114.2546.
What county is 59931 in?
59931 lies in Lake County.
What area code is 59931?
Rollins uses area code 406, from NANPA's telephone records.
What time zone is 59931 in?
59931 uses America/Denver.
How many people live in 59931?
About 335 people live in ZIP code 59931, in 133 households, at 11.8 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 59931?
$112,083 a year, against $72,509 across Montana.
What ZIP codes are near 59931?
The closest are 59914 (3.9 mi), 59922 (5.8 mi), 59929 (7 mi), 59910 (7.1 mi) and 59932 (9 mi).
Is 59931 a PO Box ZIP code?
59931 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “59931 ZIP Code — Rollins, Montana (Lake County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/59931
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/59931.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.