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ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/59101

59101

ZIP 59101 is in Billings, Montana, mostly in Yellowstone County; area code 406; Mountain time. Billings has 14 ZIP codes in all.

Type
Standard
Time zone
America/Denver
County
Yellowstone +1 more
Metro area
Billings, MT
Population
42,250
Coordinates
45.6071, -108.3415
☼ Live from 59101 — Billings, MT

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Where 59101 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 59101
  • 🔢 Type 59101 into a pocket calculator and turn it upside down: IOIGS — not quite a word, sorry.
  • ➕ As a number, 59,101 = 7 × 8443. Its digits add up to 16, a total 1,922 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1110011011011101
  • 🏠 Its numerical neighbours: 59089 (Wyola, MT, 61 mi away) and 59102 (Billings, MT, 16 mi away).
  • 🔄 Backwards, 59101 becomes 10195, which is not a ZIP code at all.
  • 👥 28 other ZIP codes are made of exactly the same digits (01519, 01915, 01951, 10159, 10519, 10591, …). The farthest-flung twin is 01915 in Beverly, MA, 1,854 miles away.
  • 🧭 Farther north than 93% of all ZIP codes, and farther west than 85%.
  • 🎯636 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 59101 and you would come out at 45.61°S, 71.66°E — 267 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 42m of daylight. Shortest: 8h 41m.
  • 📏 At 590.8 square miles of land, 59101 is bigger than 98% of ZIP codes — room for about 449 Central Parks.
🌙 The sky over 59101 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population42,250This ZIP42,250
Households17,655This ZIP17,655
Housing units19,153This ZIP19,153
Median age37.0This ZIP37.0Montana40.4US 38.9
Median household income$58,598This ZIP$58,598Montana$72,509US $80,734
Median home value$268,700This ZIP$268,700Montana$375,800US $332,700
Median gross rent$972This ZIP$972Montana$1,081US $1,413
Bachelor's degree or higher23.6%This ZIP23.6%
Mean commute17.1 minThis ZIP17.1 min
Population density71.5 / sq miThis ZIP71.5 / sq mi

Business and tax activity

Business establishments2,010This ZIP2,010
Employees31,666This ZIP31,666
Annual payroll$2,202,129,000This ZIP$2,202,129,000
Tax returns filed19,240This ZIP19,240
Total adjusted gross income$1,243,999,000This ZIP$1,243,999,000

Land area

Land area590.81 sq miThis ZIP590.81 sq mi
Water area2.90 sq miThis ZIP2.90 sq mi

Counties 59101 spans

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

CountyShare of this ZIP
Yellowstone County 97.7%
Big Horn County 2.3%

Other place names in 59101

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

ZIP codes near 59101

ZIPCityDistance
59103 Billings, MT 14.4 mi
59104 Billings, MT 14.4 mi
59108 Billings, MT 14.4 mi
59111 Billings, MT 14.4 mi
59112 Billings, MT 14.4 mi
59114 Billings, MT 14.4 mi
59115 Billings, MT 14.4 mi
59116 Billings, MT 14.4 mi
59117 Billings, MT 14.4 mi
59107 Billings, MT 15.3 mi

Find every ZIP code within 10 miles of 59101 →

Questions about this ZIP code

Where is ZIP code 59101?

59101 is in Billings, Montana, in Yellowstone County, part of the Billings, MT metropolitan area. Its published point location is 45.6071, -108.3415.

What county is 59101 in?

59101 spans 2 counties: Yellowstone County and Big Horn County. Most of it falls in Yellowstone 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 59101?

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

What time zone is 59101 in?

59101 uses America/Denver.

How many people live in 59101?

About 42,250 people live in ZIP code 59101, in 17,655 households, at 71.5 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 59101?

$58,598 a year, against $72,509 across Montana.

What ZIP codes are near 59101?

The closest are 59103 (14.4 mi), 59104 (14.4 mi), 59108 (14.4 mi), 59111 (14.4 mi) and 59112 (14.4 mi).

Is 59101 a PO Box ZIP code?

59101 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “59101 ZIP Code — Billings, Montana (Yellowstone County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/59101

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