Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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 — PREFIX/595

ZIP codes starting with 595

ZIP codes
23
States
MT
Largest city
Havre, MT
Population
30,771

The first three digits of a ZIP code identify a sectional center facility — the postal processing plant that sorts mail for the area. It is a mail-routing grouping, not an administrative boundary.

Every ZIP code in 595xx

ZIP codes starting with 595
ZIP City Type Population Median income Median home
59501 Havre , MT Standard 12,243 $51,872 $218,100
59520 Big Sandy , MT Standard 1,261 $62,109 $204,000
59521 Box Elder , MT Standard 3,529 $50,288 $103,700
59522 Chester , MT Standard 1,315 $57,212 $177,100
59523 Chinook , MT Standard 2,356 $73,906 $218,300
59524 Dodson , MT Standard 643 $48,000 $62,100
59525 Gildford , MT Standard 473 $48,438 $94,300
59526 Harlem , MT Standard 2,319 $63,869 $85,200
59527 Hays , MT Standard 1,345 $54,500 $80,800
59528 Hingham , MT Standard 249 $89,375 $170,800
59529 Hogeland , MT Standard 144 $87,841 $325,000
59530 Inverness , MT Standard 141 $61,875 $192,400
59531 Joplin , MT Standard 351 $67,891 $110,000
59532 Kremlin , MT Standard 97 $58,333 —
59535 Lloyd , MT Standard 33 — —
59537 Loring , MT Standard 159 — —
59538 Malta , MT Standard 2,737 $57,097 $191,800
59540 Rudyard , MT Standard 430 $74,250 $131,300
59542 Turner , MT Standard 442 $57,222 $187,500
59544 Whitewater , MT Standard 207 $39,583 $250,000
59545 Whitlash , MT Standard 55 $100,781 $291,700
59546 Zortman , MT Standard 191 $49,107 —
59547 Zurich , MT Standard 51 — $131,300

Cite this page

zipcodes.pro. “ZIP codes starting with 595.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/595

Underlying data is public domain or openly licensed — sources, vintages and licences.