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 — CITY/MT/HELENA-WEST-SIDE

Helena West Side ZIP codes, Montana

No ZIP code is named for Helena West Side, MT; addresses there use a neighbouring town's name. 3 ZIP codes cover it: 59601, 59602 and 59636. Its area code is 406.

USPS city name
0 ZIP codes
Overlapping the city
3 more
Population
1,417
Area code
406
State
Montana

NANPA lists no telephone rate centre for Helena West Side itself, so these are the area codes of the nearest one, Helena (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Helena West Side in numbers

About 1,417 people live in Helena West Side, in 563 households. The median household income is $66,921 a year, 8% below the Montana median of $72,509 (US: $80,734). The median owner-occupied home is valued at $402,300 (7% above the Montana median). The median age is 34.5; 44.8% of adults 25 and over hold a bachelor's degree or higher (35.2% across Montana); the average commute takes 25 minutes.

Population1,417Helena West Side1,417
Households563Helena West Side563
Median age34.5Helena West Side34.5Montana40.4US 38.9
Median household income$66,921Helena West Side$66,921Montana$72,509US $80,734
Median home value$402,300Helena West Side$402,300Montana$375,800US $332,700
Bachelor's degree or higher44.8%Helena West Side44.8%Montana35.2%US 35.7%
Mean commute24.5 minHelena West Side24.5 minMontana19.1 minUS 26.4 min
Population density94 / sq miHelena West Side94 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Helena West Side CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes covering Helena West Side

These ZIP codes cover part of Helena West Side but are addressed as somewhere else.

ZIP codes overlapping Helena West Side
ZIP City Type Population Median income Median home
59601 Helena , MT Standard 31,728 $72,290 $386,500
59602 Helena , MT Standard 30,754 $92,985 $408,600
59636 Fort Harrison , MT Standard 32 — —

Map of Helena West Side ZIP codes

596015960259636

The ZIP codes of Helena West Side, MT, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Helena West Side

The nearest larger towns are Helena (33,639 people, 4.5 mi), Helena Valley West Central (8,056 people, 5.2 mi) and East Helena (1,702 people, 9.3 mi).

Towns near Helena West Side
TownPopulationDistance
Helena 33,639 4.5 mi
Helena Valley West Central 8,056 5.2 mi
Helena Valley Northwest 5,183 9.6 mi
Montana City 3,092 10.0 mi
Helena Valley Southeast 9,108 10.4 mi
Helena Valley Northeast 4,659 11.4 mi

More nearby: every ZIP code in Lewis and Clark County · Montana ZIP codes

Cite this page

zipcodes.pro. “Helena West Side, MT ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/mt/helena-west-side

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