East Helena Montana ZIP Codes
East Helena holds a single ZIP code.
Every ZIP code in East Helena
| ZIP code | County |
|---|---|
| 59635 | Lewis and Clark County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the East Helena codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for East Helena. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every East Helena ZIP code begins 596. Those first three digits identify the sectional center facility that processes mail for this part of Montana. Statewide that range covers 24 ZIP codes, so East Helena accounts for 4% of it.
Every Montana ZIP prefix and the region it covers →
Area codes covering East Helena
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground East Helena occupies.
East Helena Montana area codes in full →
Where East Helena's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near East Helena
| City | Distance | ZIP codes |
|---|---|---|
| Helena Montana ZIP codes | 4.9 mi | 8 ZIP codes |
| Boulder Montana ZIP codes | 26 mi | 1 ZIP code |
| Townsend Montana ZIP codes | 27 mi | 1 ZIP code |
| Deer Lodge Montana ZIP codes | 41 mi | 1 ZIP code |
| White Sulphur Springs Montana ZIP codes | 48 mi | 1 ZIP code |
| Cascade Montana ZIP codes | 49 mi | 1 ZIP code |
| Whitehall Montana ZIP codes | 50 mi | 1 ZIP code |
| Three Forks Montana ZIP codes | 51 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.