Troy Montana ZIP Codes

Troy holds a single ZIP code.

Every ZIP code in Troy

The complete list of Troy, Montana ZIP codes with the county each falls in.
ZIP code	County
59935	Lincoln 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Troy codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Troy. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Troy ZIP code begins 599. Those first three digits identify the sectional center facility that processes mail for this part of Montana. Statewide that range covers 30 ZIP codes, so Troy accounts for 3% of it.

Every Montana ZIP prefix and the region it covers →

Area codes covering Troy

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 Troy occupies.

406 Area code 406

Troy Montana area codes in full →

Where Troy's ZIP codes sit

Each point is one Troy ZIP code, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Cities near Troy

The closest places to Troy with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Libby Montana ZIP codes	16 mi	1 ZIP code
Rexford Montana ZIP codes	45 mi	1 ZIP code
Eureka Montana ZIP codes	48 mi	1 ZIP code
Thompson Falls Montana ZIP codes	65 mi	1 ZIP code
Whitefish Montana ZIP codes	71 mi	1 ZIP code
Kalispell Montana ZIP codes	74 mi	3 ZIP codes
Columbia Falls Montana ZIP codes	78 mi	1 ZIP code
Hot Springs Montana ZIP codes	82 mi	1 ZIP code

Straight-line distance between place reference points, not driving distance.