Billings Montana ZIP Codes

Billings holds 14 ZIP codes, all inside one county and one postal prefix.

Every ZIP code in Billings

The complete list of Billings, Montana ZIP codes with the county each falls in.
ZIP code	County
59101	Yellowstone County
59102	Yellowstone County
59103	Yellowstone County
59104	Yellowstone County
59105	Yellowstone County
59106	Yellowstone County
59107	Yellowstone County
59108	Yellowstone County
59111	Yellowstone County
59112	Yellowstone County
59114	Yellowstone County
59115	Yellowstone County
59116	Yellowstone County
59117	Yellowstone 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Billings codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Billings. 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 Billings ZIP code begins 591. Those first three digits identify the sectional center facility that processes mail for this part of Montana. No other Montana community draws on the 591xx range — it belongs entirely to Billings.

Every Montana ZIP prefix and the region it covers →

Area codes covering Billings

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 Billings occupies.

406 Area code 406

Billings Montana area codes in full →

Where Billings's ZIP codes sit

Each point is one Billings ZIP code, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.

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

Cities near Billings

The closest places to Billings with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Laurel Montana ZIP codes	13 mi	1 ZIP code
Broadview Montana ZIP codes	27 mi	1 ZIP code
Joliet Montana ZIP codes	29 mi	1 ZIP code
Fromberg Montana ZIP codes	32 mi	1 ZIP code
Columbus Montana ZIP codes	35 mi	1 ZIP code
Lavina Montana ZIP codes	40 mi	1 ZIP code
Roundup Montana ZIP codes	46 mi	2 ZIP codes
Hardin Montana ZIP codes	46 mi	1 ZIP code

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