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County ZIP codes · Montana · FIPS 30073

Pondera County, MT ZIP Codes

Pondera County, Montana has 6 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 5 of the residential ones lie mainly in Pondera County and 1 mainly in a neighboring county; 4 cross the county line.

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Pondera County?

59416 · Brady: $89k59425 · Conrad: $50k59432 · Dupuyer: $74k59448 · Heart Butte: $32k59456 · Ledger: $41k59486 · Valier: $57k59425594565948659416594325944859416 · Brady: $89k59425 · Conrad: $50k59432 · Dupuyer: $74k59448 · Heart Butte: $32k59456 · Ledger: $41k59486 · Valier: $57k59425594565948659416594325944859416 · Brady: $89k59425 · Conrad: $50k59432 · Dupuyer: $74k59448 · Heart Butte: $32k59456 · Ledger: $41k59486 · Valier: $57k594255945659486594165943259448
The residential ZIP codes of Pondera County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

All 6 residential ZIP codes in Pondera County

5 ZIP codes lie mainly in Pondera County; 1 more reaches into it from a neighboring county and follows the first table.

Residential ZIP codes mainly in Pondera County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
59425 Conrad 3,717 7 $50k $220k 91%
59486 Valier 1,205 2 $57k $183k 100%
59448 Heart Butte 638 8 $32k $51k 99%
59416 Brady 425 1 $89k $163k 56%
59432 Dupuyer 170 1 $74k $250k 73%

Partly in Pondera County

Residential ZIP codes mainly in another county that reach at least 1% into Pondera County, by their share here
In this county
59456 Ledger 392 1 $41k – 10%

Download the 6 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

5 ZIP codes of Pondera County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Pondera County and in the neighboring counties
ZIPIn PonderaElsewhere
5942591%Teton County 9%
5944899%
5941656%Chouteau County 41%; Teton County 2%; Liberty County 1%
5945610%Liberty County 52%; Toole County 39%
5943273%Teton County 27%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Pondera County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Pondera County starts with 594.

Three-digit prefixes of Pondera County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Pondera County's
PrefixSectional centerHereAll codes
594 Great Falls, MT (SCF 594) 6 64

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.