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County ZIP codes · Montana · FIPS 30057

Madison County, MT ZIP Codes

Madison County, Montana has 18 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 12 of the residential ones lie mainly in Madison County and 6 mainly in a neighboring county; 7 cross the county line. Median household income ranges from $60,571 in 59759 (Whitehall) to $141,716 in 59716 (Big Sky) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Madison County?

59710 · Alder: $51k59716 · Big Sky: $142k59720 · Cameron: $67k59721 · Cardwell: $94k59725 · Dillon: $61k59729 · Ennis: $83k59730 · Gallatin Gateway: $98k59732 · Glen: $73k59735 · Harrison: $74k59740 · McAllister: –59743 · Melrose: –59745 · Norris: $57k59747 · Pony: $80k59749 · Sheridan: $80k59751 · Silver Star: $56k59754 · Twin Bridges: $77k59755 · Virginia City: $96k59759 · Whitehall: $61k597255973059710597205972959754597595974359721597325974959740597355974559716597555974759710 · Alder: $51k59716 · Big Sky: $142k59720 · Cameron: $67k59721 · Cardwell: $94k59725 · Dillon: $61k59729 · Ennis: $83k59730 · Gallatin Gateway: $98k59732 · Glen: $73k59735 · Harrison: $74k59740 · McAllister: –59743 · Melrose: –59745 · Norris: $57k59747 · Pony: $80k59749 · Sheridan: $80k59751 · Silver Star: $56k59754 · Twin Bridges: $77k59755 · Virginia City: $96k59759 · Whitehall: $61k59725597305971059720597295975459759597435972159732597495974059735597455971659710 · Alder: $51k59716 · Big Sky: $142k59720 · Cameron: $67k59721 · Cardwell: $94k59725 · Dillon: $61k59729 · Ennis: $83k59730 · Gallatin Gateway: $98k59732 · Glen: $73k59735 · Harrison: $74k59740 · McAllister: –59743 · Melrose: –59745 · Norris: $57k59747 · Pony: $80k59749 · Sheridan: $80k59751 · Silver Star: $56k59754 · Twin Bridges: $77k59755 · Virginia City: $96k59759 · Whitehall: $61k5972559730597105972059729597545975959743597325974059735
The residential ZIP codes of Madison 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).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $61,335 and $83,365.

They carry 18 postal town names.

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

All 18 residential ZIP codes in Madison County

12 ZIP codes lie mainly in Madison County; 6 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Madison County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
59729 Ennis 3,258 7 $83k $480k 100%
59749 Sheridan 2,029 9 $80k $382k 100%
59716 Big Sky 1,795 28 $142k $1.09M 56%
59754 Twin Bridges 980 3 $77k $429k 100%
59735 Harrison 440 4 $74k $548k 100%
59740 McAllister 428 3 – $674k 100%
59710 Alder 226 0 $51k $491k 100%
59720 Cameron 220 0 $67k $762k 100%
59751 Silver Star 215 8 $56k $365k 100%
59755 Virginia City 170 3 $96k $394k 100%
59747 Pony 122 3 $80k $427k 100%
59745 Norris 98 1 $57k – 100%

Partly in Madison County

Residential ZIP codes mainly in another county that reach at least 1% into Madison County, by their share here
In this county
59732 Glen 195 1 $73k – 42%
59721 Cardwell 423 2 $94k $790k 38%
59759 Whitehall 3,631 8 $61k $354k 32%
59743 Melrose 165 1 – $358k 28%
59730 Gallatin Gateway 2,399 3 $98k $1.01M 6%
59725 Dillon 8,343 4 $61k $311k 4%

Download the 18 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?

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

Share of each ZIP code's land in Madison County and in the neighboring counties
ZIPIn MadisonElsewhere
597254%Beaverhead County 96%
5975932%Jefferson County 61%; Silver Bow County 7%
597306%Gallatin County 94%
5971656%Gallatin County 44%
5972138%Jefferson County 62%
5973242%Beaverhead County 58%
5974328%Beaverhead County 63%; Silver Bow County 9%

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

Which first three digits do Madison 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 Madison County starts with 597.

Three-digit prefixes of Madison 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 Madison County's
PrefixSectional centerHereAll codes
597 Billings, MT (SCF 590) 18 49

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