Madison County, MT ZIP codes
There are 12 ZIP codes in Madison County, MT, in 12 towns, from 59710 to 59755. The largest are 59729 (Ennis), 59749 (Sheridan) and 59754 (Twin Bridges).
The county seat is Virginia City.
- ZIP codes
- 12
- Towns
- 12
- County seat
- Virginia City
- County FIPS
30057- State
- Montana
- Population
- 9,223
- Median household income
- $75,250
- Land area
- 3,588 sq mi
Madison County ZIP codes by town
- Virginia City (county seat)
- 59755
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Madison County ZIP codes
The ZIP codes of Madison County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Madison County in numbers
About 9,223 people live in Madison County, in 3,740 households, the 24th most populous of Montana's 56 counties. The median household income is $75,250 a year, 4% above the Montana median of $72,509 (US: $80,734). The median owner-occupied home is valued at $470,100 (25% above the Montana median), and median gross rent is $1,000 a month. The median age is 52.2; 32.6% of adults 25 and over hold a bachelor's degree or higher (35.2% across Montana); the average commute takes 26 minutes.
| Population | 9,223 |
|---|---|
| Households | 3,740 |
| Median age | 52.2 |
| Median household income | $75,250 |
| Median home value | $470,100 |
| Median gross rent | $1,000 |
| Bachelor's degree or higher | 32.6% |
| Mean commute | 25.8 min |
| Population density | 3 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Madison County
| Town | ZIP codes | Population |
|---|---|---|
| Big Sky | 1 | 2,445 |
| Sheridan | 1 | 869 |
| Ennis | 1 | 777 |
| Mc Allister | 1 | 428 |
| Cameron | 1 | 220 |
| Twin Bridges | 1 | 201 |
| Virginia City | 1 | 129 |
| Harrison | 1 | 95 |
| Alder | 1 | 92 |
| Silver Star | 1 | 89 |
| Pony | 1 | 78 |
| Norris | 1 | 17 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Madison County.
Not sure you are in Madison County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Madison County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
59710 | Alder , MT | Standard | 226 | $50,885 | $490,900 |
59716 | Big Sky , MT | Standard | 1,795 | $141,716 | $1,094,900 |
59720 | Cameron , MT | Standard | 220 | $66,538 | $761,700 |
59729 | Ennis , MT | Standard | 3,258 | $83,365 | $480,300 |
59735 | Harrison , MT | Standard | 440 | $74,125 | $548,100 |
59740 | Mc Allister , MT | Standard | 428 | — | $674,100 |
59745 | Norris , MT | Standard | 98 | $56,667 | — |
59747 | Pony , MT | Standard | 122 | $80,250 | $427,300 |
59749 | Sheridan , MT | Standard | 2,029 | $80,238 | $382,400 |
59751 | Silver Star , MT | Standard | 215 | $55,938 | $365,000 |
59754 | Twin Bridges , MT | Standard | 980 | $76,923 | $429,100 |
59755 | Virginia City , MT | Standard | 170 | $96,250 | $394,400 |
Cite this page
zipcodes.pro. “Madison County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/mt/county/madison
Underlying data is public domain or openly licensed — sources, vintages and licences.