US ZIP Code
59231

Saint Marie, MT

Valley County  ·  Montana

● Active
👥 319 Population ↓ 32% since 2019
💰 $38,125 Median HH Income
▼ 50% below avg ↑ 13% since 2019
🎂 39.3 Median Age ↓ 15% since 2019
🎓 31.5% College Grads
▼ 19% below avg
📊 17.4% Unemployment
▲ 256% above avg ↑ 129% since 2019
ZIP Code Details
ZIP Code59231
CitySaint Marie
StateMontana (MT)
CountyValley County
Area Code406
Elevation2,703 ft
Latitude48.403916
Longitude-106.544215
TimezoneDenver (DST)
FIPS30105
ZIP TypePO Box
StatusActive
People & Population (ACS 2023)
♂ Male 29.2% (93) Female 70.9% (226) ♀

Race & Ethnicity

White: 55.8%Other: 40.1%Race
White55.8%
Other40.1%

Age Breakdown

5–17
3%
18–24
8%
25–44
51%
45–64
3%
65+
6%

Key Indicators

Median Age39.3 yrs ↓ 15% since 2019
Avg Household Size2.66
Below Poverty27.9% ▲ 179% above avg
College Grads31.5% ▼ 19% below avg
Unemployment17.4% ▲ 256% above avg
HS Graduate95 (39.9%)
Some College55 (23.1%)
Associates13 (5.5%)
Bachelors13 (5.5%)
Graduate Degree62 (26.1%)

Education

HS Grad: 39.9%Some College: 23.1%Associates: 5.5%Bachelors: 5.5%Graduate: 26.1%Edu
HS Grad39.9%
Some College23.1%
Associates5.5%
Bachelors5.5%
Graduate26.1%
Housing & Income

Housing Tenure

Owner: 91.7%Renter: 8.3%Tenure
Owner91.7%
Renter8.3%

Home Value Distribution

Under $50k
63%
$50k–100k
37%

Financials

Median HH Income$38,125 ▼ 50% below avg ↑ 13% since 2019
Total Units774
Vacant Units654
Avg HH Size2.66

Income Distribution

Under $25k
34%
$25k–50k
37%
$50k–75k
17%
$75k–100k
13%
Employment & Commute

How People Get to Work

Drove Alone
100%

Commute Time

Under 15 min
73%
15–30 min
20%
Over 45 min
7%
Housing Stock

Year Built

1940s–1950s
48%
1960s–1970s
2%
2000+
50%

Summary

Total Units774
Vacant654
Owner Occupied91.7%
Renter Occupied8.3%
Avg HH Size2.66
Frequently Asked Questions
ZIP code 59231 is in Saint Marie, MT, in Valley County.
ZIP code 59231 is located in Montana (MT).
ZIP code 59231 is in Valley County, MT.
ZIP 59231 observes the Denver timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 59231 is 319 people (ACS 2023).
The median household income in ZIP code 59231 is $38,125 (ACS 2023).
Home value data not available.
About ZIP Code 59231

ZIP code 59231 is located in Saint Marie, Montana, within Valley County. With a population of 319, this is a sparsely populated ZIP code with a middle-aged community — the median age is 39.3 years. Economically, 59231 is a lower-income ZIP code: the median household income of $38,125 is well below the national average.

The population of 59231 is majority White (55.80%). Residents are moderately educated — 31.5% hold a bachelor's degree or higher, which is below the national average. Poverty affects a significant share of residents at 27.9%. Household income has grown by 13% since 2019.

The unemployment rate in 59231 stands at 17.4%, which is more than double the national average. As in most parts of the country, driving alone is the dominant commute mode at 93%.

Overall, ZIP code 59231 in Saint Marie, MT is characterized as lower-income, moderately educated, a middle-aged community, and predominantly owner-occupied.