Saint Marie, MT 59231 ZIP Code Profile

Related Place Profiles:
Glasgow, MT | Saint Marie, MT

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ZIP Code 59231: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Saint Marie, MT 59231

Acceptable Alternative
Glasgow, MT 59231

Not Acceptable, USPS
St Marie, MT 59231

  • ZIP Code Type: PO BOX
  • Businesses Addresses: 5
  • Single Family Addresses: 0
  • Multi-Family Addresses: 0
  • County: Valley County
  • Centroid: Latitude 48.403, Longitude -106.544
  • Time Zone: Mountain Time Zone (UTC -7 hours)
  • Observes DST: Yes

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


59231 ZIP Code Map

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Saint Marie, MT 59231 Data & Demographics (As of July 1, 2017)


Total Population 301
Daytime Population: Workers 7
Daytime Population: Residents 159
Total Daytime Population (TDP) 166
Ratio TDP/Total Population1 0.55
Population in Households 301
Population in Familes 237
Population in Group Qrtrs 0
Population Density2 32
Diversity Index3 25


Median Household Income $59,152
Average Household Income $84,038
Per Capita Income $42,158


Total Housing Units 1,155 (100%)
Owner Occupied HU 131 (11.3%)
Renter Occupied HU 20 ( 1.7%)
Vacant Housing Units 1,004 (86.9%)
Median Home Value $89,000
Average Home Value $157,634


Total Households 151
Average Household Size 1.99
Family Households 95
Average Family Size 2
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 1.83% 0.98%
Households 1.77% 0.91%
Families 1.38% 0.83%
Median Household Income   2.68%
Per Capita Income   3.73%

Saint Marie, MT 59231 - Peer Comparisons by Rank and Percentile

The table below compares 59231 to the other 362 ZIP Codes in Montana by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 230 37th
Population Density # 54 85th
Diversity Index # 64 83rd
Median Household Income # 41 89th
Per Capita Income # 16 96th

Additional comparisons and rankings can be made with a VERY EASY TO USE Montana Census Data Comparison Tool.

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