Plains, MT 59859 ZIP Code Profile

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Plains, MT

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ZIP Code 59859: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Plains, MT 59859

  • ZIP Code Type: STANDARD
  • County: Sanders County
  • Centroid: Latitude 47.482, Longitude -114.883
  • Time Zone: Mountain Time Zone (UTC -7 hours)
  • Observes DST: Yes
  • Businesses Addresses: 144
  • PO Box Addresses: 999
  • Residential Addresses: 678
    • Multi-Family Addresses: 0
    • Single Family Addresses: 678

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

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59859 ZIP Code Map

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Plains, MT 59859 Data & Demographics (As of July 1, 2017)


Total Population 3,462
Daytime Population: Workers 996
Daytime Population: Residents 2,089
Total Daytime Population (TDP) 3,085
Ratio TDP/Total Population1 0.89
Population in Households 3,358
Population in Familes 2,621
Population in Group Qrtrs 104
Population Density2 5
Diversity Index3 21


Median Household Income $33,875
Average Household Income $47,586
Per Capita Income $21,518


Total Housing Units 2,009 (100%)
Owner Occupied HU 1,127 (56.1%)
Renter Occupied HU 405 (20.2%)
Vacant Housing Units 477 (23.7%)
Median Home Value $249,691
Average Home Value $290,461


Total Households 1,532
Average Household Size 2.19
Family Households 934
Average Family Size 3
  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 -0.52% -0.63%
Households -0.46% -0.58%
Families -0.77% -0.81%
Median Household Income   0.86%
Per Capita Income   2.66%

Plains, MT 59859 - Peer Comparisons by Rank and Percentile

The table below compares 59859 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 # 62 83rd
Population Density # 124 66th
Diversity Index # 83 77th
Median Household Income # 344 5th
Per Capita Income # 317 13th

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

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