Thompson Falls, MT Profile: Facts & Data


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Thompson Falls, Montana - Basic Facts

The City of Thompson Falls had a population of 1,309 as of July 1, 2020. Thompson Falls ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Montana. See peer rankings below.

The primary coordinate point for Thompson Falls is located at latitude 47.5972 and longitude -115.3443 in Sanders County. The formal boundaries for the City of Thompson Falls encompass a land area of 1.73 sq. miles and a water area of 0 sq. miles. Sanders County is in the Mountain time zone (GMT -7). The elevation is 2,556 feet.

The City of Thompson Falls (GNIS ID: 2412062) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Montana is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of Thompson Falls is located within Thompson Falls-West End Division of Sanders County.


Thompson Falls, MT Data & Demographics (As of July 1, 2020)


Total Population 1,309 (100%)
Population in Households 1,296 (99.0%)
Population in Families 970 (74.1%)
Population in Group Quarters1 13 ( 1.0%)
Population Density 821
Diversity Index2 16


Median Household Income $31,105
Average Household Income $46,702
% of Income for Mortgage4 21%
Per Capita Income $22,175
Wealth Index5 42


Total HU (Housing Units) 691 (100%)
Owner Occupied HU 395 (57.2%)
Renter Occupied HU 224 (32.4%)
Vacant Housing Units 72 (10.4%)
Median Home Value $158,000
Average Home Value $198,985
Housing Affordability Index3 122


Total Households 619
Average Household Size 2.09
Family Households 362
Average Family Size 3
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. 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 races 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.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2020 2020-2025
Population 0.14% 0.36%
Households 0.16% 0.35%
Families 0.22% 0.22%
Median Household Income   1.1%
Per Capita Income   2.21%
Owner Occupied HU   0.6%


Thompson Falls, MT - Peer Comparisons by Rank and Percentile

The table below compares Thompson Falls to the other 363 incorporated cities, towns and CDPs in Montana by rank and percentile using July 1, 2020 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 # 77 79th
Population Density # 88 76th
Median Household Income # 348 4th
Housing Affordability Index # 169 47th
Per Capita Income # 306 16th
Diversity Index # 183 50th

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

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