Twin Falls, ID Profile: Facts, Map & Data


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Twin Falls, Idaho - Basic Facts

The City of Twin Falls is the 8th largest city in Idaho with a population of 47,538 as of July 1, 2016. Twin Falls ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Idaho. See peer rankings below.

The primary coordinate point for Twin Falls is located at latitude 42.5631 and longitude -114.4641 in Twin Falls County. The formal boundaries for the City of Twin Falls (see map below) encompass a land area of 18.32 sq. miles and a water area of 0.06 sq. miles. Twin Falls County is in the Mountain time zone (GMT -7). The elevation is 3,734 feet.

The City of Twin Falls (GNIS ID: 2412120) 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.

Idaho is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of Twin Falls is located within Twin Falls Division of Twin Falls County.

Beneath the boundary map are tables with Twin Falls population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Neighborhood Data

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City of Twin Falls, ID Boundary Map

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Boundary Maps: Twin Falls Division | Twin Falls County | Idaho Counties

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Twin Falls, ID Data & Demographics (As of July 1, 2016)


Total Population 47,538
Population in Households 46,656
Population in Familes 37,041
Population in Group Qrtrs 882
Population Density1 2,595
Diversity Index2 45


Total Households 17,845
Average Household Size 2.61
Family Households 11,670
Average Family Size 3


Total Housing Units 19,274 (100%)
Owner Occupied HU 10,275 (53.3%)
Renter Occupied HU 7,571 (39.3%)
Vacant Housing Units 1,429 ( 7.4%)
Median Home Value $152,946
Average Home Value $180,817


Median Household Income $40,893
Average Household Income $53,080
Per Capita Income $20,157
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 1.12% 1.26%
Households 0.93% 1.15%
Families 0.83% 1.05%
Median Household Income   2.71%
Per Capita Income   1.88%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Twin Falls, ID - Peer Comparisons by Rank and Percentile

The table below compares Twin Falls to the other 227 incorporated cities, towns and CDPs in Idaho by rank and percentile using July 1, 2016 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 # 8 97th
Population Density1 # 16 93rd
Diversity Index2 # 73 68th
Median Household Income # 132 42nd
Per Capita Income # 132 42nd

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

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