Erwin, TN Profile: Facts, Map & Data


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Erwin, Tennessee - Basic Facts

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The Town of Erwin had a population of 5,972 as of July 1, 2017. Erwin ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Tennessee. See peer rankings below.

The primary coordinate point for Erwin is located at latitude 36.1458 and longitude -82.412 in Unicoi County. The formal boundaries for the Town of Erwin (see map below) encompass a land area of 4.04 sq. miles and a water area of 0 sq. miles. Unicoi County is in the Eastern time zone (GMT -5). The elevation is 1,673 feet.

The Town of Erwin (GNIS ID: 2406459) 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.

The Town of Erwin is located within Commissioner District 2, a minor civil division (MCD) of Unicoi County.

Beneath the boundary map are tables with Erwin population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Alternate Unofficial Names for Erwin: Ervin, Longmire, Unika, Vanderbilt.

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Town of Erwin, TN Boundary Map

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Boundary Maps: Commissioner District 2 | Unicoi County | Tennessee Counties

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Erwin, TN Data & Demographics (As of July 1, 2017)


Total Population 5,972
Daytime Population: Workers 4,129
Daytime Population: Residents 3,781
Total Daytime Population (TDP) 7,910
Ratio TDP/Total Population1 1.32
Population in Households 5,821
Population in Familes 4,614
Population in Group Qrtrs 151
Population Density2 1,480
Diversity Index3 22


Median Household Income $35,607
Average Household Income $46,811
Per Capita Income $20,956


Total Housing Units 2,928 (100%)
Owner Occupied HU 1,712 (58.5%)
Renter Occupied HU 854 (29.2%)
Vacant Housing Units 362 (12.4%)
Median Home Value $120,974
Average Home Value $159,749


Total Households 2,566
Average Household Size 2.27
Family Households 1,615
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 -0.29% -0.52%
Households -0.29% -0.51%
Families -0.27% -0.64%
Median Household Income   2.52%
Per Capita Income   3.22%

Erwin, TN - Peer Comparisons by Rank and Percentile

The table below compares Erwin to the other 427 incorporated cities, towns and CDPs in Tennessee 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 # 97 78th
Population Density # 22 95th
Diversity Index # 176 59th
Median Household Income # 290 32nd
Per Capita Income # 247 42nd

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

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