Polk County TN Information


Polk County Subdivisions

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


Total Population 17,944
Daytime Population: Workers 3,835
Daytime Population: Residents 10,855
Total Daytime Population (TDP) 14,690
Ratio TDP/Total Population1 0.82
Population in Households 17,700
Population in Familes 14,897
Population in Group Qrtrs 244
Population Density2 41
Diversity Index3 10


Median Household Income $40,042
Average Household Income $53,142
Per Capita Income $21,452


Total Housing Units 8,822 (100%)
Owner Occupied HU 5,488 (62.2%)
Renter Occupied HU 1,615 (18.3%)
Vacant Housing Units 1,719 (19.5%)
Median Home Value $139,891
Average Home Value $184,785


Total Households 7,103
Average Household Size 2.49
Family Households 5,023
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 0.89% 0.99%
Households 0.91% 1.0%
Families 0.76% 0.89%
Median Household Income   3.6%
Per Capita Income   3.45%


Polk County TN - Peer Comparisons by Rank and Percentile

The table below compares Polk County to the other 95 counties and county equivalents 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 # 73 25th
Population Density # 78 19th
Diversity Index # 85 11th
Median Household Income # 48 51st
Per Capita Income # 52 46th

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