
Tennessee · FIPS 47139
Polk ZIP codes — Polk County, Tennessee
Quick answer
Polk County is home to 17,702 residents with a median household income of $60,227 and a median home value of $136,400. 84.1% of households own their home and 13.3% of residents live below the poverty line. Looking for a Polk ZIP code? 10 ZIP code areas fall inside Polk County, Tennessee, listed in full below.
- Population
- 17,702Polk County residents
- Median household income
- $60,227Past 12 months, inflation adjusted
- Median home value
- $136,400Owner-occupied units
- Median gross rent
- $668Rent plus utilities, monthly
- Median age
- 46.2 yrsAll residents
- Homeownership rate
- 84.1%Owner-occupied households
Polk County, TN in context
How this area compares with national benchmarks.
Polk County is a mid-size town in Tennessee, with 17,702 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates. The median age here is 46.2 years against 39.1 nationally, a markedly older profile that usually tracks retirees staying put and younger households leaving for work. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.
Households in Polk County earn a median of $60,227 a year, 23.3% below the national figure of $78,538. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 13.3% of residents here, above the 12.4% national rate.
The typical owner-occupied home in Polk County is valued at $136,400, 55% below the national figure, while median gross rent runs $668 a month, 52.5% below the national figure, or roughly $8,016 across a full year. A household on the local median income would put about 13.3% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 2.3×, against roughly 3.9× nationally, so purchase prices are unusually low against local pay, the pattern in places where supply is plentiful and wage growth has been flat. 84.1% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.
No figure on this page is estimated by us; each one comes straight from the published ACS tables for this area. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.
ZIP codes in Polk County
ZIP code tabulation areas whose land area falls mostly in Polk County.
How to read this page
What these estimates cover.
Figures are five-year rolling averages from the American Community Survey, not single-year counts, so they describe conditions across 2019-2023 ACS 5-year rather than a single date. Median home value covers owner-occupied units as valued by their owners, and median gross rent includes utilities the renter pays. Small counties carry wide margins of error; treat single-dollar differences between neighbouring counties as noise.
Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year
Cities and towns in Tennessee
Largest Census places in Tennessee by population.
- Nashville-Davidson metropolitan government (balance) 684,298
- Memphis city 629,063
- Knoxville city 193,721
- Chattanooga city 182,832
- Clarksville city 171,897
- Murfreesboro city 157,547
- Franklin city 85,575
- Johnson City city 71,455
- Jackson city 68,098
- Hendersonville city 62,390
- Bartlett city 56,998
- Kingsport city 55,807
Nearby counties
Other counties in Tennessee.
Frequently asked questions
Common questions about this area.
- What is the population of Polk County?
- Polk County has 17,702 residents on Census ACS 2019-2023 ACS 5-year estimates.
- What is the median household income in Polk County?
- Median household income in Polk County is $60,227 a year, 23.3% below the national figure of $78,538.
- How much does it cost to rent or buy in Polk County?
- Median gross rent is $668 a month and the median home value is $136,400, so rent absorbs about 13.3% of median household income.
- Is Polk County affordable compared with the rest of the US?
- Homes cost about 2.3× the local median income here versus roughly 3.9× nationally, so Polk County is more affordable to buy in than the typical US market, and rent takes 13.3% of median income against the 30% cost-burden line.
- How current is this Polk County data?
- All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.