Knox
Source:
Tennessee
Knox is a major-metro county in Tennessee with 21 ZIP codes, 432,449 people, and above-median household income among US counties. All data is sourced from the U.S. Census Bureau American Community Survey (ACS) 2023 5-Year Estimates.
National county placement
According to ACS 5-Year Estimates, Knox, TN sits among US counties with an above-median household income, on a major-metro county population base, across a multi-ZIP patchwork.
- Top 39%
- household income vs 3,210 US counties
- 432,449
- combined ZIP population
- 21
- USPS ZIP codes covered
- $72,027
- avg ZIP median income
Income percentile ranks this county's average ZIP median household income against 3,210 US counties with ACS income on at least one ZIP.
Knox lands in the national county income distribution as above-median household income on major-metro county footing (FIPS 47093, 21 ZIPs, combined population 432,449). Sort the ZIP table by population before treating the county mean as uniform.
Above-median income across 21 ZIPs means the county average is a compromise. Sort by population, save the largest urban ZIP and one sparse code, then compare - that pair usually shows whether density or income is doing the work inside Knox.
Save two ZIPs from the table into your shortlist, then open a compare link - that is the return path a static county summary cannot replace. All figures here come from Census ACS 2023 5-Year Estimates and USPS ZCTA files.
21
Total ZIPs
432,449
Total Population
ZIP Codes in Knox
Side-by-side: Compare 37918 vs 37920 →
| ZIP Code | City | Population | Density |
|---|---|---|---|
| 37918 | Knoxville | 42,835 | 472 |
| 37920 | Knoxville | 39,087 | 208 |
| 37922 | Knoxville | 33,180 | 470 |
| 37921 | Knoxville | 28,233 | 712 |
| 37919 | Knoxville | 28,194 | 571 |
| 37923 | Knoxville | 27,457 | 947 |
| 37931 | Knoxville | 26,109 | 352 |
| 37849 | Powell | 25,459 | 249 |
| 37934 | Knoxville | 24,107 | 533 |
| 37917 | Knoxville | 24,072 | 944 |
| 37912 | Knoxville | 20,673 | 737 |
| 37914 | Knoxville | 19,663 | 191 |
| 37938 | Knoxville | 17,085 | 204 |
| 37909 | Knoxville | 15,168 | 837 |
| 37932 | Knoxville | 14,527 | 195 |
| 37721 | Corryton | 12,733 | 100 |
| 37916 | Knoxville | 12,507 | 3,280 |
| 37924 | Knoxville | 11,259 | 158 |
| 37915 | Knoxville | 5,647 | 1,163 |
| 37806 | Mascot | 2,868 | 71 |
| 37902 | Knoxville | 1,586 | 1,315 |
Frequently Asked Questions
What is the population of Knox?
Knox has a total population of 432,449 across 21 ZIP codes, based on U.S. Census Bureau ACS 2023 data.
What ZIP codes are in Knox?
Knox includes 21 ZIP codes: 37918, 37920, 37922, 37921, 37919, 37923, 37931, 37849, 37934, 37917, and more.