Knoxville ZIP codes: US ZIP code list for Knoxville, Tennessee (TN)
Quick answer
Knoxville, Tennessee has 12 US ZIP codes, running 37902 to 37931 inside Knox County. Each carries the same 9.25% combined sales tax rate. ZIP boundaries are postal delivery routes, not tax boundaries — a code that crosses a city or district line can hold more than one rate, so destination-based sellers should validate by full street address.
- ZIP codes
- 12Median covered metro: 12
- Number span
- 3037902 to 37931
- Sorting prefixes
- 379USPS sectional centers
- Sales tax
- 9.25%Same in every listed code
Knoxville ZIP code footprint
How Knoxville's ZIP footprint compares with national norms.
12 ZIP codes are listed for Knoxville, covering a population of 192,648. They span 30 numbers, 37902 through 37931. The median covered metro on this site lists 12 codes; Knoxville ranks 2 of 94 by count. Large metros carry more codes because USPS splits a delivery area once carrier volume outgrows one route cluster, not because the city is geographically bigger.
All 12 codes share the 379 prefix. That first trio is the sectional center facility — the USPS plant that sorts mail for the region — so every piece addressed to Knoxville passes through one facility. The range runs 37902 to 37931.
ZIP boundaries are carrier routes, not city limits. USPS redraws them when delivery volume shifts; Tennessee redraws tax and municipal lines on a different schedule entirely. A Knoxville mailing address does not prove an address sits inside Knoxville city limits, and a single code can straddle the boundary.
ZIP codes in Knoxville
All within Knox County, Tennessee.
- 379029.25%
- 379099.25%
- 379129.25%
- 379149.25%
- 379169.25%
- 379179.25%
- 379189.25%
- 379199.25%
- 379209.25%
- 379219.25%
- 379239.25%
- 379319.25%
Why ZIP-based rate lookup is unreliable
USPS redraws ZIP codes when carrier routes change. Tax jurisdictions move with annexations, county lines and voter-approved districts. The two never line up. In Tennessee, local jurisdictions set their own increments, so remote sellers should validate the full delivery address against the Tennessee Department of Revenue lookup at the time of sale.
Frequently asked questions
Common questions about this area.
- How many ZIP codes does Knoxville have?
- 12. They run from 37902 to 37931 across 1 sectional center prefix (379), spanning 30 numbers.
- What is the first ZIP code in Knoxville, TN?
- 37902 is the lowest-numbered code serving Knoxville. Numbering runs roughly northeast to west nationally, so Knoxville's 379 prefix reflects its position in the Tennessee sorting network, not its size.
- Do all Knoxville ZIP codes have the same sales tax rate?
- Inside Knoxville city limits, yes — 9.25% applies. A code that extends past the city line can carry a different rate on part of its territory. Validate by street address, not ZIP, when the sale is destination-based. Confirm current rates with your state revenue agency before filing.
Knoxville sales tax breakdown and calculator
More Knoxville data
Other Knoxville datasets on this site.
- Knoxville population and income
- Knoxville sales tax rate
- Knoxville property tax
- Knoxville cost of living
- Knoxville home values and rent
- Knoxville crime rates
- Knoxville public schools
- Knoxville weather normals
- Knoxville commute times
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