Louisville ZIP codes: US ZIP code list for Louisville, Kentucky (KY)
Quick answer
Louisville, Kentucky has 12 US ZIP codes, running 40202 to 40220 inside Jefferson County. Each carries the same 6% 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
- 1940202 to 40220
- Sorting prefixes
- 402USPS sectional centers
- Sales tax
- 6%Same in every listed code
Louisville ZIP code footprint
How Louisville's ZIP footprint compares with national norms.
12 ZIP codes are listed for Louisville, covering a population of 622,981. They span 19 numbers, 40202 through 40220. The median covered metro on this site lists 12 codes; Louisville 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 402 prefix. That first trio is the sectional center facility — the USPS plant that sorts mail for the region — so every piece addressed to Louisville passes through one facility. The range runs 40202 to 40220.
ZIP boundaries are carrier routes, not city limits. USPS redraws them when delivery volume shifts; Kentucky redraws tax and municipal lines on a different schedule entirely. A Louisville mailing address does not prove an address sits inside Louisville city limits, and a single code can straddle the boundary.
ZIP codes in Louisville
All within Jefferson County, Kentucky.
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 Kentucky, even without local add-ons, remote sellers should validate the full delivery address against the Kentucky Department of Revenue lookup at the time of sale.
Frequently asked questions
Common questions about this area.
- How many ZIP codes does Louisville have?
- 12. They run from 40202 to 40220 across 1 sectional center prefix (402), spanning 19 numbers.
- What is the first ZIP code in Louisville, KY?
- 40202 is the lowest-numbered code serving Louisville. Numbering runs roughly northeast to west nationally, so Louisville's 402 prefix reflects its position in the Kentucky sorting network, not its size.
- Do all Louisville ZIP codes have the same sales tax rate?
- Inside Louisville city limits, yes — 6% 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.
Louisville sales tax breakdown and calculator
More Louisville data
Other Louisville datasets on this site.
- Louisville population and income
- Louisville sales tax rate
- Louisville property tax
- Louisville cost of living
- Louisville home values and rent
- Louisville crime rates
- Louisville public schools
- Louisville weather normals
- Louisville commute times
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