What to know about ZIP 40231
ZIP code 40231 covers Louisville, KY in Jefferson County.
It sits in telephone area code 502; U.S. House district KY-3.
Louisville city, KY
ZIP Code 40231 — Louisville city, KY Demographics & Data
Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.
Low Snow Area
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At a glance
Overview of ZIP Code 40231
UniversityUniversity / college area
Local search focus: University
Louisville, KY sits in a university / college context (near bellarmine university (1.8 mi)). Expect stronger interest in student housing, rentals, walkability, transit, and a younger adult age mix versus typical suburban ZIPs.
Climate risk and migration signals
FEMA’s National Risk Index rates natural-hazard risk for Louisville city, KY as Relatively High (composite score 98.3), which is among the highest nationally. The strongest component scores on US5 are flood (99.1) and wildfire (56.1). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.
Climate normals for Louisville city, KY show little to no average snow and around 48.3 inches of annual precipitation.
Nearby (from this ZIP)
Airport SDF (2.8 miles (4.4 km)) · Bellarmine University (1.8 miles (2.8 km)) · Abraham Lincoln Birthplace National Historical Park (42.1 miles (67.8 km)) · VA: VA Healthcare Center, Newburg Kentucky (0.8 miles (1.2 km))
Full lists and map pins are in the Infrastructure section below.