Find the last 4 digits (ZIP+4) for an address in 40231

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ZIP Code 40231 – Louisville, KY

Louisville, Kentucky · Jefferson County · Eastern time

ZIP code40231
CityLouisville
StateKentucky
CountyJefferson County
Population0
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area0.07 sq mi
Center (lat, long)38.1955, -85.6952

Area codes in this area

502

These are the area codes that most often serve ZIP 40231 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

40201 Louisville · 1.1 mi40224 Louisville · 1.1 mi40225 Louisville · 1.1 mi40232 Louisville · 1.1 mi40233 Louisville · 1.1 mi40250 Louisville · 1.1 mi40251 Louisville · 1.1 mi40252 Louisville · 1.1 mi

About ZIP 40231

ZIP code 40231 is assigned to Louisville, Kentucky. It lies in Jefferson County. Its Census area covers about 0.07 square miles of land. The closest neighboring ZIP is 40201 (Louisville), about 1.1 miles away.

Every address in 40231 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources