Zip Code 40223 — Louisville, KY

ZIP Code 40223 is associated with Louisville, KY, in Jefferson County. The listed population estimate is 22,798; estimated density is 730.1 people per square mile. Among records with population estimates, it ranks #15 of 36 in Jefferson County and #65 of 765 in KY.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (38.261530, -85.543280)

Data MetricLocal Statistic
Postal / Zip Code40223
Primary CityLouisville
State / ProvinceKY
CountyJefferson
Total Population22,798
Population Density730.1 people/sq mi
TimezoneAmerica/Kentucky/Louisville

How 40223 Compares

MetricZIP 40223Jefferson County recordsKY records
Population estimate22,798788,809 (sum)4,542,460 (sum)
Population Density730.1 /sq mi----
County population rank#15 of 36----
State population rank#65 of 765----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in KY

ZIP CodeCityDistancePopulation estimate
ZIP 40243Louisville1.7 mi12,002
ZIP 40242Louisville2.8 mi11,168
ZIP 40241Louisville3.4 mi30,696
ZIP 40222Louisville3.7 mi21,470
ZIP 40056Pewee Valley4.3 mi3,441

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →