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Zip Code 40503 — Lexington, KY

40503 is a ZIP Code associated with Lexington, KY, located within Fayette. 40503 ranks #5 out of 16 ZIP codes in Fayette County by population (and #42 out of 780 in KY). The area supports an estimated population of 27,451 residents across Data Pending housing units, with a population density of 1,199.8 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (38.004700, -84.534340)

Data MetricLocal Statistic
Postal / Zip Code40503
Primary CityLexington
State / ProvinceKY
CountyFayette
Total Population27,451
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density1,199.8 people/sq mi
TimezoneAmerica/New_York

How 40503 Compares

MetricZIP 40503Fayette CountyKY State Average
Population27,451324,356 (Total)4,542,460 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density1,199.8 /sq mi----
County Pop Rank#5 of 16----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 40514Lexington2.2 mi16,961N/A
Zip 40536Lexington2.3 miN/AN/A
Zip 40526Lexington2.5 mi2,383N/A
Zip 40504Lexington2.6 mi25,816N/A
Zip 40517Lexington2.9 mi35,656N/A

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 →