County hub suburban Kentucky

Fayette County, KY

Aggregated demographic, housing, and geographic context for the 16 ZIP codes inside Fayette County, drawn from public Census ACS and SimpleMaps data.

ZIP codes
16
in this county
Total population
322,455
across all listed ZIPs
Cities
1
distinct city/town names
Avg density
1,798
people / sq mi
Avg median income
household, ACS
Avg home value
owner-occupied

ZIP codes in Fayette County

ZIPCityPopulationDensityMedian income
40509 Lexington 44,352 359
40517 Lexington 37,296 2,333
40515 Lexington 36,251 253
40511 Lexington 33,696 151
40503 Lexington 28,738 1,256
40502 Lexington 26,996 1,459
40504 Lexington 26,437 1,656
40508 Lexington 26,175 2,403
40505 Lexington 26,081 1,261
40514 Lexington 17,047 2,205
40513 Lexington 10,850 285
40516 Lexington 2,773 35
40510 Lexington 2,024 34
40507 Lexington 1,907 1,710
40526 Lexington 1,832 11,577
40536 Lexington

About Fayette County

Counties are the workhorse unit of American local government — they administer property taxes, run the courts and sheriff’s office, manage many road and library systems, and in much of the country they collect public health and zoning data that ZIP codes don’t. Fayette County in Kentucky contains roughly 16 ZIP codes spread across 1 distinct cities and unincorporated communities, with an aggregate population of about 322,455. Reading those ZIPs together at the county level smooths over neighborhood-by-neighborhood noise and surfaces the broader economic and demographic shape of the area. For block-level detail, drill into any individual ZIP profile or compare against the wider Kentucky index.

The average density across listed ZIPs sits at roughly 1,798, which classifies the county overall as a suburban environment. That label is a generalization — nearly every county contains both a relatively dense core and quieter outlying ZIPs, and the gap between them is often what determines where you actually want to live or open a business. Average median household income in our enriched ZIPs lands near —, with average owner-occupied home values around —; both numbers move dramatically as you cross from one ZIP to the next, so use the table above as a sorting tool, not a verdict.

If you’re moving into Fayette County, the county itself is also where most of your real-life paperwork will land — vehicle registration, voter registration, property recording, and school district enrollment in many states. Knowing the county that contains your prospective ZIP makes it much easier to look up the right tax assessor, election office, or school district website. Our relocation guide walks through the order in which to tackle these handoffs after a move.

For service-area planning, the county is also where most US business licensing and many sales-tax rules are administered. Service businesses scoping Fayette County should pair this aggregate view with the individual ZIP profiles to identify the densest, highest-income pockets first, then expand outward along whatever transportation corridor matches their delivery model.