| ZIP Codes: | 9 ZIP Codes (1 Standard, 3 PO Box, 5 Unique) [See All] |
| Area Code: | 502 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:12:18 PM |
| Population: | 51,893 [See All] |
| FIPS: | 21073 |
| CBSA: | Frankfort, KY |
| Land Area: | 220 sq mi |
| Water Area: | 4 sq mi |
| Coordinates: | 38.2086, -84.8683 |
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51,893 residents live across 9 ZIPs covering 220 sq mi, served by 1 distinct USPS-recognized cities.
Population moved from 50,239 to 51,893 from 2014 to 2024 — a +3.3% change. 1 ZIPs gained residents, 0 lost.
The county's wealthiest ZIP 40601 (Frankfort, $65,732 median) and poorest ZIP 40601 (Frankfort, $65,732) are 0.0 miles apart — a 1.0× income gap across local geography.
Within Kentucky, this is the #21 most populous of 120 counties and ranks #34 for median household income .
Hosts 4 single-entity Unique ZIPs: 40621Ky Dept Human Resources ; 40620Ky Dept Of Revenue ; 40618Ky Dept Of Revenue ; and 40622Ky Dept Of Transportation .
Weighted by population, the typical household earns about $65,732 across the county — reflecting what a typical resident sees, not a simple ZIP average.
31.9% of adults age 25+ hold a bachelor's degree or higher (11,708 of 36,730 reporting).
1 Standard delivery, 3 PO Box only, 5 single-entity Unique ZIPs serve this county.
5 ZIP codes in this county serve a single facility — typically theme parks, universities, large corporations, airports, or government complexes.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 40601 | Frankfort | Standard | 51,893 | $65,732 | 220.3 | 3.3% |
| 40604 | Frankfort | PO Box | — | — | 0.0 | — |
| 40621 | Frankfort | Unique | — | — | 0.1 | — |
| 40603 | Frankfort | PO Box | — | — | 0.0 | — |
| 40620 | Frankfort | Unique | — | — | 0.0 | — |
| 40618 | Frankfort | Unique | — | — | 0.0 | — |
| 40622 | Frankfort | Unique | — | — | 0.0 | — |
| 40619 | Frankfort | Unique | — | — | 0.0 | — |
| 40602 | Frankfort | PO Box | — | — | 0.0 | — |