ZIP Code 40020

Zip Code: 40020
Type: POBox
Official USPS city name: Fairfield
Official USPS State Code: KY
Official State Name: Kentucky
ZCTA: TRUE
Population: 111.0
Density: 90.3
Primary Official County Code: 21179
Primary Official County Name: Nelson
Official County Name: Nelson
Official County Code: 21179
Imprecise: FALSE
Military: FALSE
Timezone: America/New_York (13:55 PM Tuesday, June 23 2026-06-23 (GMT -0400))
Geo Point: 37.93504, -85.38753

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