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ZIP Code Database - Facts & Stats

Data Last Updated: June 1, 2023

ZIP Codes for City of Fairfield, KY

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Counties:NELSON, KY
Area Code(s):502
Timezone(s):Eastern (GMT -05:00)
City Population:113 (More Details)
CBSA:Bardstown, KY
Congressional District(s):02
Land Area:418 square miles (county)
Water Area:7 square miles (county)

1 ZIP Code

Fairfield, KY ZIP Code Boundaries

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Fairfield, KY Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases
40020P.O. Box109100.00%

Fairfield, KY Demographic Information *

Total population**113
Male population59
Female population54
Median age (years)46.5
White Population99
Black Population2
Indian Population0
Asian Population0
Hawaiian Population0
Hispanic Population8
Median age (Male)42.3
Median age (Female)53.5
Total households48
Family households (families)30
Average household size2.35
Average family size3.07
Total housing units57
* Demographic data is based on 2010 Census for the City of FAIRFIELD.
** City and ZIP Code Population will not be equal due to differences in their geographies.


  1. U.S. Postal Service [Last Updated: 2/1/2023],
  2. Internal Data Creation [Last Updated: 2/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],