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County ZIP codes · Kentucky · FIPS 21169

Metcalfe County, KY ZIP Codes

Metcalfe County, Kentucky has 8 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 5 of the residential ones lie mainly in Metcalfe County and 3 mainly in a neighboring county; 7 cross the county line. Median household income ranges from $45,500 in 42749 (Horse Cave) to $53,609 in 42129 (Edmonton) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Metcalfe County?

42124 · Beaumont: –42129 · Edmonton: $54k42154 · Knob Lick: $58k42166 · Summer Shade: $50k42214 · Center: $47k42715 · Breeding: –42746 · Hardyville: $50k42749 · Horse Cave: $46k4212942749421664274642214427154215442124 · Beaumont: –42129 · Edmonton: $54k42154 · Knob Lick: $58k42166 · Summer Shade: $50k42214 · Center: $47k42715 · Breeding: –42746 · Hardyville: $50k42749 · Horse Cave: $46k4212942749421664274642214427154215442124 · Beaumont: –42129 · Edmonton: $54k42154 · Knob Lick: $58k42166 · Summer Shade: $50k42214 · Center: $47k42715 · Breeding: –42746 · Hardyville: $50k42749 · Horse Cave: $46k42129427494216642746422144271542154
The residential ZIP codes of Metcalfe County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

They carry 8 postal town names: Edmonton, Horse Cave, Summer Shade, Hardyville, Center, Knob Lick, Breeding, Beaumont.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 8 residential ZIP codes in Metcalfe County

5 ZIP codes lie mainly in Metcalfe County; 3 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Metcalfe County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
42129 Edmonton 7,302 38 $54k $111k 95%
42166 Summer Shade 2,691 38 $50k $116k 61%
42214 Center 749 35 $47k $130k 81%
42154 Knob Lick 629 26 $58k $156k 87%
42124 Beaumont 28 14 – – 100%

Partly in Metcalfe County

Residential ZIP codes mainly in another county that reach at least 1% into Metcalfe County, by their share here
In this county
42715 Breeding 417 17 – $227k 22%
42749 Horse Cave 4,423 48 $46k $142k 13%
42746 Hardyville 2,101 44 $50k $115k 6%

Download the 8 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

7 ZIP codes of Metcalfe County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Metcalfe County and in the neighboring counties
ZIPIn MetcalfeElsewhere
4212995%Adair County 5%
4274913%Hart County 80%; Barren County 6%
4216661%Barren County 24%; Monroe County 14%
427466%Hart County 79%; Green County 15%
4221481%Green County 19%
4215487%Barren County 13%
4271522%Adair County 62%; Cumberland County 16%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Metcalfe County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Metcalfe County's ZIP codes use 3 prefixes: 421, 422 and 427.

Three-digit prefixes of Metcalfe County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Metcalfe County's
PrefixSectional centerHereAll codes
421 Nashville, TN (SCF 370) 4 33
422 Nashville, TN (SCF 370) 1 36
427 Louisville, KY (SCF 400) 3 38

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.