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County ZIP codes · Kentucky · FIPS 21061

Edmonson County, KY ZIP Codes

Edmonson County, Kentucky has 11 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 6 of the residential ones lie mainly in Edmonson County and 5 mainly in a neighboring county; 7 cross the county line. Median household income ranges from $48,217 in 42101 (Bowling Green) to $70,191 in 42171 (Smiths Grove) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Edmonson County?

42101 · Bowling Green: $48k42160 · Park City: $49k42163 · Rocky Hill: –42171 · Smiths Grove: $70k42207 · Bee Spring: $46k42210 · Brownsville: $48k42259 · Mammoth Cave: $34k42275 · Roundhill: $45k42285 · Sweeden: $54k42721 · Caneyville: $50k42729 · Cub Run: $55k4210142721421714221042160422594272942275422074228542101 · Bowling Green: $48k42160 · Park City: $49k42163 · Rocky Hill: –42171 · Smiths Grove: $70k42207 · Bee Spring: $46k42210 · Brownsville: $48k42259 · Mammoth Cave: $34k42275 · Roundhill: $45k42285 · Sweeden: $54k42721 · Caneyville: $50k42729 · Cub Run: $55k4210142721421714221042160422594272942275422074228542101 · Bowling Green: $48k42160 · Park City: $49k42163 · Rocky Hill: –42171 · Smiths Grove: $70k42207 · Bee Spring: $46k42210 · Brownsville: $48k42259 · Mammoth Cave: $34k42275 · Roundhill: $45k42285 · Sweeden: $54k42721 · Caneyville: $50k42729 · Cub Run: $55k42101427214217142210421604225942729422754220742285
The residential ZIP codes of Edmonson 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 11 postal town names.

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

All 11 residential ZIP codes in Edmonson County

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

Residential ZIP codes mainly in Edmonson County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
42210 Brownsville 4,231 51 $48k $142k 100%
42160 Park City 2,822 44 $49k $157k 55%
42259 Mammoth Cave 1,090 15 $34k $148k 100%
42207 Bee Spring 927 48 $46k $153k 97%
42285 Sweeden 531 64 $54k $176k 100%
42163 Rocky Hill 48 58 – – 100%

Partly in Edmonson County

Residential ZIP codes mainly in another county that reach at least 1% into Edmonson County, by their share here
In this county
42729 Cub Run 2,142 52 $55k $189k 29%
42171 Smiths Grove 6,723 65 $70k $188k 28%
42275 Roundhill 855 18 $45k $181k 28%
42101 Bowling Green 65,421 233 $48k $207k 8%
42721 Caneyville 4,353 31 $50k $131k 4%

Download the 11 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 Edmonson County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Edmonson County and in the neighboring counties
ZIPIn EdmonsonElsewhere
421018%Warren County 89%; Butler County 3%
4217128%Warren County 48%; Barren County 25%
427214%Grayson County 90%; Butler County 6%
4216055%Barren County 45%
4272929%Hart County 71%
4220797%Grayson County 3%
4227528%Butler County 72%

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

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

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

Three-digit prefixes of Edmonson 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 Edmonson County's
PrefixSectional centerHereAll codes
421 Nashville, TN (SCF 370) 4 33
422 Nashville, TN (SCF 370) 5 36
427 Louisville, KY (SCF 400) 2 38

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