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County ZIP codes · Kansas · FIPS 20027

Clay County, KS ZIP Codes

Clay County, Kansas has 9 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 5 of the residential ones lie mainly in Clay County and 4 mainly in a neighboring county; 8 cross the county line. Median household income ranges from $55,284 in 66938 (Clyde) to $70,275 in 67432 (Clay Center) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Clay County?

66937 · Clifton: $64k66938 · Clyde: $55k66962 · Palmer: $75k67432 · Clay Center: $70k67447 · Green: $65k67458 · Longford: $64k67466 · Miltonvale: $56k67468 · Morganville: $58k67487 · Wakefield: $68k67432669386693767466674876745867468669626744766937 · Clifton: $64k66938 · Clyde: $55k66962 · Palmer: $75k67432 · Clay Center: $70k67447 · Green: $65k67458 · Longford: $64k67466 · Miltonvale: $56k67468 · Morganville: $58k67487 · Wakefield: $68k67432669386693767466674876745867468669626744766937 · Clifton: $64k66938 · Clyde: $55k66962 · Palmer: $75k67432 · Clay Center: $70k67447 · Green: $65k67458 · Longford: $64k67466 · Miltonvale: $56k67468 · Morganville: $58k67487 · Wakefield: $68k674326693866937674666748767458674686696267447
The residential ZIP codes of Clay 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 9 postal town names.

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

All 9 residential ZIP codes in Clay County

5 ZIP codes lie mainly in Clay County; 4 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Clay County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
67432 Clay Center 5,607 16 $70k $154k 90%
67487 Wakefield 1,515 15 $68k $184k 81%
67458 Longford 394 6 $64k $219k 76%
67468 Morganville 265 6 $58k $74k 100%
67447 Green 207 3 $65k $156k 59%

Partly in Clay County

Residential ZIP codes mainly in another county that reach at least 1% into Clay County, by their share here
In this county
66937 Clifton 691 5 $64k $100k 46%
66962 Palmer 302 6 $75k $304k 22%
67466 Miltonvale 728 5 $56k $86k 10%
66938 Clyde 1,191 10 $55k $80k 5%

Download the 9 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?

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

Share of each ZIP code's land in Clay County and in the neighboring counties
ZIPIn ClayElsewhere
6743290%Ottawa County 10%
6748781%Dickinson County 13%; Geary County 6%
669385%Cloud County 67%; Washington County 19%; Republic County 9%
6746610%Cloud County 59%; Ottawa County 32%
6693746%Washington County 54%
6745876%Ottawa County 24%
6696222%Washington County 78%
6744759%Riley County 41%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Clay County's ZIP codes use 2 prefixes: 669 and 674.

Three-digit prefixes of Clay 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 Clay County's
PrefixSectional centerHereAll codes
669 Wichita, KS (SCF 670) 3 34
674 Wichita, KS (SCF 670) 6 58

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