County ZIP codes · Texas · FIPS 48275

Knox County, TX ZIP Codes

Knox County, Texas has 6 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 4 of the residential ones lie mainly in Knox County and 2 mainly in a neighboring county; 4 cross the county line. Median household income ranges from $45,880 in 76380 (Seymour) to $61,335 in 76371 (Munday) (Census Bureau, ACS 2020-2024).

ACS2020-24
Census2020

Where are the ZIP codes of Knox County?

The residential ZIP codes of Knox 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?

76380 · $46k76371 · $61k

They carry 6 postal town names: Seymour, Munday, Knox City, Crowell, Benjamin, Goree.

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

All 6 residential ZIP codes in Knox County

4 ZIP codes lie mainly in Knox County; 2 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Knox County, largest first; "In this county" is the share of the ZIP's land in the county
						In this county
76371	Munday	1,675	13	$61k	$85k	97%
79529	Knox City	1,131	12	$51k	$63k	85%
79505	Benjamin	266	1	$53k	$63k	100%
76363	Goree	137	2	$53k	–	100%

Partly in Knox County

Residential ZIP codes mainly in another county that reach at least 1% into Knox County, by their share here
						In this county
79227	Crowell	1,065	1	$62k	$70k	34%
76380	Seymour	3,509	4	$46k	$103k	8%

Download the 6 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?

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

Share of each ZIP code's land in Knox County and in the neighboring counties
ZIP	In Knox	Elsewhere
76380	8%	Baylor County92%
76371	97%	Haskell County3%
79529	85%	Haskell County15%
79227	34%	Foard County66%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Knox County's ZIP codes use 3 prefixes: 763, 792 and 795.

Three-digit prefixes of Knox 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 Knox County's
Prefix	Sectional center	Here	All codes
763	Fort Worth, TX (SCF 760)	3	32
792	Amarillo, TX (SCF 790)	1	32
795	Abilene, TX (SCF 795)	2	49

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