County ZIP codes · Texas · FIPS 48235

Irion County, TX ZIP Codes

Irion County, Texas has 4 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 2 of the residential ones lie mainly in Irion County and 2 mainly in a neighboring county; 3 cross the county line. Median household income ranges from $69,450 in 76901 to $81,833 in 76904 (Census Bureau, ACS 2020-2024).

ACS2020-24
Census2020

Where are the ZIP codes of Irion County?

The residential ZIP codes of Irion 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?

76901 · $70k76904 · $82k

They carry 3 postal town names: San Angelo, Mertzon, Barnhart.

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

All 4 residential ZIP codes in Irion County

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

Residential ZIP codes mainly in Irion County, largest first; "In this county" is the share of the ZIP's land in the county
						In this county
76941	Mertzon	1,158	3	$78k	$192k	100%
76930	Barnhart	81	0	$59k	–	50%

Partly in Irion County

Residential ZIP codes mainly in another county that reach at least 1% into Irion County, by their share here
						In this county
76901	San Angelo	31,831	92	$70k	$181k	28%
76904	San Angelo	36,954	84	$82k	$285k	8%

Download the 4 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?

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

Share of each ZIP code's land in Irion County and in the neighboring counties
ZIP	In Irion	Elsewhere
76904	8%	Tom Green County92%
76901	28%	Tom Green County72%
76930	50%	Crockett County50%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Irion County starts with 769.

Three-digit prefixes of Irion 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 Irion County's
Prefix	Sectional center	Here	All codes
769	Abilene, TX (SCF 795)	4	27

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