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County ZIP codes · California · FIPS 06021

Glenn County, CA ZIP Codes

Glenn County, California has 8 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 7 of the residential ones lie mainly in Glenn County and 1 mainly in a neighboring county; 2 cross the county line. Median household income ranges from $66,339 in 95988 (Willows) to $70,294 in 95951 (Hamilton City) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Glenn County?

95913 · Artois: $122k95920 · Butte City: –95939 · Elk Creek: $41k95943 · Glenn: $50k95951 · Hamilton City: $70k95963 · Orland: $68k95970 · Princeton: $69k95988 · Willows: $66k959639593995988959439597095920959519591395913 · Artois: $122k95920 · Butte City: –95939 · Elk Creek: $41k95943 · Glenn: $50k95951 · Hamilton City: $70k95963 · Orland: $68k95970 · Princeton: $69k95988 · Willows: $66k959639593995988959439597095920959519591395913 · Artois: $122k95920 · Butte City: –95939 · Elk Creek: $41k95943 · Glenn: $50k95951 · Hamilton City: $70k95963 · Orland: $68k95970 · Princeton: $69k95988 · Willows: $66k959639593995988959439592095951
The residential ZIP codes of Glenn 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: Orland, Willows, Hamilton City, Glenn, Princeton, Artois, Elk Creek, Butte City.

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

All 8 residential ZIP codes in Glenn County

7 ZIP codes lie mainly in Glenn County; 1 more reaches into it from a neighboring county and follows the first table.

Residential ZIP codes mainly in Glenn County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
95963 Orland 16,070 49 $68k $373k 89%
95988 Willows 8,808 27 $66k $297k 100%
95951 Hamilton City 2,698 138 $70k $330k 100%
95943 Glenn 621 10 $50k $1.17M 100%
95913 Artois 377 22 $122k $197k 100%
95939 Elk Creek 325 1 $41k $424k 100%
95920 Butte City 278 4 – $274k 100%

Partly in Glenn County

Residential ZIP codes mainly in another county that reach at least 1% into Glenn County, by their share here
In this county
95970 Princeton 453 14 $69k $371k 49%

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?

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

Share of each ZIP code's land in Glenn County and in the neighboring counties
ZIPIn GlennElsewhere
9596389%Tehama County 12%
9597049%Colusa County 51%

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

Which first three digits do Glenn 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 Glenn County starts with 959.

Three-digit prefixes of Glenn 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 Glenn County's
PrefixSectional centerHereAll codes
959 Sacramento, CA (SCF 956) 8 77

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