How many zip codes are in Siskiyou County California?

Siskiyou County, California contains 21 zip codes.

What is the county seat of Siskiyou County?

The county seat of Siskiyou County, California is Yreka.

What cities are in Siskiyou County?

Siskiyou County USPS city names in this directory include Yreka, Mount Shasta, Weed, Montague, Fort Jones, Dunsmuir, Etna, Hornbrook and 13 more. The county seat is Yreka.

What is the population of Siskiyou County?

The population of Siskiyou County, California is approximately 43,151.

What zip codes are in Siskiyou County?

Siskiyou County contains 21 zip codes: 21 standard delivery ZIPs. Browse the table on this page for the complete list.

Siskiyou County, California Zip Codes

📍 Siskiyou County has 21 zip codes with a population of 43,151.

County

Siskiyou

County Seat

Yreka

Zip Codes

Population

43,151

Siskiyou County is located in California with a land area of 4,375 square miles. The county seat is Yreka. Below you'll find all 21 zip codes in Siskiyou County with population, income and home value, the county's affordability profile, and links to its 21 city pages.

Population and demographic data sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code routing data sourced from the United States Postal Service (USPS).

All Siskiyou County Zip Codes

ZIP Code	City	County	Population	Median Income	Median Home	Details
95568	Somes Bar	Siskiyou	224	—	$358,300	View →
96014	Callahan	Siskiyou	173	—	$124,500	View →
96023	Dorris	Siskiyou	1,189	$37,438	$137,700	View →
96025	Dunsmuir	Siskiyou	2,247	$41,703	$241,900	View →
96027	Etna	Siskiyou	1,907	$59,688	$258,700	View →
96031	Forks Of Salmon	Siskiyou	66	$26,000	$173,200	View →
96032	Fort Jones	Siskiyou	2,606	$62,581	$268,000	View →
96034	Gazelle	Siskiyou	345	$54,250	$331,300	View →
96037	Greenview	Siskiyou	131	$103,929	—	View →
96038	Grenada	Siskiyou	499	$56,857	$294,400	View →
96039	Happy Camp	Siskiyou	726	$38,295	$177,700	View →
96044	Hornbrook	Siskiyou	1,215	$57,981	$207,900	View →
96050	Klamath River	Siskiyou	400	$36,354	$237,000	View →
96057	Mccloud	Siskiyou	1,158	$45,625	$307,500	View →
96058	Macdoel	Siskiyou	809	$55,662	$147,200	View →
96064	Montague	Siskiyou	4,690	$58,596	$234,400	View →
96067	Mount Shasta	Siskiyou	7,321	$59,093	$350,400	View →
96085	Scott Bar	Siskiyou	38	—	—	View →
96086	Seiad Valley	Siskiyou	268	$46,146	$234,300	View →
96094	Weed	Siskiyou	6,985	$62,279	$276,500	View →
96097	Yreka	Siskiyou	10,154	$49,281	$219,200	View →

Siskiyou County at a Glance

Residents (ZIPs with data)

43,151

Median household income

$54,250

Median home value

$237,000

Price-to-income ratio

4.6

Median rent

$953

Owner-occupied

72%

Bachelor's degree+

20%

Poverty rate

16.9%

Siskiyou County has 21 ZIP codes in this directory: 21 standard delivery ZIPs. The 17 ZIPs with published Census housing data cover 43,151 residents, the largest being 96097 (Yreka) with 10,154 people.

The median ZIP in Siskiyou County has a household income of $54,250 and a home value of $237,000, a price-to-income ratio of 4.6, below the 6.7 California ZIP median. Affordability ranges from 96058 in Macdoel at a ratio of 2.6 to 96067 in Mount Shasta, where the median home is $350,400. The highest median income is in 96032 (Fort Jones) at $62,581. Median rent across these ZIPs is $953 a month.

72% of households in the typical Siskiyou County ZIP own their home (statewide ZIP median 64%). 20% of adults hold a bachelor's degree, below the 31% statewide median. The median poverty rate is 16.9%, far above the 10.8% statewide ZIP median. Overall density is about 10 residents per square mile across 4,375 square miles of ZIP land area.

Medians are taken across the ZIP codes listed below (each ZIP weighted equally); PO Box and no-data ZIPs are excluded. Definitions on the methodology page; statewide comparisons in the 2026 California ZIP Code Affordability Report.