Siskiyou County GIS Maps
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Siskiyou County, California, has 44,076 residents and covers 6,278.8 square miles. The population declined 1.8% between the 2010 and 2020 census. More residents left than arrived over that decade. The FIPS code for Siskiyou County is 06093.
Yreka is the county's largest population center. Siskiyou County also includes 21 zip codes, 3 public school districts and 27 municipalities. Those boundaries help explain why population, schools, and housing can look different from one part of the county to another. The map below shows how those county lines, zip codes, and school districts fit together, and the sections that follow use that same geography to show population, demographics, school enrollment and housing patterns in more detail.
Maps, GIS layers and sample data. Paid packages add full layers, analytics and database files.
Siskiyou County Trends
- Population
- 44,076▾
- Median Home Value
- $284,500▴
- K-12 Enrollment
- 1,396▴
County analytics dashboards with historical trends & projections included in package downloads.
Free starter access previews county maps, lightweight GIS, and sample data. Paid packages unlock full GIS layers, analytics, and database files.
Siskiyou County Maps
The maps below show a few of the county map styles included in our downloads. County packages include map exports in JPEG, PNG, SVG, PDF and GeoTIFF formats plus more than 20 GIS layers for mapping, research and analysis. Available layers include zip codes, area codes, subdivisions, school districts, political boundaries, roads, water features, points of interest and more.
County packages also include historical county demographics, business intelligence, analytical dashboards, AI-ready prompts, markdown files and related reference data. Everything is organized to save hours of manual work collecting current data, cleaning it and joining it together. That makes it easier to move faster on analytics, due diligence, business planning and location research. Paid packages are built for commercial use, but some package contents include source-specific attribution or notice guidance. Review Licensing & Data Source Notices.
Siskiyou County Population
Siskiyou County had 44,076 residents in 2020. That was 1.8% lower than in 2010. Siskiyou County had 225 fewer people in 2020 than it did in 2000, which points to a long-term population decline. The county is fairly spread out, with about 7 people per square mile. Some of the county's most populated postal areas include Yreka, Mount Shasta and Weed.
Population Trend in Siskiyou County CA
Siskiyou County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.
Siskiyou County Zip Codes
Siskiyou County has 21 zip codes. Some of the county's most populated zip codes include Yreka (96097), Mount Shasta (96067) and Weed (96094). Yreka is the largest zip by population, with about 10,131 residents or 23% of the county total. Together, the three largest zips account for about 55% of all county residents based on 2020 population estimates.
Most Populated Zip Codes in Siskiyou County CA
| ZIP | Area | Population | Trend |
|---|---|---|---|
| 96097 | Yreka | 10,131 | ▴ 1% |
| 96067 | Mount Shasta | 7,145 | ▾ -0.3% |
| 96094 | Weed | 6,908 | ▴ 4.2% |
| 96064 | Montague | 4,387 | ▾ -4.1% |
| 96032 | Fort Jones | 2,593 | ▴ 7.7% |
| Download all zip code data | |||
Siskiyou County Zip Code populations and trends per most recent census data.
Siskiyou County Demographics
Siskiyou County has a median age of 47.4, which makes the county a little older than California overall. About 20.1% of residents are under 18, while 27.2% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is 65 and over at about 27.2% of the population, which points to an older population profile. About 23.1% of adults have a bachelor's degree or higher, above the statewide figure of 36.5%. The county is majority White by population, with Hispanic, Asian, Black and multiracial residents making up a meaningful share of the local mix.
Key Demographics for Siskiyou County CA
Median Age
47.4
Under 18
20.1%
Age 65+
27.2%
Bachelor's+
23.1%
Siskiyou County School Districts
Siskiyou County is served by 3 public school districts with 1,396 students enrolled in 2024. The largest districts on the county map are Scott Valley Unified, Tulelake Basin Joint Unified and Butte Valley Unified. Those three districts account for about 100% of public school enrollment in the map area. Total enrollment has stayed fairly steady in recent years, based on district totals from 2017 to 2024.
Largest School Districts by Enrollment in Siskiyou County CA
| District | Enrollment | Share | Trend |
|---|---|---|---|
| Scott Valley Unified School District | 604 | 43.3% | ▾ -3.2% |
| Tulelake Basin Joint Unified School District | 479 | 34.3% | ▴ 11.7% |
| Butte Valley Unified School District | 313 | 22.4% | ▴ 3.6% |
| Download all school district data | |||
Siskiyou County school district enrollment and trends per most recent NCES reporting data.
Siskiyou County Housing & Real Estate
Siskiyou County has a median home value of $284,500 and a median gross rent of $1,043. About 70% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the California median, while rents come in below the state average. In March 2026, the median listing price was $379,000 and homes spent about 87 days on the market.
Siskiyou County Housing Mix
Siskiyou County housing mix: owner, renter and vacant units.
Siskiyou County Housing Trends
Siskiyou County median home value and rent trend (last 5 years).
Businesses in Siskiyou County, CA
Siskiyou County has 2,495 business listings across 465 categories. The largest categories in Siskiyou County business listings are Lake (105, 4.2%), Churches & Religious Organizations (64, 2.6%), and Structure And Geography (61, 2.4%). The full Siskiyou County business listings dataset includes names, categories, addresses and contact details where available. Siskiyou County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.
Top Business Categories in Siskiyou County, CA
| Category | Businesses | Share |
|---|---|---|
| Lake | 105 | 4.2% |
| Churches & Religious Organizations | 64 | 2.6% |
| Structure And Geography | 61 | 2.4% |
| Gas Stations | 51 | 2.0% |
| Parks & Recreation | 50 | 2.0% |
| Elementary School | 46 | 1.8% |
| Mountain | 46 | 1.8% |
| Public And Government Association | 43 | 1.7% |
| Hotels | 42 | 1.7% |
| Landmark And Historical Building | 37 | 1.5% |
Siskiyou County Business Listings
| Business | Category | City |
|---|---|---|
| Ana's House | Accommodation | Weed |
| AGT CPAs and Advisors | Accountant | Mt Shasta |
| Living Waters Recreation | Active Life | Mt Shasta |
| Yreka Healing Arts Center | Acupuncture | Yreka |
| Voltos Advertising Agency | Advertising Agency | Mt Shasta |
| Scott River Pump & Irrigation | Agricultural Service | Fort Jones |
| Sierra Cascade | Agriculture | Siskiyou County |
| Cowling Air | Airport | Montague |
| Mount Shasta Ambulance Services | Ambulance And Ems Services | Mt Shasta |
| Highland House Restaurant | American Restaurants | Mount Shasta |
| Download Siskiyou County business listings | ||
Siskiyou County business listings sourced from Overture Maps. Includes locations with a high level of confidence.
Siskiyou County Basemaps
Siskiyou County map and data packages include a set of useful basemaps to help you get started quickly. These include a custom light grey canvas, USGS topo, imagery and other reference layers that make it easier to build clear, meaningful county maps using the included GIS layers, your own data or both. Pre-rendered map tiles for the light grey basemap are included so you can use them offline or host them on your own CDN.
Get the Full Siskiyou County Data Package
This page shows a preview of what's included in the Siskiyou County data package. The full package gives you a ready-to-use county data system with GIS layers, historical data, maps, database files and planning tools that save hours of manual data gathering, cleanup and joins. Everything is organized to help you skip data wrangling and start analysis faster.
- 20+ GIS layers for zip codes, school districts, roads, water, boundaries and more
- Historical county demographics, housing, income and trend data
- ZIP code population files and school district enrollment history
- Database files, markdowns, AI-ready prompts and documentation
- Map exports in PNG, JPEG, PDF, SVG and GeoTIFF formats
- Offline-ready data explorer, map and analytics tools
Paid packages support commercial use, client work, and derived outputs. Some package contents may include source-specific attribution or provider notices. See Licensing & Data Source Notices.
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Nearby Counties
Browse county data pages for the counties that border Siskiyou County. These nearby pages include the same mix of county maps, demographic summaries, school district context, housing trends and package links.