| ZIP Codes: | 7 ZIP Codes (5 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Code: | 530 |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 11:52:46 PM |
| Population: | 29,177 [See All] |
| FIPS: | 06021 |
| Land Area: | 1,323 sq mi |
| Water Area: | 16 sq mi |
| Coordinates: | 39.5832, -122.2098 |
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29,177 residents live across 7 ZIPs covering 1,323 sq mi, served by 7 distinct USPS-recognized cities.
Population moved from 28,613 to 28,800 from 2014 to 2024 — a +0.7% change. 1 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 95913 (Artois, $121,912 median) and poorest ZIP 95939 (Elk Creek, $40,568) are 28.6 miles apart — a 3.0× income gap across local geography.
Median home values vary 6.0× across this county — from $196,500 in 95913 (Artois) to $1,173,100 in 95943 (Glenn).
Density varies 89× across the county — from 1 people/sq mi in 95939 (Elk Creek) to 110 in 95951 (Hamilton City).
Educational attainment ranges from 10.5% bachelor's+ in 95951 (Hamilton City) to 29.0% in 95920 (Butte City) — the breadth of educational profiles across the area.
Within California, this is the #48 most populous of 58 counties and ranks #41 for median household income .
Weighted by population, the typical household earns about $67,761 across the county — reflecting what a typical resident sees, not a simple ZIP average.
15.7% of adults age 25+ hold a bachelor's degree or higher (2,972 of 18,905 reporting).
5 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.
Median household income spans 3.0× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 95963 | Orland | Standard | 16,070 | $68,091 | 491.4 | 7.0% |
| 95988 | Willows | Standard | 8,808 | $66,339 | 397.1 | -1.2% |
| 95951 | Hamilton City | PO Box | 2,698 | $70,294 | 24.6 | -8.5% |
| 95943 | Glenn | Standard | 621 | $49,744 | 64.5 | -22.9% |
| 95913 | Artois | PO Box | 377 | $121,912 | 12.2 | — |
| 95939 | Elk Creek | Standard | 325 | $40,568 | 263.2 | -36.5% |
| 95920 | Butte City | Standard | 278 | — | 70.0 | -33.3% |