| City: | Arcata, California |
| County: | Humboldt County |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 9:58:35 AM |
| Population: | No Population Data |
| Area Codes: | 369 / 707 |
| Classification: | PO Box |
| Coordinates: | 40.8668, -124.0830 |
| Quick Link: |
ZIP code 95518 serves as a specialized postal facility in Arcata, California. Despite its PO Box classification, this isn't a traditional small-town post office. The ZIP serves 783 PO Boxes and 260 business delivery points from a point location within the larger Arcata area (enclosed by ZIP 95521).
The facility handles mail for a single street address, H Street, which contains 93 delivery records with unit designators. This pattern suggests a multi-unit building or complex rather than traditional residential streets. With 9 business establishments employing 29 workers, this ZIP appears to serve a specific commercial or institutional purpose within Arcata.
Arcata itself has multiple ZIP codes providing standard street delivery, so this PO Box classification represents a specialized function rather than community-wide postal service. Residents and businesses using 95518 do so by choice or specific need, not because street delivery is unavailable in Arcata.
Only H Street appears, with all 93 records containing unit designators, suggesting a single multi-unit building or complex.
ZIP Code 95518 supports both business and residential activity. According to the Business Census (2024), there are 9 business establishments, employing about 26 people with an annual payroll of $867,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 995Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 9Source: CBP |
| 1st Quarter Payroll: | $207,000Source: CBP |
| Annual Payroll: | $867,000Source: CBP |
| # of Employees: | 26Source: CBP |
ZIP Code 95518 is located in Humboldt County, California, within the Eureka-Arcata, CA Metropolitan Statistical Area (CBSA 21700) and California's 2nd Congressional District. This Micro area has a population of 134,623 people, about 0.00% of whom live in ZIP Code 95518. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Eureka-Arcata, CASource: Census |
| CBSA Number: | 21700Source: Census |
| CBSA Type: | MicroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 134,623Source: Census |
| MSA: | Source: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 02Source: USPS |
| Congressional Land Area: | 12952.23 sq miSource: Census |
| PMSA: | Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 0602476Source: Census |
| Place Name: | Arcata city; CaliforniaSource: Census |
We could not locate which school district 95518 belongs to, but we will update this once new district data is released. There are 0 public schools with a nearby mailing address, but we have located 5 public schools nearby. There are however 1 private school(s). It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.