Eureka, CA ZIP Codes
2 ZIP codes serve Eureka, California: 95503 and 95501. Together they are home to 47,944 residents in 19,246 households. That is more than the 26,010 people counted inside Eureka city limits, because these ZIP codes reach past its boundary. Median household income ranges from $54,137 in 95501 to $71,855 in 95503.
Eureka city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 26,010 |
| Households | 10,392 |
| Median household income | $57,662 |
| Median home value | $404,500 |
| Median age | 39.1 |
| Median rent | $1,195 |
All 2 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 47,944 |
| Households (sum of ZIP codes) | 19,246 |
| Median household income, range across ZIP codes | $54,137 (95501) to $71,855 (95503) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $63,326 |
| Homeowners | 55.8% |
| Households with kids under 18 | 23.0% |
| Moved in the past year | 14.5% |
| Carrier routes in EDDM2GO's route library | 42 routes, 20,642 homes (2 of 2 ZIP codes) |
Top facts
- Highest median household income in Eureka: 95503 ($71,855)
- Most residents: 95503 (25,054 people)
- Highest homeownership: 95503 (69.5% own their home)
- Most households with kids: 95503 (24.0% of households)
- Most new movers: 95501 (19.3% moved in last year)
- Youngest median age: 95501 (39.5 years)
- Highest median home value: 95503 ($444,700)
Every ZIP code in Eureka
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 95503 | Eureka | 25,054 | 9,982 | $71,855 | $444,700 | 69.5% | 24.0% | 10.1% | 20 | 10,544 | 4% of its land; mailing city |
| 95501 | Eureka | 22,890 | 9,264 | $54,137 | $412,300 | 41.0% | 22.0% | 19.3% | 22 | 12,081 | 77% of its land; mailing city |
A ZIP code is listed for Eureka when at least 10% of its land lies inside Eureka city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Eureka. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Eureka.
Counties
- Humboldt County — 35 ZIP codes
Nearby cities sharing these ZIP codes
- Myrtletown — 2 ZIP codes
Price a mailing to Eureka ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Eureka, CA?
- 95503 and 95501. A ZIP code is listed for Eureka when at least 10% of its land lies inside Eureka city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Eureka.
- What is the population of Eureka, CA?
- The Census Bureau counts 26,010 residents inside Eureka city limits (ACS 2020–2024). The 2 ZIP codes that serve Eureka hold 47,944 residents in all.
- What is the median household income in Eureka, CA?
- $57,662 inside Eureka city limits, per the Census Bureau. Across its ZIP codes the medians run from $54,137 to $71,855.
- Which Eureka ZIP code has the highest median household income?
- 95503, at $71,855, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Eureka, CA?
- For the 2 of 2 ZIP codes in EDDM2GO's stored route library: 42 carrier routes reaching 20,642 residential and 1,989 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.