ZIP guide — public records, sourced

95521: Arcata, CA

The public records behind ZIP 95521 — the registry count for the ZIP itself, and the FBI-reported crime record for Humboldt County, its county. Every figure sourced and dated. For a specific home, run the free preview: the flood determination and the full record check happen at the address, live.

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18
Registrants in ZIP 95521
1 in 1,178
Residents per registrant
2,642
Humboldt County offenses reported, 2024
19.96
Humboldt County crimes per 1,000 / yr

Registered sex offenders in 95521

18 registrants are listed for ZIP 95521 — a ratio of 1 per 1,178 residents.

County baseline — Humboldt County overall: 1 per 449 residents.

Counts describe density, not danger by themselves; proximity to a specific address is what matters. This page publishes the count only — never names, photos, or registrant addresses. For the address-level check, search the official registry: the California Megan's Law Website (California Department of Justice), or every state at once through the federal NSOPW site.

One honest caveat: this count comes from a compilation of the state registry’s published data. Where a registry also lists work or school locations, a compilation count can read higher than a residence-only official count — the official search above is the deciding check for a specific address.

Source: City-Data compilation of California state registry data — count as of 2026-11-04. Compilation pulled 2026-11-04.

Compilation page for this ZIP: https://www.city-data.com/soz/soz-95521.html.

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Reported crime in Humboldt County — FBI 2024

FBI crime data is collected by law-enforcement agency, not by ZIP — so this is the record for Humboldt County, the county ZIP 95521 belongs to, labeled at county grain. Humboldt County is this ZIP’s county in the Census Bureau’s 2020 ZCTA-to-county crosswalk.

Agencies in Humboldt County reported 2,642 offenses to the FBI in 2024 — 630 violent and 2,012 property — a reported-crime rate of 19.96 per 1,000 residents (violent 475.9 and property 1,519.9 per 100,000).

Offense (2024, reported)Count
Murder2
Rape99
Robbery119
Aggravated assault410
Burglary366
Larceny-theft1,438
Motor vehicle theft208
Arson57

Coverage: 12 of 12 law-enforcement agencies assigned to this county reported at least one month of 2024 offense data to the FBI; 11 reported all 12 months. Counts are reported offenses only (FBI Return A / Arson master files), assigned whole to each agency's primary county; they are not adjusted for non-reporting agencies.

Source: FBI Crime Data Explorer (CDE) — UCR master files: Return A (Offenses Known and Clearances by Arrest) and Arson, data year 2024 — pulled 2026-11-04. These are offenses reported to law enforcement, not convictions, and not a verdict on any street or address.

Humboldt County and California context

Humboldt County is the records county for ZIP 95521. The county seat is Eureka. Its 2024 Census Bureau population estimate is 132,380. The files that decide a purchase — assessor, recorder, permits, flood — live at the county and state level:

Flood risk is decided at the structure, not the ZIP — two houses on the same street can sit in different FEMA zones. The free preview at the top of this page runs the official FEMA determination at the exact address, live.

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Sources for this page

  • Sex-offender registry: City-Data compilation of California state registry data (count as of 2026-11-04); official search: California Megan's Law Website, California Department of Justice.
  • Crime: FBI Crime Data Explorer (CDE) UCR master files — Return A and Arson, data year 2024, pulled 2026-11-04; offenses assigned to each reporting agency’s primary county.
  • ZIP-to-county: U.S. Census Bureau, 2020 Census ZCTA5-to-County relationship file, pulled 2026-11-04; primary county = largest share of the ZCTA’s land area.
  • County context: population — U.S. Census Bureau 2024 Population Estimates Program; county seat — Wikidata (CC0), checked 2026-11-04.

Figures are shown as published by their sources on the dates noted and are refreshed as the underlying data updates. This page is research, not legal or financial advice.