Browse / United States / California / McArthur
McArthur
CaliforniaCDP
Total population
346
Air quality index
Demographic figures from US Census Bureau · ACS 5-year estimates. Overview below cites Wikipedia and may reference a different year.
City facts
Overview
As a small census-designated community in California, United States, McArthur occupies its own corner of the country. The settlement sits at 41.042°, -121.405°, a temperate location in the northern hemisphere. Around 346 people are recorded as living there in the most recent open data. Open solar datasets indicate about 1,775 kWh/m² of solar irradiance per year, combined with sunshine for roughly 69% of daylight hours. Climatically, locations at this latitude tend to experience four distinct seasons with warm summers and cold winters. That works out to roughly 131 residents per square kilometre — a relatively low population density. Time-zone records list it under Q2204. Open data lists it as at a notable elevation of 1009 m, covering a small area of about 2.631245 km². Meteorological summaries report average highs near 68.1°F and lows near 42.3°F, together with about 25.6 in of annual precipitation (a moderate total). The remainder of this page draws on open public data to describe the area's demographics, climate, environment and nearby amenities.
Summary composed automatically from structured open data on this page. See our Terms for details.
History & geography
Demographics & economy
Geography
Coordinates & boundaries from the US Census TIGER/Line shapefiles.
Climate
10-year averages from ERA5 reanalysis (Open-Meteo).
Current forecast
Forecast for McArthur, CA from NOAA NWS API.
Air quality
Current readings from Open-Meteo Air Quality API (Copernicus CAMS European reanalysis).
Industrial & pollution facilities
Natural hazard risk
Health (adults)
Age-adjusted prevalence estimates from CDC PLACES (latest release).
Walkability
Amenities nearby
Wildlife & biodiversity
Most-observed species
- Red-tailed HawkButeo jamaicensis (Gmelin, 1788) · Aves902
- Great Blue/Cocoi HeronArdea herodias Linnaeus, 1758 · Aves738
- Brewer's BlackbirdEuphagus cyanocephalus (Wagler, 1829) · Aves723
- Canada Goose (canadensis Group)Branta canadensis (Linnaeus, 1758) · Aves690
- MallardAnas platyrhynchos Linnaeus, 1758 · Aves687
- Pied-billed GrebePodilymbus podiceps (Linnaeus, 1758) · Aves668
- Red-winged BlackbirdAgelaius phoeniceus (Linnaeus, 1766) · Aves632
- American RobinTurdus migratorius Linnaeus, 1766 · Aves629
Citizen-science & research observations from the Global Biodiversity Information Facility (GBIF).
Schools
Largest nearby schools
- Fall River ElementaryElementary · Fall River Mills · 282 students · 18.8:1 ratio
- Fall River Junior-Senior HighHigh · McArthur · 275 students · 21.2:1 ratio
- Fall River Community DayHigh · McArthur · 12 students · 12:1 ratio
- Soldier Mountain High (Continuation)High · McArthur · 11 students · 11:1 ratio
- Fall River Elementary Community DayElementary · Fall River Mills
Public K–12 schools within ~10 mi from Urban Institute Education Data Portal (NCES Common Core of Data, 2022).
Earthquake history
Most recent
- M 2.51 — 2026-05-2726 km NE of Viola, CA
- M 2.68 — 2026-05-2626 km NE of Viola, CA
- M 3.42 — 2026-05-2626 km NE of Viola, CA
- M 2.5 — 2026-04-0814 km NNW of Susanville, CA
- M 2.91 — 2026-03-0814 km NNW of Susanville, CA
- M 2.52 — 2026-02-123 km NE of Almanor, CA
Events from the USGS Earthquake Catalog (global) (FDSN Event Web Service).
Photos
Sights & places nearby
Notable people from here


People born within ~10 km, from Wikidata (CC0). Click any name for their Wikipedia article.
Nearby places in California
Geography & sun
Elevation, sunrise/sunset and daylight from Open-Meteo. Solar climatology from NASA POWER.
Nearby airports
Public attention
Pageview totals from the Wikimedia Pageviews API.
Books about McArthur

Search results from Open Library.
Recent natural events nearby
Ground air-quality sensors
Recently spotted species









Research-grade observations from iNaturalist (within ~15 mi).
Nearest stream gauge
Live readings from USGS NWIS · measured 2026-05-31 18:00 UTC.
Events
Gallery
Geotagged photos within ~6 miles of McArthur, from Wikimedia Commons contributors.
Photos via Wikimedia Commons — see each image page for license & attribution.
Sources
- • Open-Meteo (ERA5 reanalysis)
- • NOAA National Weather Service
- • Wikimedia Commons
- • Wikidata
- • Open-Meteo Air Quality (CAMS)
- • USGS Earthquake Catalog (global feed)
- • USGS NWIS (water data)
- • NCES via Urban Institute Education Data Portal
- • GBIF (Global Biodiversity Information Facility)
- • iNaturalist
- • CDC PLACES
- • Open-Elevation
- • Open-Meteo / sunrise-sunset.org
- • Wikipedia Pageviews API
- • Open Library
- • Wikidata SPARQL (CC0) — population, area, elevation, inception, head of government, Commons image