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Alta Sierra

CaliforniaCDP

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Total population

7,361

Median home value

$563,700

39%

Bachelor's+

Median income

$105,603

Alta Sierra$106k
National$74k
Weather65°F · Clear
Coordinates39.13°, -121.05°

Demographic figures from US Census Bureau · ACS 5-year estimates. Overview below cites Wikipedia and may reference a different year.

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City facts

Overview

Alta Sierra is a small census-designated community that lies in California, United States. Coordinates of 39.126°, -121.049° situate Alta Sierra in the warm-temperate zone of the northern hemisphere. Recent open-data figures place its population at about 7,361. Total area is recorded as about 21.6 km². Based on its warm temperate position, residents likely encounter warm summers and cool winters. The location receives about 1,867 kWh/m² of solar irradiance per year and sunshine for roughly 73% of daylight hours. Resident density is around 341 per km², indicating a medium-density urban fabric. Open-data panels below dive into population trends, climate normals, environmental indicators and nearby places.

Summary composed automatically from structured open data on this page. See our Terms for details.

History & geography

Demographics & economy

Median age
55
Median home value
$563,700
Housing units
3,233
Poverty rate
6.3%
Unemployment
3%

Race & ethnicity

White
88.9%
Black
0%
Asian
1.6%
Hispanic
7.6%

Source: US Census Bureau — American Community Survey, 5-year estimates.

Geography

Latitude
39.1262
Longitude
-121.0491
Water area
0.02 mi²
View on OpenStreetMap

Coordinates & boundaries from the US Census TIGER/Line shapefiles.

Climate

Current forecast

Tonight
65°F
Clear
Thursday
93°F
Sunny
Thursday Night
66°F
Mostly Cloudy then Chance Light Rain
Friday
85°F
Chance Light Rain
Friday Night
60°F
Mostly Clear
Saturday
86°F
Sunny

Forecast for Alta Sierra, CA from NOAA NWS API.

Air quality

Industrial & pollution facilities

Natural hazard risk

Health (adults)

High blood pressure
31.5%
Diabetes
10.7%
Adult obesity
35.3%
Binge drinking
16.7%
Adult smoking
10.3%
No leisure activity
16%

Age-adjusted prevalence estimates from CDC PLACES (latest release).

Walkability

Amenities nearby

Wildlife & biodiversity

Schools

Earthquake history

Quakes ≥ 2.5 (25 yrs, 62 mi)
325
Largest magnitude
4.77
Largest event
2005-06-26

Most recent

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

Browse all places in California

Geography & sun

Avg solar (kWh/m²/day)
5.11
Annual solar (kWh/m²)
1,867

Elevation, sunrise/sunset and daylight from Open-Meteo. Solar climatology from NASA POWER.

Nearby airports

Public attention

Books about Alta Sierra

Search results from Open Library.

Recent natural events nearby

Wildfires, storms and other events from NASA EONET (last 12 months, within 250 mi).

Ground air-quality sensors

Recently spotted species

Research-grade observations from iNaturalist (within ~15 mi).

Nearest stream gauge

Site
NF AMERICAN R A NORTH FORK DAM CA
Distance
13.2 mi
Streamflow
48.4 cfs
Gage height
0.36 ft

Live readings from USGS NWIS · measured 2026-08-26 21:15 UTC.

Events

Sources

  • US Census Bureau (ACS 5-year estimates)
  • NOAA National Weather Service
  • Wikidata
  • USGS Earthquake Catalog (global feed)
  • USGS NWIS (water data)
  • iNaturalist
  • CDC PLACES
  • Open-Meteo / sunrise-sunset.org
  • Open Library
  • NASA EONET