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Charter Oak, California.

A community in Los Angeles County, with no city government of its own. Zillow publishes no home prices for it: see Los Angeles County’s.

Living in Charter Oak, Los Angeles County, California

Charter Oak, in Los Angeles County, had 9,739 people in the 2020 census. Half its households earn more than $88,393 a year and half less, against $90,112 across Los Angeles County; 8% of its people live below the poverty line. 59% of its homes are lived in by their owners and 41% are rented. Unemployment in Los Angeles County was 4.5% in September 2026, and the county had about as many jobs in 2025 as the year before. The most residents work in schools and health care, then professional services.

People 9,739 in the 2020 census; median age 39.6
Household income $88,393 the median, give or take $7,529 · Los Angeles County: $90,112
Unemployment 4.5% Los Angeles County, September 2026; 5.9% a year before
Homes 59% lived in by their owners; 41% rented
  • 3,078households
  • 32%of adults have a degree
  • 8%below the poverty line
  • 27 mintypical commute
  • 13%work from home

What residents work in

  • Schools, hospitals and social care30%
  • Professional and business services13%
  • Shops (retail)12%
  • Manufacturing10%
  • Building trades9%
  • Banks, insurance and property8%

Employed residents by industry, from the Census survey. Los Angeles County had 4,525,460 jobs in 2025, about as many as the year before (Bureau of Labor Statistics).

Weather through the year

Average daily high and low for each month: coldest in December, 67° and 42°; warmest in August, 92° and 63° 40° 50° 60° 70° 80° 90° 100° J F M A M J J A 92° 63° S O N D 67° 42°
Average daily high and low for each month: coldest in December, 67° and 42°; warmest in August, 92° and 63° 40° 50° 60° 70° 80° 90° 100° J F M A M J J A 92° 63° S O N D 67° 42°

Coldest in December, with highs near 67° and lows near 42°; warmest in August, with highs near 92° and lows near 63°. About 14 inches of rain a year, and little or no snow.

Average daily high and low, 1991–2020, at the Pomona/fairplex weather station, 5 miles away (NOAA).

Largest workplaces in Los Angeles County

  1. Los Angeles UnifiedSchool district55,137FTE
  2. University of California-Los AngelesUniversity or college28,794
  3. University of Southern CaliforniaUniversity or college17,428
  4. Cedars-sinai Medical CenterGeneral hospital17,201FTE
  5. Ronald Reagan UclaGeneral hospital8,588FTE
  6. Northrop Grumman SystemsGuided missile and space vehicle propulsion unit and propulsion unit parts manufacturing8,567
  7. Universal Studios HollywoodTheme parks, amusement7,857
  8. Space Exploration TechnologiesGuided missile and space vehicle manufacturing7,577

Staff on average in 2025, as each workplace reported it to OSHA with its injury records: 5,360 workplaces with 20 or more staff, 1,023,254 people in all across the county; Charter Oak has two of its own. School districts come from the Common Core of Data (NCES, 2023–24), colleges from IPEDS (NCES, 2023–24) and hospitals from their Medicare cost reports (CMS, 2023); FTE marks full-time equivalent staff. Not listed: many offices and banks, which need not report to OSHA; military bases, whose staff OPM withholds; and, in about half the states, city and county governments.

Natural hazards

  1. EarthquakesRelatively high
  2. Inland floodingRelatively high

FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms in Charter Oak’s census tracts, against the rest of the country; all of them together, relatively moderate. It is meant for planning, not a substitute for a local risk assessment or a flood map: FEMA’s index.

From the U.S. Census Bureau’s 2020 census and its American Community Survey (2020–2024 five-year estimates), and the Bureau of Labor Statistics. A survey, so each figure has a margin of error, and figures it is not sure of are left out. More on Los Angeles County.