South El Monte Population

1960–2026

18,852

2026 projection

3.7% since 2020 (decrease)

05K10K15K20K25K1960197019801990200020102020

Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for South El Monte. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202618,852-1110.59%
202518,963-1380.72%
202419,101-660.34%
202319,167-1420.74%
202219,309-1080.56%
202119,417-1500.77%
202019,567+2141.11%
201919,353-70.04%
201819,360-2371.21%
201719,597-2341.18%

Showing 10 of 22 years.

The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.

Growth since 2020, compared

South El Monte has a population change about the same as Los Angeles County, and lower than California and the U.S.

  • United States+3.1%
  • California−0.4%
  • South El Monte−3.0%
  • Los Angeles County−3.0%

Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.

Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.

South El Monte Demographics

37.2median age

Median age

Female38 yrs
Male36.2 yrs

Adults

14,609
2,986 seniors (65+) · 20% of adults11,623 other adults

Sex

Female 50.4% · 9,713Male 49.6% · 9,574

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 193 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

South El Monte Income

$72,990median household income

Median household income

$72,990

Half of households earn more, half earn less

Median earnings

$36,306

Typical yearly pay for a worker 25 or older.

Poverty rate

20.9%

About 1 in 5 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

South El Monte Marital Status

43% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married43%45%40%
Never married44%47%41%
Divorced8%7%8%
Widowed4%1%7%
Separated2%<1%4%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201