Westlake Population

1950–2026

4,711

2026 projection

1.5% since 2020 (decrease)

01K2K3K4K5K6K19501960197019801990200020102020

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 Westlake. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20264,711-521.09%
20254,763+160.34%
20244,747+571.22%
20234,690+100.21%
20224,680-370.78%
20214,717-641.34%
20204,781-661.36%
20194,847+440.92%
20184,803+2876.36%
20174,516-310.68%

Showing 10 of 23 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

Westlake has a population change about the same as Calcasieu Parish, and lower than Louisiana and the U.S.

  • United States+3.1%
  • Louisiana−0.7%
  • Calcasieu Parish−3.7%
  • Westlake−3.8%

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.

Westlake Demographics

40median age

Median age

Female41.1 yrs
Male37.8 yrs

Adults

3,836
1,137 seniors (65+) · 30% of adults2,699 other adults

Sex

Female 50.9% · 2,413Male 49.1% · 2,330

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 47 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

Westlake Income

$68,381median household income

Median household income

$68,381

Half of households earn more, half earn less

Median earnings

$45,462

Typical yearly pay for a worker 25 or older.

Poverty rate

12.1%

About 1 in 8 residents

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

Westlake Marital Status

49% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married49%51%47%
Never married27%24%30%
Divorced9%12%6%
Widowed15%13%17%
Separated<1%1%<1%

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