Maryland Heights Population

1940–2026

27,403

2026 projection

3.1% since 2020 (decrease)

05K10K15K20K25K30K19401960198020002020

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 Maryland Heights. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202627,403-1560.57%
202527,559-710.26%
202427,630-170.06%
202327,647-1540.55%
202227,801-2560.91%
202128,057-2270.80%
202028,284+320.11%
201928,252+1170.42%
201828,135+1440.51%
201727,991+170.06%

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

Maryland Heights has a population change lower than St. Louis County, Missouri, and the U.S.

  • United States+3.1%
  • Missouri+1.9%
  • St. Louis County−1.2%
  • Maryland Heights−2.5%

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.

Maryland Heights Demographics

35.6median age

Median age

Female35.2 yrs
Male36.3 yrs

Adults

22,506
3,659 seniors (65+) · 16% of adults18,847 other adults

Sex

Female 49.6% · 13,815Male 50.4% · 14,065

Population by age

MaleFemale85+ years, male: 10685+ years, female: 27080–84 years, male: 24380–84 years, female: 24875–79 years, male: 26975–79 years, female: 31670–74 years, male: 49070–74 years, female: 58265–69 years, male: 52765–69 years, female: 60860–64 years, male: 88460–64 years, female: 61955–59 years, male: 80355–59 years, female: 73550–54 years, male: 94750–54 years, female: 71445–49 years, male: 64945–49 years, female: 71240–44 years, male: 80340–44 years, female: 93235–39 years, male: 1,67035–39 years, female: 1,24230–34 years, male: 1,14930–34 years, female: 1,59525–29 years, male: 1,63525–29 years, female: 1,31220–24 years, male: 1,18620–24 years, female: 89215–19 years, male: 43515–19 years, female: 60310–14 years, male: 61910–14 years, female: 6695–9 years, male: 9485–9 years, female: 8270–4 years, male: 7020–4 years, female: 93985+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45005001K1K1.5K1.5K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

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 279 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

Maryland Heights Income

$86,436median household income

Median household income

$86,436

Half of households earn more, half earn less

Median earnings

$65,549

Typical yearly pay for a worker 25 or older.

Poverty rate

4.7%

About 1 in 21 residents

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

Maryland Heights Marital Status

47% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married47%48%46%
Never married37%40%34%
Divorced11%9%13%
Widowed5%3%7%
Separated<1%<1%<1%

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

Sources

14 sources

Population

American Community Survey, 2024 5-year

Additional sources