Marietta Population

1860–2026

64,152

2026 projection

5.2% since 2020 (increase)

010K20K30K40K50K60K70K186018801900192019401960198020002020

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 Marietta. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202664,152+5780.91%
202563,574+2150.34%
202463,359+1420.22%
202363,217+3330.53%
202262,884+1,4262.32%
202161,458+4860.80%
202060,972+310.05%
201960,941+2200.36%
201860,721+80.01%
201760,713+230.04%

Showing 10 of 32 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

Marietta is growing faster than Cobb County and the U.S., and slower than Georgia.

  • Georgia+5.3%
  • Marietta+4.1%
  • Cobb County+3.5%
  • United States+3.1%

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.

Marietta Demographics

34.8median age

Median age

Female36.2 yrs
Male33.5 yrs

Adults

48,920
8,684 seniors (65+) · 18% of adults40,236 other adults

Sex

Female 51.2% · 31,871Male 48.8% · 30,392

Population by age

MaleFemale85+ years, male: 21985+ years, female: 1,19980–84 years, male: 37380–84 years, female: 53775–79 years, male: 56075–79 years, female: 90670–74 years, male: 1,07970–74 years, female: 1,23665–69 years, male: 1,01065–69 years, female: 1,56560–64 years, male: 1,67560–64 years, female: 1,53855–59 years, male: 1,39255–59 years, female: 1,63850–54 years, male: 1,87850–54 years, female: 2,02245–49 years, male: 1,82845–49 years, female: 1,59640–44 years, male: 1,67340–44 years, female: 2,09735–39 years, male: 2,21235–39 years, female: 2,62930–34 years, male: 3,20130–34 years, female: 2,19925–29 years, male: 2,57725–29 years, female: 2,68620–24 years, male: 2,75920–24 years, female: 2,07615–19 years, male: 2,22515–19 years, female: 2,20510–14 years, male: 1,59410–14 years, female: 2,0935–9 years, male: 2,0615–9 years, female: 1,6050–4 years, male: 2,0760–4 years, female: 2,04485+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–41K1K2K2K

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 623 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

Marietta Income

$72,725median household income

Median household income

$72,725

Half of households earn more, half earn less

Median earnings

$50,934

Typical yearly pay for a worker 25 or older.

Poverty rate

12.8%

About 1 in 8 residents

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

Marietta Marital Status

39% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married39%41%37%
Never married42%47%36%
Divorced12%9%16%
Widowed5%1%9%
Separated2%3%2%

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

Sources

14 sources

Population

American Community Survey, 2024 5-year

Additional sources