Kennesaw Population

1880–2026

39,061

2026 projection

18.2% since 2020 (increase)

010K20K30K40K18801900192019401960198020002020

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 Kennesaw. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202639,061+1,0912.87%
202537,970+2430.64%
202437,727+2,8658.22%
202334,862+1,2183.62%
202233,644+3060.92%
202133,338+3020.91%
202033,036+3521.08%
201932,684-1940.59%
201832,878-2110.64%
201733,089+1830.56%

Showing 10 of 30 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

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

  • Kennesaw+13.8%
  • Georgia+5.3%
  • 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.

Kennesaw Demographics

35.6median age

Median age

Female37.8 yrs
Male34.7 yrs

Adults

27,216
4,581 seniors (65+) · 17% of adults22,635 other adults

Sex

Female 53.8% · 18,632Male 46.2% · 15,973

Population by age

MaleFemale85+ years, male: 22985+ years, female: 31980–84 years, male: 14480–84 years, female: 51675–79 years, male: 27375–79 years, female: 55970–74 years, male: 26970–74 years, female: 67865–69 years, male: 72765–69 years, female: 86760–64 years, male: 1,15260–64 years, female: 82855–59 years, male: 92255–59 years, female: 81150–54 years, male: 86450–54 years, female: 1,34945–49 years, male: 1,11645–49 years, female: 1,18040–44 years, male: 1,12640–44 years, female: 1,58335–39 years, male: 1,11635–39 years, female: 1,03930–34 years, male: 1,02830–34 years, female: 1,64025–29 years, male: 94225–29 years, female: 1,48020–24 years, male: 1,66720–24 years, female: 1,56215–19 years, male: 1,28215–19 years, female: 1,46210–14 years, male: 1,24310–14 years, female: 8565–9 years, male: 9995–9 years, female: 7890–4 years, male: 8740–4 years, female: 1,11485+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 346 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

Kennesaw Income

$83,356median household income

Median household income

$83,356

Half of households earn more, half earn less

Median earnings

$56,137

Typical yearly pay for a worker 25 or older.

Poverty rate

10.3%

About 1 in 10 residents

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

Kennesaw Marital Status

50% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married50%57%44%
Never married33%34%32%
Divorced12%8%16%
Widowed4%2%7%
Separated1%<1%2%

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

Sources

14 sources

Population

American Community Survey, 2024 5-year

Additional sources