Gardner Population

1880–2026

26,739

2026 projection

14.8% since 2020 (increase)

05K10K15K20K25K30K18801900192019401960198020002020

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 Gardner. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202626,739+5852.24%
202526,154+3851.49%
202425,769+4391.73%
202325,330+1,2345.12%
202224,096+1560.65%
202123,940+6532.80%
202023,287+3091.34%
201922,978+2901.28%
201822,688+4021.80%
201722,286+2901.32%

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

Gardner is growing faster than Johnson County, Kansas, and the U.S.

  • Gardner+11.6%
  • Johnson County+4.2%
  • United States+3.1%
  • Kansas+1.3%

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.

Gardner Demographics

30.7median age

Median age

Female30.8 yrs
Male30.7 yrs

Adults

16,836
2,049 seniors (65+) · 12% of adults14,787 other adults

Sex

Female 49.5% · 12,149Male 50.5% · 12,377

Population by age

MaleFemale85+ years, male: 2185+ years, female: 9180–84 years, male: 10280–84 years, female: 5775–79 years, male: 16575–79 years, female: 21870–74 years, male: 27670–74 years, female: 45165–69 years, male: 34965–69 years, female: 31960–64 years, male: 72760–64 years, female: 51255–59 years, male: 58855–59 years, female: 51850–54 years, male: 53150–54 years, female: 54845–49 years, male: 78245–49 years, female: 58340–44 years, male: 1,00340–44 years, female: 1,15935–39 years, male: 83135–39 years, female: 85230–34 years, male: 1,08930–34 years, female: 1,05725–29 years, male: 1,06525–29 years, female: 96220–24 years, male: 58720–24 years, female: 73415–19 years, male: 1,02115–19 years, female: 82510–14 years, male: 1,12910–14 years, female: 1,0265–9 years, male: 9305–9 years, female: 1,2150–4 years, male: 1,1810–4 years, female: 1,02285+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45005001K1K

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 245 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

Gardner Income

$96,818median household income

Median household income

$96,818

Half of households earn more, half earn less

Median earnings

$57,116

Typical yearly pay for a worker 25 or older.

Poverty rate

6.3%

About 1 in 16 residents

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

Gardner Marital Status

58% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married58%57%59%
Never married29%32%25%
Divorced10%10%10%
Widowed3%1%4%
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