Derby Population

1890–2026

26,803

2026 projection

4.6% since 2020 (increase)

05K10K15K20K25K30K1900192019401960198020002020

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 Derby. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202626,803+1970.74%
202526,606+1010.38%
202426,505+2380.91%
202326,267+3481.34%
202225,919+1360.53%
202125,783+1580.62%
202025,625+1740.68%
201925,451+2971.18%
201825,154+1,1184.65%
201724,036+680.28%

Showing 10 of 29 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

Derby is growing faster than Sedgwick County, Kansas, and the U.S.

  • Derby+3.5%
  • United States+3.1%
  • Sedgwick County+2.6%
  • 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.

Derby Demographics

35.9median age

Median age

Female38.4 yrs
Male34.9 yrs

Adults

19,097
4,342 seniors (65+) · 23% of adults14,755 other adults

Sex

Female 50.6% · 13,188Male 49.4% · 12,874

Population by age

MaleFemale85+ years, male: 8185+ years, female: 50880–84 years, male: 13980–84 years, female: 40675–79 years, male: 48875–79 years, female: 42170–74 years, male: 43270–74 years, female: 59565–69 years, male: 62365–69 years, female: 64960–64 years, male: 62860–64 years, female: 64955–59 years, male: 77555–59 years, female: 93050–54 years, male: 76850–54 years, female: 69545–49 years, male: 84245–49 years, female: 56440–44 years, male: 57240–44 years, female: 86135–39 years, male: 1,05035–39 years, female: 1,01630–34 years, male: 67830–34 years, female: 93925–29 years, male: 85025–29 years, female: 84820–24 years, male: 95920–24 years, female: 68115–19 years, male: 78215–19 years, female: 77110–14 years, male: 1,15810–14 years, female: 8615–9 years, male: 1,0435–9 years, female: 1,1290–4 years, male: 1,0060–4 years, female: 66585+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 261 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

Derby Income

$84,112median household income

Median household income

$84,112

Half of households earn more, half earn less

Median earnings

$56,293

Typical yearly pay for a worker 25 or older.

Poverty rate

6%

About 1 in 17 residents

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

Derby 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%62%54%
Never married24%28%21%
Divorced11%8%14%
Widowed6%2%10%
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