Frederick Population

1910–2026

19,065

2026 projection

31.4% since 2020 (increase)

05K10K15K20K192019401960198020002020

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 Frederick. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202619,065+8244.52%
202518,241+2301.28%
202418,011+3011.70%
202317,710+5593.26%
202217,151+1,3658.65%
202115,786+1,2738.77%
202014,513+8566.27%
201913,657+8376.53%
201812,820+5914.83%
201712,229+4663.96%

Showing 10 of 27 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

Frederick is growing faster than Weld County, Colorado, and the U.S.

  • Frederick+24.0%
  • Weld County+14.2%
  • Colorado+3.9%
  • 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.

Frederick Demographics

36.4median age

Median age

Female35.1 yrs
Male37 yrs

Adults

12,233
1,922 seniors (65+) · 16% of adults10,311 other adults

Sex

Female 49.8% · 8,287Male 50.2% · 8,364

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 167 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

Frederick Income

$129,460median household income

Median household income

$129,460

Half of households earn more, half earn less

Median earnings

$69,227

Typical yearly pay for a worker 25 or older.

Poverty rate

3.3%

About 1 in 30 residents

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

Frederick Marital Status

66% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married66%66%65%
Never married23%24%21%
Divorced8%8%9%
Widowed3%1%5%
Separated<1%<1%<1%

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