Rocklin Population

1870–2026

77,733

2026 projection

8.6% since 2020 (increase)

020K40K60K80K18801900192019401960198020002020

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 Rocklin. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202677,733+9121.19%
202576,821+1,3871.84%
202475,434+1,4912.02%
202373,943+6980.95%
202273,245+4480.62%
202172,797+1,1961.67%
202071,601+6740.95%
201970,927+1,9752.86%
201868,952+2,6944.07%
201766,258+2,3633.70%

Showing 10 of 31 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

Rocklin is growing faster than California and the U.S., and slower than Placer County.

  • Placer County+8.9%
  • Rocklin+7.0%
  • United States+3.1%
  • California−0.4%

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.

Rocklin Demographics

38.4median age

Median age

Female39.1 yrs
Male37.8 yrs

Adults

55,274
10,481 seniors (65+) · 19% of adults44,793 other adults

Sex

Female 50.5% · 37,064Male 49.5% · 36,263

Population by age

MaleFemale85+ years, male: 60385+ years, female: 1,08580–84 years, male: 59180–84 years, female: 76675–79 years, male: 69675–79 years, female: 1,00770–74 years, male: 1,21470–74 years, female: 1,48665–69 years, male: 1,39265–69 years, female: 1,64160–64 years, male: 1,94560–64 years, female: 1,81655–59 years, male: 2,35655–59 years, female: 2,42750–54 years, male: 2,83550–54 years, female: 2,45345–49 years, male: 2,45645–49 years, female: 2,60140–44 years, male: 2,82640–44 years, female: 2,81535–39 years, male: 2,82335–39 years, female: 2,72630–34 years, male: 1,99230–34 years, female: 2,12025–29 years, male: 1,91825–29 years, female: 1,91020–24 years, male: 2,38420–24 years, female: 2,29415–19 years, male: 2,73815–19 years, female: 3,11410–14 years, male: 2,87810–14 years, female: 2,5495–9 years, male: 2,3105–9 years, female: 2,3160–4 years, male: 2,3060–4 years, female: 1,93885+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 733 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

Rocklin Income

$124,168median household income

Median household income

$124,168

Half of households earn more, half earn less

Median earnings

$78,883

Typical yearly pay for a worker 25 or older.

Poverty rate

5.6%

About 1 in 18 residents

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

Rocklin Marital Status

55% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married55%58%53%
Never married30%33%28%
Divorced9%6%11%
Widowed5%2%7%
Separated2%<1%3%

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

Sources

14 sources

Population

American Community Survey, 2024 5-year

Additional sources