Grass Valley Population

1850–2026

14,037

2026 projection

0.1% since 2020 (increase)

05K10K15K20K186018801900192019401960198020002020

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 Grass Valley. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202614,037+20.01%
202514,035-580.41%
202414,093+30.02%
202314,090-120.09%
202214,102-1300.91%
202114,232+2161.54%
202014,016+420.30%
201913,974+1330.96%
201813,841+1190.87%
201713,722+1541.14%

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

Grass Valley has a population change about the same as Nevada County and California, and lower than the U.S.

  • United States+3.1%
  • Grass Valley−0.3%
  • Nevada County−0.4%
  • 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.

Grass Valley Demographics

49.6median age

Median age

Female56.4 yrs
Male38.2 yrs

Adults

11,528
4,483 seniors (65+) · 39% of adults7,045 other adults

Sex

Female 54.9% · 7,753Male 45.1% · 6,360

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 141 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

Grass Valley Income

$51,764median household income

Median household income

$51,764

Half of households earn more, half earn less

Median earnings

$46,339

Typical yearly pay for a worker 25 or older.

Poverty rate

22.1%

About 1 in 5 residents

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

Grass Valley Marital Status

30% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married30%36%26%
Never married32%41%26%
Divorced21%14%27%
Widowed14%7%19%
Separated3%2%3%

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