Petaluma Population

1860–2026

59,609

2026 projection

0.3% since 2020 (decrease)

010K20K30K40K50K60K70K186018801900192019401960198020002020

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 Petaluma. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202659,609-790.13%
202559,688+2500.42%
202459,438+4080.69%
202359,030+1240.21%
202258,906-3890.66%
202159,295-4810.80%
202059,776-2240.37%
201960,000-7031.16%
201860,703+7361.23%
201759,967-590.10%

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

Petaluma has a population change higher than Sonoma County and California, and lower than the U.S.

  • United States+3.1%
  • Petaluma−0.1%
  • Sonoma 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.

Petaluma Demographics

45.3median age

Median age

Female47 yrs
Male44.2 yrs

Adults

48,465
13,071 seniors (65+) · 27% of adults35,394 other adults

Sex

Female 51% · 30,205Male 49% · 29,042

Population by age

MaleFemale85+ years, male: 62185+ years, female: 99180–84 years, male: 53480–84 years, female: 74975–79 years, male: 1,23275–79 years, female: 1,50570–74 years, male: 1,63270–74 years, female: 1,97265–69 years, male: 1,71265–69 years, female: 2,12360–64 years, male: 2,34860–64 years, female: 2,25255–59 years, male: 2,05855–59 years, female: 2,03050–54 years, male: 2,26450–54 years, female: 2,09845–49 years, male: 1,80345–49 years, female: 1,95540–44 years, male: 2,15240–44 years, female: 1,95235–39 years, male: 1,97435–39 years, female: 1,81330–34 years, male: 1,87330–34 years, female: 2,14025–29 years, male: 1,46725–29 years, female: 1,50220–24 years, male: 1,40320–24 years, female: 1,13515–19 years, male: 1,65015–19 years, female: 1,52710–14 years, male: 1,48410–14 years, female: 1,5195–9 years, male: 1,5965–9 years, female: 1,6340–4 years, male: 1,2390–4 years, female: 1,30885+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 592 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

Petaluma Income

$115,430median household income

Median household income

$115,430

Half of households earn more, half earn less

Median earnings

$68,625

Typical yearly pay for a worker 25 or older.

Poverty rate

6.5%

About 1 in 15 residents

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

Petaluma Marital Status

52% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married52%54%50%
Never married29%33%26%
Divorced13%10%17%
Widowed5%3%7%
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