2025

Cities in Sonoma County, CA ranked by Non-Hispanic Asian Population

This list ranks the 9 cities in Sonoma County based on their Non-Hispanic Asian population, as estimated by the United States Census Bureau. It also highlights population changes in these cities over the past five years.
Updated Feb 11, 2025

Top 5 cities with the largest Non-Hispanic Asian population in Sonoma County

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  • 1
    Santa Rosa
    Non-Hispanic Asian population in Santa Rosa is 11,233
    5.51% of Santa Rosa population is Non-Hispanic Asian
  • 2
    Rohnert Park
    Non-Hispanic Asian population in Rohnert Park is 2,623
    4.87% of Rohnert Park population is Non-Hispanic Asian
  • 3
    Petaluma
    Non-Hispanic Asian population in Petaluma is 2,441
    3.56% of Petaluma population is Non-Hispanic Asian
  • 4
    Windsor
    Non-Hispanic Asian population in Windsor is 453
    1.51% of Windsor population is Non-Hispanic Asian
  • 5
    Sebastopol
    Non-Hispanic Asian population in Sebastopol is 423
    5.12% of Sebastopol population is Non-Hispanic Asian

List of 9 cities in Sonoma County, CA by Non-Hispanic Asian Population

View Methodology
Rank by Non-Hispanic Asian Population
City
Non-Hispanic Asian Population
% of Total City Population
% of Total Sonoma County Non-Hispanic Asian Population
5 Year Rank Trend
1 Santa Rosa 11,233 5.51% 63.10%
2 Rohnert Park 2,623 4.87% 14.73%
3 Petaluma 2,441 3.56% 13.71%
4 Windsor 453 1.51% 2.54%
5 Sebastopol 423 5.12% 2.38%
6 Sonoma 204 1.75% 1.15%
7 Cotati 201 2.27% 1.13%
8 160 1.23% 0.90%
9 64 0.61% 0.36%

Methodology

This ranking list is based on data from the American Community Survey (ACS) 5-Year Estimates, conducted by the U.S. Census Bureau. The ACS is one of the most reliable sources for understanding population trends across different locations, and it provides estimates for various racial and ethnic groups at city, county, state and all geography levels down to the Census block group.
This list ranks cities in Sonoma County, CA by their Non-Hispanic Asian population, using the most recent ACS data available.

How the Census Defines Non-Hispanic Asian Population

The U.S. Census Bureau allows people to self-identify their race, meaning individuals can choose one or more racial categories when responding to the survey. In this ranking, we include everyone who identifies as Non-Hispanic Asian, whether alone or in combination with another race.
Here are a few important things to know about how race is reported:
  • Some people identify as Non-Hispanic Asian alone, while others identify as Non-Hispanic Asian along with another race (such as Non-Hispanic Asian and White).
  • Hispanic / Latino origin is reported separately from race, so someone can be both Hispanic and Non-Hispanic Asian .
  • We’ve used the “Non-Hispanic Asian alone or in combination” category unless noted otherwise, which gives a broader picture of the Non-Hispanic Asian population in each area.

How We Ranked the Data

This ranking is based on the total number of people who identified as Non-Hispanic Asian alone or in combination in cities. To provide additional context, we’ve also included two key percentages:
  1. % of Total City Population – This shows what percentage of the total state population identifies as Non-Hispanic Asian .
  2. % of Total Sonoma County Non-Hispanic Asian Population – This tells us how much of the entire U.S. Non-Hispanic Asian population lives in that state.
To keep things simple, all population numbers have been rounded to the nearest whole number, and percentages are rounded to one decimal place. Because of rounding, some percentages may not add up to exactly 100%.

Things to Keep in Mind

Like all survey-based data, ACS estimates come with some limitations. Here are a few things to be aware of:
  • In places with very small Non-Hispanic Asian populations, the numbers may not be reported at all due to privacy protections or sampling variability in the survey.
  • Since the ACS is based on a sample, the numbers are estimates, not exact counts. That means they may slightly differ from other sources like the decennial U.S. Census.
  • Cities that don’t have any reported Non-Hispanic Asian population are not included in the ranking but are listed separately below for reference.
This ranking is meant to provide a clear, data-driven look at where Non-Hispanic Asian populations are most concentrated while keeping the numbers easy to understand.

Sources

U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.