Armenian Population in Sonoma County, CA by City : 2025 Ranking & Insights

The Armenian population in Sonoma County, CA is reported at 775 residents, according to recent U.S. Census estimates. Several cities in Sonoma County - including Santa Rosa, Sebastopol, Petaluma, and others - contribute to the Armenian population, but the total county figure of 775 indicates additional presence beyond municipal borders. The sections below explores how Armenian residents are distributed in California and the U.S.

Top 5 cities with the largest Armenian population in Sonoma County

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  • 1
    Santa Rosa
    Armenian population in Santa Rosa is 249
    0.14% of Santa Rosa population is Armenian
  • 2
    Sebastopol
    Armenian population in Sebastopol is 112
    1.50% of Sebastopol population is Armenian
  • 3
    Petaluma
    Armenian population in Petaluma is 111
    0.19% of Petaluma population is Armenian
  • 4
    Sonoma
    Armenian population in Sonoma is 82
    0.76% of Sonoma population is Armenian
  • 5
    Healdsburg
    Armenian population in Healdsburg is 40
    0.35% of Healdsburg population is Armenian

Overview of Armenian population in Sonoma County

  • Population Count and Percentage: American Community Survey data document Sonoma County with 775 Armenian residents (0.16% of 485,642 total county population), positioning the jurisdiction at the 97th percentile nationally among counties and 70th percentile within California for Armenian population concentrations, despite absolute population figures.
  • Comparison to State and National Averages: Census Bureau's ACS data documents Sonoma County's Armenian demographic representation of 0.16%, exceeding the national average of 0.14% while remaining below California's elevated state average of 0.64%, placing the county above national concentration levels while below state demographic averages.
  • Share of Total State Population: Official American Community Survey data indicates Sonoma County contains 775 Armenian residents, representing less than 1% of California's total Armenian population of 249,406.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey indicate Sonoma County's density of 0.49 Armenian Americans per square mile remains below California's average of 1.6 per square mile, with relatively sparse community distribution compared to state demographic concentrations.
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9 Cities in Sonoma County Ranked by Armenian Population

View Methodology
ACS data [1] show Armenian populations distributed across multiple cities in the county, led by Santa Rosa, Sebastopol, Petaluma, and Sonoma. The table below provides additional context, including total population, population density, and demographic distributions, based on current ACS data for 9 incorporated cities included in this analysis*.
cities in Sonoma County, CA ranked by Armenian population count
Rank by Armenian Population
City
Armenian Population
% of Total City Population
% of Total Sonoma County Armenian Population
5 Year Rank Trend
1 Santa Rosa 249 0.14% 32.13%
2 Sebastopol 112 1.50% 14.45%
3 Petaluma 111 0.19% 14.32%
4 Sonoma 82 0.76% 10.58%
5 Healdsburg 40 0.35% 5.16%
6 Rohnert Park 29 0.07% 3.74%
7 Cloverdale 0 - -
7 0 - -
7 0 - -
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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 city in Sonoma County, CA by their Armenian population, using the most recent ACS data available.

How the Census defines Armenian population

The U.S. Census Bureau allows people to self-identify their ancestry, meaning individuals can write upto ancestries when responding to the survey. In this ranking, we include everyone who identifies as having Armenian ancestry, whether alone or in combination with another ancestry.
Here are a few important things to know about how ancestry is reported:
  • Some people identify as Armenian alone, while others identify as Armenian along with another race (such as Armenian and German).
  • We’ve used the “Armenian alone or in any combination” category unless noted otherwise, which gives a broader picture of the Armenian population in each area.

How We Ranked the Data

This ranking is based on the total number of people who identified as Armenian alone or in combination in city. 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 Armenian .
  2. % of Total Sonoma County Armenian Population – This tells us how much of the entire U.S. Armenian 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 Armenian 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.
  • City that don’t have any reported Armenian 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 Armenian populations are most concentrated while keeping the numbers easy to understand.

Sources

  1. 2019-2023 5-Year Estimates.
  2. 2023.