Greek Population in California by County : 2025 Ranking & Insights

According to the latest U.S. Census estimates, California is home to 120,649 Greek residents. Los Angeles County contains the largest Greek community with 26,339 individuals, followed by San Diego County (12,049), Orange County (10,784), and several other counties contributing to this statewide total. The remaining difference may reflect Greek populations in lower-population counties not listed above or minor reporting adjustments in the census data. This demographic breakdown ranks all counties in California by their Greek population, offering insights into community patterns across the state.

Top 5 counties with the largest Greek population in California

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  • 1
    Los Angeles County
    Greek population in Los Angeles County is 26,339
    0.27% of Los Angeles County population is Greek
  • 2
    San Diego County
    Greek population in San Diego County is 12,049
    0.37% of San Diego County population is Greek
  • 3
    Orange County
    Greek population in Orange County is 10,784
    0.34% of Orange County population is Greek
  • 4
    Santa Clara County
    Greek population in Santa Clara County is 6,201
    0.33% of Santa Clara County population is Greek
  • 5
    Alameda County
    Greek population in Alameda County is 5,542
    0.34% of Alameda County population is Greek

Overview of Greek population in California

  • Population Count and Percentage: American Community Survey data indicate California contains 120,649 Greek residents (0.31% of 39.2 million total state population), positioning the state at the 97th percentile nationally among U.S. states for Greek population concentrations.
  • Comparison to State and National Averages: U.S. Census surveys show California's Greek demographic representation of 0.31% remains below the national average of 0.36%, positioning the state below typical U.S. demographic distribution patterns.
  • Share of Total National Population: Official American Community Survey records show California hosts 120,649 Greek residents, representing 10% of the nation's total Greek population of 1.2 million, establishing the state as a significant demographic concentration center within national boundaries.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey data indicates California's density of 0.77 Greek Americans per square mile exceeds the national average of 0.34 per square mile by two and one-quarter times, establishing the state as a significant concentration center for Greek demographic communities.
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55 Counties in California Ranked by Greek Population

View Methodology
American Community Survey data [1] show Greek population in California distributed across multiple counties, led by Los Angeles County, San Diego County, Orange County, and Santa Clara County, while several other counties recorded no residents identified as Americans of full or partial Greek ancestry. The table below provides broader statistics, including total population figures, density measures, and demographic distributions based on current ACS data for all counties included in this analysis*.
counties in California ranked by Greek population count
Rank by Greek Population
County
Greek Population
% of Total County Population
% of Total California Greek Population
5 Year Rank Trend
1 Los Angeles County 26,339 0.27% 21.83%
2 San Diego County 12,049 0.37% 9.99%
3 Orange County 10,784 0.34% 8.94%
4 Santa Clara County 6,201 0.33% 5.14%
5 Alameda County 5,542 0.34% 4.59%
6 San Mateo County 5,374 0.72% 4.45%
7 Sacramento County 5,305 0.33% 4.40%
8 4,930 0.20% 4.09%
9 4,903 0.42% 4.06%
10 4,370 0.52% 3.62%
11 3,850 0.46% 3.19%
12 2,929 0.13% 2.43%
13 2,627 0.33% 2.18%
14 2,328 0.42% 1.93%
15 2,308 0.48% 1.91%
16 2,229 0.86% 1.85%
17 2,191 0.53% 1.82%
18 1,854 0.18% 1.54%
19 1,556 0.35% 1.29%
20 1,334 0.30% 1.11%
21 1,120 0.12% 0.93%
22 1,043 0.54% 0.86%
23 1,039 0.37% 0.86%
24 1,035 0.39% 0.86%
25 798 0.18% 0.66%
26 667 0.37% 0.55%
27 542 0.26% 0.45%
28 527 1.15% 0.44%
29 499 1.22% 0.41%
30 485 0.58% 0.40%
31 468 0.21% 0.39%
32 440 0.32% 0.36%
33 368 0.27% 0.31%
34 297 0.68% 0.25%
35 243 0.05% 0.20%
36 228 0.22% 0.19%
36 228 0.42% 0.19%
37 222 0.33% 0.18%
38 207 0.07% 0.17%
39 202 0.20% 0.17%
40 175 0.19% 0.15%
41 157 0.10% 0.13%
42 116 0.18% 0.10%
43 115 0.08% 0.10%
44 59 0.09% 0.05%
45 50 0.27% 0.04%
46 44 0.15% 0.04%
47 41 0.21% 0.03%
48 39 0.14% 0.03%
49 34 0.02% 0.03%
50 26 0.20% 0.02%
51 10 0.05% 0.01%
52 6 0.02% 0.01%
53 0 - -
53 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 county in California by their Greek population, using the most recent ACS data available.

How the Census defines Greek 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 Greek 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 Greek alone, while others identify as Greek along with another race (such as Greek and German).
  • We’ve used the “Greek alone or in any combination” category unless noted otherwise, which gives a broader picture of the Greek population in each area.

How We Ranked the Data

This ranking is based on the total number of people who identified as Greek alone or in combination in county. To provide additional context, we’ve also included two key percentages:
  1. % of Total County Population – This shows what percentage of the total state population identifies as Greek .
  2. % of Total California Greek Population – This tells us how much of the entire U.S. Greek 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 Greek 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.
  • County that don’t have any reported Greek 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 Greek populations are most concentrated while keeping the numbers easy to understand.

Sources

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