Mexican Population in San Francisco County, CA by City : 2025 Ranking & Insights

The Mexican population in San Francisco County, CA is reported at 65,170 residents, according to the latest census estimates - all of whom reside within San Francisco, the only incorporated city in San Francisco County included in this analysis*. With no presence recorded outside San Francisco, the community''s footprint is fully concentrated within the city''s municipal limits. The analysis below takes a closer look at how Mexican residents are situated within San Francisco County and how this compares to other counties across California.

Top 5 cities with the largest Mexican population in San Francisco County

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  • 1
    San Francisco
    Mexican population in San Francisco is 65,170
    7.79% of San Francisco population is Mexican

Overview of Mexican population in San Francisco County

  • Population Count and Percentage: American Community Survey data shows San Francisco County contains 65,170 Mexican residents (7.8% of 836,321 total county population), ranking the jurisdiction at the 97th percentile nationally among counties and 52nd percentile within California for Mexican demographic concentrations across both absolute and proportional measures.
  • Comparison to State and National Averages: Census Bureau's ACS data indicate San Francisco County's Mexican population of 7.8% remains below California's state average of 32.3% and the national average of 11.3%, placing the county below demographic benchmarks across multiple geographic scales.
  • Share of Total State Population: Official American Community Survey data indicates San Francisco County contains 65,170 Mexican residents, representing less than 1% of California's total Mexican population of 12.7 million.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey data shows San Francisco County maintains 1,395.5 Mexican Americans per square mile, representing just over seventeen times California's average of 81.2 per square mile, establishing the county as an exceptional concentration center comparable to major metropolitan demographic areas.
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Mexican Population in San Francisco County — San Francisco

View Methodology
American Community Survey data [1] indicate Mexican population in San Francisco County, CA at 65,170 residents — all of whom reside within San Francisco, the only incorporated city included in this analysis*. The table below provides broader statistics, including total population figures, density measures, and demographic distributions based on current ACS data.
cities in San Francisco County, CA ranked by Mexican population count
Rank by Mexican Population
City
Mexican Population
% of Total City Population
% of Total San Francisco County Mexican Population
5 Year Rank Trend
1 San Francisco 65,170 7.79% 100.00%
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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 San Francisco County, CA by their Mexican population, using the most recent ACS data available.

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

How We Ranked the Data

This ranking is based on the total number of people who identified as Mexican 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 Mexican .
  2. % of Total San Francisco County Mexican Population – This tells us how much of the entire U.S. Mexican 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 Mexican 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 Mexican 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 Mexican populations are most concentrated while keeping the numbers easy to understand.

Sources

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