Mexican Population in Missouri by County : 2025 Ranking & Insights

According to the latest U.S. Census estimates, the Mexican population in Missouri totals 195,110. Jackson County contains the largest Mexican community with 55,102 residents, followed by St. Louis County (22,133), Clay County (12,006), and others contributing to this statewide total. This demographic analysis ranks all counties in Missouri by their Mexican populations, offering insights into local community distribution and broader settlement trends.

Top 5 counties with the largest Mexican population in Missouri

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  • 1
    Jackson County
    Mexican population in Jackson County is 55,102
    7.68% of Jackson County population is Mexican
  • 2
    St. Louis County
    Mexican population in St. Louis County is 22,133
    2.22% of St. Louis County population is Mexican
  • 3
    Clay County
    Mexican population in Clay County is 12,006
    4.70% of Clay County population is Mexican
  • 4
    St. Louis city
    Mexican population in St. Louis city is 9,207
    3.14% of St. Louis city population is Mexican
  • 5
    St. Charles County
    Mexican population in St. Charles County is 9,124
    2.23% of St. Charles County population is Mexican

Overview of Mexican population in Missouri

  • Population Count and Percentage: American Community Survey documents Missouri with 195,110 Mexican residents (3.2% of 6.2 million total state population), ranking the state at the 47th percentile nationally among U.S. jurisdictions for Mexican demographic representation.
  • Comparison to State and National Averages: U.S. Census surveys show Missouri's Mexican demographic representation of 3.2% remains below the national average of 11.3%, positioning the state below typical U.S. demographic distribution patterns.
  • Share of Total National Population: Official American Community Survey data indicates Missouri contains 195,110 Mexican residents, representing less than 1% of the nation's total Mexican population of 37.4 million, constituting a minimal fraction of the national demographic community relative to the state's overall population size.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey data shows Missouri's density of 2.8 Mexican Americans per square mile remains below the national average of 10.6 per square mile, indicating relatively sparse distribution compared to national demographic concentrations.
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115 Counties in Missouri Ranked by Mexican Population

View Methodology
American Community Survey data [1] show Mexican population in Missouri distributed across multiple counties, led by Jackson County, St. Louis County, Clay County, and St. Louis city, while several other counties recorded no residents identified as Americans of full or partial Mexican descent. 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 Missouri ranked by Mexican population count
Rank by Mexican Population
County
Mexican Population
% of Total County Population
% of Total Missouri Mexican Population
5 Year Rank Trend
1 Jackson County 55,102 7.68% 28.24%
2 St. Louis County 22,133 2.22% 11.34%
3 Clay County 12,006 4.70% 6.15%
4 St. Louis city 9,207 3.14% 4.72%
5 St. Charles County 9,124 2.23% 4.68%
6 Greene County 8,224 2.73% 4.22%
7 Boone County 5,524 2.97% 2.83%
8 5,312 4.30% 2.72%
9 4,857 4.47% 2.49%
10 3,493 4.17% 1.79%
11 3,384 3.09% 1.73%
12 3,189 7.38% 1.63%
13 3,087 1.35% 1.58%
14 2,689 4.99% 1.38%
15 2,596 6.76% 1.33%
16 2,491 4.19% 1.28%
17 2,474 2.71% 1.27%
18 2,390 4.24% 1.23%
19 2,260 6.49% 1.16%
20 2,159 9.19% 1.11%
21 2,064 2.68% 1.06%
22 2,006 7.22% 1.03%
23 1,579 2.91% 0.81%
24 1,426 6.15% 0.73%
25 1,375 1.31% 0.70%
26 1,286 1.56% 0.66%
27 1,181 1.92% 0.61%
28 971 2.24% 0.50%
29 890 2.70% 0.46%
30 866 2.39% 0.44%
31 787 5.14% 0.40%
32 784 1.76% 0.40%
33 745 1.87% 0.38%
34 706 1.94% 0.36%
35 672 1.01% 0.34%
36 671 1.49% 0.34%
37 659 1.74% 0.34%
38 577 2.34% 0.30%
39 567 1.34% 0.29%
40 559 1.39% 0.29%
41 552 9.35% 0.28%
42 522 2.26% 0.27%
43 455 2.12% 0.23%
43 455 1.44% 0.23%
44 415 1.65% 0.21%
45 412 1.68% 0.21%
46 403 2.65% 0.21%
47 399 1.40% 0.20%
48 395 1.57% 0.20%
49 371 1.16% 0.19%
50 370 1.88% 0.19%
51 362 1.58% 0.19%
52 329 1.90% 0.17%
53 299 1.65% 0.15%
54 296 1.39% 0.15%
55 267 1.34% 0.14%
56 252 1.66% 0.13%
57 242 1.67% 0.12%
58 240 1.49% 0.12%
59 239 0.96% 0.12%
60 238 1.65% 0.12%
61 235 2.39% 0.12%
62 230 1.94% 0.12%
63 224 0.79% 0.11%
64 222 1.17% 0.11%
65 220 0.99% 0.11%
66 196 1.11% 0.10%
67 191 1.71% 0.10%
68 190 0.91% 0.10%
69 187 1.17% 0.10%
70 184 0.98% 0.09%
71 166 1.64% 0.09%
71 166 1.76% 0.09%
72 165 1.15% 0.08%
73 155 0.92% 0.08%
74 148 1.23% 0.08%
75 147 1.79% 0.08%
76 131 0.56% 0.07%
77 119 1.41% 0.06%
78 116 1.30% 0.06%
78 116 1.34% 0.06%
78 116 1.02% 0.06%
79 113 1.19% 0.06%
80 111 0.75% 0.06%
81 108 3.08% 0.06%
82 102 0.93% 0.05%
83 99 0.78% 0.05%
84 96 0.89% 0.05%
85 94 1.78% 0.05%
86 90 1.93% 0.05%
87 87 0.82% 0.04%
87 87 1.14% 0.04%
88 82 0.94% 0.04%
89 78 0.67% 0.04%
89 78 0.66% 0.04%
90 74 0.84% 0.04%
91 72 0.69% 0.04%
92 68 0.37% 0.03%
93 63 0.75% 0.03%
94 51 0.84% 0.03%
95 49 0.79% 0.03%
96 47 0.90% 0.02%
97 38 0.38% 0.02%
97 38 0.63% 0.02%
98 36 0.42% 0.02%
99 32 0.24% 0.02%
100 29 0.68% 0.01%
101 24 0.36% 0.01%
102 16 0.19% 0.01%
103 12 0.16% 0.01%
104 11 0.15% 0.01%
105 7 0.36% 0.00%
106 5 0.12% 0.00%
107 4 0.09% 0.00%
108 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 Missouri 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 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 Mexican .
  2. % of Total Missouri 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.
  • County 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.