Swiss Population in St. Louis County, MO by City : 2025 Ranking & Insights

The Swiss population in St. Louis County, MO is reported at 3,348 residents, according to recent U.S. Census estimates. Several cities in St. Louis County - including Webster Groves, Chesterfield, Wildwood, and others - contribute to the Swiss population, but the total county figure of 3,348 indicates additional presence beyond municipal borders. The sections below explores how Swiss residents are distributed in Missouri and the U.S.

Top 5 cities with the largest Swiss population in St. Louis County

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  • 1
    Webster Groves
    Swiss population in Webster Groves is 521
    2.19% of Webster Groves population is Swiss
  • 2
    Chesterfield
    Swiss population in Chesterfield is 228
    0.46% of Chesterfield population is Swiss
  • 3
    Wildwood
    Swiss population in Wildwood is 220
    0.63% of Wildwood population is Swiss
  • 4
    Sunset Hills
    Swiss population in Sunset Hills is 133
    1.46% of Sunset Hills population is Swiss
  • 5
    Maryland Heights
    Swiss population in Maryland Heights is 116
    0.41% of Maryland Heights population is Swiss

Overview of Swiss population in St. Louis County

  • Population Count and Percentage: American Community Survey data document St. Louis County with 3,348 Swiss residents (0.34% of 996,618 total county population), positioning the jurisdiction at the 98th percentile nationally among counties and 99th percentile within Missouri for Swiss population concentrations, despite absolute population figures.
  • Comparison to State and National Averages: Census Bureau's ACS data documents St. Louis County's Swiss demographic representation of 0.34%, corresponding to Missouri's state average while exceeding the national average of 0.26%, placing the county at state demographic averages while above national concentration levels.
  • Share of Total State Population: Official American Community Survey indicate St. Louis County's 3,348 Swiss residents constitute 16.4% of Missouri's total Swiss population of 20,356, placing the county among jurisdictions with the highest demographic concentrations, with 16.4% of all Missouri Swiss Americans residing within county boundaries.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey data shows St. Louis County maintains 6.6 Swiss Americans per square mile, representing twenty-two and one-quarter times Missouri's average of 0.3 per square mile, establishing the county as an exceptional concentration center comparable to major metropolitan demographic areas.
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78 Cities in St. Louis County Ranked by Swiss Population

View Methodology
ACS data [1] show Swiss populations distributed across multiple cities in the county, led by Webster Groves, Chesterfield, Wildwood, and Sunset Hills. The table below provides additional context, including total population, population density, and demographic distributions, based on current ACS data for 78 incorporated cities included in this analysis*.
cities in St. Louis County, MO ranked by Swiss population count
Rank by Swiss Population
City
Swiss Population
% of Total City Population
% of Total St. Louis County Swiss Population
5 Year Rank Trend
1 Webster Groves 521 2.19% 15.56%
2 Chesterfield 228 0.46% 6.81%
3 Wildwood 220 0.63% 6.57%
4 Sunset Hills 133 1.46% 3.97%
5 Maryland Heights 116 0.41% 3.46%
6 Ellisville 114 1.15% 3.41%
7 Des Peres 99 1.08% 2.96%
8 89 0.99% 2.66%
9 83 0.45% 2.48%
10 78 3.01% 2.33%
11 72 1.18% 2.15%
12 65 0.19% 1.94%
13 63 0.36% 1.88%
13 63 0.35% 1.88%
14 47 1.00% 1.40%
15 43 0.15% 1.28%
15 43 0.53% 1.28%
16 39 0.34% 1.16%
17 37 0.30% 1.11%
17 37 4.04% 1.11%
18 35 0.38% 1.05%
19 33 0.06% 0.99%
20 32 0.28% 0.96%
20 32 0.20% 0.96%
21 28 0.11% 0.84%
22 27 0.37% 0.81%
23 26 0.30% 0.78%
24 19 0.06% 0.57%
25 18 0.46% 0.54%
26 16 0.39% 0.48%
27 15 0.22% 0.45%
28 14 0.52% 0.42%
28 14 0.11% 0.42%
29 11 0.06% 0.33%
29 11 0.30% 0.33%
30 8 0.42% 0.24%
31 7 0.48% 0.21%
32 6 0.37% 0.18%
33 5 1.06% 0.15%
33 5 0.82% 0.15%
33 5 0.73% 0.15%
34 4 0.31% 0.12%
34 4 0.36% 0.12%
35 3 0.17% 0.09%
35 3 0.13% 0.09%
36 2 0.14% 0.06%
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37 0 - -
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37 0 - -
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37 0 - -
37 0 - -
37 0 - -
37 0 - -
37 0 - -
37 0 - -
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37 0 - -
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37 0 - -
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37 0 - -
37 0 - -
37 0 - -
37 0 - -
37 0 - -
37 0 - -
37 0 - -
37 0 - -
37 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 St. Louis County, MO by their Swiss population, using the most recent ACS data available.

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

How We Ranked the Data

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

Sources

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