Czech Population in Madison County, IL by City : 2025 Ranking & Insights

The Czech population in Madison County, IL is reported at 1,288 residents, according to recent U.S. Census estimates. Several cities in Madison County - including Edwardsville, Collinsville, Maryville, and others - contribute to the Czech population, but the total county figure of 1,288 indicates additional presence beyond municipal borders. The sections below explores how Czech residents are distributed in Illinois and the U.S.

Top 5 cities with the largest Czech population in Madison County

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  • 1
    Edwardsville
    Czech population in Edwardsville is 184
    0.69% of Edwardsville population is Czech
  • 2
    Collinsville
    Czech population in Collinsville is 140
    0.58% of Collinsville population is Czech
  • 3
    Maryville
    Czech population in Maryville is 89
    1.07% of Maryville population is Czech
  • 4
    Glen Carbon
    Czech population in Glen Carbon is 65
    0.48% of Glen Carbon population is Czech
  • 5
    Alton
    Czech population in Alton is 58
    0.23% of Alton population is Czech

Overview of Czech population in Madison County

  • Population Count and Percentage: American Community Survey data document Madison County with 1,288 Czech residents (0.49% of 264,631 total county population), positioning the jurisdiction at the 93rd percentile nationally among counties and 93rd percentile within Illinois for Czech population concentrations, despite absolute population figures.
  • Comparison to State and National Averages: Census Bureau's ACS data documents Madison County's Czech demographic representation of 0.49%, exceeding the national average of 0.38% while remaining below Illinois's elevated state average of 0.68%, placing the county above national concentration levels while below state demographic averages.
  • Share of Total State Population: Official American Community Survey show Madison County's 1,288 Czech residents constitute 1.5% of Illinois's total Czech population of 86,244.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey document Madison County contains $dem_per_sqmi Czech Americans per square mile, above Illinois's average of 1.6 per square mile, indicating marginally stronger community presence than most state counties.
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24 Cities in Madison County Ranked by Czech Population

View Methodology
ACS data [1] show Czech populations distributed across multiple cities in the county, led by Edwardsville, Collinsville, Maryville, and Glen Carbon. The table below provides additional context, including total population, population density, and demographic distributions, based on current ACS data for 24 incorporated cities included in this analysis*.
cities in Madison County, IL ranked by Czech population count
Rank by Czech Population
City
Czech Population
% of Total City Population
% of Total Madison County Czech Population
5 Year Rank Trend
1 Edwardsville 184 0.69% 14.29%
2 Collinsville 140 0.58% 10.87%
3 Maryville 89 1.07% 6.91%
4 Glen Carbon 65 0.48% 5.05%
5 Alton 58 0.23% 4.50%
6 Pontoon Beach 50 0.82% 3.88%
7 Godfrey 39 0.22% 3.03%
8 30 2.99% 2.33%
9 29 0.27% 2.25%
10 23 0.09% 1.79%
11 21 0.20% 1.63%
12 19 0.68% 1.48%
13 17 0.17% 1.32%
14 6 0.37% 0.47%
15 4 0.34% 0.31%
16 3 0.21% 0.23%
16 3 0.38% 0.23%
17 0 - -
17 0 - -
17 0 - -
17 0 - -
17 0 - -
17 0 - -
17 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 Madison County, IL by their Czech population, using the most recent ACS data available.

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

How We Ranked the Data

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

Sources

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