Czech Population in Milwaukee County, WI by City : 2025 Ranking & Insights

The Czech population in Milwaukee County, WI is recorded at 6,188 residents, based on the latest U.S. Census estimates. Every city in Milwaukee County reports some Czech residents. With no unincorporated share evident in the totals, this points to a completely city-based population. The sections below explores how Czech residents are distributed in Wisconsin and the U.S.

Top 5 cities with the largest Czech population in Milwaukee County

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  • 1
    Milwaukee
    Czech population in Milwaukee is 2,745
    0.48% of Milwaukee population is Czech
  • 2
    West Allis
    Czech population in West Allis is 639
    1.07% of West Allis population is Czech
  • 3
    Wauwatosa
    Czech population in Wauwatosa is 616
    1.29% of Wauwatosa population is Czech
  • 4
    Greenfield
    Czech population in Greenfield is 430
    1.15% of Greenfield population is Czech
  • 5
    Franklin
    Czech population in Franklin is 311
    0.87% of Franklin population is Czech

Overview of Czech population in Milwaukee County

  • Population Count and Percentage: American Community Survey data document Milwaukee County with 6,188 Czech residents (0.67% of 927,656 total county population), positioning the jurisdiction at the 99th percentile nationally among counties and 97th percentile within Wisconsin for Czech population concentrations, despite absolute population figures.
  • Comparison to State and National Averages: Census Bureau's ACS data documents Milwaukee County's Czech demographic representation of 0.67%, exceeding the national average of 0.38% while remaining below Wisconsin's elevated state average of 1.3%, placing the county above national concentration levels while below state demographic averages.
  • Share of Total State Population: Official American Community Survey data documents Milwaukee County with 6,188 Czech residents, representing 8.3% of Wisconsin's total Czech population of 74,961.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey data shows Milwaukee County maintains 25.6 Czech Americans per square mile, representing eighteen and a half times Wisconsin's average of 1.4 per square mile, establishing the county as an exceptional concentration center comparable to major metropolitan demographic areas.
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19 Cities in Milwaukee County Ranked by Czech Population

View Methodology
ACS data [1] confirm Czech populations in every incorporated city in the county, with the largest counts in Milwaukee, West Allis, Wauwatosa, and Greenfield. The table below provides detailed figures, including total population, density measures, and demographic distributions, based on the current ACS data for all 19 incorporated cities included in this analysis*.
cities in Milwaukee County, WI ranked by Czech population count
Rank by Czech Population
City
Czech Population
% of Total City Population
% of Total Milwaukee County Czech Population
5 Year Rank Trend
1 Milwaukee 2,745 0.48% 44.36%
2 West Allis 639 1.07% 10.33%
3 Wauwatosa 616 1.29% 9.95%
4 Greenfield 430 1.15% 6.95%
5 Franklin 311 0.87% 5.03%
6 Glendale 270 2.06% 4.36%
7 Oak Creek 265 0.73% 4.28%
8 171 0.83% 2.76%
9 113 0.90% 1.83%
9 113 0.83% 1.83%
10 104 0.71% 1.68%
11 93 0.63% 1.50%
12 85 1.11% 1.37%
13 84 1.25% 1.36%
14 82 0.46% 1.33%
15 29 0.71% 0.47%
16 14 0.32% 0.23%
16 14 0.15% 0.23%
17 10 0.61% 0.16%
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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 Milwaukee County, WI 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 Milwaukee 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.