Ranking of Pennsylvania Counties By Population with Czech Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 42.80K people in Pennsylvania with Czech ancestry. Among all Pennsylvania counties, Allegheny County had the highest population with Czech ancestry (6.77K), followed by Westmoreland County (3.36K), and Montgomery County (2.44K).
The chart and table below shows the top 10 counties with high number of people with Czech ancestry.
You can see similar information for other states and for other ancestry groups in Pennsylvania.
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Related Topics: Pennsylvania ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of Pennsylvania Counties By Population with Czech Ancestry in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Allegheny County | 6769 |
| 2 | Westmoreland County | 3358 |
| 3 | Montgomery County | 2444 |
| 4 | Philadelphia County | 2334 |
| 5 | Bucks County | 2306 |
| 6 | Chester County | 2147 |
| 7 | Erie County | 1685 |
| 8 | Butler County | 1260 |
| 9 | Fayette County | 1232 |
| 10 | Washington County | 1198 |
| 11 | Lehigh County | 1075 |
| 12 | Beaver County | 1056 |
| 13 | Delaware County | 1029 |
| 14 | Cambria County | 934 |
| 15 | Lancaster County | 921 |
| 16 | Luzerne County | 874 |
| 17 | Berks County | 788 |
| 18 | Cumberland County | 723 |
| 19 | Monroe County | 706 |
| 20 | Northampton County | 664 |
| 21 | York County | 650 |
| 22 | Lackawanna County | 526 |
| 23 | Schuylkill County | 523 |
| 24 | Indiana County | 448 |
| 25 | Centre County | 444 |
| 26 | Pike County | 413 |
| 27 | Mercer County | 401 |
| 28 | Lawrence County | 390 |
| 29 | Dauphin County | 377 |
| 30 | Lebanon County | 373 |
| 31 | Somerset County | 360 |
| 32 | Blair County | 335 |
| 33 | Armstrong County | 331 |
| 34 | Clearfield County | 314 |
| 35 | Crawford County | 276 |
| 36 | Carbon County | 272 |
| 37 | Franklin County | 212 |
| 38 | Northumberland County | 191 |
| 39 | Susquehanna County | 177 |
| 40 | McKean County | 175 |
| 41 | Adams County | 165 |
| 42 | Columbia County | 161 |
| 43 | Jefferson County | 141 |
| 44 | Bradford County | 138 |
| 45 | Elk County | 128 |
| 46 | Huntingdon County | 123 |
| 47 | Greene County | 111 |
| 48 | Lycoming County | 109 |
| 49 | Clarion County | 108 |
| 50 | Sullivan County | 102 |
| 50 | Tioga County | 102 |
| 51 | Snyder County | 91 |
| 52 | Union County | 79 |
| 53 | Wyoming County | 72 |
| 54 | Perry County | 71 |
| 55 | Warren County | 70 |
| 56 | Wayne County | 69 |
| 57 | Venango County | 68 |
| 58 | Potter County | 61 |
| 59 | Bedford County | 35 |
| 60 | Fulton County | 27 |
| 61 | Montour County | 26 |
| 62 | Clinton County | 18 |
| 63 | Mifflin County | 12 |
| 64 | Forest County | 11 |
| 65 | Juniata County | 7 |
| 66 | Cameron County | 5 |