Ranking of New Jersey Counties By Percentage of Population with Czech Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 21.82K people in New Jersey with Czech ancestry (0.24% of New Jersey population). Among all New Jersey counties, Hunterdon County had the highest percentage of its population with Czech ancestry (0.54%), followed by Ocean County (0.40%), and Somerset County (0.38%).
The chart and table below shows the top 10 counties with high percentage of its population having Czech ancestry.
You can see similar information for other states and for other ancestry groups in New Jersey.
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Related Topics: New Jersey ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of New Jersey Counties By Percentage of Population with Czech Ancestry in 2021
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| Rank | County | Percentage of Pop. (%) |
|---|---|---|
| 1 | Hunterdon County | 0.54 |
| 2 | Ocean County | 0.40 |
| 3 | Somerset County | 0.38 |
| 3 | Sussex County | 0.38 |
| 4 | Morris County | 0.37 |
| 5 | Burlington County | 0.34 |
| 5 | Warren County | 0.34 |
| 6 | Monmouth County | 0.29 |
| 7 | Camden County | 0.25 |
| 7 | Mercer County | 0.25 |
| 8 | Bergen County | 0.23 |
| 9 | Cape May County | 0.21 |
| 10 | Middlesex County | 0.20 |
| 10 | Passaic County | 0.20 |
| 11 | Gloucester County | 0.18 |
| 12 | Union County | 0.17 |
| 13 | Essex County | 0.13 |
| 14 | Salem County | 0.09 |
| 15 | Atlantic County | 0.08 |
| 15 | Cumberland County | 0.08 |
| 15 | Hudson County | 0.08 |