Ranking of New Jersey Counties By Population with Slovak Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 31.24K people in New Jersey with Slovak ancestry. Among all New Jersey counties, Middlesex County had the highest population with Slovak ancestry (4.18K), followed by Ocean County (2.98K), and Monmouth County (2.56K).

The chart and table below shows the top 10 counties with high number of people with Slovak ancestry.

You can see similar information for other states and for other ancestry groups in New Jersey.

Data Source: US Census Bureau.
Ranking of New Jersey Counties By Population with Slovak Ancestry in 2021
Middlesex County
Ocean County
Monmouth County
Morris County
Somerset County
Union County
Burlington County
Bergen County
Mercer County
Passaic County
Ranking of New Jersey Counties By Population with Slovak Ancestry in 2021
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Rank County Population
1 Middlesex County 4180
2 Ocean County 2977
3 Monmouth County 2560
4 Morris County 2403
5 Somerset County 2352
6 Union County 2281
7 Burlington County 2264
8 Bergen County 1998
9 Mercer County 1761
10 Passaic County 1230
11 Gloucester County 1133
12 Hunterdon County 968
13 Hudson County 889
14 Camden County 811
15 Warren County 778
16 Sussex County 770
17 Essex County 686
18 Atlantic County 645
19 Cape May County 330
20 Cumberland County 122
21 Salem County 100