Largest Italian population, US counties · 2010
US counties ranked by the number of residents who are Italian ancestry, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. Suffolk County, New York leads at 427,649. 3,076 counties qualify in total. New York carries 8 of the top 25 entries.
UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES
Frequently asked
Which county has the highest italian population?
Suffolk County, New York ranks #1 with 427,649 (2010 American Community Survey).
What are the top 5 counties by italian population?
Suffolk County, New York, Cook County, Illinois, Nassau County, New York, Los Angeles County, California, Middlesex County, Massachusetts.
How many counties are in this ranking?
3,076 counties qualify after filtering for population minimums and data availability. The ranking covers 2010 ACS 5-year data.
How is italian population measured?
Number of residents who are Italian ancestry (Ancestry, ACS detailed tables). Source: US Census Bureau, American Community Survey 5-year estimates (2010).