Checked
Largest Irish American Communities
About 31,613,628 Irish Americans live in the U.S. The largest community by number of people is in New York, NY (372,527).
- Irish Americans in the U.S.
- 31,613,628
- ACS 2020-2024
- Share of U.S. population
- 9.44%
- Largest state
- California
- 2,301,721 people
- Largest city
- New York, NY
- 372,527 people
Cities with the most Irish Americans
Cities, towns and census-designated places, by number of people
Swipe the table sideways to see more columns.
| # | City | People | Share of residents |
|---|---|---|---|
| 1 | New York, NY | 372,527 | 4.4% |
| 2 | Chicago, IL | 197,290 | 7.3% |
| 3 | Philadelphia, PA | 151,253 | 9.6% |
| 4 | Los Angeles, CA | 145,255 | 3.8% |
| 5 | Phoenix, AZ | 122,272 | 7.4% |
| 6 | San Diego, CA | 105,833 | 7.6% |
| 7 | Columbus, OH | 88,477 | 9.7% |
| 8 | Austin, TX | 87,695 | 9.0% |
| 9 | Boston, MA | 87,634 | 13.1% |
| 10 | Seattle, WA | 83,590 | 11.1% |
| 11 | Houston, TX | 83,467 | 3.6% |
| 12 | Denver, CO | 81,438 | 11.3% |
| 13 | Jacksonville, FL | 78,107 | 8.0% |
| 14 | Portland, OR | 76,965 | 12.0% |
| 15 | Louisville, KY | 71,822 | 11.4% |
| 16 | Indianapolis, IN | 70,096 | 7.9% |
| 17 | San Antonio, TX | 68,040 | 4.6% |
| 18 | San Francisco, CA | 63,331 | 7.6% |
| 19 | Omaha, NE | 62,220 | 12.7% |
| 20 | Charlotte, NC | 60,293 | 6.7% |
| 21 | Dallas, TX | 57,883 | 4.4% |
| 22 | Colorado Springs, CO | 57,202 | 11.7% |
| 23 | Fort Worth, TX | 55,870 | 5.8% |
| 24 | Nashville, TN | 55,442 | 8.0% |
| 25 | Washington, DC | 55,299 | 8.1% |
| 26 | Oklahoma City, OK | 54,222 | 7.8% |
| 27 | Kansas City, MO | 50,180 | 9.8% |
| 28 | Las Vegas, NV | 48,850 | 7.4% |
| 29 | Virginia Beach, VA | 48,607 | 10.7% |
| 30 | Minneapolis, MN | 46,807 | 11.0% |
Counties with the most Irish Americans
Swipe the table sideways to see more columns.
| # | County | People | Share of residents |
|---|---|---|---|
| 1 | Cook County, IL | 432,999 | 8.4% |
| 2 | Maricopa County, AZ | 400,177 | 8.8% |
| 3 | Los Angeles County, CA | 370,162 | 3.8% |
| 4 | Middlesex County, MA | 300,318 | 18.3% |
| 5 | San Diego County, CA | 255,722 | 7.8% |
| 6 | Suffolk County, NY | 247,260 | 16.2% |
| 7 | Allegheny County, PA | 208,956 | 16.9% |
| 8 | King County, WA | 196,924 | 8.6% |
| 9 | Harris County, TX | 195,678 | 4.0% |
| 10 | Orange County, CA | 190,775 | 6.0% |
| 11 | Norfolk County, MA | 175,576 | 24.0% |
| 12 | Montgomery County, PA | 164,018 | 18.9% |
| 13 | Nassau County, NY | 161,822 | 11.6% |
| 14 | Clark County, NV | 158,933 | 6.8% |
| 15 | Essex County, MA | 152,156 | 18.7% |
| 16 | Philadelphia County, PA | 151,253 | 9.6% |
| 17 | Franklin County, OH | 149,529 | 11.2% |
| 18 | Erie County, NY | 149,073 | 15.7% |
| 19 | Worcester County, MA | 148,126 | 17.1% |
| 20 | Plymouth County, MA | 147,518 | 27.6% |
About this data
Counts people who reported this ancestry (table B04006). People can report up to two ancestries, so the same person may be counted in two groups.
Figures are American Community Survey 2020-2024 5-year estimates and have margins of error, which are larger for small places.
Frequently asked questions
- Which U.S. city has the most Irish Americans?
- New York, NY has the largest number of Irish Americans, about 372,527 people, followed by Chicago, IL (197,290) and Philadelphia, PA (151,253).
- Which city has the highest share of Irish Americans?
- Among places with at least 10,000 residents, Milton, MA has the highest share at 35.4% of residents.
- Which state has the most Irish Americans?
- California has the most, with about 2,301,721 people. The top three states (California, New York, Pennsylvania) are home to 20% of all Irish Americans.
- How many Irish Americans live in the U.S.?
- About 31,613,628 people, according to the American Community Survey 2020-2024 5-year estimates.