Ancestry Maps


Irish  ancestry map The ePodunk map shows U.S. cities with the highest percentages of people of ancestry. Learn about cities with genealogy and find in-depth community information about the ancestry cities.


The Irish have come to America since the earliest days of European settlement. Irish settlers moved to Maryland and Virginia in the early 17th century.

The great wave of immigration, however, occurred between 1820 and 1920, when about 4.7 million Irish moved to the U.S. Many were driven from their homeland by the potato famine of the 1840s.

In the 2000 census, 30,524,799 people in the U.S. claimed Irish ancestry.

ePodunk mapped the top communities by percentage of population. The map and the following list show communities in which 1,000 or more people listed an ancestry group, and in which at least 25 percent of those people said they were of Irish ancestry.

The links at left lead to information on other ethnicities.

Community Place type% Irish
Spring Lake, NJborough39.4
Milton, MAtown38.4
Pearl River, NYpopulated place38.0
Avon-by-the-Sea, NJborough36.5
Point Lookout, NYpopulated place36.1
Braintree, MAtown35.6
Collingdale, PAborough35.3
Marshfield, MAtown35.2
Scituate, MAtown35.2
Gloucester City, NJcity34.2
Sea Girt, NJborough34.1
Drexel Hill, PApopulated place33.6
Pembroke, MAtown33.5
Weymouth, MAtown33.1
Abington, MAtown33.0
Norwell, MAtown32.9
Cohasset, MAtown32.8
Spring Lake Heights, NJborough32.7
Clifton Heights, PAborough32.7
Glenolden, PAborough32.6
Folsom, PApopulated place32.5
Rockland, MAtown32.1
Whitman, MAtown32.1
Walpole, MAtown31.9
Eddystone, PAborough31.9
Norwood, MAtown31.8
Aldan, PAborough31.7
Prospect Park, PAborough31.5
Hanson, MAtown31.4
Glenside, PApopulated place31.4
Plandome, NYvillage31.2
Quincy, MAcity31.1
East Lansdowne, PAborough31.1
Hanover, MAtown31.0
Dedham, MAtown31.0
Norwood, PAborough30.9
Blauvelt, NYpopulated place30.7
Stewart Manor, NYvillage30.6
Sea Isle City, NJcity30.5
Hingham, MAtown30.5
Holbrook, MAtown30.4
Springfield, PAtownship30.4
Duxbury, MAtown30.4
Folcroft, PAborough30.4
Brightwaters, NYvillage30.4
Evergreen Park, ILvillage30.3
Peach Lake, NYpopulated place30.3
Hull, MAtown30.1
Woburn, MAcity29.8
Ridley, PAtownship29.8
Medfield, MAtown29.7
Westvale, NYpopulated place29.7
Brooklawn, NJborough29.6
Long Beach, INtown29.6
North Wildwood, NJcity29.4
Tinicum, PAtownship29.4
Port Monmouth, NJpopulated place29.3
Canton, MAtown29.3
Melrose, MAcity29.2
Monmouth Beach, NJborough29.2
Sherman, MEtown29.1
Belford, NJpopulated place29.1
National Park, NJborough29.0
Ridley Park, PAborough28.7
Millis, MAtown28.6
Floral Park, NYvillage28.6
Upper Darby, PAtownship28.6
Winthrop, MAtown28.6
Girardville, PAborough28.5
Haverford, PAtownship28.5
Pocasset, MApopulated place28.5
Stony Point, NYtown28.4
Westwood, MAtown28.4
Avon, MAtown28.4
Rutledge, PAborough28.4
Wrentham, MAtown28.3
Belmar, NJborough28.2
Keansburg, NJborough28.2
Buzzards Bay, MApopulated place28.1
Halifax, MAtown28.1
Collings Lakes, NJpopulated place28.1
Oaklyn, NJborough28.1
Kingston, MAtown28.0
Rockledge, PAborough27.9
Saint Bonaventure, NYpopulated place27.7
Tewksbury, MAtown27.7
Plymouth, MAtown27.6
Durham, NYtown27.6
Nahant, MAtown27.6
East Atlantic Beach, NYpopulated place27.5
West Conshohocken, PAborough27.5
Waretown, NJpopulated place27.4
Avalon, NJborough27.3
Lake Carmel, NYpopulated place27.2
Wilmington, MAtown27.2
Garden City, NYvillage27.2
Highlands, NJborough27.2
Darby, PAtownship27.1
Parkside, PAborough27.0
Foxborough, MAtown26.9
Manasquan, NJborough26.9
Runnemede, NJborough26.9
Wakefield, MAtown26.9
Sayville, NYpopulated place26.9
Bellerose, NYvillage26.8
Norfolk, MAtown26.8
Minerva, NYtown26.7
Charlestown, MDtown26.7
Rockville Centre, NYvillage26.7
Lake Como, NJborough26.7
Audubon Park, NJborough26.6
Billerica, MAtown26.6
Kent, NYtown26.6
Linwood, PApopulated place26.6
East Bridgewater, MAtown26.5
Philo, ILtownship26.5
Hulmeville, PAborough26.5
Munsey Park, NYvillage26.5
Lower Chichester, PAtownship26.5
Clarks Green, PAborough26.5
Greenwood Lake, NYvillage26.5
Williston Park, NYvillage26.4
Merrionette Park, ILvillage26.3
Newtown, PAtownship26.3
Reading, MAtown26.3
Lower, NJtownship26.3
Oak Valley, NJpopulated place26.3
Wall, NJtownship26.3
Marcus Hook, PAborough26.3
West Bridgewater, MAtown26.3
Rumson, NJborough26.3
Medway, MAtown26.3
Dennis Port, MApopulated place26.2
Cascade, IAcity26.2
Easton, MAtown26.1
Green Island, NYtown26.1
Green Island, NYvillage26.1
Maple Glen, PApopulated place26.0
Chevy Chase View, MDtown26.0
Stoneham, MAtown26.0
Sandwich, MAtown26.0
Audubon, NJborough25.8
Halesite, NYpopulated place25.8
Trainer, PAborough25.8
Navesink, NJpopulated place25.8
West Sayville, NYpopulated place25.7
Sharon Hill, PAborough25.7
Wynantskill, NYpopulated place25.7
Marcellus, NYvillage25.6
Bourne, MAtown25.6
Orangetown, NYtown25.6
Brookhaven, PAborough25.5
Abington, PAtownship25.5
Dunstable, MAtown25.4
Greenwich, NYvillage25.4
Hazlet, NJtownship25.4
Bridgewater, MAtown25.4
Hopkinton, MAtown25.3
Amenia, NYtown25.3
Bay Head, NJborough25.3
Chelmsford, MAtown25.3
Narragansett, RItown25.3
Port Ewen, NYpopulated place25.3
Conshohocken, PAborough25.2
Scranton, PAcity25.2
Oakdale, NYpopulated place25.1
Croydon, PApopulated place25.1
Franklin, MAcity25.1
Woodbury Heights, NJborough25.1
Mansfield, MAtown25.1
Brunswick, NYtown25.1
Groveland, MAtown25.0
Essex Fells, NJborough25.0
Haddon Heights, NJborough25.0

Sources: 2000 Census, U.S. Census Bureau; Harvard Encyclopedia of American Ethnic Groups, ed. Stephan Thernstrom; The Irish in America, ed. Michael Coffey; Irish Boston, Michael P. Quinlan; Ancestry: 2000, U.S. Census Bureau (June 2004); ePodunk

Mapping by Daniel Shorter

-- October 2005

Famous Americans of Irish Ancestry:

· Andrew Jackson, president
· John F. Kennedy, president
· Davey Crockett, frontiersman
· Eugene O'Neill, playwright
· William Kennedy, author
· Annie Sullivan, teacher of Helen Keller

Other Irish Ancestry resources:

· American Irish Historical Society
· British and Irish Collections - Library of Congress
· Eire Society
· ePodunk Ireland
· Ireland Collections - Archive of Folk Culture, Library of Congress
· Ireland databases
· Ireland Events and Time Periods - FamilySearch
· Ireland Genealogy Forum
· Irish ancestry message boards
· Irish Ancestral Research Association
· Irish American Cultural Institute
· Irish American Heritage Center
· Irish American Heritage Museum
· Irish Ancestral Research Association
· Irish Cultural Centre of New England
· Irish Emigrant Newsletter
· Immigration & ship records

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