RANKING · 2020 CENSUS · 500 SHOWN OF 3,134

Largest Irish population, US counties · 2020

US counties ranked by the number of residents who are Irish ancestry, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV.

All statesAll rankings

SAME RANKING BYCities States Metros

RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPIRISH POPULATIONVS 2000

501Guadalupe County, TXTX201,11113,057–

502Catawba County, NCNC170,17213,020–

503Comanche County, OKOK122,15813,002–

504Franklin County, MAMA70,69812,981–

505Yamhill County, OROR110,02412,973–

506Macon County, ILIL99,30012,961–

507Pottawattamie County, IAIA92,99612,909–

508Ashtabula County, OHOH96,71312,900–

509Delaware County, ININ113,10612,884–

510Randolph County, NCNC149,51612,823–

511Miami County, OHOH112,63412,710–

512Stearns County, MNMN164,11012,706–

513Geauga County, OHOH95,67612,691–

514Matanuska-Susitna, AKAK118,66612,665–

515Cochise County, AZAZ126,33212,660–

516Tompkins County, NYNY104,04712,658–

517Hardin County, KYKY113,48212,584–

518Indiana County, PAPA82,87812,550–

519Alamance County, NCNC186,17712,535–

520Gregg County, TXTX126,09512,434–

521Salem County, NJNJ66,28012,423–

522Adams County, PAPA107,59412,376–

523Wyandotte County, KSKS170,59712,357–

524Taylor County, TXTX150,07712,353–

525Madison County, ININ135,08812,331–

526Laramie County, WYWY102,93812,329–

527Allen County, OHOH100,88112,309–

528Carver County, MNMN114,37912,296–

529Woodbury County, IAIA106,64912,290–

530Clinton County, NYNY78,13812,289–

531Richland County, OHOH124,89312,188–

532Dallas County, IAIA118,45712,177–

533Newport News, VAVA183,23012,137–

534Sullivan County, NYNY80,58612,044–

535Madison County, NYNY67,12012,035–

536Coconino County, AZAZ144,36812,031–

537Belknap County, NHNH65,14712,018–

538Wayne County, OHOH116,75812,011–

539Christian County, MOMO96,72512,009–

540Coweta County, GAGA160,24011,954–

541Bradley County, TNTN115,46511,944–

542Wichita County, TXTX129,55511,930–

543Livingston County, NYNY61,43811,914–

544Charles County, MDMD176,59311,882–

545Vigo County, ININ106,51211,867–

546Lapeer County, MIMI89,51611,855–

547Bullitt County, KYKY86,45411,851–

548Nevada County, CACA101,91111,826–

549Hawaii County, HIHI210,04311,756–

550Harrison County, WVWV64,22111,755–

551Story County, IAIA101,29111,708–

552Garland County, ARAR99,69511,696–

553Frederick County, VAVA99,95511,645–

554Flagler County, FLFL140,36011,641–

555Cullman County, ALAL94,00911,636–

556Sevier County, TNTN101,34211,611–

557Napa County, CACA132,94911,586–

558Lewis and Clark County, MTMT75,33111,586–

559Carroll County, NHNH52,78411,577–

560Jackson County, MSMS147,66611,535–

561Washington County, NYNY59,35311,524–

562Josephine County, OROR87,86711,507–

563Craighead County, ARAR116,95711,506–

564Randall County, TXTX152,35111,463–

565Buchanan County, MOMO83,54011,439–

566Houston County, GAGA178,21411,389–

567Eau Claire County, WIWI109,03311,355–

568Fond du Lac County, WIWI104,66911,346–

569Columbia County, NYNY60,16811,339–

570Caddo Parish, LALA224,22611,278–

571Armstrong County, PAPA63,69811,257–

572Fairbanks North Star, AKAK93,97211,115–

573Tuscarawas County, OHOH92,37311,115–

574Wood County, WVWV82,38511,013–

575Jefferson County, OHOH63,59710,992–

576Merced County, CACA297,26010,987–

577Morgan County, ALAL126,48310,979–

578Herkimer County, NYNY59,21910,925–

579Otsego County, NYNY60,58910,886–

580Fayette County, GAGA125,15610,786–

581Muscogee County, GAGA202,17110,759–

582Wicomico County, MDMD106,89910,743–

583Leavenworth County, KSKS84,59010,735–

584Harnett County, NCNC150,13710,726–

585Sandoval County, NMNM159,56510,699–

586Muskingum County, OHOH87,01410,689–

587Island County, WAWA85,65710,652–

588Lauderdale County, ALAL97,13510,643–

589Santa Fe County, NMNM156,90710,607–

590Daviess County, KYKY104,89810,587–

591Oconee County, SCSC83,77510,586–

592Rutland County, VTVT59,65310,575–

593St. Croix County, WIWI98,27610,540–

594Floyd County, ININ82,15310,528–

595Natrona County, WYWY80,52610,524–

596Craven County, NCNC105,02510,507–

597Rogers County, OKOK102,19710,494–

598Clarke County, GAGA129,92110,414–

599Highlands County, FLFL111,12210,351–

600Jefferson County, WIWI86,50510,348–

601Marathon County, WIWI139,43210,316–

602Johnson County, TXTX218,04810,306–

603Calhoun County, ALAL115,83410,301–

604Hanover County, VAVA116,42310,278–

605Bartow County, GAGA120,80010,273–

606Limestone County, ALAL122,92810,268–

607Bay County, MIMI102,12310,261–

608Lewis County, WAWA88,06210,242–

609Albemarle County, VAVA118,35610,229–

610James City County, VAVA83,32610,223–

611Allegan County, MIMI123,18810,215–

612Midland County, TXTX187,85510,204–

613Rowan County, NCNC155,09610,199–

614Erie County, OHOH73,29610,198–

615Shiawassee County, MIMI67,68110,196–

616Ouachita Parish, LALA158,54210,176–

617Ozaukee County, WIWI94,34610,160–

618Pitt County, NCNC182,93610,148–

619Belmont County, OHOH64,43410,130–

620Hunt County, TXTX123,33610,076–

621Sheboygan County, WIWI118,04710,051–

622Madison County, KYKY101,6969,983–

623Sebastian County, ARAR130,6419,982–

624Tom Green County, TXTX120,6029,971–

625Washington County, VTVT59,6529,950–

626Lenawee County, MIMI97,7799,915–

627Carbon County, PAPA65,8689,893–

628Coryell County, TXTX85,5929,872–

629Rockwall County, TXTX140,7389,836–

630Henderson County, TXTX88,5959,828–

631White County, ARAR80,0859,791–

632Clinton County, MIMI80,4329,752–

633Cabell County, WVWV91,1839,745–

634Madera County, CACA167,9279,688–

635Moore County, NCNC110,6199,685–

636Wayne County, PAPA51,7039,674–

637Wagoner County, OKOK93,2639,671–

638Montgomery County, ALAL225,8919,663–

639Lancaster County, SCSC114,2969,625–

640Aroostook County, MEME66,6099,559–

641Northumberland County, PAPA89,9209,502–

642Midland County, MIMI83,7549,490–

643Ross County, OHOH76,4299,462–

644Athens County, OHOH63,1979,430–

645Benton County, OROR97,7289,399–

646Grays Harbor County, WAWA78,1449,396–

647Oxford County, MEME60,3469,380–

648Carteret County, NCNC70,4699,348–

649Doña Ana County, NMNM229,0919,323–

650Sutter County, CACA98,7879,319–

651Montgomery County, VAVA98,4349,304–

652Kaufman County, TXTX209,2359,274–

653Hancock County, ININ90,9699,261–

654Grundy County, ILIL54,0529,206–

655Cascade County, MTMT85,0299,201–

656Faulkner County, ARAR133,9799,192–

657Franklin County, NYNY46,5009,165–

658Oldham County, KYKY70,9869,164–

659Bristol County, RIRI50,0019,119–

660Mendocino County, CACA88,1229,110–

661Blount County, ALAL60,1569,105–

662Scioto County, OHOH71,3659,091–

663Walker County, GAGA70,2509,081–

664Floyd County, GAGA101,3789,077–

665Clearfield County, PAPA78,1009,063–

666Wayne County, NCNC122,2789,056–

667Van Buren County, MIMI76,0719,052–

668Bradford County, PAPA59,6009,042–

669Nassau County, FLFL106,8798,975–

670Dodge County, WIWI89,0978,975–

671Allegany County, MDMD66,8488,964–

672Clallam County, WAWA78,2028,954–

673Silver Bow County, MTMT36,1188,920–

674Worcester County, MDMD54,4598,917–

675Knox County, OHOH64,0028,895–

676Ascension Parish, LALA135,1058,868–

677Lincoln County, NCNC98,6548,868–

678Catoosa County, GAGA69,6288,851–

679Marion County, WVWV55,5848,804–

680Genesee County, NYNY58,4168,752–

681Carroll County, GAGA131,0368,720–

682Kosciusko County, ININ80,8928,692–

683Columbia County, FLFL74,0948,689–

684St. Clair County, ALAL98,2068,680–

685Polk County, OROR90,0378,624–

686Payne County, OKOK83,8898,609–

687Glynn County, GAGA87,5998,604–

688Angelina County, TXTX88,1548,583–

689Isabella County, MIMI64,6918,577–

690Broomfield County, COCO79,1748,574–

691Windsor County, VTVT57,3128,553–

692Walton County, FLFL93,2888,527–

693Hidalgo County, TXTX921,5498,506–

694Fauquier County, VAVA76,5038,467–

695Raleigh County, WVWV71,7758,434–

696Roanoke County, VAVA97,1508,425–

697Orange County, TXTX86,2668,412–

698Sherburne County, MNMN104,1948,402–

699Jefferson County, WVWV63,1028,396–

700Riley County, KSKS72,5988,393–

701Delaware County, NYNY44,3058,387–

702Potter County, TXTX114,4538,372–

703Tuolumne County, CACA53,1608,368–

704Burke County, NCNC88,6558,346–

705Douglas County, GAGA154,2938,345–

706St. Francois County, MOMO67,8098,342–

707Yuma County, AZAZ224,4498,296–

708Lonoke County, ARAR76,6648,287–

709Warrick County, ININ66,8038,285–

710Williamson County, ILIL67,2258,260–

711Venango County, PAPA49,3468,257–

712Maui County, HIHI160,5928,250–

713Susquehanna County, PAPA38,2378,219–

714Somerset County, PAPA72,0048,213–

715Hancock County, MEME57,1718,179–

716Sauk County, WIWI66,6528,090–

717Tioga County, NYNY47,4538,073–

718Hinds County, MSMS211,8888,041–

719Florence County, SCSC138,5048,037–

720Bedford County, VAVA83,0598,037–

721Liberty County, TXTX121,3648,035–

722Clinton County, IAIA46,0028,031–

723Allegany County, NYNY46,8008,002–

724Union County, OHOH73,4467,904–

725Creek County, OKOK74,9677,898–

726Hancock County, OHOH75,0347,868–

727Bartholomew County, ININ85,7297,844–

728Mason County, WAWA71,1657,815–

729Queen Anne's County, MDMD54,4487,801–

730Crow Wing County, MNMN69,1327,800–

731Bossier Parish, LALA131,8677,780–

732Lincoln County, MOMO66,6767,686–

733Etowah County, ALAL103,8867,675–

734Wayne County, ININ66,1697,670–

735La Plata County, COCO56,8987,662–

736Morgan County, ININ74,9677,661–

737Johnson County, MOMO56,6707,654–

738Kenai Peninsula, AKAK61,9517,635–

739Howard County, ININ83,9047,624–

740Washington County, OHOH58,3897,619–

741Houston County, ALAL110,3187,612–

742Ionia County, MIMI66,5577,610–

743Pulaski County, KYKY67,3847,590–

744Monroe County, FLFL80,4067,582–

745Chenango County, NYNY45,7157,556–

746Vermilion County, ILIL71,2597,539–

747Franklin County, KYKY52,6497,519–

748Lowndes County, GAGA122,8677,514–

749Roanoke, VAVA99,1117,507–

750Anderson County, TNTN82,0667,496–

751York County, VAVA71,3747,475–

752Putnam County, FLFL77,7347,467–

753Fulton County, NYNY52,2167,440–

754Knox County, ILIL47,7677,437–

755Greene County, NYNY47,2387,436–

756Marion County, OHOH65,1157,418–

757Pittsburg County, OKOK43,3207,416–

758Jackson County, GAGA99,2657,407–

759Hampton, VAVA137,3157,400–

760Walton County, GAGA112,6967,399–

761Coos County, OROR63,9927,361–

762Chatham County, NCNC85,1117,357–

763Calaveras County, CACA46,6057,346–

764Maury County, TNTN118,1317,337–

765Mercer County, WVWV57,5037,325–

766Adams County, ILIL64,2677,316–

767Bonneville County, IDID135,7717,311–

768Haywood County, NCNC63,3697,302–

769Klamath County, OROR70,2747,271–

770Walker County, TXTX83,8427,255–

771Robertson County, TNTN80,1757,254–

772Walker County, ALAL65,1407,251–

773Chippewa County, WIWI67,6147,251–

774Caldwell County, NCNC81,1057,233–

775Yuba County, CACA88,6917,202–

776Elmore County, ALAL91,5777,195–

777Bannock County, IDID91,5917,182–

778Madison County, TNTN100,7907,181–

779Bibb County, GAGA157,5567,178–

780Augusta County, VAVA78,9407,137–

781Pickaway County, OHOH62,9787,130–

782Carson City, NVNV58,5717,124–

783Rapides Parish, LALA125,8777,123–

784Richmond County, GAGA206,5597,119–

785Huron County, OHOH58,2507,118–

786Hardin County, TXTX58,7237,104–

787Windham County, VTVT45,2047,099–

788Somerset County, MEME51,6207,090–

789Putnam County, TNTN86,6127,088–

790Marquette County, MIMI68,0647,087–

791Columbia County, WIWI58,1327,086–

792Whiteside County, ILIL54,1217,059–

793Columbia County, PAPA66,1937,058–

794Tehama County, CACA64,6657,058–

795Ogle County, ILIL51,3997,050–

796Talladega County, ALAL81,6037,048–

797Newton County, MOMO62,2637,002–

798Taney County, MOMO57,0016,999–

799Essex County, NYNY36,4386,989–

800Cape Girardeau County, MOMO83,9996,981–

801Rockingham County, NCNC94,1956,970–

802Navajo County, AZAZ109,9466,937–

803Cole County, MOMO77,9086,910–

804Madison County, MSMS116,2986,905–

805Dearborn County, ININ51,6096,868–

806Crawford County, ARAR62,6576,855–

807Cortland County, NYNY45,8506,845–

808Whitfield County, GAGA106,2126,844–

809Lawrence County, OHOH55,7106,843–

810Lyon County, NVNV65,0886,834–

811Montgomery County, NYNY50,0466,832–

812Ohio County, WVWV40,4966,830–

813Camden County, GAGA60,1436,826–

814Warren County, IAIA57,3316,819–

815Umatilla County, OROR81,1196,795–

816Greene County, ARAR47,4116,786–

817Madison County, OHOH46,9856,779–

818Gila County, AZAZ53,8016,775–

819Scott County, KYKY62,2626,772–

820Manitowoc County, WIWI81,7106,766–

821Burleigh County, NDND103,2516,764–

822Franklin County, VTVT51,1776,763–

823Cumberland County, TNTN66,3006,755–

824Garfield County, OKOK61,7796,751–

825Pender County, NCNC72,1116,734–

826Twin Falls County, IDID97,5396,731–

827Sandusky County, OHOH58,6556,718–

828Pottawatomie County, OKOK75,1026,713–

829McKean County, PAPA38,9846,680–

830Barrow County, GAGA99,7736,673–

831Bennington County, VTVT36,6306,669–

832Seneca County, OHOH54,5226,622–

833Georgetown County, SCSC65,9126,611–

834Portage County, WIWI71,9436,599–

835Lake County, CACA67,7726,597–

836Coles County, ILIL46,6076,547–

837Reno County, KSKS61,5396,544–

838Laurel County, KYKY63,7466,518–

839Greene County, TNTN73,8316,513–

840Dickson County, TNTN58,6626,503–

841Orleans County, NYNY39,8256,480–

842Cache County, UTUT145,0006,463–

843Ravalli County, MTMT48,5826,461–

844Lincoln County, OROR50,6366,460–

845Grant County, WIWI52,4466,443–

846Boone County, ININ80,6896,432–

847Butler County, KSKS69,4846,430–

848Nacogdoches County, TXTX66,0356,419–

849McMinn County, TNTN57,4046,418–

850Chelan County, WAWA81,9416,418–

851Henry County, ILIL48,0956,414–

852Columbia County, OROR54,0916,399–

853Garfield County, COCO63,4746,399–

854Wood County, WIWI74,0606,398–

855Victoria County, TXTX92,6566,391–

856Wyoming County, NYNY39,7416,374–

857Douglas County, NVNV50,1116,365–

858Rice County, MNMN69,9396,353–

859San Juan County, NMNM120,3406,349–

860Buffalo County, NENE51,1726,327–

861Lamar County, MSMS67,4036,323–

862Montcalm County, MIMI69,4066,315–

863Fulton County, OHOH41,8536,291–

864Logan County, OKOK55,4736,284–

865Livingston County, ILIL35,0576,267–

866Bulloch County, GAGA86,9496,249–

867Boone County, ILIL53,5686,224–

868Forrest County, MSMS79,0346,180–

869Le Flore County, OKOK50,1966,174–

870Bonner County, IDID54,4206,174–

871Lee County, MSMS83,7316,172–

872Ashland County, OHOH52,5236,165–

873Huntingdon County, PAPA43,0016,165–

874Jackson County, ILIL52,5016,151–

875Jessamine County, KYKY57,1476,137–

876Watauga County, NCNC54,7866,105–

877McCracken County, KYKY67,5536,097–

878Talbot County, MDMD38,2386,075–

879Ector County, TXTX173,8016,059–

880Shelby County, KYKY51,2436,056–

881Tazewell County, VAVA38,6356,052–

882Newton County, GAGA125,5836,051–

883Mifflin County, PAPA46,1276,046–

884Barry County, MIMI63,9916,031–

885Lincoln County, MEME36,5956,029–

886Lincoln County, SDSD77,1456,024–

887Grand Forks County, NDND74,5015,994–

888Rockingham County, VAVA89,3165,987–

889Marshall County, ALAL103,5375,976–

890Kings County, CACA154,3275,975–

891Boone County, ARAR38,6285,966–

892Clarion County, PAPA36,6805,950–

893Mayes County, OKOK40,4165,947–

894Tipton County, TNTN62,2875,944–

895Monroe County, TNTN49,7305,929–

896Saline County, KSKS53,3775,927–

897Kerr County, TXTX54,0375,926–

898Pearl River County, MSMS59,3635,917–

899Champaign County, OHOH38,8205,908–

900Addison County, VTVT38,0485,890–

901Washington County, OKOK54,0375,880–

902Cass County, MIMI51,6775,872–

903Walla Walla County, WAWA62,3615,869–

904Suffolk, VAVA104,6995,857–

905Putnam County, WVWV56,8855,818–

906Rutherford County, NCNC65,7455,816–

907Butler County, MOMO41,9045,802–

908Pierce County, WIWI43,5195,796–

909Jefferson County, TNTN60,0245,781–

910Loudon County, TNTN63,7645,773–

911Effingham County, GAGA74,3975,767–

912Perry County, OHOH35,9185,763–

913Seneca County, NYNY32,8835,745–

914DeKalb County, ALAL74,0855,730–

915Schoharie County, NYNY30,1765,725–

916Grant County, WAWA105,7275,724–

917Montgomery County, ININ38,9545,723–

918Orange County, VAVA40,0835,709–

919Coffee County, TNTN62,4195,706–

920St. Joseph County, MIMI60,9685,687–

921Bastrop County, TXTX118,9085,683–

922Sumter County, SCSC105,0675,679–

923Wise County, TXTX83,7785,678–

924Hancock County, WVWV27,7295,678–

925Lawrence County, ININ45,5685,670–

926Blue Earth County, MNMN70,6345,664–

927Harrison County, TXTX71,9565,658–

928Logan County, OHOH46,3025,645–

929Cleveland County, NCNC103,3255,644–

930Muskogee County, OKOK66,7085,641–

931Nye County, NVNV57,3365,629–

932Pope County, ARAR64,9765,623–

933Warren County, VAVA42,7405,569–

934Hawkins County, TNTN59,5595,569–

935Warren County, PAPA37,0385,566–

936Hall County, NENE63,6335,563–

937Troup County, GAGA72,8445,546–

938Crawford County, KSKS39,0085,541–

939Knox County, MEME41,1175,533–

940Carter County, TNTN57,3615,479–

941Baxter County, ARAR42,9825,461–

942Nelson County, KYKY49,0365,450–

943Clayton County, GAGA297,4715,440–

944Brown County, OHOH44,3975,428–

945Roane County, TNTN57,3955,413–

946Christian County, KYKY70,1155,406–

947Chisago County, MNMN59,1425,399–

948Rusk County, TXTX54,8545,388–

949Jasper County, IAIA38,1535,388–

950Sullivan County, NHNH43,9615,387–

951Winona County, MNMN50,5235,372–

952Camden County, MOMO44,0475,360–

953Fayette County, WVWV38,1655,351–

954Franklin County, WAWA102,6125,346–

955Amador County, CACA41,8765,345–

956Hood County, TXTX70,5015,345–

957Crawford County, OHOH41,8965,335–

958Greene County, PAPA33,8855,323–

959Guernsey County, OHOH38,3795,320–

960Carter County, OKOK48,9105,318–

961Cerro Gordo County, IAIA42,3725,318–

962Waldo County, MEME40,6935,307–

963Tuscola County, MIMI52,6805,305–

964Kershaw County, SCSC73,1665,282–

965Grant County, ININ66,5245,281–

966Lee County, ILIL32,9145,279–

967Jefferson County, PAPA43,2555,277–

968Harris County, GAGA37,2805,274–

969Clinton County, OHOH42,3015,265–

970Goodhue County, MNMN48,1955,252–

971Pulaski County, MOMO54,4425,248–

972Macoupin County, ILIL43,7485,245–

973Laurens County, SCSC71,8485,237–

974Ward County, NDND68,2335,232–

975Wise County, VAVA34,8245,209–

976Sagadahoc County, MEME37,9795,208–

977Washington County, VAVA53,8985,197–

978Eagle County, COCO54,2915,180–

979Callaway County, MOMO45,7655,176–

980Tioga County, PAPA40,5025,170–

981Hillsdale County, MIMI45,7385,169–

982Harrisonburg, VAVA50,8395,168–

983Coshocton County, OHOH37,1885,164–

984Bryan County, OKOK51,3675,155–

985Siskiyou County, CACA42,0135,147–

986Osage County, OKOK46,7945,138–

987Highland County, OHOH43,8235,127–

988Lynchburg, VAVA81,3475,119–

989Mecosta County, MIMI42,3205,115–

990Jackson County, ALAL54,2815,082–

991Warren County, MOMO39,0165,080–

992Miami County, KSKS36,2405,070–

993Polk County, TXTX53,4345,052–

994Hancock County, MSMS46,8735,044–

995Phelps County, MOMO45,2475,036–

996Henry County, ININ49,1375,035–

997Monroe County, WIWI46,5725,034–

998Autauga County, ALAL61,9205,033–

999Pickens County, GAGA37,1675,020–

1000Wood County, TXTX49,6885,017–

SHOWING 501–1,000 OF 3,134

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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES