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RANKING · 2020 CENSUS · 500 SHOWN OF 3,134

Highest Irish population share, US counties · 2020

US counties ranked by the share of all residents who are Irish ancestry (2023 American Community Survey). A concentration measure: Irish residents as a percentage of total population.

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YEAR201020202024
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RANKPLACESTATEPOPIRISH SHAREVS 2000
501Brown County, ININ15,77713.7%
502Franklin County, VTVT51,17713.7%
503Callahan County, TXTX14,49113.7%
504Henry County, MOMO22,67113.7%
505Goshen County, WYWY12,64013.7%
506Erie County, OHOH73,29613.7%
507Amador County, CACA41,87613.7%
508Wise County, VAVA34,82413.7%
509Clark County, OHOH135,34013.7%
510Pierce County, WIWI43,51913.7%
511Indian River County, FLFL172,79913.7%
512Richland County, MTMT11,37713.7%
513Wright County, MOMO19,67113.7%
514Union County, OHOH73,44613.7%
515Huntingdon County, PAPA43,00113.7%
516Granite County, MTMT3,65813.7%
517Frederick County, MDMD302,88313.7%
518La Plata County, COCO56,89813.6%
519Clearwater County, IDID9,11813.6%
520Guernsey County, OHOH38,37913.6%
521Jasper County, ININ33,89413.6%
522King George County, VAVA29,64613.6%
523Laclede County, MOMO36,94313.6%
524Butler County, MOMO41,90413.6%
525Cowlitz County, WAWA114,88513.6%
526New Castle County, DEDE588,02613.6%
527Page County, IAIA14,85613.6%
528Moore County, TNTN6,92013.6%
529Marshall County, KSKS9,85213.6%
530Walworth County, WIWI106,12713.6%
531Appanoose County, IAIA12,07713.6%
532Hancock County, KYKY9,05013.6%
533Rock County, NENE1,25913.6%
534Hocking County, OHOH27,51213.6%
535Kitsap County, WAWA283,37413.6%
536Geauga County, OHOH95,67613.6%
537Cottle County, TXTX1,22413.5%
538Flathead County, MTMT115,42913.5%
539Polk County, MOMO33,60413.5%
540Boone County, IAIA26,79913.5%
541Hernando County, FLFL221,70113.5%
542De Witt County, ILIL15,11813.5%
543Douglas County, NENE606,46013.5%
544Grundy County, TNTN14,11613.5%
545Sweet Grass County, MTMT3,76213.5%
546Floyd County, ININ82,15313.5%
547Oconee County, SCSC83,77513.5%
548Ellis County, OKOK3,61313.5%
549Martin County, ININ9,85613.5%
550Carteret County, NCNC70,46913.5%
551Greer County, OKOK5,37313.5%
552Eaton County, MIMI109,58113.5%
553Lapeer County, MIMI89,51613.5%
554Marquette County, WIWI15,92713.5%
555Dallas County, IAIA118,45713.5%
556Brevard County, FLFL663,98213.5%
557Le Sueur County, MNMN29,45313.5%
558Hampshire County, WVWV24,10513.4%
559James City County, VAVA83,32613.4%
560Cumberland County, PAPA277,27013.4%
561Yancey County, NCNC19,08413.4%
562Rooks County, KSKS4,64613.4%
563Greene County, OHOH174,32213.4%
564Bond County, ILIL16,95913.4%
565Fairfield County, OHOH169,75213.4%
566Shelby County, IAIA11,68913.4%
567Warren County, IAIA57,33113.4%
568Worth County, MOMO1,91413.4%
569Waldo County, MEME40,69313.4%
570Lincoln County, NENE33,30313.4%
571Clark County, ININ130,45113.4%
572Andrew County, MOMO18,24113.4%
573Carroll County, OHOH26,47513.4%
574Lincoln County, MOMO66,67613.3%
575Leelanau County, MIMI22,98213.3%
576Winston County, ALAL23,82913.3%
577Benton County, ININ8,88313.3%
578Owen County, ININ21,88613.3%
579Spokane County, WAWA558,34413.3%
580Northampton County, PAPA324,41113.3%
581LaPorte County, ININ111,29413.3%
582Lincoln County, MTMT22,32813.3%
583Kent County, DEDE194,78613.3%
584Hodgeman County, KSKS1,61913.3%
585Henry County, KYKY16,44713.3%
586Waukesha County, WIWI417,21013.3%
587Perry County, ININ19,38913.3%
588Logan County, OKOK55,47313.3%
589Tucker County, WVWV6,54013.3%
590Cass County, MOMO115,85913.2%
591Ashtabula County, OHOH96,71313.2%
592Fentress County, TNTN20,32213.2%
593Warrick County, ININ66,80313.2%
594Richardson County, NENE7,53013.2%
595Oglethorpe County, GAGA16,41513.2%
596Douglas County, KSKS120,92013.2%
597Summit County, OHOH538,37613.2%
598Frederick County, VAVA99,95513.2%
599Ray County, MOMO23,39813.2%
600Johnson County, IAIA160,04413.2%
601Klickitat County, WAWA24,33113.2%
602Dyer County, TNTN36,32013.2%
603Josephine County, OROR87,86713.2%
604Winn Parish, LALA14,96113.2%
605Lane County, OROR381,58413.2%
606Marion County, IAIA34,19213.2%
607Bates County, MOMO16,51213.2%
608Yates County, NYNY24,54713.2%
609Lawrence County, SDSD29,45913.2%
610Catoosa County, GAGA69,62813.2%
611Leavenworth County, KSKS84,59013.2%
612Nassau County, NYNY1,398,93913.2%
613Pushmataha County, OKOK10,80713.2%
614Ford County, ILIL13,21613.2%
615Dent County, MOMO14,58413.2%
616Natrona County, WYWY80,52613.1%
617Tishomingo County, MSMS18,63913.1%
618Douglas County, NVNV50,11113.1%
619Cass County, NENE27,65713.1%
620Morgan County, TNTN22,16013.1%
621Custer County, SDSD9,43113.1%
622Houston County, MNMN18,40013.1%
623Cheyenne County, COCO1,71313.1%
624Baxter County, ARAR42,98213.1%
625Washburn County, WIWI17,08713.1%
626Lincoln County, OROR50,63613.1%
627Sitka, AKAK8,31913.1%
628Mifflin County, PAPA46,12713.1%
629Walker County, GAGA70,25013.1%
630Henry County, ILIL48,09513.1%
631Van Buren County, IAIA7,13113.1%
632Prentiss County, MSMS25,28413.1%
633Coryell County, TXTX85,59213.1%
634Wood County, WVWV82,38513.1%
635Gosper County, NENE1,80313.0%
636Anderson County, KYKY25,22513.0%
637Rowan County, KYKY24,47613.0%
638Clare County, MIMI31,54313.0%
639Boyle County, KYKY31,63213.0%
640San Juan County, WAWA18,57713.0%
641Lawrence County, ARAR16,27313.0%
642Larimer County, COCO377,29213.0%
643Clay County, MOMO265,03213.0%
644Custer County, COCO5,59013.0%
645Buchanan County, MOMO83,54013.0%
646Toole County, MTMT5,21113.0%
647Lucas County, IAIA8,84713.0%
648Mono County, CACA12,50513.0%
649Providence County, RIRI678,17913.0%
650Coffey County, KSKS8,46713.0%
651St. Louis County, MOMO990,91113.0%
652Kenai Peninsula, AKAK61,95113.0%
653Suffolk County, MAMA791,89113.0%
654Polk County, ARAR19,48613.0%
655Hamilton County, ILIL7,85913.0%
656Jefferson County, COCO580,45113.0%
657Clark County, ILIL15,11413.0%
658Arenac County, MIMI15,06812.9%
659Elk County, PAPA29,92612.9%
660San Miguel County, COCO7,75312.9%
661Chautauqua County, KSKS3,32112.9%
662Madison County, ILIL263,11012.9%
663York County, NENE14,56412.9%
664Sarpy County, NENE208,30312.9%
665Alcorn County, MSMS34,56912.9%
666Carson City, NVNV58,57112.9%
667Polk County, IAIA516,54612.9%
668Lewis County, WAWA88,06212.9%
669Allen County, KSKS12,30212.9%
670Ottawa County, KSKS5,74412.9%
671Green County, WIWI37,22712.9%
672Stoddard County, MOMO28,28412.9%
673Lawrence County, MOMO39,40112.9%
674Tillman County, OKOK6,78012.9%
675St. Clair County, MIMI160,48612.9%
676Warren County, ILIL16,22212.9%
677Howard County, NENE6,53812.9%
678Larue County, KYKY15,18412.8%
679Panola County, TXTX23,01812.8%
680Douglas County, COCO399,39612.8%
681Jersey County, ILIL21,16012.8%
682St. Tammany Parish, LALA279,10812.8%
683Elliott County, KYKY7,26512.8%
684Crawford County, OHOH41,89612.8%
685Benzie County, MIMI18,56812.8%
686Pennington County, SDSD116,79212.8%
687Sherman County, KSKS5,76312.8%
688Coles County, ILIL46,60712.8%
689Saunders County, NENE23,70212.8%
690Guthrie County, IAIA10,78212.8%
691Monroe County, MOMO8,95912.8%
692Pitkin County, COCO16,62512.8%
693McDowell County, WVWV16,87812.8%
694Modoc County, CACA8,42612.8%
695Claiborne County, TNTN33,22912.8%
696Ouray County, COCO5,26512.8%
697Jackson Parish, LALA15,83412.8%
698Washington County, COCO4,73212.8%
699Monroe County, TNTN49,73012.8%
700Churchill County, NVNV25,85112.8%
701Pontotoc County, OKOK38,52812.8%
702Bureau County, ILIL32,51012.8%
703Buffalo County, NENE51,17212.8%
704Roberts County, TXTX86712.8%
705Fergus County, MTMT11,82512.8%
706Fremont County, IAIA6,52212.7%
707Douglas County, OROR111,95112.7%
708Grays Harbor County, WAWA78,14412.7%
709Clay County, WVWV7,53812.7%
710Cotton County, OKOK5,43212.7%
711Houston County, TXTX22,31612.7%
712Stone County, MOMO32,50312.7%
713Weston County, WYWY6,84012.7%
714Holt County, MOMO4,20012.7%
715Polk County, NCNC20,53312.7%
716Whiteside County, ILIL54,12112.7%
717Chautauqua County, NYNY124,12612.7%
718Kankakee County, ILIL105,52512.7%
719Dane County, WIWI590,37512.7%
720Dawson County, GAGA35,36512.7%
721Tioga County, PAPA40,50212.7%
722Mesa County, COCO162,84512.7%
723Mahaska County, IAIA21,88012.7%
724Cheyenne County, NENE9,52812.7%
725Fountain County, ININ17,01312.7%
726Madison County, VAVA14,23712.7%
727Jefferson County, OKOK5,43112.7%
728Island County, WAWA85,65712.7%
729Washington County, OHOH58,38912.7%
730Camden County, GAGA60,14312.7%
731Des Moines County, IAIA38,07712.6%
732Woodford County, KYKY27,88312.6%
733Lewis County, WVWV16,39412.6%
734Pasco County, FLFL674,51612.6%
735Vernon County, MOMO19,94612.6%
736Allegany County, MDMD66,84812.6%
737Clark County, KSKS1,90012.6%
738Sauk County, WIWI66,65212.6%
739St. Johns County, FLFL346,32812.6%
740Taney County, MOMO57,00112.6%
741Shelby County, KYKY51,24312.6%
742Fleming County, KYKY15,78712.6%
743Brunswick County, NCNC174,70212.6%
744Atoka County, OKOK14,60912.6%
745Clatsop County, OROR40,92612.6%
746Gila County, AZAZ53,80112.6%
747Iron County, MOMO9,31812.6%
748Cannon County, TNTN15,29612.6%
749Wheeler County, TXTX4,77312.6%
750Dewey County, OKOK4,20712.6%
751Carroll County, ILIL15,41912.6%
752Marshall County, KYKY31,65912.6%
753Middlesex County, VAVA10,84112.6%
754Hamilton County, OHOH838,41812.6%
755Clay County, ARAR14,05212.6%
756Hickman County, KYKY4,37212.6%
757Mineral County, NVNV4,40712.5%
758Chase County, NENE3,71812.5%
759Sangamon County, ILIL194,17012.5%
760Luce County, MIMI6,33912.5%
761Clinton County, OHOH42,30112.5%
762Clark County, KYKY37,88812.5%
763Powhatan County, VAVA32,59112.5%
764Ohio County, ININ5,99412.5%
765Marion County, MOMO28,52512.5%
766Collingsworth County, TXTX2,48712.5%
767St. Francois County, MOMO67,80912.5%
768Pinellas County, FLFL948,56312.5%
769Marin County, CACA253,69412.5%
770Grant County, WIWI52,44612.5%
771Bracken County, KYKY8,51112.5%
772Sullivan County, NHNH43,96112.5%
773Beaufort County, SCSC204,43312.5%
774Brown County, OHOH44,39712.5%
775San Augustine County, TXTX7,72212.5%
776Baker County, FLFL29,73712.5%
777Rice County, KSKS9,26612.5%
778Cerro Gordo County, IAIA42,37212.5%
779Centre County, PAPA157,39312.5%
780Potter County, PAPA15,89712.5%
781Montgomery County, MOMO11,59012.5%
782Logan County, OHOH46,30212.5%
783Lawrence County, ININ45,56812.4%
784Jackson County, KSKS13,43812.4%
785Yuma County, COCO9,89612.4%
786Kootenai County, IDID191,86412.4%
787White County, ARAR80,08512.4%
788Arlington County, VAVA243,93112.4%
789Foard County, TXTX1,04412.4%
790Santa Rosa County, FLFL211,11512.4%
791Custer County, IDID4,63612.4%
792Muskingum County, OHOH87,01412.4%
793Kalkaska County, MIMI18,69312.4%
794Laramie County, WYWY102,93812.4%
795Fayette County, WVWV38,16512.4%
796Sonoma County, CACA486,44412.4%
797Montgomery County, ARAR8,57912.4%
798Humboldt County, IAIA9,40912.4%
799Hardin County, TXTX58,72312.4%
800Franklin County, ILIL36,91612.4%
801Tompkins County, NYNY104,04712.4%
802Macon County, ILIL99,30012.4%
803Trousdale County, TNTN12,62312.4%
804Nye County, NVNV57,33612.4%
805Franklin Parish, LALA19,00212.4%
806Louisa County, VAVA42,92412.4%
807Columbia County, WIWI58,13212.4%
809Waseca County, MNMN18,68812.4%
810Clinton County, MIMI80,43212.4%
811Republic County, KSKS4,64012.4%
812Le Flore County, OKOK50,19612.3%
813Broomfield County, COCO79,17412.3%
814Williamson County, ILIL67,22512.3%
815Mercer County, WVWV57,50312.3%
816Oregon County, MOMO8,70912.3%
817Hamilton County, ININ387,03612.3%
818York County, PAPA473,19712.3%
819Lee County, VAVA21,64212.3%
820Rock Island County, ILIL141,86912.3%
821Noble County, OKOK10,89912.3%
822Ross County, OHOH76,42912.3%
823Dare County, NCNC38,24512.3%
824Bristol, VAVA16,41812.3%
825Pawnee County, OKOK16,02912.3%
826Thurston County, WAWA304,26112.3%
827Clay County, NCNC12,23912.3%
828Rush County, ININ16,76712.3%
829Charlotte County, FLFL217,21212.3%
830Chickasaw County, IAIA11,66312.3%
831Spink County, SDSD6,15512.3%
832Live Oak County, TXTX11,92912.3%
833Columbia County, OROR54,09112.3%
834Lyon County, NVNV65,08812.3%
835Mason County, KYKY16,93612.3%
836Pickaway County, OHOH62,97812.3%
837Jackson County, OROR221,79512.3%
838Bryan County, GAGA52,06212.3%
839Columbia County, FLFL74,09412.3%
840Caroline County, MDMD34,11612.2%
841Manatee County, FLFL468,20012.2%
842Cedar County, MOMO14,88812.2%
843Washington County, IDID11,58312.2%
844Lanier County, GAGA10,62312.2%
845Franklin County, FLFL13,02912.2%
846Yamhill County, OROR110,02412.2%
847Obion County, TNTN30,06712.2%
848Dakota County, MNMN457,71012.2%
849Huron County, OHOH58,25012.2%
850Dickson County, TNTN58,66212.2%
851Jefferson County, WIWI86,50512.2%
852Clinton County, PAPA37,87012.2%
853Boone County, MOMO191,74612.2%
854Marion County, ILIL36,38212.2%
855Isabella County, MIMI64,69112.2%
856Mitchell County, NCNC15,06212.2%
857Atchison County, MOMO5,17512.2%
858Washington County, MNMN286,89512.2%
859Carroll County, IAIA20,30312.2%
860Cheatham County, TNTN42,77812.2%
861Pawnee County, NENE2,51012.2%
862Madison County, NCNC22,55312.2%
863Crook County, WYWY7,85212.2%
864Lavaca County, TXTX20,65112.2%
865Tazewell County, ILIL130,04912.2%
866Benewah County, IDID10,50812.2%
867Yellowstone County, MTMT172,69212.2%
868Giles County, TNTN31,43312.2%
869Schuyler County, ILIL6,65712.2%
870Kimble County, TXTX4,43812.1%
871Benton County, MOMO20,53612.1%
872Albany County, WYWY38,55812.1%
873Okaloosa County, FLFL221,81012.1%
874Perry County, ARAR10,30912.1%
875Jefferson County, PAPA43,25512.1%
876San Luis Obispo County, CACA282,36712.1%
877Ottawa County, OHOH39,48112.1%
878Simpson County, KYKY20,78812.1%
879Latah County, IDID41,84212.1%
880Scott County, KYKY62,26212.1%
881Custer County, NENE10,50012.1%
882Alleghany County, VAVA14,54612.1%
883Sioux County, NENE1,18812.1%
884Monroe County, MIMI156,00412.1%
885Hancock County, ININ90,96912.1%
886Wabash County, ININ30,71312.1%
887Calhoun County, IAIA9,56212.1%
888Martin County, KYKY10,69712.1%
889Haralson County, GAGA33,06612.1%
890Sullivan County, TNTN163,75912.1%
891Sherman County, NENE2,92412.1%
892Webster County, IAIA36,83812.1%
893Tuscarawas County, OHOH92,37312.1%
894Adams County, PAPA107,59412.1%
895Oneida County, WIWI38,13112.1%
896Washita County, OKOK10,88412.1%
897Jefferson County, KYKY795,22212.1%
898Forest County, WIWI9,57412.1%
899Douglas County, MOMO12,34212.1%
900Scioto County, OHOH71,36512.1%
901Wagoner County, OKOK93,26312.0%
902Winneshiek County, IAIA19,73312.0%
903Gallia County, OHOH29,07212.0%
904Hartley County, TXTX4,90412.0%
905Meade County, SDSD30,71112.0%
906Crow Wing County, MNMN69,13212.0%
907Fauquier County, VAVA76,50312.0%
908Richland County, ILIL15,21912.0%
909Story County, IAIA101,29112.0%
910Gallatin County, KYKY8,84012.0%
911McMinn County, TNTN57,40412.0%
912Monroe County, OHOH12,99412.0%
913Perkins County, SDSD2,85312.0%
914Union County, TNTN21,45012.0%
915Newton County, MOMO62,26312.0%
916Harrison County, OHOH14,07012.0%
917Mingo County, WVWV21,45512.0%
918Peoria County, ILIL178,55312.0%
919Van Buren County, MIMI76,07112.0%
920Walton County, FLFL93,28812.0%
921Henderson County, TXTX88,59512.0%
922Pleasants County, WVWV7,33812.0%
923Jackson County, ARAR16,74112.0%
924Black Hawk County, IAIA131,53212.0%
925Seneca County, OHOH54,52212.0%
926Miami County, OHOH112,63412.0%
927Spencer County, KYKY20,99812.0%
928Amelia County, VAVA13,63212.0%
929Allen County, OHOH100,88112.0%
930Woodbury County, IAIA106,64912.0%
931Rockland County, NYNY357,39712.0%
932Mason County, WAWA71,16512.0%
933Clayton County, IAIA16,84512.0%
934Stephens County, TXTX9,38012.0%
935Wibaux County, MTMT88512.0%
936Ritchie County, WVWV8,03412.0%
937Starke County, ININ23,42511.9%
938Borden County, TXTX56711.9%
939Neosho County, KSKS15,63711.9%
940Sublette County, WYWY8,92911.9%
941Pawnee County, KSKS5,99111.9%
942Delta County, COCO32,17811.9%
943Cherokee County, GAGA299,27311.9%
944Highland County, OHOH43,82311.9%
945Butler County, KYKY12,52011.9%
946Nevada County, CACA101,91111.9%
947Hyde County, SDSD1,19111.9%
948Sumner County, KSKS22,31211.9%
949Spotsylvania County, VAVA155,38811.9%
950Horry County, SCSC427,55111.9%
951Osceola County, MIMI23,51611.9%
952Roscommon County, MIMI23,91411.9%
953Prairie County, MTMT1,11211.9%
954Craig County, OKOK14,51811.9%
955Carver County, MNMN114,37911.9%
956Huntington County, ININ37,22411.9%
957Preston County, WVWV34,00411.9%
958Nelson County, KYKY49,03611.9%
959Hardin County, TNTN27,98311.9%
960Nemaha County, NENE7,10211.9%
961Sevier County, TNTN101,34211.8%
962Morgan County, OHOH13,62611.8%
963Mohave County, AZAZ228,10211.8%
964Siskiyou County, CACA42,01311.8%
965Vilas County, WIWI23,76111.8%
966Idaho County, IDID17,87411.8%
967Ionia County, MIMI66,55711.8%
968Coal County, OKOK5,43611.8%
969Monroe County, WVWV12,49111.8%
970Garland County, ARAR99,69511.8%
971Keith County, NENE8,10011.8%
972Golden Valley County, NDND1,80811.8%
973Haywood County, NCNC63,36911.8%
974Aitkin County, MNMN16,25211.8%
975Cuyahoga County, OHOH1,232,92511.8%
976Matanuska-Susitna, AKAK118,66611.8%
977Winnebago County, ILIL283,67411.8%
978Somerset County, NJNJ356,48611.8%
979Miller County, MOMO25,81711.8%
980Cherokee County, KSKS19,10511.8%
981Lewis County, KYKY12,90111.8%
982Mecosta County, MIMI42,32011.8%
983Franklin County, OHOH1,361,53611.8%
984St. Croix County, WIWI98,27611.8%
985Clay County, FLFL239,59311.7%
986Boulder County, COCO328,56011.7%
987Monroe County, ININ143,34511.7%
988Henderson County, NCNC122,37511.7%
989Baltimore County, MDMD847,65011.7%
990Lake County, FLFL456,06811.7%
991Pulaski County, KYKY67,38411.7%
992Fillmore County, NENE5,45811.7%
993McCook County, SDSD5,96411.7%
994Knott County, KYKY13,32111.7%
995Clallam County, WAWA78,20211.7%
996Fisher County, TXTX3,69211.7%
997Oldham County, TXTX1,78311.7%
998Delaware County, OKOK41,91011.7%
999Camden County, MOMO44,04711.7%
1000Madison County, GAGA32,91911.7%
SHOWING 501–1,000 OF 3,134
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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES