RANKING · 2024 ACS · 500 SHOWN OF 3,144

Largest Irish population, US counties

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

501Columbia County, GAGA169,18913,605–

502Northeastern Connecticut Planning Region, CTCT98,09613,579–

503Coconino County, AZAZ144,36813,567–

504Monongalia County, WVWV107,99113,509–

505Calcasieu Parish, LALA208,46613,393–

506Calvert County, MDMD94,48413,373–

507Caddo Parish, LALA224,22613,365–

508Chemung County, NYNY80,41513,306–

509Miami County, OHOH112,63413,297–

510Adams County, PAPA107,59413,280–

511Wyandotte County, KSKS170,59713,200–

512Jackson County, MSMS147,66613,184–

513Tompkins County, NYNY104,04713,161–

514Laramie County, WYWY102,93813,151–

515Bradley County, TNTN115,46512,997–

516Henry County, GAGA264,92212,981–

517Catawba County, NCNC170,17212,968–

518Douglas County, OROR111,95112,921–

519Sandoval County, NMNM159,56512,882–

520Wayne County, NYNY91,25012,874–

521Jefferson County, TXTX254,32112,825–

522Calhoun County, MIMI133,40812,694–

523Randall County, TXTX152,35112,651–

524Santa Fe County, NMNM156,90712,639–

525Warren County, KYKY149,37512,608–

526Elkhart County, ININ208,77412,548–

527Alamance County, NCNC186,17712,511–

528Coweta County, GAGA160,24012,509–

529Vigo County, ININ106,51212,494–

530Garland County, ARAR99,69512,474–

531Crawford County, PAPA81,79212,424–

532Hawaii County, HIHI210,04312,411–

533Cowlitz County, WAWA114,88512,400–

534Calhoun County, ALAL115,83412,376–

535Stearns County, MNMN164,11012,345–

536Cattaraugus County, NYNY75,39012,333–

537Sevier County, TNTN101,34212,308–

538Limestone County, ALAL122,92812,305–

539Christian County, MOMO96,72512,243–

540Carver County, MNMN114,37912,215–

541Wicomico County, MDMD106,89912,139–

542Cullman County, ALAL94,00912,126–

543Cumberland County, NJNJ157,14812,094–

544Matanuska-Susitna, AKAK118,66612,088–

545Clinton County, NYNY78,13812,040–

546Pike County, PAPA62,80812,008–

547Kankakee County, ILIL105,52512,000–

548Rogers County, OKOK102,19711,999–

549Franklin County, MAMA70,69811,979–

550Washington County, NYNY59,35311,969–

551Randolph County, NCNC149,51611,967–

552Cheshire County, NHNH78,26911,966–

553Frederick County, VAVA99,95511,947–

554Rockwall County, TXTX140,73811,941–

555Taylor County, TXTX150,07711,923–

556Hardin County, KYKY113,48211,892–

557Rowan County, NCNC155,09611,879–

558Benton County, OROR97,72811,832–

559Delaware County, ININ113,10611,820–

560Houston County, GAGA178,21411,757–

561Pottawattamie County, IAIA92,99611,706–

562Lewis and Clark County, MTMT75,33111,681–

563Wayne County, OHOH116,75811,659–

564Harnett County, NCNC150,13711,628–

565Allen County, OHOH100,88111,611–

566Hanover County, VAVA116,42311,569–

567St. Croix County, WIWI98,27611,564–

568Woodbury County, IAIA106,64911,560–

569Floyd County, GAGA101,37811,551–

570Craighead County, ARAR116,95711,412–

571Cochise County, AZAZ126,33211,398–

572Pitt County, NCNC182,93611,393–

573Tangipahoa Parish, LALA141,34611,350–

574Doña Ana County, NMNM229,09111,346–

575Madison County, NYNY67,12011,280–

576Herkimer County, NYNY59,21911,277–

577Oconee County, SCSC83,77511,201–

578Harrison County, WVWV64,22111,192–

579Bullitt County, KYKY86,45411,190–

580Yamhill County, OROR110,02411,168–

581Napa County, CACA132,94911,166–

582Sullivan County, NYNY80,58611,149–

583Gregg County, TXTX126,09511,119–

584Tuscarawas County, OHOH92,37311,116–

585Wood County, WVWV82,38511,116–

586Island County, WAWA85,65711,114–

587Clarke County, GAGA129,92111,049–

588Lapeer County, MIMI89,51611,047–

589Comanche County, OKOK122,15811,010–

590Eau Claire County, WIWI109,03311,004–

591Salem County, NJNJ66,28011,003–

592Daviess County, KYKY104,89811,001–

593Ozaukee County, WIWI94,34610,996–

594Josephine County, OROR87,86710,992–

595Nassau County, FLFL106,87910,989–

596Newport News, VAVA183,23010,903–

597Marathon County, WIWI139,43210,892–

598Floyd County, ININ82,15310,884–

599Fayette County, GAGA125,15610,882–

600Muscogee County, GAGA202,17110,869–

601Fairbanks North Star, AKAK93,97210,868–

602Erie County, OHOH73,29610,803–

603Cascade County, MTMT85,02910,801–

604Lenawee County, MIMI97,77910,771–

605Story County, IAIA101,29110,771–

606Rutland County, VTVT59,65310,763–

607Wichita County, TXTX129,55510,752–

608Charles County, MDMD176,59310,690–

609Natrona County, WYWY80,52610,684–

610Indiana County, PAPA82,87810,665–

611Carroll County, NHNH52,78410,616–

612Macon County, ILIL99,30010,585–

613Armstrong County, PAPA63,69810,582–

614Livingston County, NYNY61,43810,545–

615Ouachita Parish, LALA158,54210,541–

616Moore County, NCNC110,61910,532–

617Fond du Lac County, WIWI104,66910,513–

618Leavenworth County, KSKS84,59010,511–

619Lancaster County, SCSC114,29610,491–

620Walton County, GAGA112,69610,490–

621Sheboygan County, WIWI118,04710,467–

622Kaufman County, TXTX209,23510,465–

623Washington County, VTVT59,65210,438–

624Allegan County, MIMI123,18810,407–

625Hunt County, TXTX123,33610,402–

626Morgan County, ALAL126,48310,399–

627Cabell County, WVWV91,18310,352–

628Genesee County, NYNY58,41610,317–

629Columbia County, NYNY60,16810,281–

630Midland County, MIMI83,75410,153–

631Clinton County, MIMI80,43210,044–

632Bay County, MIMI102,12310,039–

633James City County, VAVA83,32610,037–

634Tom Green County, TXTX120,60210,035–

635St. Clair County, ALAL98,20610,029–

636Northumberland County, PAPA89,92010,013–

637Lauderdale County, ALAL97,1359,939–

638Fauquier County, VAVA76,5039,924–

639Jefferson County, OHOH63,5979,905–

640Midland County, TXTX187,8559,823–

641Highlands County, FLFL111,1229,798–

642Carbon County, PAPA65,8689,793–

643Roanoke County, VAVA97,1509,793–

644Wagoner County, OKOK93,2639,758–

645Shiawassee County, MIMI67,6819,757–

646Muskingum County, OHOH87,0149,756–

647Madison County, KYKY101,6969,710–

648Merced County, CACA297,2609,662–

649Montgomery County, VAVA98,4349,652–

650Clearfield County, PAPA78,1009,571–

651Henderson County, TXTX88,5959,569–

652Windsor County, VTVT57,3129,566–

653Lake County, CACA67,7729,565–

654Wayne County, PAPA51,7039,553–

655Orange County, TXTX86,2669,549–

656Madison County, MSMS116,2989,544–

657Hancock County, MEME57,1719,543–

658Marion County, WVWV55,5849,538–

659Jefferson County, WIWI86,5059,535–

660Athens County, OHOH63,1979,531–

661Craven County, NCNC105,0259,490–

662Buchanan County, MOMO83,5409,468–

663Carroll County, GAGA131,0369,461–

664Oldham County, KYKY70,9869,411–

665Lincoln County, MOMO66,6769,362–

666Warrick County, ININ66,8039,347–

667Houston County, ALAL110,3189,319–

668Bartow County, GAGA120,8009,315–

669Bedford County, VAVA83,0599,305–

670Bristol County, RIRI50,0019,255–

671Greene County, NYNY47,2389,243–

672Polk County, OROR90,0379,242–

673Wayne County, NCNC122,2789,223–

674Bossier Parish, LALA131,8679,216–

675Monroe County, FLFL80,4069,204–

676Broomfield County, COCO79,1749,192–

677Otsego County, NYNY60,5899,178–

678Walton County, FLFL93,2889,165–

679Williamson County, ILIL67,2259,099–

680Hidalgo County, TXTX921,5499,096–

681Scioto County, OHOH71,3659,076–

682Lincoln County, NCNC98,6549,068–

683Oxford County, MEME60,3468,996–

684Walker County, GAGA70,2508,993–

685Chatham County, NCNC85,1118,979–

686Maui County, HIHI160,5928,956–

687Carteret County, NCNC70,4698,935–

688Grays Harbor County, WAWA78,1448,917–

689Lewis County, WAWA88,0628,913–

690Hancock County, ININ90,9698,909–

691Belmont County, OHOH64,4348,896–

692Silver Bow County, MTMT36,1188,873–

693Aroostook County, MEME66,6098,858–

694Faulkner County, ARAR133,9798,852–

695Tuolumne County, CACA53,1608,825–

696Union County, OHOH73,4468,817–

697Ascension Parish, LALA135,1058,809–

698Coos County, OROR63,9928,739–

699Dodge County, WIWI89,0978,704–

700Ross County, OHOH76,4298,695–

701Mendocino County, CACA88,1228,654–

702Pickaway County, OHOH62,9788,641–

703Warren County, IAIA57,3318,619–

704Elmore County, ALAL91,5778,611–

705Jefferson County, WVWV63,1028,592–

706Montgomery County, ALAL225,8918,571–

707Yuma County, AZAZ224,4498,560–

708Payne County, OKOK83,8898,560–

709Windham County, VTVT45,2048,558–

710Allegany County, MDMD66,8488,556–

711Kosciusko County, ININ80,8928,498–

712Etowah County, ALAL103,8868,486–

713La Plata County, COCO56,8988,456–

714Caldwell County, NCNC81,1058,422–

715Jackson County, GAGA99,2658,370–

716Columbia County, FLFL74,0948,361–

717Tioga County, NYNY47,4538,350–

718Venango County, PAPA49,3468,345–

719Coryell County, TXTX85,5928,341–

720Creek County, OKOK74,9678,337–

721Roanoke, VAVA99,1118,304–

722Twin Falls County, IDID97,5398,292–

723Hinds County, MSMS211,8888,288–

724Clallam County, WAWA78,2028,276–

725Cleveland County, NCNC103,3258,262–

726Camden County, GAGA60,1438,254–

727Burke County, NCNC88,6558,241–

728Van Buren County, MIMI76,0718,200–

729Isabella County, MIMI64,6918,191–

730Anderson County, TNTN82,0668,166–

731Crawford County, ARAR62,6578,147–

732Klamath County, OROR70,2748,146–

733Glynn County, GAGA87,5998,125–

734Richmond County, GAGA206,5598,113–

735Butler County, KSKS69,4848,095–

736Bradford County, PAPA59,6008,084–

737Augusta County, VAVA78,9408,048–

738Marion County, OHOH65,1158,046–

739Delaware County, NYNY44,3058,045–

740Washington County, OHOH58,3898,041–

741Sauk County, WIWI66,6528,036–

742Maury County, TNTN118,1318,024–

743McMinn County, TNTN57,4048,005–

744Bannock County, IDID91,5917,980–

745Calaveras County, CACA46,6057,968–

746Madera County, CACA167,9277,961–

747Sherburne County, MNMN104,1947,949–

748Mason County, WAWA71,1657,947–

749Robertson County, TNTN80,1757,945–

750Knox County, OHOH64,0027,863–

751Bonneville County, IDID135,7717,851–

752Somerset County, MEME51,6207,826–

753Angelina County, TXTX88,1547,793–

754York County, VAVA71,3747,791–

755Hampton, VAVA137,3157,778–

756Fulton County, NYNY52,2167,741–

757Queen Anne's County, MDMD54,4487,730–

758Worcester County, MDMD54,4597,716–

759Riley County, KSKS72,5987,711–

760Portage County, WIWI71,9437,690–

761Crow Wing County, MNMN69,1327,673–

762Lowndes County, GAGA122,8677,662–

763Grundy County, ILIL54,0527,651–

764Watauga County, NCNC54,7867,642–

765Manitowoc County, WIWI81,7107,623–

766Haywood County, NCNC63,3697,582–

767Clinton County, IAIA46,0027,575–

768Cortland County, NYNY45,8507,567–

769Burleigh County, NDND103,2517,553–

770Montcalm County, MIMI69,4067,539–

771Franklin County, VTVT51,1777,535–

772Whiteside County, ILIL54,1217,530–

773Putnam County, TNTN86,6127,525–

774Potter County, TXTX114,4537,525–

775Boone County, ININ80,6897,500–

776St. Francois County, MOMO67,8097,436–

777Susquehanna County, PAPA38,2377,436–

778Lawrence County, OHOH55,7107,434–

779Ionia County, MIMI66,5577,385–

780Wayne County, ININ66,1697,385–

781Taney County, MOMO57,0017,373–

782Hood County, TXTX70,5017,365–

783Shelby County, KYKY51,2437,353–

784Walker County, TXTX83,8427,291–

785Lyon County, NVNV65,0887,290–

786Garfield County, OKOK61,7797,264–

787Cumberland County, TNTN66,3007,260–

788Chenango County, NYNY45,7157,253–

789Scott County, KYKY62,2627,252–

790Columbia County, WIWI58,1327,251–

791Marshall County, ALAL103,5377,245–

792Pottawatomie County, OKOK75,1027,210–

793Florence County, SCSC138,5047,205–

794Rockingham County, NCNC94,1957,201–

795Lonoke County, ARAR76,6647,199–

796Greene County, TNTN73,8317,188–

797Mercer County, WVWV57,5037,168–

798Dickson County, TNTN58,6627,140–

799Allegany County, NYNY46,8007,125–

800Bulloch County, GAGA86,9497,122–

801Madison County, TNTN100,7907,109–

802Barrow County, GAGA99,7737,094–

803Cape Girardeau County, MOMO83,9997,086–

804Franklin County, NYNY46,5007,075–

805Howard County, ININ83,9047,051–

806Ogle County, ILIL51,3997,050–

807Somerset County, PAPA72,0047,047–

808Tehama County, CACA64,6657,038–

809Essex County, NYNY36,4387,021–

810Talladega County, ALAL81,6037,000–

811Cole County, MOMO77,9086,996–

812Lee County, MSMS83,7316,991–

813Catoosa County, GAGA69,6286,982–

814Grant County, WIWI52,4466,959–

815Rutherford County, NCNC65,7456,956–

816Gila County, AZAZ53,8016,948–

817Bennington County, VTVT36,6306,931–

818Pender County, NCNC72,1116,920–

819Pike County, KYKY54,7216,877–

820Franklin County, KYKY52,6496,865–

821Barry County, MIMI63,9916,862–

822Dearborn County, ININ51,6096,834–

823Navajo County, AZAZ109,9466,832–

824Cache County, UTUT145,0006,780–

825Grand Forks County, NDND74,5016,768–

826Marquette County, MIMI68,0646,760–

827Hancock County, OHOH75,0346,756–

828Knox County, ILIL47,7676,743–

829Columbia County, OROR54,0916,741–

830Wood County, WIWI74,0606,740–

831Boone County, ILIL53,5686,733–

832Bonner County, IDID54,4206,721–

833Ohio County, WVWV40,4966,679–

834Raleigh County, WVWV71,7756,677–

835Kenai Peninsula, AKAK61,9516,676–

836San Juan County, NMNM120,3406,673–

837Chelan County, WAWA81,9416,654–

838Coles County, ILIL46,6076,647–

839Blount County, ALAL60,1566,626–

840Rapides Parish, LALA125,8776,625–

841Douglas County, GAGA154,2936,621–

842Buffalo County, NENE51,1726,616–

843Forrest County, MSMS79,0346,614–

844Walker County, ALAL65,1406,600–

845Bastrop County, TXTX118,9086,597–

846White County, ARAR80,0856,592–

847Saline County, KSKS53,3776,589–

848Madison County, OHOH46,9856,574–

849Jefferson County, TNTN60,0246,549–

850Chisago County, MNMN59,1426,539–

851Coffee County, TNTN62,4196,536–

852Sutter County, CACA98,7876,532–

853DeKalb County, ALAL74,0856,526–

854Franklin County, NCNC82,0376,516–

855Waldo County, MEME40,6936,511–

856Douglas County, NVNV50,1116,509–

857Lincoln County, SDSD77,1456,507–

858Whitfield County, GAGA106,2126,504–

859Pulaski County, KYKY67,3846,495–

860Lamar County, MSMS67,4036,487–

861Carson City, NVNV58,5716,478–

862Nye County, NVNV57,3366,472–

863Kings County, CACA154,3276,468–

864Rice County, MNMN69,9396,460–

865Adams County, ILIL64,2676,457–

866Levy County, FLFL48,5206,435–

867Putnam County, WVWV56,8856,393–

868Roane County, TNTN57,3956,391–

869Umatilla County, OROR81,1196,381–

870Bartholomew County, ININ85,7296,378–

871Newton County, MOMO62,2636,351–

872Wyoming County, NYNY39,7416,347–

873Grant County, WAWA105,7276,345–

874Boyd County, KYKY47,7516,339–

875Georgetown County, SCSC65,9126,338–

876Huron County, OHOH58,2506,334–

877Walla Walla County, WAWA62,3616,315–

878Liberty County, TXTX121,3646,310–

879Tipton County, TNTN62,2876,287–

880Garfield County, COCO63,4746,271–

881Grant County, ININ66,5246,243–

882Huntingdon County, PAPA43,0016,239–

883Columbia County, PAPA66,1936,238–

884Talbot County, MDMD38,2386,224–

885Suffolk, VAVA104,6996,216–

886Wise County, TXTX83,7786,211–

887Loudon County, TNTN63,7646,205–

888Chippewa County, WIWI67,6146,199–

889Tuscola County, MIMI52,6806,190–

890Kittitas County, WAWA48,8036,186–

891Sandusky County, OHOH58,6556,172–

892Monroe County, TNTN49,7306,170–

893Guernsey County, OHOH38,3796,130–

894Putnam County, FLFL77,7346,107–

895Effingham County, GAGA74,3976,093–

896Blue Earth County, MNMN70,6346,074–

897Bowie County, TXTX92,6966,048–

898Amador County, CACA41,8766,032–

899Ward County, NDND68,2336,023–

900Jessamine County, KYKY57,1476,022–

901Johnson County, MOMO56,6706,021–

902Macoupin County, ILIL43,7486,003–

903Laurel County, KYKY63,7466,002–

904Grady County, OKOK59,1285,984–

905Le Flore County, OKOK50,1965,984–

906Whitman County, WAWA48,5125,971–

907Lincoln County, OROR50,6365,969–

908Pittsburg County, OKOK43,3205,964–

909Harrison County, TXTX71,9565,964–

910Henry County, ILIL48,0955,936–

911Hardin County, TXTX58,7235,932–

912Otero County, NMNM70,3685,928–

913Sumter County, SCSC105,0675,907–

914Addison County, VTVT38,0485,902–

915Clinton County, OHOH42,3015,899–

916Seneca County, OHOH54,5225,897–

917Baxter County, ARAR42,9825,895–

918Ector County, TXTX173,8015,871–

919Morgan County, ININ74,9675,868–

920Logan County, OHOH46,3025,855–

921Albany County, WYWY38,5585,833–

922Rockingham County, VAVA89,3165,832–

923Bibb County, GAGA157,5565,832–

924Logan County, OKOK55,4735,821–

925Hall County, NENE63,6335,816–

926Pierce County, WIWI43,5195,810–

927Ravalli County, MTMT48,5825,771–

928Montgomery County, NYNY50,0465,771–

929Laurens County, SCSC71,8485,771–

930Vermilion County, ILIL71,2595,770–

931Kerr County, TXTX54,0375,755–

932Sullivan County, NHNH43,9615,744–

933Ashland County, OHOH52,5235,735–

934McKean County, PAPA38,9845,719–

935Perry County, PAPA46,8065,716–

936Washington County, OKOK54,0375,713–

937Louisa County, VAVA42,9245,699–

938Warren County, VAVA42,7405,698–

939Stevens County, WAWA49,6685,697–

940Victoria County, TXTX92,6565,689–

941Stephenson County, ILIL43,2205,688–

942Gibson County, TNTN51,7795,683–

943Orange County, VAVA40,0835,661–

944Pope County, ARAR64,9765,637–

945Burnet County, TXTX57,0155,635–

946Bryan County, GAGA52,0625,628–

947Hawkins County, TNTN59,5595,620–

948Yuba County, CACA88,6915,612–

949Reno County, KSKS61,5395,586–

950Sagadahoc County, MEME37,9795,571–

951Surry County, NCNC72,2875,567–

952Van Zandt County, TXTX66,1305,561–

953Nacogdoches County, TXTX66,0355,556–

954McCracken County, KYKY67,5535,543–

955Pearl River County, MSMS59,3635,542–

956Mifflin County, PAPA46,1275,538–

957Nelson County, KYKY49,0365,516–

958Knox County, MEME41,1175,499–

959Anderson County, TXTX59,8055,481–

960Lawrence County, ININ45,5685,480–

961Jackson County, ILIL52,5015,467–

962Carter County, OKOK48,9105,443–

963Champaign County, OHOH38,8205,432–

964Autauga County, ALAL61,9205,427–

965Harrisonburg, VAVA50,8395,415–

966Boone County, ARAR38,6285,413–

967Siskiyou County, CACA42,0135,413–

968Cameron County, TXTX433,9465,404–

969Brown County, OHOH44,3975,372–

970Jefferson County, WAWA33,9705,353–

971Crawford County, KSKS39,0085,345–

972Lauderdale County, MSMS70,3175,330–

973Cass County, MIMI51,6775,329–

974Lee County, IAIA32,3065,328–

975Goodhue County, MNMN48,1955,316–

976Highland County, OHOH43,8235,292–

977Transylvania County, NCNC34,2115,290–

978Lincoln County, MEME36,5955,277–

979Orleans County, NYNY39,8255,274–

980Hancock County, MSMS46,8735,269–

981Kershaw County, SCSC73,1665,262–

982Seneca County, NYNY32,8835,242–

983Muskogee County, OKOK66,7085,241–

984Newton County, GAGA125,5835,240–

985Osage County, OKOK46,7945,234–

986Troup County, GAGA72,8445,232–

987Darke County, OHOH51,5205,228–

988Henry County, ININ49,1375,225–

989Ottawa County, OHOH39,4815,215–

990Camden County, MOMO44,0475,209–

991Wood County, TXTX49,6885,205–

992Bedford County, PAPA47,4805,204–

993Newaygo County, MIMI51,6225,197–

994Lee County, ILIL32,9145,192–

995Schoharie County, NYNY30,1765,182–

996Laclede County, MOMO36,9435,162–

997Jefferson County, PAPA43,2555,162–

998Stephens County, OKOK44,3105,146–

999Sanilac County, MIMI40,0835,145–

1000Fulton County, OHOH41,8535,109–

SHOWING 501–1,000 OF 3,144

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