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

2501Archer County, TXTX9,129726–

2502Ramsey County, NDND11,530725–

2503Mineral County, MTMT5,185723–

2504Marion County, SCSC28,242722–

2505Claiborne Parish, LALA13,354716–

2506Ellsworth County, KSKS6,257716–

2507Brunswick County, VAVA15,727711–

2508Kit Carson County, COCO7,069710–

2509Worth County, IAIA7,338710–

2510Webster County, WVWV7,760704–

2511Choctaw County, MSMS8,048701–

2512Wayne County, IAIA6,738701–

2513Furnas County, NENE4,524699–

2514Warren County, NCNC18,898692–

2515Frio County, TXTX18,823692–

2516Fairfield County, SCSC20,340690–

2517Uvalde County, TXTX24,963690–

2518Schoolcraft County, MIMI8,187689–

2519King and Queen County, VAVA6,743688–

2520Deaf Smith County, TXTX18,626684–

2521Ringgold County, IAIA4,642682–

2522Harney County, OROR7,380677–

2523Cedar County, NENE8,373675–

2524Lincoln County, ARAR12,764673–

2525Hartley County, TXTX4,904673–

2526Macon County, ALAL18,132671–

2527Tyler County, WVWV7,881670–

2528Washakie County, WYWY7,597670–

2529Rooks County, KSKS4,646670–

2530Lake County, COCO7,552669–

2531Wolfe County, KYKY6,298669–

2532Choctaw County, ALAL11,904667–

2533Wallowa County, OROR7,595667–

2534Murray County, MNMN7,942666–

2535Quay County, NMNM8,454665–

2536Bertie County, NCNC17,086659–

2537Coal County, OKOK5,436659–

2538Essex County, VAVA10,654656–

2539Johnson County, WYWY8,908654–

2540Wheeler County, TXTX4,773652–

2541Haywood County, TNTN17,042651–

2542Fillmore County, NENE5,458649–

2543McCook County, SDSD5,964649–

2544LaSalle Parish, LALA15,154648–

2545Carson County, TXTX5,805648–

2546Marion County, TXTX9,896647–

2547Dodge County, GAGA19,663647–

2548Putnam County, ILIL5,619647–

2549Kingman County, KSKS7,029647–

2550Custer County, COCO5,590643–

2551Beaver County, UTUT7,301642–

2552Okfuskee County, OKOK11,451641–

2553Big Horn County, MTMT12,752640–

2554Mitchell County, KSKS5,590640–

2555Cuming County, NENE8,823635–

2556Crawford County, GAGA12,206635–

2557Irwin County, GAGA9,020633–

2558Kearney County, NENE6,790632–

2559Atchison County, MOMO5,175631–

2560Lake County, TNTN6,249631–

2561McCulloch County, TXTX7,472631–

2562Brewster County, TXTX9,458629–

2563McLean County, KYKY9,064629–

2564Scotland County, NCNC33,322628–

2565Bon Homme County, SDSD7,244628–

2566Red River Parish, LALA7,165626–

2567Toole County, MTMT5,211626–

2568Ouray County, COCO5,265625–

2569Morris County, KSKS5,348625–

2570Van Buren County, TNTN6,874624–

2571Graham County, NCNC8,190624–

2572Green County, KYKY11,644624–

2573Jackson County, KYKY13,325624–

2574Perry County, TNTN9,126623–

2575Washington County, COCO4,732622–

2576Nottoway County, VAVA15,796620–

2577Taylor County, IAIA5,835618–

2578Lamb County, TXTX12,579618–

2579Chouteau County, MTMT5,865614–

2580Dewey County, OKOK4,207614–

2581Alfalfa County, OKOK5,649613–

2582Terry County, TXTX11,720613–

2583Brown County, ILIL6,401611–

2584Jefferson County, GAGA15,011609–

2585Lee County, KYKY7,297608–

2586Monroe County, ARAR6,244606–

2587Gentry County, MOMO6,384606–

2588Prairie County, ARAR7,923604–

2589Pondera County, MTMT6,072604–

2590Storey County, NVNV4,260604–

2591Candler County, GAGA11,275604–

2592Winnebago County, IAIA10,251604–

2593San Miguel County, NMNM26,260603–

2594Grant County, SDSD7,534603–

2595Gray County, KSKS5,652602–

2596Ontonagon County, MIMI5,823601–

2597Ida County, IAIA6,777599–

2598Calhoun County, SCSC14,188597–

2599Florence County, WIWI4,748597–

2600Pierce County, NENE7,378597–

2601Greensville County, VAVA11,181596–

2602Sheridan County, NENE4,809596–

2603Hale County, ALAL15,194595–

2604White Pine County, NVNV8,661594–

2605Treutlen County, GAGA6,466593–

2606Fallon County, MTMT2,959592–

2607Iron County, WIWI6,127592–

2608Craig County, VAVA4,800590–

2609Benton County, MSMS7,502589–

2610Pepin County, WIWI7,513589–

2611Johnson County, GAGA9,310589–

2612Roseau County, MNMN15,246588–

2613Cook County, MNMN5,522585–

2614Edwards County, ILIL5,898585–

2615Jenkins County, GAGA8,843583–

2616Bland County, VAVA6,151582–

2617Adams County, IDID5,013582–

2618Covington, VAVA5,680580–

2619Baraga County, MIMI8,169578–

2620Coahoma County, MSMS19,849578–

2621Martin County, NCNC21,601576–

2622Union County, ININ6,863574–

2623Adams County, IAIA3,617574–

2624Nance County, NENE3,290573–

2625Morgan County, UTUT13,383571–

2626Socorro County, NMNM15,838570–

2627Pembina County, NDND6,568570–

2628Charles Mix County, SDSD9,303569–

2629Somervell County, TXTX10,261569–

2630Atkinson County, GAGA8,454569–

2631Republic County, KSKS4,640569–

2632Scott County, ILIL4,866568–

2633Tallahatchie County, MSMS10,877563–

2634Mineral County, NVNV4,407563–

2635Cumberland County, KYKY5,992563–

2636Rock County, MNMN9,524562–

2637Quitman County, MSMS5,364562–

2638Coosa County, ALAL10,161560–

2639Hickman County, KYKY4,372560–

2640McHenry County, NDND5,130560–

2641Dawson County, TXTX11,776558–

2642Hughes County, OKOK13,455557–

2643Conejos County, COCO7,529557–

2644Phillips County, KSKS4,728557–

2645Holt County, MOMO4,200556–

2646Clearwater County, MNMN8,647554–

2647Lincoln County, COCO5,645554–

2648Morris County, TXTX12,133553–

2649Newton County, TXTX11,954552–

2650Greeley County, NENE2,154552–

2651Mercer County, NDND8,441550–

2652San Juan County, UTUT14,542550–

2653Pipestone County, MNMN9,260547–

2654Real County, TXTX2,745546–

2655Breathitt County, KYKY12,558546–

2656Roger Mills County, OKOK3,259545–

2657Cumberland County, VAVA10,352545–

2658Monroe County, KYKY11,191545–

2659Petersburg, VAVA33,734544–

2660Harper County, KSKS5,370541–

2661Gates County, NCNC10,234540–

2662Wilkinson County, GAGA8,650539–

2663Hardin County, ILIL3,588539–

2664Menifee County, KYKY6,430538–

2665Osceola County, IAIA5,980535–

2666Jack County, TXTX9,563533–

2667Ellis County, OKOK3,613532–

2668Kimble County, TXTX4,438531–

2669Watonwan County, MNMN11,459529–

2670Bleckley County, GAGA12,866528–

2671Musselshell County, MTMT5,582527–

2672Yellow Medicine County, MNMN9,477526–

2673Big Stone County, MNMN5,054525–

2674Millard County, UTUT14,057524–

2675Russell County, KSKS6,581522–

2676Custer County, IDID4,636521–

2677Harper County, OKOK3,172521–

2678Hot Springs County, WYWY4,600518–

2679Jefferson County, NENE7,070517–

2680Colfax County, NENE10,934516–

2681Kingsbury County, SDSD5,284516–

2682Hancock County, TNTN7,075516–

2683Lander County, NVNV5,872511–

2684Sullivan County, MOMO5,738511–

2685Lunenburg County, VAVA12,058510–

2686Walsh County, NDND10,179509–

2687Pulaski County, GAGA10,172505–

2688Marshall County, MNMN8,798504–

2689Bottineau County, NDND6,284500–

2690Kimball County, NENE3,391498–

2691Sweet Grass County, MTMT3,762497–

2692Chariton County, MOMO7,377496–

2693Alleghany County, NCNC11,479494–

2694Grant County, OROR7,075494–

2695Hutchinson County, SDSD7,413493–

2696Newton County, ARAR7,026492–

2697Lawrence County, MSMS11,819491–

2698Martinsville, VAVA13,849491–

2699Childress County, TXTX6,643488–

2700Chickasaw County, MSMS16,730484–

2701Bath County, VAVA4,076484–

2702Power County, IDID8,246484–

2703Johnson County, NENE5,218481–

2704Mitchell County, TXTX8,947476–

2705Marion County, GAGA7,676476–

2706Walthall County, MSMS13,928475–

2707Polk County, NENE5,270469–

2708Sumter County, ALAL11,588467–

2709Scott County, KSKS4,815465–

2710Chase County, NENE3,718465–

2711Sussex County, VAVA10,755463–

2712Grant County, KSKS7,028463–

2713Donley County, TXTX3,213459–

2714Fulton County, KYKY6,218458–

2715Phillips County, MTMT4,203457–

2716Granite County, MTMT3,658454–

2717Lincoln County, KSKS2,861454–

2718Juab County, UTUT13,567453–

2719Rio Arriba County, NMNM39,832452–

2720Garfield County, UTUT5,256451–

2721Washington County, KSKS5,533450–

2722Fisher County, TXTX3,692448–

2723Carlisle County, KYKY4,747448–

2724Noxubee County, MSMS9,798447–

2725Pickett County, TNTN5,219446–

2726Delta County, TXTX5,549445–

2727Traill County, NDND7,920444–

2728Swisher County, TXTX6,703444–

2729Ochiltree County, TXTX9,284437–

2730Assumption Parish, LALA19,720435–

2731Dallam County, TXTX7,508435–

2732Haskell County, TXTX5,499433–

2733Norton, VAVA3,477432–

2734Brown County, NENE2,826431–

2735Mills County, TXTX4,580431–

2736Lewis County, IDID3,704431–

2737Decatur County, KSKS2,716428–

2738Wilcox County, GAGA8,797428–

2739Cameron County, PAPA4,211427–

2740Hemphill County, TXTX3,083426–

2741Chautauqua County, KSKS3,321424–

2742Lincoln County, GAGA8,112423–

2743Morrill County, NENE4,404422–

2744Franklin County, IDID15,889421–

2745Audubon County, IAIA5,509419–

2746Shelby County, MOMO5,870418–

2747Moody County, SDSD6,632417–

2748Smith County, KSKS3,566417–

2749Floyd County, TXTX4,881417–

2750Jefferson Davis County, MSMS10,941414–

2751Walworth County, SDSD5,217414–

2752Meade County, KSKS3,852414–

2753Pope County, ILIL3,672410–

2754Jasper County, MSMS15,785409–

2755Deuel County, SDSD4,408409–

2756Clinch County, GAGA6,847408–

2757Schuyler County, MOMO4,140407–

2758Lincoln County, MNMN5,583405–

2759Wilkinson County, MSMS7,582402–

2760Terrell County, GAGA8,656400–

2761Crowley County, COCO5,677400–

2762Desha County, ARAR9,984397–

2763Roosevelt County, MTMT10,242397–

2764Thayer County, NENE4,842396–

2765Brule County, SDSD5,278394–

2766Lee County, SCSC15,730393–

2767Lyman County, SDSD3,694393–

2768Wahkiakum County, WAWA4,873393–

2769Franklin County, MSMS7,491392–

2770Thurston County, NENE6,752390–

2771Lac qui Parle County, MNMN6,704389–

2772Marshall County, SDSD4,426387–

2773Niobrara County, WYWY2,341383–

2774La Salle County, TXTX6,517381–

2775Lynn County, TXTX6,017379–

2776Bent County, COCO5,716378–

2777Union County, NMNM3,844375–

2778Turner County, GAGA8,983375–

2779Pulaski County, ILIL4,820373–

2780Stevens County, KSKS4,984372–

2781Leflore County, MSMS25,686371–

2782Montgomery County, MSMS9,354371–

2783Ransom County, NDND5,617370–

2784Grant County, OKOK4,067370–

2785Columbia County, WAWA4,141370–

2786Baylor County, TXTX3,472368–

2787Stafford County, KSKS4,005368–

2788Collingsworth County, TXTX2,487368–

2789McLean County, NDND9,740367–

2790Knox County, TXTX3,192367–

2791Hampton County, SCSC18,174366–

2792Webster County, NENE3,336365–

2793Bradley County, ARAR9,828364–

2794Sherman County, NENE2,924364–

2795Surry County, VAVA6,603363–

2796Barnwell County, SCSC20,653363–

2797Galax, VAVA6,670363–

2798Washington County, NCNC10,638361–

2799Parmer County, TXTX9,678361–

2800Osborne County, KSKS3,285361–

2801Perkins County, SDSD2,853360–

2802Lafayette County, ARAR5,888358–

2803Menard County, TXTX1,956358–

2804Ward County, TXTX11,125358–

2805Shackelford County, TXTX3,197357–

2806Meagher County, MTMT2,137355–

2807Valley County, NENE4,094354–

2808Faulk County, SDSD2,178354–

2809Roberts County, SDSD10,255353–

2810Judith Basin County, MTMT2,162352–

2811Woodson County, KSKS3,118352–

2812Chicot County, ARAR9,107351–

2813Haines, AKAK2,068350–

2814Barber County, KSKS4,083350–

2815Hamlin County, SDSD6,900346–

2816Pecos County, TXTX14,560346–

2817Mercer County, MOMO3,404345–

2818Kidder County, NDND2,393344–

2819Presidio County, TXTX5,433344–

2820Garfield County, NENE1,710343–

2821Hyde County, NCNC4,554341–

2822Dallas County, ARAR6,011338–

2823Calhoun County, ILIL4,300338–

2824Hand County, SDSD3,121333–

2825Calhoun County, ARAR4,632332–

2826Sierra County, CACA3,098332–

2827Sheridan County, MTMT3,436332–

2828Baca County, COCO3,347332–

2829Alexander County, ILIL4,570332–

2830Coke County, TXTX3,412332–

2831Madison Parish, LALA8,844330–

2832Willacy County, TXTX19,971330–

2833Perkins County, NENE2,849327–

2834Nuckolls County, NENE4,100327–

2835Tunica County, MSMS8,819325–

2836Sargent County, NDND3,711325–

2837Jewell County, KSKS2,830324–

2838Hidalgo County, NMNM3,929323–

2839Clark County, SDSD4,031322–

2840Pawnee County, NENE2,510321–

2841Echols County, GAGA3,685321–

2842Kittson County, MNMN4,031318–

2843Stanton County, NENE5,744318–

2844Wilkes County, GAGA9,540316–

2845Grant County, MNMN6,085315–

2846Lipscomb County, TXTX2,955315–

2847Putnam County, MOMO4,546314–

2848Dickey County, NDND4,895312–

2849Early County, GAGA10,455312–

2850Comanche County, KSKS1,673312–

2851Taylor County, GAGA7,818311–

2852Bear Lake County, IDID6,727311–

2853Crosby County, TXTX4,852310–

2854Nome Census Area, AKAK9,830307–

2855Wheatland County, MTMT2,100304–

2856Day County, SDSD5,484304–

2857Gregory County, SDSD4,037303–

2858Stanley County, SDSD3,018300–

2859Talbot County, GAGA5,709299–

2860Tensas Parish, LALA3,700298–

2861Hancock County, GAGA8,682298–

2862Kemper County, MSMS8,600295–

2863Concho County, TXTX3,607293–

2864Dooly County, GAGA11,156291–

2865Lincoln County, IDID5,603291–

2866Wilkin County, MNMN6,288290–

2867Scotland County, MOMO4,796290–

2868Edmunds County, SDSD4,022290–

2869Mora County, NMNM4,051289–

2870Hansford County, TXTX4,944287–

2871Castro County, TXTX7,295286–

2872Frontier County, NENE2,655285–

2873Norman County, MNMN6,336283–

2874Catron County, NMNM3,827283–

2875Woodruff County, ARAR5,710282–

2876Douglas County, SDSD2,888282–

2877Cheyenne County, KSKS2,604282–

2878Gove County, KSKS2,631282–

2879Graham County, KSKS2,371281–

2880Skagway, AKAK1,104279–

2881LaMoure County, NDND4,135278–

2882Wrangell, AKAK2,007277–

2883Benson County, NDND5,759277–

2884Gilliam County, OROR1,971277–

2885Winkler County, TXTX7,540277–

2886Trego County, KSKS2,740277–

2887Wayne County, UTUT2,587276–

2888Phillips County, COCO4,420275–

2889Lee County, ARAR8,029274–

2890Humphreys County, MSMS7,001274–

2891Blaine County, MTMT6,860274–

2892Elk County, KSKS2,458274–

2893Logan County, KSKS2,661271–

2894Garden County, NENE1,804269–

2895Charles City County, VAVA6,623269–

2896Worth County, MOMO1,914268–

2897Petersburg, AKAK3,394264–

2898Cheyenne County, COCO1,713262–

2899Gosper County, NENE1,803261–

2900Bennett County, SDSD3,307260–

2901Garfield County, WAWA2,416259–

2902Garza County, TXTX4,510258–

2903Kiowa County, COCO1,412258–

2904Miller County, GAGA5,812258–

2905Copper River Census Area, AKAK2,666257–

2906Martin County, TXTX5,284257–

2907Carroll County, MSMS9,226255–

2908Telfair County, GAGA11,195255–

2909Clark County, KSKS1,900253–

2910Haskell County, KSKS3,599253–

2911Sherman County, TXTX2,781252–

2912Sheridan County, KSKS2,427252–

2913Greene County, ALAL7,067251–

2914Red Lake County, MNMN3,940251–

2915Traverse County, MNMN3,130250–

2916Cavalier County, NDND3,497249–

2917Lafayette County, FLFL8,792249–

2918Hodgeman County, KSKS1,619249–

2919Chase County, KSKS2,572248–

2920Hanson County, SDSD3,456247–

2921Oldham County, TXTX1,783247–

2922Caribou County, IDID7,252246–

2923Kiowa County, KSKS2,432246–

2924Daniels County, MTMT1,612244–

2925Harlan County, NENE3,000243–

2926Knox County, MOMO3,728242–

2927Greenlee County, AZAZ9,312241–

2928Foster County, NDND3,212241–

2929Lake of the Woods County, MNMN3,770241–

2930Jackson County, SDSD2,666241–

2931Powder River County, MTMT1,781240–

2932Throckmorton County, TXTX1,554239–

2933Highland County, VAVA2,318239–

2934Ness County, KSKS2,617239–

2935Bethel Census Area, AKAK18,391238–

2936East Carroll Parish, LALA6,760238–

2937Dunn County, NDND4,058237–

2938Denali, AKAK1,616236–

2939Rush County, KSKS2,845234–

2940Jefferson County, MSMS6,825233–

2941De Baca County, NMNM1,647233–

2942Hitchcock County, NENE2,467231–

2943Dimmit County, TXTX8,024231–

2944St. James Parish, LALA18,938231–

2945North Slope, AKAK10,582230–

2946Tyrrell County, NCNC3,537230–

2947Zavala County, TXTX9,037230–

2948Nelson County, NDND2,963229–

2949Aleutians West Census Area, AKAK5,240227–

2950Wheeler County, OROR1,472226–

2951Burke County, NDND2,132224–

2952Yoakum County, TXTX7,438224–

2953McPherson County, SDSD2,347223–

2954Jerauld County, SDSD1,654222–

2955Pendleton County, WVWV5,826222–

2956Duval County, TXTX9,402220–

2957Rolette County, NDND11,688220–

2958Cottle County, TXTX1,224220–

2959Kinney County, TXTX3,128219–

2960Kearny County, KSKS3,888219–

2961Morton County, KSKS2,470218–

2962Motley County, TXTX1,043216–

2963Owsley County, KYKY3,932216–

2964Cameron Parish, LALA4,718215–

2965Perry County, ALAL7,425212–

2966Golden Valley County, NDND1,808212–

2967Robertson County, KYKY2,325211–

2968Sterling County, TXTX1,349209–

2969Eddy County, NDND2,329208–

2970Mahnomen County, MNMN5,153208–

2971Dolores County, COCO2,466208–

2972Edwards County, KSKS2,640207–

2973Wichita County, KSKS2,031206–

2974Seminole County, GAGA9,162205–

2975Pierce County, NDND3,838203–

2976Wheeler County, GAGA7,570203–

2977Franklin County, NENE2,795202–

2978Rawlins County, KSKS2,431202–

2979Hall County, TXTX2,737201–

2980Quitman County, GAGA2,254200–

2981Franklin, VAVA8,478199–

2982Boyd County, NENE1,674195–

2983Rock County, NENE1,259194–

2984Eureka County, NVNV1,867193–

2985Deuel County, NENE1,862192–

2986Dillingham Census Area, AKAK4,483191–

2987Hettinger County, NDND2,492191–

2988McCone County, MTMT1,720188–

2989Potter County, SDSD2,377187–

2990Haakon County, SDSD1,802185–

2991Towner County, NDND2,040184–

2992Jeff Davis County, TXTX1,711182–

2993Yukon-Koyukuk Census Area, AKAK5,028180–

2994Dundy County, NENE1,568173–

2995Harmon County, OKOK2,327172–

2996Hyde County, SDSD1,191172–

2997Maverick County, TXTX58,823172–

2998Glascock County, GAGA3,141172–

2999Northwest Arctic, AKAK7,095171–

3000Sanborn County, SDSD2,388171–

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