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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 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV.

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RANKPLACESTATEPOPIRISH POPULATIONVS 2010
2501Archer County, TXTX9,129726−47%
2502Ramsey County, NDND11,530725−9%
2503Mineral County, MTMT5,185723+2%
2504Marion County, SCSC28,242722−59%
2505Claiborne Parish, LALA13,354716−51%
2506Ellsworth County, KSKS6,257716−16%
2507Brunswick County, VAVA15,727711−19%
2508Kit Carson County, COCO7,069710−6%
2509Worth County, IAIA7,338710−24%
2510Webster County, WVWV7,760704−51%
2511Choctaw County, MSMS8,048701−61%
2512Wayne County, IAIA6,738701−21%
2513Furnas County, NENE4,524699−5%
2514Warren County, NCNC18,898692−11%
2515Frio County, TXTX18,823692+67%
2516Fairfield County, SCSC20,340690−47%
2517Uvalde County, TXTX24,963690−49%
2518Schoolcraft County, MIMI8,187689−21%
2519King and Queen County, VAVA6,743688+36%
2520Deaf Smith County, TXTX18,626684−41%
2521Ringgold County, IAIA4,642682−24%
2522Harney County, OROR7,380677−39%
2523Cedar County, NENE8,373675−16%
2524Lincoln County, ARAR12,764673−58%
2525Hartley County, TXTX4,904673−30%
2526Macon County, ALAL18,132671+38%
2527Tyler County, WVWV7,881670−44%
2528Washakie County, WYWY7,597670−31%
2529Rooks County, KSKS4,646670−20%
2530Lake County, COCO7,552669−18%
2531Wolfe County, KYKY6,298669−19%
2532Choctaw County, ALAL11,904667−32%
2533Wallowa County, OROR7,595667−34%
2534Murray County, MNMN7,942666−8%
2535Quay County, NMNM8,454665−25%
2536Bertie County, NCNC17,086659−24%
2537Coal County, OKOK5,436659−28%
2538Essex County, VAVA10,654656−36%
2539Johnson County, WYWY8,908654−65%
2540Wheeler County, TXTX4,773652−10%
2541Haywood County, TNTN17,042651−50%
2542Fillmore County, NENE5,458649−3%
2543McCook County, SDSD5,964649−10%
2544LaSalle Parish, LALA15,154648−72%
2545Carson County, TXTX5,805648−36%
2546Marion County, TXTX9,896647−54%
2547Dodge County, GAGA19,663647−10%
2548Putnam County, ILIL5,619647−35%
2549Kingman County, KSKS7,029647−34%
2550Custer County, COCO5,590643−6%
2551Beaver County, UTUT7,301642−6%
2552Okfuskee County, OKOK11,451641−66%
2553Big Horn County, MTMT12,752640+4%
2554Mitchell County, KSKS5,590640−20%
2555Cuming County, NENE8,823635−1%
2556Crawford County, GAGA12,206635−50%
2557Irwin County, GAGA9,020633−30%
2558Kearney County, NENE6,790632−28%
2559Atchison County, MOMO5,175631−28%
2560Lake County, TNTN6,249631−25%
2561McCulloch County, TXTX7,472631+21%
2562Brewster County, TXTX9,458629−20%
2563McLean County, KYKY9,064629−28%
2564Scotland County, NCNC33,322628−63%
2565Bon Homme County, SDSD7,244628+14%
2566Red River Parish, LALA7,165626−50%
2567Toole County, MTMT5,211626−31%
2568Ouray County, COCO5,265625−38%
2569Morris County, KSKS5,348625−13%
2570Van Buren County, TNTN6,874624+9%
2571Graham County, NCNC8,190624−49%
2572Green County, KYKY11,644624−45%
2573Jackson County, KYKY13,325624−47%
2574Perry County, TNTN9,126623−36%
2575Washington County, COCO4,732622−3%
2576Nottoway County, VAVA15,796620−23%
2577Taylor County, IAIA5,835618−39%
2578Lamb County, TXTX12,579618−29%
2579Chouteau County, MTMT5,865614−18%
2580Dewey County, OKOK4,207614−15%
2581Alfalfa County, OKOK5,649613−13%
2582Terry County, TXTX11,720613−2%
2583Brown County, ILIL6,401611−30%
2584Jefferson County, GAGA15,011609−10%
2585Lee County, KYKY7,297608−28%
2586Monroe County, ARAR6,244606−46%
2587Gentry County, MOMO6,384606−26%
2588Prairie County, ARAR7,923604−39%
2589Pondera County, MTMT6,072604−25%
2590Storey County, NVNV4,260604−25%
2591Candler County, GAGA11,275604−47%
2592Winnebago County, IAIA10,251604−33%
2593San Miguel County, NMNM26,260603−45%
2594Grant County, SDSD7,534603−8%
2595Gray County, KSKS5,652602+87%
2596Ontonagon County, MIMI5,823601−20%
2597Ida County, IAIA6,777599−45%
2598Calhoun County, SCSC14,188597−54%
2599Florence County, WIWI4,748597+10%
2600Pierce County, NENE7,378597−4%
2601Greensville County, VAVA11,181596+165%
2602Sheridan County, NENE4,809596−14%
2603Hale County, ALAL15,194595−23%
2604White Pine County, NVNV8,661594−42%
2605Treutlen County, GAGA6,466593+6%
2606Fallon County, MTMT2,959592−15%
2607Iron County, WIWI6,127592+1%
2608Craig County, VAVA4,800590−24%
2609Benton County, MSMS7,502589−44%
2610Pepin County, WIWI7,513589−19%
2611Johnson County, GAGA9,310589−33%
2612Roseau County, MNMN15,246588−47%
2613Cook County, MNMN5,522585+2%
2614Edwards County, ILIL5,898585+4%
2615Jenkins County, GAGA8,843583−6%
2616Bland County, VAVA6,151582−30%
2617Adams County, IDID5,013582+1%
2618Covington, VAVA5,680580−14%
2619Baraga County, MIMI8,169578−22%
2620Coahoma County, MSMS19,849578−54%
2621Martin County, NCNC21,601576−51%
2622Union County, ININ6,863574−52%
2623Adams County, IAIA3,617574−13%
2624Nance County, NENE3,2905730%
2625Morgan County, UTUT13,383571+48%
2626Socorro County, NMNM15,838570−35%
2627Pembina County, NDND6,568570−29%
2628Charles Mix County, SDSD9,303569+22%
2629Somervell County, TXTX10,261569−51%
2630Atkinson County, GAGA8,454569−57%
2631Republic County, KSKS4,640569−4%
2632Scott County, ILIL4,866568−35%
2633Tallahatchie County, MSMS10,877563−50%
2634Mineral County, NVNV4,407563−15%
2635Cumberland County, KYKY5,992563+27%
2636Rock County, MNMN9,524562−7%
2637Quitman County, MSMS5,364562−19%
2638Coosa County, ALAL10,161560−26%
2639Hickman County, KYKY4,372560−9%
2640McHenry County, NDND5,130560+120%
2641Dawson County, TXTX11,776558−27%
2642Hughes County, OKOK13,455557−74%
2643Conejos County, COCO7,529557−3%
2644Phillips County, KSKS4,728557−22%
2645Holt County, MOMO4,200556−12%
2646Clearwater County, MNMN8,6475540%
2647Lincoln County, COCO5,645554−14%
2648Morris County, TXTX12,133553−70%
2649Newton County, TXTX11,954552−74%
2650Greeley County, NENE2,154552−31%
2651Mercer County, NDND8,441550+7%
2652San Juan County, UTUT14,542550−19%
2653Pipestone County, MNMN9,260547−28%
2654Real County, TXTX2,745546−3%
2655Breathitt County, KYKY12,558546−54%
2656Roger Mills County, OKOK3,259545−29%
2657Cumberland County, VAVA10,352545−27%
2658Monroe County, KYKY11,191545−38%
2659Petersburg, VAVA33,734544−13%
2660Harper County, KSKS5,370541−19%
2661Gates County, NCNC10,234540−28%
2662Wilkinson County, GAGA8,650539+21%
2663Hardin County, ILIL3,588539−54%
2664Menifee County, KYKY6,430538−52%
2665Osceola County, IAIA5,980535+8%
2666Jack County, TXTX9,563533−43%
2667Ellis County, OKOK3,613532−25%
2668Kimble County, TXTX4,438531+24%
2669Watonwan County, MNMN11,459529−42%
2670Bleckley County, GAGA12,866528−35%
2671Musselshell County, MTMT5,582527−25%
2672Yellow Medicine County, MNMN9,477526−26%
2673Big Stone County, MNMN5,054525−12%
2674Millard County, UTUT14,057524−8%
2675Russell County, KSKS6,581522−52%
2676Custer County, IDID4,636521−37%
2677Harper County, OKOK3,172521+2%
2678Hot Springs County, WYWY4,600518−28%
2679Jefferson County, NENE7,070517−33%
2680Colfax County, NENE10,934516−27%
2681Kingsbury County, SDSD5,284516+4%
2682Hancock County, TNTN7,075516−6%
2683Lander County, NVNV5,872511−25%
2684Sullivan County, MOMO5,738511−42%
2685Lunenburg County, VAVA12,058510−44%
2686Walsh County, NDND10,179509−52%
2687Pulaski County, GAGA10,172505−43%
2688Marshall County, MNMN8,798504−27%
2689Bottineau County, NDND6,284500+2%
2690Kimball County, NENE3,391498−13%
2691Sweet Grass County, MTMT3,762497+4%
2692Chariton County, MOMO7,377496−49%
2693Alleghany County, NCNC11,479494−45%
2694Grant County, OROR7,075494−47%
2695Hutchinson County, SDSD7,413493−4%
2696Newton County, ARAR7,026492−56%
2697Lawrence County, MSMS11,819491−63%
2698Martinsville, VAVA13,849491−52%
2699Childress County, TXTX6,643488−34%
2700Chickasaw County, MSMS16,730484−66%
2701Bath County, VAVA4,076484+31%
2702Power County, IDID8,246484+39%
2703Johnson County, NENE5,218481−25%
2704Mitchell County, TXTX8,947476−34%
2705Marion County, GAGA7,676476−47%
2706Walthall County, MSMS13,928475−60%
2707Polk County, NENE5,270469−24%
2708Sumter County, ALAL11,588467−11%
2709Scott County, KSKS4,815465−29%
2710Chase County, NENE3,718465−37%
2711Sussex County, VAVA10,755463−19%
2712Grant County, KSKS7,028463−39%
2713Donley County, TXTX3,213459−4%
2714Fulton County, KYKY6,218458−28%
2715Phillips County, MTMT4,203457−19%
2716Granite County, MTMT3,658454−26%
2717Lincoln County, KSKS2,861454−14%
2718Juab County, UTUT13,567453−6%
2719Rio Arriba County, NMNM39,832452−58%
2720Garfield County, UTUT5,256451−10%
2721Washington County, KSKS5,533450+18%
2722Fisher County, TXTX3,692448+14%
2723Carlisle County, KYKY4,747448−26%
2724Noxubee County, MSMS9,798447−29%
2725Pickett County, TNTN5,219446−11%
2726Delta County, TXTX5,549445−54%
2727Traill County, NDND7,920444−8%
2728Swisher County, TXTX6,703444−38%
2729Ochiltree County, TXTX9,284437−57%
2730Assumption Parish, LALA19,720435−20%
2731Dallam County, TXTX7,508435−49%
2732Haskell County, TXTX5,499433−50%
2733Norton, VAVA3,477432−25%
2734Brown County, NENE2,826431+4%
2735Mills County, TXTX4,580431−32%
2736Lewis County, IDID3,704431−31%
2737Decatur County, KSKS2,716428−24%
2738Wilcox County, GAGA8,797428−53%
2739Cameron County, PAPA4,211427−43%
2740Hemphill County, TXTX3,083426−4%
2741Chautauqua County, KSKS3,321424−17%
2742Lincoln County, GAGA8,112423+12%
2743Morrill County, NENE4,404422−51%
2744Franklin County, IDID15,889421+4%
2745Audubon County, IAIA5,509419−35%
2746Shelby County, MOMO5,870418−54%
2747Moody County, SDSD6,632417−28%
2748Smith County, KSKS3,566417−2%
2749Floyd County, TXTX4,881417+22%
2750Jefferson Davis County, MSMS10,941414−39%
2751Walworth County, SDSD5,217414+41%
2752Meade County, KSKS3,852414−43%
2753Pope County, ILIL3,672410−52%
2754Jasper County, MSMS15,785409−66%
2755Deuel County, SDSD4,408409+17%
2756Clinch County, GAGA6,847408−26%
2757Schuyler County, MOMO4,140407−32%
2758Lincoln County, MNMN5,583405−29%
2759Wilkinson County, MSMS7,582402−55%
2760Terrell County, GAGA8,656400−18%
2761Crowley County, COCO5,677400−16%
2762Desha County, ARAR9,984397−49%
2763Roosevelt County, MTMT10,242397−36%
2764Thayer County, NENE4,842396−21%
2765Brule County, SDSD5,278394−35%
2766Lee County, SCSC15,730393−16%
2767Lyman County, SDSD3,694393+14%
2768Wahkiakum County, WAWA4,873393+45%
2769Franklin County, MSMS7,491392−61%
2770Thurston County, NENE6,752390−14%
2771Lac qui Parle County, MNMN6,704389−10%
2772Marshall County, SDSD4,426387+44%
2773Niobrara County, WYWY2,341383−11%
2774La Salle County, TXTX6,517381+61%
2775Lynn County, TXTX6,017379−10%
2776Bent County, COCO5,716378−36%
2777Union County, NMNM3,844375−17%
2778Turner County, GAGA8,983375−32%
2779Pulaski County, ILIL4,820373−12%
2780Stevens County, KSKS4,984372+26%
2781Leflore County, MSMS25,686371−63%
2782Montgomery County, MSMS9,354371−67%
2783Ransom County, NDND5,617370−27%
2784Grant County, OKOK4,067370−56%
2785Columbia County, WAWA4,141370−24%
2786Baylor County, TXTX3,472368−21%
2787Stafford County, KSKS4,005368−32%
2788Collingsworth County, TXTX2,487368−6%
2789McLean County, NDND9,740367−36%
2790Knox County, TXTX3,192367−19%
2791Hampton County, SCSC18,174366−73%
2792Webster County, NENE3,336365−8%
2793Bradley County, ARAR9,828364−61%
2794Sherman County, NENE2,924364−22%
2795Surry County, VAVA6,603363−19%
2796Barnwell County, SCSC20,653363−66%
2797Galax, VAVA6,670363−45%
2798Washington County, NCNC10,638361−45%
2799Parmer County, TXTX9,678361−62%
2800Osborne County, KSKS3,285361−26%
2801Perkins County, SDSD2,853360+38%
2802Lafayette County, ARAR5,888358−58%
2803Menard County, TXTX1,956358+223%
2804Ward County, TXTX11,125358−55%
2805Shackelford County, TXTX3,197357+1%
2806Meagher County, MTMT2,137355+29%
2807Valley County, NENE4,094354−47%
2808Faulk County, SDSD2,178354+55%
2809Roberts County, SDSD10,255353−44%
2810Judith Basin County, MTMT2,162352+11%
2811Woodson County, KSKS3,118352−45%
2812Chicot County, ARAR9,107351−69%
2813Haines, AKAK2,068350+4%
2814Barber County, KSKS4,083350−35%
2815Hamlin County, SDSD6,900346−1%
2816Pecos County, TXTX14,560346−54%
2817Mercer County, MOMO3,404345−47%
2818Kidder County, NDND2,393344+187%
2819Presidio County, TXTX5,433344+161%
2820Garfield County, NENE1,710343+3%
2821Hyde County, NCNC4,554341−44%
2822Dallas County, ARAR6,011338−52%
2823Calhoun County, ILIL4,300338−47%
2824Hand County, SDSD3,121333−36%
2825Calhoun County, ARAR4,632332−57%
2826Sierra County, CACA3,098332−22%
2827Sheridan County, MTMT3,436332−18%
2828Baca County, COCO3,347332−31%
2829Alexander County, ILIL4,570332−42%
2830Coke County, TXTX3,412332−24%
2831Madison Parish, LALA8,844330−31%
2832Willacy County, TXTX19,9713300%
2833Perkins County, NENE2,849327−34%
2834Nuckolls County, NENE4,100327−37%
2835Tunica County, MSMS8,819325−44%
2836Sargent County, NDND3,711325−3%
2837Jewell County, KSKS2,830324−25%
2838Hidalgo County, NMNM3,929323+8%
2839Clark County, SDSD4,031322−10%
2840Pawnee County, NENE2,510321−27%
2841Echols County, GAGA3,685321−6%
2842Kittson County, MNMN4,0313180%
2843Stanton County, NENE5,744318−35%
2844Wilkes County, GAGA9,540316−35%
2845Grant County, MNMN6,085315−43%
2846Lipscomb County, TXTX2,955315−10%
2847Putnam County, MOMO4,546314−49%
2848Dickey County, NDND4,895312−49%
2849Early County, GAGA10,455312−55%
2850Comanche County, KSKS1,673312−21%
2851Taylor County, GAGA7,818311−58%
2852Bear Lake County, IDID6,727311+18%
2853Crosby County, TXTX4,852310−18%
2854Nome Census Area, AKAK9,830307−30%
2855Wheatland County, MTMT2,100304+25%
2856Day County, SDSD5,484304−39%
2857Gregory County, SDSD4,037303−38%
2858Stanley County, SDSD3,018300−17%
2859Talbot County, GAGA5,709299−59%
2860Tensas Parish, LALA3,700298−8%
2861Hancock County, GAGA8,682298+99%
2862Kemper County, MSMS8,600295−63%
2863Concho County, TXTX3,607293+218%
2864Dooly County, GAGA11,156291−42%
2865Lincoln County, IDID5,603291−16%
2866Wilkin County, MNMN6,288290−45%
2867Scotland County, MOMO4,796290−38%
2868Edmunds County, SDSD4,022290+99%
2869Mora County, NMNM4,051289+40%
2870Hansford County, TXTX4,944287−54%
2871Castro County, TXTX7,295286−56%
2872Frontier County, NENE2,655285−23%
2873Norman County, MNMN6,336283−29%
2874Catron County, NMNM3,827283−21%
2875Woodruff County, ARAR5,710282−69%
2876Douglas County, SDSD2,888282+68%
2877Cheyenne County, KSKS2,604282−32%
2878Gove County, KSKS2,631282+36%
2879Graham County, KSKS2,371281−5%
2880Skagway, AKAK1,104279−7%
2881LaMoure County, NDND4,135278+34%
2882Wrangell, AKAK2,007277−33%
2883Benson County, NDND5,759277−17%
2884Gilliam County, OROR1,971277+3%
2885Winkler County, TXTX7,540277−47%
2886Trego County, KSKS2,740277−42%
2887Wayne County, UTUT2,587276−12%
2888Phillips County, COCO4,420275−46%
2889Lee County, ARAR8,029274−54%
2890Humphreys County, MSMS7,001274−34%
2891Blaine County, MTMT6,860274−36%
2892Elk County, KSKS2,458274−31%
2893Logan County, KSKS2,661271−19%
2894Garden County, NENE1,804269−30%
2895Charles City County, VAVA6,623269−43%
2896Worth County, MOMO1,914268+22%
2897Petersburg, AKAK3,394264−38%
2898Cheyenne County, COCO1,713262−22%
2899Gosper County, NENE1,803261+47%
2900Bennett County, SDSD3,307260+266%
2901Garfield County, WAWA2,416259−42%
2902Garza County, TXTX4,510258−29%
2903Kiowa County, COCO1,412258+76%
2904Miller County, GAGA5,812258−18%
2906Martin County, TXTX5,284257−62%
2907Carroll County, MSMS9,226255−52%
2908Telfair County, GAGA11,195255−3%
2909Clark County, KSKS1,900253−46%
2910Haskell County, KSKS3,599253−34%
2911Sherman County, TXTX2,7812520%
2912Sheridan County, KSKS2,427252−17%
2913Greene County, ALAL7,067251−39%
2914Red Lake County, MNMN3,940251−16%
2915Traverse County, MNMN3,130250−29%
2916Cavalier County, NDND3,497249+6%
2917Lafayette County, FLFL8,792249−74%
2918Hodgeman County, KSKS1,619249−5%
2919Chase County, KSKS2,572248−45%
2920Hanson County, SDSD3,456247−33%
2921Oldham County, TXTX1,783247−35%
2922Caribou County, IDID7,252246−28%
2923Kiowa County, KSKS2,432246−10%
2924Daniels County, MTMT1,612244+78%
2925Harlan County, NENE3,000243−41%
2926Knox County, MOMO3,728242−67%
2927Greenlee County, AZAZ9,312241−73%
2928Foster County, NDND3,212241−29%
2929Lake of the Woods County, MNMN3,770241−28%
2930Jackson County, SDSD2,666241−35%
2931Powder River County, MTMT1,781240+3%
2932Throckmorton County, TXTX1,554239−25%
2933Highland County, VAVA2,318239−26%
2934Ness County, KSKS2,617239+3%
2935Bethel Census Area, AKAK18,391238−58%
2936East Carroll Parish, LALA6,760238+14%
2937Dunn County, NDND4,058237+20%
2938Denali, AKAK1,616236+5%
2939Rush County, KSKS2,845234−53%
2940Jefferson County, MSMS6,825233+51%
2941De Baca County, NMNM1,647233+78%
2942Hitchcock County, NENE2,467231−55%
2943Dimmit County, TXTX8,024231+24%
2944St. James Parish, LALA18,938231−49%
2945North Slope, AKAK10,582230+24%
2946Tyrrell County, NCNC3,537230−43%
2947Zavala County, TXTX9,037230+254%
2948Nelson County, NDND2,963229−12%
2949Aleutians West Census Area, AKAK5,240227−21%
2950Wheeler County, OROR1,472226−22%
2951Burke County, NDND2,132224+141%
2952Yoakum County, TXTX7,438224−56%
2953McPherson County, SDSD2,347223+103%
2954Jerauld County, SDSD1,654222+60%
2955Pendleton County, WVWV5,826222−61%
2956Duval County, TXTX9,402220−53%
2957Rolette County, NDND11,688220−40%
2958Cottle County, TXTX1,224220+38%
2959Kinney County, TXTX3,128219−20%
2960Kearny County, KSKS3,888219−44%
2961Morton County, KSKS2,470218−57%
2962Motley County, TXTX1,043216+26%
2963Owsley County, KYKY3,932216−63%
2964Cameron Parish, LALA4,718215−57%
2965Perry County, ALAL7,425212−34%
2966Golden Valley County, NDND1,808212+74%
2967Robertson County, KYKY2,325211−44%
2968Sterling County, TXTX1,349209+67%
2969Eddy County, NDND2,329208−9%
2970Mahnomen County, MNMN5,153208−29%
2971Dolores County, COCO2,466208−49%
2972Edwards County, KSKS2,640207−40%
2973Wichita County, KSKS2,031206+61%
2974Seminole County, GAGA9,162205−82%
2975Pierce County, NDND3,838203−16%
2976Wheeler County, GAGA7,570203+2%
2977Franklin County, NENE2,795202−34%
2978Rawlins County, KSKS2,431202−36%
2979Hall County, TXTX2,737201−38%
2980Quitman County, GAGA2,254200−38%
2981Franklin, VAVA8,478199−44%
2982Boyd County, NENE1,674195−46%
2983Rock County, NENE1,259194−5%
2984Eureka County, NVNV1,867193−2%
2985Deuel County, NENE1,862192−35%
2986Dillingham Census Area, AKAK4,483191−39%
2987Hettinger County, NDND2,492191+41%
2988McCone County, MTMT1,720188−8%
2989Potter County, SDSD2,377187−29%
2990Haakon County, SDSD1,802185−49%
2991Towner County, NDND2,040184−23%
2992Jeff Davis County, TXTX1,711182−31%
2993Yukon-Koyukuk Census Area, AKAK5,028180−13%
2994Dundy County, NENE1,568173−40%
2995Harmon County, OKOK2,327172−42%
2996Hyde County, SDSD1,191172−19%
2997Maverick County, TXTX58,823172−44%
2998Glascock County, GAGA3,141172−6%
2999Northwest Arctic, AKAK7,095171−5%
3000Sanborn County, SDSD2,388171−41%
SHOWING 2,501–3,000 OF 3,134

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS