RANKING · 2020 CENSUS · 134 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.

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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

3001Starr County, TXTX66,319170–

3002Divide County, NDND2,110169–

3003Crane County, TXTX4,554167–

3004Aurora County, SDSD2,801164–

3005Buena Vista, VAVA6,672163–

3006Wilcox County, ALAL9,666161–

3007Cimarron County, OKOK2,059160–

3008Adams County, NDND2,275158–

3009Keweenaw County, MIMI2,186157–

3010Sioux County, NENE1,188157–

3011Sherman County, OROR2,051157–

3012Bailey County, TXTX6,963157–

3013Schley County, GAGA4,593156–

3014Renville County, NDND2,331156–

3015Wallace County, KSKS1,441156–

3016Lowndes County, ALAL9,359154–

3017Reeves County, TXTX12,138154–

3018Oneida County, IDID5,085154–

3019Hoonah-Angoon Census Area, AKAK2,271153–

3020Keya Paha County, NENE792153–

3021Cochran County, TXTX2,546153–

3022Costilla County, COCO3,679151–

3023Allendale County, SCSC7,355150–

3024Sedgwick County, COCO2,247150–

3025Clay County, GAGA2,815150–

3026Foard County, TXTX1,044150–

3027Bowman County, NDND2,762147–

3028Butte County, IDID2,783147–

3029Wheeler County, NENE789146–

3030Dickens County, TXTX1,692145–

3031Mineral County, COCO910142–

3032Piute County, UTUT1,509142–

3033Sully County, SDSD1,479140–

3034Ziebach County, SDSD2,389140–

3035Dewey County, SDSD5,419139–

3036Sharkey County, MSMS3,097138–

3037Prairie County, MTMT1,112138–

3038Corson County, SDSD3,781138–

3039Holmes County, MSMS15,465134–

3040Zapata County, TXTX13,753134–

3041Calhoun County, GAGA5,413133–

3042Grant County, NENE561131–

3043Oglala Lakota County, SDSD13,338129–

3044Upton County, TXTX3,131128–

3045Stewart County, GAGA4,631128–

3046Carter County, MTMT1,383127–

3047Logan County, NENE669127–

3048Randolph County, GAGA6,156126–

3049Wibaux County, MTMT885124–

3050Hooker County, NENE686124–

3051Bamberg County, SCSC12,796123–

3052Armstrong County, TXTX1,843122–

3053Wells County, NDND3,729120–

3054Todd County, SDSD8,863120–

3055Stonewall County, TXTX1,186120–

3056Jackson County, COCO1,211120–

3057Briscoe County, TXTX1,474119–

3058Alpine County, CACA1,043117–

3059Lane County, KSKS1,508115–

3060Miner County, SDSD2,281115–

3061Emmons County, NDND3,215114–

3062Warren County, GAGA5,269114–

3063Crockett County, TXTX2,769114–

3064McMullen County, TXTX544113–

3065Hinsdale County, COCO753113–

3066Guadalupe County, NMNM4,343111–

3067Bullock County, ALAL9,780111–

3068Thomas County, NENE639110–

3069Edwards County, TXTX1,370109–

3070Esmeralda County, NVNV729108–

3071Grant County, NDND2,206107–

3072Griggs County, NDND2,239106–

3073Greeley County, KSKS1,182106–

3074Liberty County, MTMT1,957103–

3075Harding County, SDSD1,331102–

3076Irion County, TXTX1,463102–

3077Twiggs County, GAGA7,597100–

3078Roberts County, TXTX867100–

3079Sioux County, NDND3,66798–

3080Aleutians East, AKAK3,47996–

3081Sutton County, TXTX3,20394–

3082Hamilton County, KSKS2,50093–

3083Hudspeth County, TXTX3,43391–

3084Culberson County, TXTX2,26788–

3085Terrell County, TXTX70282–

3086Jim Hogg County, TXTX4,55580–

3087Golden Valley County, MTMT84478–

3088Jones County, SDSD91378–

3089Borden County, TXTX56778–

3090Slope County, NDND62877–

3091Steele County, NDND1,79775–

3092Garfield County, MTMT1,14873–

3093Logan County, NDND1,85973–

3094Arthur County, NENE39670–

3095Loup County, NENE57070–

3096Hayes County, NENE82168–

3097McPherson County, NENE36968–

3098Mellette County, SDSD2,13765–

3099Billings County, NDND1,07162–

3100Webster County, GAGA2,36962–

3101Oliver County, NDND1,89860–

3102Campbell County, SDSD1,37760–

3103San Juan County, COCO81360–

3104Rich County, UTUT2,68760–

3105Taliaferro County, GAGA1,66256–

3106Treasure County, MTMT72855–

3107Daggett County, UTUT93455–

3108Clark County, IDID78353–

3109Sheridan County, NDND1,29652–

3110Blaine County, NENE45852–

3111Camas County, IDID1,31651–

3112McIntosh County, NDND2,45150–

3113Schleicher County, TXTX2,24549–

3114Petroleum County, MTMT54848–

3115Claiborne County, MSMS8,05847–

3116Banner County, NENE68645–

3117Reagan County, TXTX3,16644–

3118Baker County, GAGA2,72541–

3119Lake and Peninsula, AKAK1,35739–

3120Glasscock County, TXTX1,12838–

3121Kent County, TXTX67437–

3122Yakutat, AKAK67234–

3123Stanton County, KSKS1,98633–

3124Emporia, VAVA5,44731–

3125Menominee County, WIWI4,19931–

3126Bristol Bay, AKAK84730–

3127King County, TXTX19221–

3128Issaquena County, MSMS1,26320–

3129Kusilvak Census Area, AKAK7,93219–

3130Harding County, NMNM61719–

3131Buffalo County, SDSD1,80214–

3132Brooks County, TXTX6,57913–

3133Kenedy County, TXTX3192–

3134Kalawao County, HIHI821–

SHOWING 3,001–3,134 OF 3,134

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