Which county has the highest irish share?

McPherson County, Nebraska ranks #1 with 35.6% (2010 Decennial Census).

What are the top 5 counties by irish share?

McPherson County, Nebraska, Plymouth County, Massachusetts, Silver Bow County, Montana, Norfolk County, Massachusetts, Loving County, Texas.

How many counties are in this ranking?

3,130 counties qualify after filtering for population minimums and data availability. The ranking covers 2010 Decennial Census data.

How is irish share measured?

Share of all residents who are Irish ancestry (Ancestry, ACS detailed tables). Source: US Census Bureau, 2010 Decennial Census.

RANKING · 2010 CENSUS · 130 SHOWN OF 3,130

Highest Irish population share, US counties · 2010

US counties ranked by the share of all residents who are Irish ancestry (2010 American Community Survey). A concentration measure: Irish residents as a percentage of total population.

Irish Americans: full group profile →

All statesAll rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPIRISH SHAREVS –

3001Wilkes County, GAGA9,5404.6%–

3002Aleutians West Census Area, AKAK5,2404.6%–

3003Logan County, NDND1,8594.5%–

3004Power County, IDID8,2464.5%–

3005Evangeline Parish, LALA31,9804.5%–

3006Clay County, TNTN7,8214.5%–

3007Jim Wells County, TXTX38,8044.5%–

3008Sheridan County, NDND1,2964.5%–

3009Greene County, ALAL7,0674.5%–

3010Clay County, GAGA2,8154.5%–

3011Montgomery County, ALAL225,8914.5%–

3012McPherson County, SDSD2,3474.4%–

3013Marlboro County, SCSC25,4884.4%–

3014Honolulu County, HIHI988,7034.4%–

3015Oneida County, IDID5,0854.4%–

3016Emmons County, NDND3,2154.4%–

3017Bear Lake County, IDID6,7274.4%–

3018Macon County, GAGA11,7564.4%–

3019Humphreys County, MSMS7,0014.3%–

3020Los Angeles County, CACA9,694,9344.3%–

3021Morgan County, UTUT13,3834.3%–

3022Greene County, GAGA21,3674.2%–

3023Culberson County, TXTX2,2674.2%–

3024Sutton County, TXTX3,2034.2%–

3025Hertford County, NCNC19,0154.2%–

3026Mora County, NMNM4,0514.2%–

3027Oliver County, NDND1,8984.2%–

3028Franklin, VAVA8,4784.2%–

3029Apache County, AZAZ64,4454.2%–

3030Bertie County, NCNC17,0864.2%–

3031Corson County, SDSD3,7814.0%–

3032Harding County, NMNM6174.0%–

3033Terrebonne Parish, LALA104,1634.0%–

3034Sunflower County, MSMS22,8934.0%–

3035St. Mary Parish, LALA46,5524.0%–

3036Guadalupe County, NMNM4,3434.0%–

3037Jefferson County, GAGA15,0114.0%–

3038Box Elder County, UTUT65,3203.9%–

3039Pointe Coupee Parish, LALA19,5203.9%–

3040Hendry County, FLFL48,2763.9%–

3041St. John the Baptist Parish, LALA39,8753.9%–

3042Orangeburg County, SCSC83,1773.9%–

3043Madison Parish, LALA8,8443.9%–

3044Iberia Parish, LALA66,8463.9%–

3045Duval County, TXTX9,4023.9%–

3046Emporia, VAVA5,4473.9%–

3047Edgecombe County, NCNC49,1213.8%–

3048Sumter County, ALAL11,5883.8%–

3049San Miguel County, NMNM26,2603.8%–

3050Lafourche Parish, LALA95,5053.8%–

3051Warren County, NCNC18,8983.7%–

3052Yukon-Koyukuk Census Area, AKAK5,0283.7%–

3053Prince George's County, MDMD970,3743.7%–

3054Edmunds County, SDSD4,0223.6%–

3055Warren County, GAGA5,2693.6%–

3056La Salle County, TXTX6,5173.5%–

3057Dooly County, GAGA11,1563.5%–

3058Kings County, NYNY2,653,9633.4%–

3059Santa Cruz County, AZAZ50,0203.4%–

3060Taliaferro County, GAGA1,6623.4%–

3061Dodge County, GAGA19,6633.4%–

3062Bethel Census Area, AKAK18,3913.4%–

3063St. Landry Parish, LALA80,7653.3%–

3064Franklin County, IDID15,8893.2%–

3065Vermilion Parish, LALA57,6713.2%–

3066Val Verde County, TXTX47,8353.2%–

3067Sharkey County, MSMS3,0973.1%–

3068Wilcox County, ALAL9,6663.1%–

3069Leflore County, MSMS25,6863.0%–

3070Perry County, ALAL7,4253.0%–

3071Washington County, GAGA19,4533.0%–

3072Robeson County, NCNC119,9412.9%–

3073Holmes County, MSMS15,4652.9%–

3074Crockett County, TXTX2,7692.9%–

3075McIntosh County, NDND2,4512.8%–

3076Bronx County, NYNY1,406,3322.8%–

3077Wheeler County, GAGA7,5702.8%–

3078St. Martin Parish, LALA51,1062.8%–

3079Bamberg County, SCSC12,7962.7%–

3080Zapata County, TXTX13,7532.7%–

3081Buckingham County, VAVA17,1372.7%–

3082Vance County, NCNC42,6382.7%–

3083Rio Arriba County, NMNM39,8322.7%–

3084Imperial County, CACA181,4112.7%–

3085Rolette County, NDND11,6882.7%–

3086East Carroll Parish, LALA6,7602.6%–

3087Clayton County, GAGA297,4712.6%–

3088El Paso County, TXTX877,8582.5%–

3089Bullock County, ALAL9,7802.5%–

3090Frio County, TXTX18,8232.4%–

3091Northwest Arctic, AKAK7,0952.4%–

3092Lee County, SCSC15,7302.4%–

3093Menominee County, WIWI4,1992.4%–

3094Clark County, IDID7832.3%–

3095Assumption Parish, LALA19,7202.3%–

3096Concho County, TXTX3,6072.3%–

3097Macon County, ALAL18,1322.2%–

3098Allendale County, SCSC7,3552.2%–

3099Lowndes County, ALAL9,3592.2%–

3100North Slope, AKAK10,5822.1%–

3101Lake and Peninsula, AKAK1,3572.1%–

3102Bennett County, SDSD3,3072.1%–

3103St. James Parish, LALA18,9382.1%–

3104Williamsburg County, SCSC29,6622.0%–

3105Petersburg, VAVA33,7341.9%–

3106Jefferson County, MSMS6,8251.9%–

3107Dimmit County, TXTX8,0241.9%–

3108Miami-Dade County, FLFL2,802,0291.8%–

3109Greensville County, VAVA11,1811.8%–

3110Cameron County, TXTX433,9461.7%–

3111Hudspeth County, TXTX3,4331.7%–

3112Presidio County, TXTX5,4331.7%–

3113Todd County, SDSD8,8631.7%–

3114Telfair County, GAGA11,1951.6%–

3115Sioux County, NDND3,6671.6%–

3116McKinley County, NMNM68,1191.6%–

3117Hancock County, GAGA8,6821.6%–

3118Willacy County, TXTX19,9711.5%–

3119Hidalgo County, TXTX921,5491.4%–

3120Claiborne County, MSMS8,0581.4%–

3121Aleutians East, AKAK3,4791.2%–

3122Buffalo County, SDSD1,8021.1%–

3123Reeves County, TXTX12,1380.9%–

3124Jim Hogg County, TXTX4,5550.8%–

3125Webb County, TXTX281,2240.7%–

3126Brooks County, TXTX6,5790.7%–

3127Maverick County, TXTX58,8230.6%–

3128Zavala County, TXTX9,0370.6%–

3129Starr County, TXTX66,3190.5%–

3130Baker County, GAGA2,7250.4%–

SHOWING 3,001–3,130 OF 3,130

1 2 3 4 5 6 7

Download CSV (full list, 3,130 rows)

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