| Country | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| United States | 144,675 | 5,055 | 62,965 | 2,703 |
| State | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| New York | 16,585 | 1,566 | 7,040 | 807 |
| Missouri | 12,340 | 1,454 | 6,045 | 795 |
| Illinois | 11,720 | 1,426 | 5,040 | 788 |
| Florida | 10,625 | 1,446 | 4,690 | 887 |
| Michigan | 8,930 | 1,216 | 4,470 | 643 |
| Iowa | 7,965 | 923 | 3,795 | 583 |
| California | 7,285 | 997 | 2,735 | 545 |
| Georgia | 6,175 | 1,182 | 2,945 | 569 |
| Arizona | 4,960 | 973 | 2,000 | 445 |
| Kentucky | 4,825 | 753 | 2,545 | 474 |
| Texas | 4,530 | 775 | 1,650 | 347 |
| Pennsylvania | 4,400 | 563 | 1,900 | 289 |
| Washington | 3,515 | 757 | 1,245 | 284 |
| Minnesota | 3,180 | 663 | 1,395 | 339 |
| Massachusetts | 3,170 | 920 | 1,180 | 381 |
| Utah | 3,030 | 582 | 1,330 | 284 |
| Virginia | 2,950 | 662 | 1,025 | 304 |
| Indiana | 2,705 | 593 | 1,260 | 330 |
| Connecticut | 2,640 | 541 | 1,050 | 280 |
| New Jersey | 2,540 | 668 | 1,130 | 406 |
| Idaho | 2,425 | 772 | 815 | 325 |
| Ohio | 2,375 | 554 | 1,080 | 292 |
| North Carolina | 2,125 | 531 | 835 | 269 |
| Tennessee | 1,715 | 449 | 770 | 275 |
| Colorado | 1,680 | 464 | 685 | 204 |
| Nevada | 1,425 | 599 | 740 | 341 |
| New Hampshire | 1,410 | 438 | 655 | 268 |
| Oregon | 1,205 | 446 | 610 | 251 |
| Wisconsin | 1,175 | 405 | 555 | 294 |
| Vermont | 1,015 | 348 | 455 | 175 |
| Maryland | 925 | 291 | 265 | 147 |
| South Dakota | 585 | 361 | 325 | 252 |
| North Dakota | 560 | 303 | 140 | 93 |
| Louisiana | 300 | 250 | 110 | 113 |
| Nebraska | 265 | 167 | 95 | 112 |
| South Carolina | 245 | 185 | (D) | (D) |
| Alabama | 170 | 123 | 40 | 53 |
| West Virginia | 165 | 233 | 80 | 124 |
| Rhode Island | 155 | 151 | (D) | (D) |
| Oklahoma | 145 | 111 | 50 | 55 |
| District of Columbia | 120 | 69 | 55 | 44 |
| Delaware | 110 | 105 | (B) | - |
| New Mexico | 100 | 76 | (D) | (D) |
| Kansas | 85 | 69 | 60 | 56 |
| Maine | 40 | 35 | (D) | (D) |
| Mississippi | 30 | 38 | (B) | - |
| Wyoming | 15 | 17 | (B) | - |
| Alaska | (D) | (D) | (B) | - |
| Arkansas | (D) | (D) | (B) | - |
| Montana | (D) | (D) | (D) | (D) |
| County | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| Cook County [IL] | 9,295 | 1,224 | 4,105 | 705 |
| St. Louis County [MO] | 8,240 | 1,220 | 4,060 | 649 |
| Maricopa County [AZ] | 4,540 | 967 | 1,895 | 438 |
| Polk County [IA] | 4,170 | 872 | 1,935 | 462 |
| Gwinnett County [GA] | 3,720 | 885 | 1,620 | 479 |
| Duval County [FL] | 3,670 | 800 | 1,910 | 569 |
| Pinellas County [FL] | 3,410 | 846 | 1,595 | 520 |
| Macomb County [MI] | 3,165 | 755 | 1,885 | 404 |
| Salt Lake County [UT] | 2,995 | 586 | 1,330 | 284 |
| Queens County [NY] | 2,870 | 581 | 1,285 | 331 |
| Jefferson County [KY] | 2,105 | 559 | 1,175 | 359 |
| Wayne County [MI] | 1,815 | 484 | 850 | 243 |
| Onondaga County [NY] | 1,600 | 453 | 800 | 262 |
| Kings County [NY] | 1,595 | 440 | 715 | 268 |
| Hartford County [CT] | 1,570 | 424 | 690 | 223 |
| King County [WA] | 1,445 | 407 | 525 | 182 |
| Santa Clara County [CA] | 1,425 | 463 | 510 | 199 |
| Clark County [NV] | 1,410 | 596 | 740 | 341 |
| Los Angeles County [CA] | 1,200 | 321 | 305 | 132 |
| New York County [NY] | 1,165 | 521 | 295 | 215 |
| Middlesex County [MA] | 1,160 | 545 | 365 | 177 |
| Henrico County [VA] | 1,130 | 484 | 475 | 228 |
| Hillsborough County [NH] | 1,110 | 408 | 545 | 271 |
| DuPage County [IL] | 1,060 | 401 | 375 | 140 |
| Bronx County [NY] | 1,050 | 473 | 395 | 185 |
| Harris County [TX] | 1,040 | 371 | 350 | 140 |
| Sacramento County [CA] | 895 | 424 | 575 | 332 |
| Dallas County [TX] | 895 | 288 | 360 | 170 |
| Allegheny County [PA] | 875 | 311 | 365 | 164 |
| Suffolk County [MA] | 855 | 299 | 430 | 192 |
| Hennepin County [MN] | 850 | 316 | 410 | 166 |
| Alameda County [CA] | 780 | 313 | 300 | 148 |
| Orange County [CA] | 710 | 291 | 270 | 154 |
| Westchester County [NY] | 690 | 419 | 170 | 126 |
| Multnomah County [OR] | 685 | 347 | 395 | 215 |
| Monroe County [NY] | 655 | 244 | 290 | 127 |
| Tarrant County [TX] | 615 | 272 | 355 | 180 |
| Milwaukee County [WI] | 600 | 330 | 375 | 286 |
| Mecklenburg County [NC] | 590 | 318 | 315 | 224 |
| Guilford County [NC] | 585 | 260 | 230 | 110 |
| Bergen County [NJ] | 550 | 288 | 250 | 174 |
| Cuyahoga County [OH] | 510 | 204 | 325 | 156 |
| Essex County [MA] | 500 | 253 | 140 | 80 |
| San Francisco County [CA] | 495 | 304 | 290 | 254 |
| Orange County [FL] | 490 | 321 | 275 | 251 |
| Hillsborough County [FL] | 455 | 230 | 160 | 106 |
| Franklin County [OH] | 450 | 279 | 190 | 152 |
| Snohomish County [WA] | 445 | 340 | 100 | 84 |
| Bexar County [TX] | 440 | 302 | 80 | 66 |
| DeKalb County [GA] | 430 | 278 | 285 | 219 |
| Morris County [NJ] | 430 | 286 | 260 | 202 |
| Lancaster County [PA] | 430 | 226 | 250 | 141 |
| Fulton County [GA] | 425 | 268 | 200 | 140 |
| New Haven County [CT] | 415 | 174 | 115 | 84 |
| Oakland County [MI] | 405 | 155 | 185 | 98 |
| Palm Beach County [FL] | 400 | 235 | 105 | 78 |
| Clark County [WA] | 395 | 186 | 120 | 87 |
| Davidson County [TN] | 375 | 209 | 90 | 77 |
| Hampden County [MA] | 370 | 416 | 185 | 192 |
| San Diego County [CA] | 365 | 168 | 95 | 61 |
| Collin County [TX] | 335 | 150 | 170 | 128 |
| Cobb County [GA] | 310 | 255 | 185 | 148 |
| Erie County [NY] | 310 | 198 | 130 | 108 |
| Arapahoe County [CO] | 305 | 179 | 110 | 79 |
| Passaic County [NJ] | 290 | 160 | 190 | 108 |
| El Paso County [CO] | 280 | 250 | 160 | 135 |
| Richmond County [NY] | 270 | 153 | 65 | 71 |
| Pima County [AZ] | 265 | 134 | 95 | 65 |
| Lee County [FL] | 265 | 215 | 45 | 59 |
| Nassau County [NY] | 265 | 179 | 125 | 105 |
| Lake County [IL] | 255 | 190 | 45 | 39 |
| Bucks County [PA] | 255 | 155 | 115 | 80 |
| Loudoun County [VA] | 255 | 151 | 50 | 70 |
| Washington County [OR] | 245 | 169 | 90 | 73 |
| Travis County [TX] | 235 | 162 | 100 | 96 |
| Suffolk County [NY] | 230 | 152 | 105 | 83 |
| Philadelphia County [PA] | 225 | 199 | 120 | 121 |
| Contra Costa County [CA] | 220 | 146 | 105 | 77 |
| Miami-Dade County [FL] | 220 | 151 | 45 | 39 |
| Mercer County [NJ] | 220 | 202 | (D) | (D) |
| Fairfax County [VA] | 210 | 189 | (D) | (D) |
| Denver County [CO] | 195 | 102 | 115 | 73 |
| Fairfield County [CT] | 185 | 116 | 45 | 35 |
| Washtenaw County [MI] | 175 | 157 | (B) | - |
| Baltimore County [MD] | 170 | 120 | 85 | 62 |
| San Mateo County [CA] | 160 | 142 | 55 | 61 |
| Broward County [FL] | 155 | 132 | 20 | 24 |
| Essex County [NJ] | 155 | 123 | 35 | 36 |
| Albany County [NY] | 155 | 129 | 75 | 61 |
| Shelby County [TN] | 155 | 169 | 55 | 59 |
| Worcester County [MA] | 150 | 100 | 60 | 60 |
| Denton County [TX] | 145 | 156 | (D) | (D) |
| Ventura County [CA] | 140 | 121 | 40 | 48 |
| Montgomery County [MD] | 140 | 81 | 40 | 40 |
| Union County [NJ] | 135 | 119 | 95 | 104 |
| Prince George s County [MD] | 130 | 133 | 45 | 71 |
| Marion County [IN] | 125 | 113 | 65 | 64 |
| Norfolk County [MA] | 125 | 93 | (B) | - |
| Dakota County [MN] | 125 | 109 | 45 | 63 |
| San Joaquin County [CA] | 120 | 145 | (D) | (D) |
| District of Columbia [DC] | 120 | 69 | 55 | 44 |
| Will County [IL] | 120 | 143 | 35 | 58 |
| Riverside County [CA] | 115 | 84 | 40 | 37 |
| Monmouth County [NJ] | 115 | 90 | (D) | (D) |
| New Castle County [DE] | 110 | 105 | (B) | - |
| Burlington County [NJ] | 110 | 127 | (D) | (D) |
| Howard County [MD] | 105 | 123 | 55 | 68 |
| Hudson County [NJ] | 105 | 70 | (D) | (D) |
| Rockland County [NY] | 95 | 74 | 65 | 56 |
| Virginia Beach city [VA] | 95 | 107 | 40 | 51 |
| Baltimore city [MD] | 90 | 62 | (D) | (D) |
| Oklahoma County [OK] | 90 | 96 | (D) | (D) |
| Ramsey County [MN] | 80 | 76 | (D) | (D) |
| Arlington County [VA] | 80 | 81 | 35 | 45 |
| Placer County [CA] | 75 | 56 | (D) | (D) |
| San Bernardino County [CA] | 65 | 50 | (D) | (D) |
| Montgomery County [PA] | 65 | 58 | (B) | - |
| Fort Bend County [TX] | 65 | 115 | (D) | (D) |
| Jefferson Parish [LA] | 60 | 64 | 35 | 39 |
| Middlesex County [NJ] | 55 | 88 | (D) | (D) |
| Stanislaus County [CA] | 40 | 63 | (B) | - |
| Bernalillo County [NM] | 35 | 38 | (D) | (D) |
| Providence County [RI] | 35 | 40 | (D) | (D) |
| Kane County [IL] | 30 | 37 | (B) | - |
| Wake County [NC] | 30 | 29 | (B) | - |
| Hamilton County [OH] | 25 | 28 | (D) | (D) |
| Delaware County [PA] | 25 | 22 | (B) | - |
| Pierce County [WA] | 20 | 20 | (B) | - |
| Atlantic County [NJ] | 10 | 9 | (D) | (D) |
| Anchorage Municipality [AK] | (D) | (D) | (B) | - |
| Navajo County [AZ] | (D) | (D) | (B) | - |
| Fresno County [CA] | (D) | (D) | (B) | - |
| Sonoma County [CA] | (D) | (D) | (B) | - |
| Yolo County [CA] | (D) | (D) | (B) | - |
| Collier County [FL] | (D) | (D) | (B) | - |
| Anne Arundel County [MD] | (D) | (D) | (B) | - |
| Washoe County [NV] | (D) | (D) | (B) | - |
| Camden County [NJ] | (D) | (D) | (D) | (D) |
| Ocean County [NJ] | (D) | (D) | (D) | (D) |
| Somerset County [NJ] | (D) | (D) | (B) | - |
| San Juan County [NM] | (D) | (D) | (B) | - |
| Orange County [NY] | (D) | (D) | (B) | - |
| Chester County [PA] | (D) | (D) | (B) | - |
| Prince William County [VA] | (D) | (D) | (B) | - |
| Dane County [WI] | (D) | (D) | (B) | - |
| City / Metropolitan area / CBSA | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| St. Louis [MO-IL] | 11,365 | 1,362 | 5,715 | 754 |
| Chicago-Naperville-Elgin [IL-IN] | 11,295 | 1,340 | 4,830 | 753 |
| New York-Newark-Jersey City [NY] | 10,770 | 1,431 | 4,355 | 786 |
| Atlanta-Sandy Springs-Roswell [GA] | 5,705 | 1,131 | 2,710 | 548 |
| Detroit-Warren-Dearborn [MI] | 5,605 | 949 | 3,010 | 481 |
| Phoenix-Mesa-Scottsdale [AZ] | 4,555 | 968 | 1,895 | 438 |
| Des Moines-West Des Moines [IA] | 4,520 | 900 | 2,025 | 472 |
| Tampa-St. Petersburg-Clearwater [FL] | 4,330 | 924 | 1,945 | 540 |
| Jacksonville [FL] | 3,810 | 788 | 1,990 | 551 |
| Salt Lake City [UT] | 2,995 | 586 | 1,330 | 284 |
| Boston-Cambridge-Newton [MA-NH] | 2,760 | 814 | 970 | 334 |
| Grand Rapids-Wyoming [MI] | 2,665 | 582 | 1,235 | 329 |
| Minneapolis-St. Paul-Bloomington [MN-WI] | 2,440 | 593 | 1,070 | 324 |
| Louisville Jefferson County [KY] | 2,200 | 557 | 1,195 | 360 |
| Dallas-Fort Worth-Arlington [TX] | 2,040 | 436 | 965 | 275 |
| Los Angeles-Long Beach-Anaheim [CA] | 1,910 | 491 | 575 | 214 |
| Seattle-Tacoma-Bellevue [WA] | 1,910 | 578 | 625 | 200 |
| Hartford-West Hartford-East Hartford [CT] | 1,845 | 475 | 795 | 247 |
| San Francisco-Oakland-Hayward [CA] | 1,845 | 434 | 815 | 302 |
| Syracuse [NY] | 1,625 | 449 | 825 | 261 |
| Portland-Vancouver-Hillsboro [OR-WA] | 1,600 | 472 | 730 | 261 |
| San Jose-Sunnyvale-Santa Clara [CA] | 1,425 | 463 | 510 | 199 |
| Las Vegas-Henderson-Paradise [NV] | 1,410 | 596 | 740 | 341 |
| Houston-The Woodlands-Sugar Land [TX] | 1,300 | 463 | 395 | 165 |
| Richmond [VA] | 1,230 | 492 | 495 | 230 |
| Manchester-Nashua [NH] | 1,110 | 408 | 545 | 271 |
| Cleveland-Elyria [OH] | 1,090 | 378 | 580 | 209 |
| Denver-Aurora-Lakewood [CO] | 1,065 | 320 | 410 | 150 |
| Washington-Arlington-Alexandria [DC-VA-MD-WV] | 1,035 | 309 | 260 | 135 |
| Harrisburg-Carlisle [PA] | 1,005 | 370 | 420 | 172 |
| Charlotte-Concord-Gastonia [NC-SC] | 1,000 | 415 | 485 | 234 |
| Sacramento-Roseville-Arden-Arcade [CA] | 980 | 422 | 600 | 333 |
| Rochester [NY] | 955 | 401 | 370 | 153 |
| Pittsburgh [PA] | 940 | 314 | 375 | 165 |
| Philadelphia-Camden-Wilmington [PA-NJ-DE-MD] | 840 | 333 | 300 | 166 |
| Milwaukee-Waukesha-West Allis [WI] | 800 | 362 | 480 | 280 |
| Miami-Fort Lauderdale-West Palm Beach [FL] | 775 | 329 | 170 | 88 |
| Orlando-Kissimmee-Sanford [FL] | 625 | 378 | 315 | 259 |
| Greensboro-High Point [NC] | 585 | 260 | 230 | 110 |
| Akron [OH] | 555 | 296 | 180 | 132 |
| Spokane-Spokane Valley [WA] | 550 | 336 | 275 | 204 |
| Austin-Round Rock [TX] | 480 | 365 | 165 | 124 |
| Columbus [OH] | 460 | 280 | 190 | 152 |
| Kansas City [MO-KS] | 445 | 197 | 200 | 118 |
| San Antonio-New Braunfels [TX] | 440 | 302 | 80 | 66 |
| Lancaster [PA] | 430 | 226 | 250 | 141 |
| Nashville-Davidson-Murfreesboro-Franklin [TN] | 430 | 212 | 115 | 81 |
| New Haven-Milford [CT] | 415 | 174 | 115 | 84 |
| Cincinnati [OH-KY-IN] | 410 | 287 | 175 | 125 |
| Baltimore-Columbia-Towson [MD] | 400 | 184 | 145 | 94 |
| Springfield [MA] | 370 | 416 | 185 | 192 |
| San Diego-Carlsbad [CA] | 365 | 168 | 95 | 61 |
| Indianapolis-Carmel-Anderson [IN] | 350 | 188 | 155 | 101 |
| Buffalo-Cheektowaga-Niagara Falls [NY] | 310 | 198 | 130 | 108 |
| Colorado Springs [CO] | 280 | 250 | 160 | 135 |
| Cape Coral-Fort Myers [FL] | 265 | 215 | 45 | 59 |
| Tucson [AZ] | 265 | 134 | 95 | 65 |
| Albany-Schenectady-Troy [NY] | 250 | 177 | 105 | 76 |
| Lansing-East Lansing [MI] | 245 | 188 | 140 | 117 |
| Allentown-Bethlehem-Easton [PA-NJ] | 240 | 156 | 120 | 85 |
| Trenton [NJ] | 220 | 202 | (D) | (D) |
| Bridgeport-Stamford-Norwalk [CT] | 185 | 116 | 45 | 35 |
| Lafayette [LA] | 185 | 241 | (D) | (D) |
| New York-Newark-Jersey City [NY-NJ-PA] | 180 | 142 | 55 | 45 |
| Riverside-San Bernardino-Ontario [CA] | 180 | 99 | 55 | 44 |
| Ann Arbor [MI] | 175 | 157 | (B) | - |
| Memphis [TN-MS-AR] | 155 | 169 | 55 | 59 |
| Providence-Warwick [RI-MA] | 155 | 151 | (D) | (D) |
| Worcester [MA-CT] | 150 | 100 | 60 | 60 |
| Oxnard-Thousand Oaks-Ventura [CA] | 140 | 121 | 40 | 48 |
| Virginia Beach-Norfolk-Newport News [VA-NC] | 140 | 119 | 60 | 60 |
| Oklahoma City [OK] | 130 | 110 | 50 | 55 |
| Omaha-Council Bluffs [NE-IA] | 125 | 126 | 40 | 50 |
| Stockton-Lodi [CA] | 120 | 145 | (D) | (D) |
| New Orleans-Metairie [LA] | 95 | 73 | 35 | 39 |
| Modesto [CA] | 40 | 63 | (B) | - |
| Portland-South Portland [ME] | 40 | 35 | (D) | (D) |
| Albuquerque [NM] | 35 | 38 | (D) | (D) |
| Raleigh [NC] | 30 | 29 | (B) | - |
| Atlantic City-Hammonton [NJ] | 10 | 9 | (D) | (D) |
| Anchorage [AK] | (D) | (D) | (B) | - |
| Deltona-Daytona Beach-Ormond Beach [FL] | (D) | (D) | (B) | - |
| Durham-Chapel Hill [NC] | (D) | (D) | (B) | - |
| Farmington [NM] | (D) | (D) | (B) | - |
| Fresno [CA] | (D) | (D) | (B) | - |
| Madison [WI] | (D) | (D) | (B) | - |
| Naples-Immokalee-Marco Island [FL] | (D) | (D) | (B) | - |
| Reno [NV] | (D) | (D) | (B) | - |
| Santa Rosa [CA] | (D) | (D) | (B) | - |
| Show Low [AZ] | (D) | (D) | (B) | - |