| Country | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| United States | 894,499 | 11,901 | 284,099 | 5,638 |
| State | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| New York | 93,485 | 3,946 | 28,808 | 1,695 |
| Texas | 80,814 | 3,857 | 21,419 | 1,707 |
| Maryland | 71,519 | 2,891 | 17,882 | 1,229 |
| California | 71,399 | 3,273 | 20,590 | 1,722 |
| Minnesota | 64,537 | 2,466 | 27,046 | 1,290 |
| Virginia | 52,140 | 2,318 | 15,522 | 1,382 |
| Georgia | 48,036 | 2,613 | 12,499 | 1,327 |
| Washington | 40,932 | 2,244 | 17,655 | 1,437 |
| Ohio | 35,960 | 2,132 | 13,126 | 1,103 |
| New Jersey | 33,165 | 1,971 | 7,812 | 750 |
| Massachusetts | 32,981 | 2,248 | 10,032 | 1,028 |
| Illinois | 29,473 | 2,094 | 7,758 | 1,150 |
| Pennsylvania | 23,519 | 1,782 | 7,106 | 1,087 |
| North Carolina | 20,594 | 1,832 | 5,477 | 794 |
| Colorado | 17,500 | 1,597 | 8,148 | 995 |
| Florida | 14,092 | 1,497 | 3,270 | 578 |
| Michigan | 13,819 | 1,561 | 4,812 | 1,021 |
| Tennessee | 12,044 | 1,618 | 4,783 | 1,151 |
| Missouri | 11,775 | 1,173 | 3,883 | 622 |
| Arizona | 11,579 | 1,421 | 4,610 | 697 |
| Nevada | 9,641 | 1,241 | 4,722 | 778 |
| Indiana | 9,246 | 1,423 | 2,004 | 562 |
| Connecticut | 8,553 | 1,137 | 2,257 | 530 |
| District of Columbia | 8,536 | 929 | 3,225 | 607 |
| Oregon | 6,874 | 1,084 | 2,938 | 791 |
| Kansas | 6,379 | 902 | 1,934 | 439 |
| Kentucky | 6,114 | 934 | 2,605 | 566 |
| Nebraska | 6,035 | 1,046 | 2,657 | 530 |
| Wisconsin | 5,432 | 747 | 1,736 | 372 |
| Iowa | 5,056 | 695 | 1,954 | 468 |
| Oklahoma | 4,483 | 727 | 892 | 284 |
| Delaware | 3,744 | 781 | 445 | 170 |
| Utah | 3,735 | 669 | 1,386 | 376 |
| Rhode Island | 3,658 | 566 | 1,264 | 320 |
| Maine | 3,570 | 499 | 2,078 | 403 |
| Alabama | 3,325 | 509 | 630 | 189 |
| South Dakota | 3,252 | 494 | 2,085 | 398 |
| Louisiana | 2,739 | 599 | 715 | 246 |
| North Dakota | 2,448 | 478 | 1,529 | 401 |
| New Hampshire | 2,359 | 530 | 1,094 | 381 |
| South Carolina | 2,073 | 536 | 791 | 400 |
| Alaska | 1,415 | 388 | 743 | 211 |
| Mississippi | 1,081 | 366 | 228 | 139 |
| Idaho | 1,050 | 426 | 701 | 418 |
| New Mexico | 850 | 238 | 174 | 83 |
| West Virginia | 800 | 260 | 122 | 87 |
| Arkansas | 797 | 251 | 158 | 104 |
| Vermont | 790 | 289 | 380 | 186 |
| Hawaii | 594 | 227 | 223 | 107 |
| Wyoming | 320 | 189 | 89 | 55 |
| Montana | 187 | 117 | 102 | 75 |
| County | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| Bronx County [NY] | 39,195 | 2,433 | 13,081 | 1,074 |
| King County [WA] | 30,922 | 1,921 | 13,827 | 1,167 |
| Hennepin County [MN] | 29,810 | 1,668 | 12,991 | 944 |
| Montgomery County [MD] | 28,063 | 1,916 | 8,188 | 781 |
| Franklin County [OH] | 22,687 | 1,703 | 8,962 | 864 |
| Prince George s County [MD] | 22,116 | 1,757 | 4,789 | 680 |
| Cook County [IL] | 20,637 | 1,842 | 5,838 | 1,038 |
| Los Angeles County [CA] | 20,432 | 1,758 | 5,482 | 841 |
| Harris County [TX] | 19,753 | 2,083 | 4,599 | 748 |
| Dallas County [TX] | 17,770 | 1,507 | 4,580 | 768 |
| Fairfax County [VA] | 17,700 | 1,631 | 5,785 | 770 |
| DeKalb County [GA] | 14,304 | 1,499 | 6,333 | 924 |
| Ramsey County [MN] | 13,907 | 1,204 | 6,007 | 710 |
| Kings County [NY] | 12,602 | 1,468 | 3,768 | 636 |
| San Diego County [CA] | 11,927 | 1,617 | 4,323 | 856 |
| Essex County [NJ] | 10,888 | 1,077 | 2,752 | 454 |
| Tarrant County [TX] | 10,625 | 1,275 | 3,013 | 748 |
| Queens County [NY] | 10,311 | 1,216 | 2,462 | 543 |
| Middlesex County [MA] | 10,024 | 1,122 | 2,213 | 464 |
| Philadelphia County [PA] | 9,301 | 1,143 | 3,127 | 771 |
| Gwinnett County [GA] | 9,031 | 1,322 | 2,079 | 745 |
| Clark County [NV] | 8,909 | 1,146 | 4,542 | 773 |
| Baltimore County [MD] | 8,785 | 1,007 | 1,847 | 426 |
| Maricopa County [AZ] | 8,689 | 1,246 | 3,428 | 569 |
| Prince William County [VA] | 8,567 | 1,276 | 1,885 | 427 |
| District of Columbia [DC] | 8,536 | 929 | 3,225 | 607 |
| Fort Bend County [TX] | 8,472 | 1,609 | 2,173 | 489 |
| Arapahoe County [CO] | 8,374 | 1,060 | 3,916 | 649 |
| Worcester County [MA] | 7,963 | 977 | 3,075 | 592 |
| New York County [NY] | 7,944 | 1,471 | 2,558 | 582 |
| Cobb County [GA] | 7,515 | 1,077 | 634 | 237 |
| Collin County [TX] | 6,908 | 1,100 | 1,550 | 469 |
| Suffolk County [MA] | 6,867 | 994 | 2,714 | 507 |
| Alameda County [CA] | 6,591 | 828 | 2,531 | 455 |
| Wake County [NC] | 5,937 | 1,167 | 1,404 | 427 |
| Mecklenburg County [NC] | 5,654 | 882 | 1,313 | 324 |
| Davidson County [TN] | 5,422 | 1,016 | 2,002 | 585 |
| Santa Clara County [CA] | 5,240 | 976 | 1,974 | 472 |
| Marion County [IN] | 5,154 | 1,179 | 1,410 | 517 |
| Fulton County [GA] | 5,133 | 1,018 | 1,370 | 428 |
| San Bernardino County [CA] | 5,122 | 1,022 | 867 | 266 |
| Dakota County [MN] | 4,914 | 743 | 1,592 | 385 |
| Snohomish County [WA] | 4,875 | 923 | 1,785 | 508 |
| Denver County [CO] | 4,748 | 931 | 2,126 | 569 |
| Wayne County [MI] | 4,388 | 812 | 1,530 | 561 |
| Multnomah County [OR] | 4,368 | 961 | 2,034 | 711 |
| Hamilton County [OH] | 4,359 | 866 | 1,710 | 522 |
| Middlesex County [NJ] | 4,336 | 765 | 911 | 307 |
| Hartford County [CT] | 4,281 | 762 | 1,299 | 445 |
| Union County [NJ] | 4,132 | 821 | 894 | 341 |
| Baltimore city [MD] | 4,065 | 674 | 1,360 | 474 |
| Arlington County [VA] | 3,827 | 640 | 1,440 | 506 |
| Jefferson County [KY] | 3,624 | 686 | 1,643 | 408 |
| Delaware County [PA] | 3,487 | 668 | 471 | 155 |
| Contra Costa County [CA] | 3,448 | 998 | 1,072 | 369 |
| Guilford County [NC] | 3,398 | 762 | 1,543 | 512 |
| Sacramento County [CA] | 3,383 | 827 | 1,095 | 337 |
| Providence County [RI] | 3,379 | 553 | 1,217 | 322 |
| Westchester County [NY] | 3,371 | 630 | 666 | 198 |
| Shelby County [TN] | 3,364 | 836 | 1,615 | 611 |
| Riverside County [CA] | 3,343 | 895 | 508 | 226 |
| New Castle County [DE] | 3,241 | 720 | 355 | 163 |
| Erie County [NY] | 3,189 | 673 | 1,416 | 459 |
| Denton County [TX] | 3,082 | 710 | 423 | 247 |
| St. Louis County [MO] | 3,041 | 578 | 701 | 239 |
| Johnson County [KS] | 3,038 | 578 | 635 | 236 |
| Salt Lake County [UT] | 3,031 | 577 | 1,288 | 353 |
| Howard County [MD] | 2,978 | 648 | 865 | 376 |
| Polk County [IA] | 2,962 | 639 | 1,335 | 397 |
| Orange County [CA] | 2,749 | 612 | 907 | 247 |
| Nassau County [NY] | 2,699 | 612 | 379 | 179 |
| Essex County [MA] | 2,682 | 564 | 751 | 251 |
| Milwaukee County [WI] | 2,457 | 569 | 811 | 286 |
| Bexar County [TX] | 2,440 | 834 | 1,236 | 707 |
| Monroe County [NY] | 2,396 | 573 | 1,305 | 513 |
| Pima County [AZ] | 2,311 | 550 | 1,121 | 412 |
| Richmond County [NY] | 2,309 | 468 | 365 | 171 |
| Hudson County [NJ] | 2,277 | 527 | 861 | 295 |
| New Haven County [CT] | 2,233 | 581 | 428 | 200 |
| Hillsborough County [FL] | 2,171 | 585 | 306 | 176 |
| Cuyahoga County [OH] | 2,066 | 561 | 571 | 278 |
| Oakland County [MI] | 2,027 | 419 | 338 | 130 |
| Onondaga County [NY] | 2,026 | 454 | 957 | 275 |
| Miami-Dade County [FL] | 2,018 | 563 | 516 | 289 |
| Will County [IL] | 1,924 | 671 | 226 | 130 |
| Oklahoma County [OK] | 1,885 | 514 | 259 | 137 |
| Pierce County [WA] | 1,878 | 462 | 512 | 229 |
| Norfolk County [MA] | 1,850 | 508 | 329 | 200 |
| Hampden County [MA] | 1,833 | 468 | 476 | 221 |
| Loudoun County [VA] | 1,826 | 407 | 263 | 124 |
| Travis County [TX] | 1,772 | 486 | 674 | 286 |
| Broward County [FL] | 1,769 | 465 | 161 | 93 |
| Sonoma County [CA] | 1,763 | 494 | 373 | 177 |
| Allegheny County [PA] | 1,758 | 415 | 534 | 239 |
| Mercer County [NJ] | 1,685 | 471 | 393 | 204 |
| Hillsborough County [NH] | 1,655 | 494 | 838 | 355 |
| Anne Arundel County [MD] | 1,644 | 445 | 207 | 110 |
| Henrico County [VA] | 1,621 | 627 | 697 | 311 |
| Burlington County [NJ] | 1,609 | 485 | 209 | 114 |
| Fairfield County [CT] | 1,585 | 501 | 420 | 207 |
| Camden County [NJ] | 1,568 | 431 | 305 | 125 |
| Duval County [FL] | 1,547 | 401 | 523 | 219 |
| Somerset County [NJ] | 1,505 | 552 | 334 | 168 |
| Washtenaw County [MI] | 1,459 | 404 | 561 | 245 |
| Suffolk County [NY] | 1,446 | 419 | 392 | 181 |
| Orange County [FL] | 1,394 | 429 | 252 | 142 |
| Bergen County [NJ] | 1,342 | 403 | 300 | 152 |
| Washington County [OR] | 1,294 | 487 | 651 | 364 |
| Dane County [WI] | 1,234 | 331 | 386 | 161 |
| Montgomery County [PA] | 1,181 | 290 | 114 | 65 |
| Albany County [NY] | 1,177 | 443 | 133 | 100 |
| Virginia Beach city [VA] | 1,073 | 415 | 272 | 142 |
| DuPage County [IL] | 1,071 | 334 | 266 | 156 |
| San Joaquin County [CA] | 1,050 | 378 | 247 | 171 |
| San Francisco County [CA] | 1,024 | 424 | 197 | 110 |
| Lancaster County [PA] | 958 | 355 | 538 | 311 |
| Kane County [IL] | 930 | 406 | 66 | 51 |
| Orange County [NY] | 902 | 376 | 118 | 101 |
| San Mateo County [CA] | 812 | 366 | 202 | 118 |
| Clark County [WA] | 805 | 377 | 488 | 341 |
| Bucks County [PA] | 791 | 254 | 220 | 118 |
| Solano County [CA] | 785 | 301 | 156 | 129 |
| Rockland County [NY] | 722 | 275 | 203 | 135 |
| Fresno County [CA] | 704 | 237 | 142 | 80 |
| Kern County [CA] | 674 | 268 | 189 | 135 |
| Anchorage Municipality [AK] | 664 | 356 | 283 | 175 |
| Washoe County [NV] | 648 | 398 | 141 | 98 |
| Monmouth County [NJ] | 627 | 194 | 47 | 42 |
| Plymouth County [MA] | 618 | 215 | 157 | 109 |
| El Paso County [CO] | 608 | 278 | 325 | 221 |
| Bristol County [MA] | 589 | 258 | 141 | 115 |
| Bernalillo County [NM] | 579 | 213 | 73 | 42 |
| Yolo County [CA] | 545 | 287 | 75 | 54 |
| Honolulu County [HI] | 544 | 219 | 219 | 107 |
| Passaic County [NJ] | 539 | 272 | 258 | 236 |
| Lake County [IL] | 531 | 281 | 11 | 26 |
| Ocean County [NJ] | 515 | 287 | 131 | 126 |
| Atlantic County [NJ] | 502 | 189 | 134 | 76 |
| Pinellas County [FL] | 456 | 206 | 108 | 78 |
| Morris County [NJ] | 444 | 185 | 73 | 54 |
| Macomb County [MI] | 426 | 192 | 53 | 45 |
| Jefferson Parish [LA] | 382 | 182 | 188 | 124 |
| Chester County [PA] | 322 | 154 | 55 | 44 |
| Ventura County [CA] | 242 | 121 | 33 | 33 |
| Lee County [FL] | 174 | 79 | 39 | 43 |
| Palm Beach County [FL] | 145 | 104 | 11 | 18 |
| Monterey County [CA] | 129 | 67 | 41 | 42 |
| Santa Barbara County [CA] | 128 | 63 | 8 | 13 |
| Stanislaus County [CA] | 105 | 64 | 35 | 48 |
| Collier County [FL] | 66 | 101 | (B) | - |
| Maui County [HI] | 38 | 38 | (B) | - |
| San Juan County [NM] | 36 | 56 | 12 | 20 |
| Placer County [CA] | 13 | 15 | (B) | - |
| Hawaii County [HI] | 8 | 12 | 4 | 6 |
| City / Metropolitan area / CBSA | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| New York-Newark-Jersey City [NY] | 109,259 | 4,134 | 30,976 | 1,736 |
| Washington-Arlington-Alexandria [DC-VA-MD-WV] | 101,636 | 3,560 | 28,359 | 1,561 |
| Minneapolis-St. Paul-Bloomington [MN-WI] | 55,330 | 2,307 | 22,719 | 1,217 |
| Atlanta-Sandy Springs-Roswell [GA] | 44,641 | 2,542 | 11,988 | 1,298 |
| Dallas-Fort Worth-Arlington [TX] | 39,069 | 2,656 | 9,730 | 1,174 |
| Seattle-Tacoma-Bellevue [WA] | 37,675 | 2,179 | 16,124 | 1,305 |
| Houston-The Woodlands-Sugar Land [TX] | 29,998 | 2,792 | 7,320 | 1,087 |
| Chicago-Naperville-Elgin [IL-IN] | 26,530 | 1,953 | 6,645 | 1,098 |
| Columbus [OH] | 24,069 | 1,828 | 9,363 | 884 |
| Los Angeles-Long Beach-Anaheim [CA] | 23,181 | 1,858 | 6,389 | 893 |
| Boston-Cambridge-Newton [MA-NH] | 22,184 | 1,813 | 6,192 | 815 |
| Philadelphia-Camden-Wilmington [PA-NJ-DE-MD] | 22,009 | 1,946 | 4,920 | 839 |
| Baltimore-Columbia-Towson [MD] | 18,657 | 1,493 | 4,494 | 823 |
| Denver-Aurora-Lakewood [CO] | 15,143 | 1,486 | 6,967 | 993 |
| San Francisco-Oakland-Hayward [CA] | 11,939 | 1,422 | 4,018 | 640 |
| San Diego-Carlsbad [CA] | 11,927 | 1,617 | 4,323 | 856 |
| Phoenix-Mesa-Scottsdale [AZ] | 9,055 | 1,224 | 3,430 | 569 |
| Las Vegas-Henderson-Paradise [NV] | 8,909 | 1,146 | 4,542 | 773 |
| Riverside-San Bernardino-Ontario [CA] | 8,465 | 1,264 | 1,375 | 331 |
| Worcester [MA-CT] | 8,150 | 984 | 3,142 | 601 |
| Kansas City [MO-KS] | 7,996 | 995 | 2,547 | 575 |
| Cincinnati [OH-KY-IN] | 6,900 | 1,080 | 2,481 | 565 |
| Detroit-Warren-Dearborn [MI] | 6,879 | 968 | 1,943 | 585 |
| Portland-Vancouver-Hillsboro [OR-WA] | 6,561 | 1,070 | 3,191 | 835 |
| Indianapolis-Carmel-Anderson [IN] | 6,501 | 1,355 | 1,675 | 540 |
| Nashville-Davidson-Murfreesboro-Franklin [TN] | 6,469 | 1,157 | 2,240 | 621 |
| Charlotte-Concord-Gastonia [NC-SC] | 6,314 | 937 | 1,423 | 344 |
| Raleigh [NC] | 6,002 | 1,167 | 1,404 | 427 |
| St. Louis [MO-IL] | 5,424 | 750 | 1,625 | 324 |
| San Jose-Sunnyvale-Santa Clara [CA] | 5,240 | 976 | 1,974 | 472 |
| Hartford-West Hartford-East Hartford [CT] | 4,484 | 780 | 1,310 | 447 |
| Providence-Warwick [RI-MA] | 4,247 | 652 | 1,405 | 349 |
| Sacramento-Roseville-Arden-Arcade [CA] | 3,970 | 959 | 1,170 | 350 |
| Miami-Fort Lauderdale-West Palm Beach [FL] | 3,932 | 727 | 688 | 309 |
| Virginia Beach-Norfolk-Newport News [VA-NC] | 3,805 | 735 | 1,246 | 349 |
| Louisville Jefferson County [KY] | 3,678 | 688 | 1,659 | 409 |
| Richmond [VA] | 3,676 | 827 | 1,116 | 350 |
| Memphis [TN-MS-AR] | 3,601 | 872 | 1,662 | 613 |
| Omaha-Council Bluffs [NE-IA] | 3,592 | 834 | 1,549 | 446 |
| Greensboro-High Point [NC] | 3,440 | 756 | 1,573 | 511 |
| Buffalo-Cheektowaga-Niagara Falls [NY] | 3,301 | 678 | 1,527 | 462 |
| Des Moines-West Des Moines [IA] | 3,069 | 615 | 1,346 | 399 |
| Salt Lake City [UT] | 3,040 | 576 | 1,294 | 354 |
| Oklahoma City [OK] | 2,902 | 591 | 581 | 229 |
| Tampa-St. Petersburg-Clearwater [FL] | 2,822 | 667 | 423 | 175 |
| Austin-Round Rock [TX] | 2,771 | 606 | 925 | 357 |
| Portland-South Portland [ME] | 2,733 | 426 | 1,597 | 347 |
| Milwaukee-Waukesha-West Allis [WI] | 2,691 | 555 | 906 | 287 |
| Rochester [NY] | 2,514 | 570 | 1,305 | 513 |
| San Antonio-New Braunfels [TX] | 2,493 | 841 | 1,241 | 709 |
| Cleveland-Elyria [OH] | 2,402 | 535 | 626 | 276 |
| Tucson [AZ] | 2,311 | 550 | 1,121 | 412 |
| Syracuse [NY] | 2,269 | 450 | 982 | 279 |
| New Haven-Milford [CT] | 2,233 | 581 | 428 | 200 |
| Orlando-Kissimmee-Sanford [FL] | 2,135 | 553 | 529 | 239 |
| Springfield [MA] | 2,039 | 479 | 511 | 220 |
| Durham-Chapel Hill [NC] | 1,978 | 584 | 394 | 225 |
| Pittsburgh [PA] | 1,934 | 425 | 572 | 243 |
| Grand Rapids-Wyoming [MI] | 1,824 | 569 | 701 | 313 |
| Lansing-East Lansing [MI] | 1,765 | 614 | 1,185 | 561 |
| Santa Rosa [CA] | 1,763 | 494 | 373 | 177 |
| Trenton [NJ] | 1,685 | 471 | 393 | 204 |
| Manchester-Nashua [NH] | 1,655 | 494 | 838 | 355 |
| Jacksonville [FL] | 1,640 | 415 | 607 | 236 |
| Albany-Schenectady-Troy [NY] | 1,634 | 508 | 206 | 126 |
| Bridgeport-Stamford-Norwalk [CT] | 1,585 | 501 | 420 | 207 |
| Ann Arbor [MI] | 1,459 | 404 | 561 | 245 |
| Allentown-Bethlehem-Easton [PA-NJ] | 1,451 | 369 | 506 | 212 |
| Dayton [OH] | 1,292 | 298 | 340 | 168 |
| Madison [WI] | 1,234 | 331 | 386 | 161 |
| New Orleans-Metairie [LA] | 1,077 | 309 | 331 | 157 |
| Stockton-Lodi [CA] | 1,050 | 378 | 247 | 171 |
| Harrisburg-Carlisle [PA] | 973 | 289 | 509 | 192 |
| Lancaster [PA] | 958 | 355 | 538 | 311 |
| Tulsa [OK] | 905 | 346 | 176 | 108 |
| Baton Rouge [LA] | 856 | 343 | 153 | 107 |
| Vallejo-Fairfield [CA] | 785 | 301 | 156 | 129 |
| Fresno [CA] | 704 | 237 | 142 | 80 |
| Anchorage [AK] | 682 | 358 | 301 | 178 |
| Bakersfield [CA] | 674 | 268 | 189 | 135 |
| Reno [NV] | 648 | 398 | 141 | 98 |
| Spokane-Spokane Valley [WA] | 647 | 254 | 472 | 239 |
| Albuquerque [NM] | 646 | 217 | 73 | 42 |
| Colorado Springs [CO] | 608 | 278 | 325 | 221 |
| Akron [OH] | 606 | 176 | 150 | 90 |
| Urban Honolulu [HI] | 544 | 219 | 219 | 107 |
| Deltona-Daytona Beach-Ormond Beach [FL] | 506 | 260 | 218 | 182 |
| Atlantic City-Hammonton [NJ] | 502 | 189 | 134 | 76 |
| Lafayette [LA] | 329 | 263 | 96 | 96 |
| Oxnard-Thousand Oaks-Ventura [CA] | 242 | 121 | 33 | 33 |
| Cape Coral-Fort Myers [FL] | 174 | 79 | 39 | 43 |
| New York-Newark-Jersey City [NY-NJ-PA] | 161 | 129 | 43 | 58 |
| Salinas [CA] | 129 | 67 | 41 | 42 |
| Santa Maria-Santa Barbara [CA] | 128 | 63 | 8 | 13 |
| Modesto [CA] | 105 | 64 | 35 | 48 |
| Naples-Immokalee-Marco Island [FL] | 66 | 101 | (B) | - |
| Kahului-Wailuku-Lahaina [HI] | 38 | 38 | (B) | - |
| Farmington [NM] | 36 | 56 | 12 | 20 |
| Hilo [HI] | 8 | 12 | 4 | 6 |