| Country | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| United States | 800,364 | 11,771 | 315,196 | 6,256 |
| State | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| California | 184,194 | 5,406 | 73,097 | 2,802 |
| New York | 155,224 | 5,786 | 74,330 | 3,382 |
| New Jersey | 54,525 | 2,426 | 18,897 | 1,363 |
| Texas | 53,177 | 2,586 | 18,427 | 1,568 |
| Virginia | 33,009 | 2,524 | 11,226 | 1,233 |
| Michigan | 26,343 | 1,686 | 11,779 | 1,106 |
| Pennsylvania | 25,021 | 1,937 | 10,739 | 1,241 |
| Illinois | 24,508 | 1,697 | 8,338 | 1,019 |
| Georgia | 21,774 | 2,037 | 8,318 | 1,094 |
| Washington | 21,706 | 1,985 | 8,852 | 1,031 |
| Maryland | 21,406 | 1,581 | 6,594 | 773 |
| Florida | 20,422 | 1,837 | 6,411 | 1,009 |
| Massachusetts | 18,901 | 1,611 | 6,978 | 1,033 |
| Ohio | 13,352 | 1,356 | 4,893 | 906 |
| North Carolina | 10,888 | 1,258 | 3,619 | 611 |
| Connecticut | 10,873 | 980 | 4,111 | 594 |
| Indiana | 9,234 | 1,116 | 2,786 | 544 |
| Colorado | 7,862 | 1,055 | 3,073 | 718 |
| Arizona | 7,396 | 1,322 | 2,350 | 547 |
| Tennessee | 6,682 | 978 | 2,658 | 613 |
| Minnesota | 6,655 | 832 | 1,946 | 527 |
| Missouri | 6,061 | 946 | 1,944 | 439 |
| Oregon | 4,940 | 1,082 | 1,895 | 569 |
| Wisconsin | 4,813 | 770 | 1,902 | 524 |
| Nevada | 4,544 | 929 | 2,054 | 537 |
| Kentucky | 4,113 | 800 | 1,641 | 493 |
| Kansas | 3,936 | 559 | 1,098 | 265 |
| Louisiana | 3,352 | 717 | 1,276 | 486 |
| New Hampshire | 3,343 | 743 | 1,837 | 477 |
| Utah | 3,245 | 800 | 1,756 | 529 |
| Alabama | 3,191 | 687 | 858 | 275 |
| South Carolina | 2,875 | 702 | 1,070 | 368 |
| Delaware | 2,379 | 557 | 525 | 166 |
| Iowa | 2,353 | 654 | 729 | 259 |
| Nebraska | 2,282 | 606 | 990 | 391 |
| Arkansas | 2,067 | 473 | 593 | 190 |
| Oklahoma | 1,884 | 416 | 545 | 149 |
| Mississippi | 1,759 | 427 | 754 | 292 |
| Rhode Island | 1,736 | 540 | 672 | 417 |
| District of Columbia | 1,269 | 367 | 348 | 164 |
| Idaho | 1,249 | 458 | 896 | 417 |
| West Virginia | 1,028 | 340 | 305 | 155 |
| New Mexico | 1,023 | 377 | 235 | 104 |
| Vermont | 992 | 359 | 641 | 241 |
| North Dakota | 695 | 260 | 230 | 168 |
| South Dakota | 601 | 327 | 407 | 221 |
| Alaska | 486 | 344 | 252 | 204 |
| Hawaii | 430 | 189 | 139 | 86 |
| Wyoming | 232 | 116 | 110 | 63 |
| Maine | 203 | 98 | 18 | 27 |
| Montana | 131 | 97 | 54 | 54 |
| Puerto Rico | 34 | 41 | 34 | 41 |
| County | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| Queens County [NY] | 82,377 | 4,296 | 41,425 | 2,662 |
| Los Angeles County [CA] | 27,899 | 1,869 | 11,814 | 1,205 |
| Santa Clara County [CA] | 23,822 | 1,580 | 6,965 | 778 |
| Kings County [NY] | 20,551 | 1,514 | 11,926 | 1,128 |
| Middlesex County [NJ] | 18,336 | 1,443 | 5,702 | 774 |
| Alameda County [CA] | 18,298 | 1,881 | 6,532 | 939 |
| King County [WA] | 14,871 | 1,761 | 6,084 | 924 |
| Sacramento County [CA] | 13,905 | 1,824 | 5,781 | 871 |
| Bronx County [NY] | 13,876 | 1,354 | 7,241 | 1,013 |
| Harris County [TX] | 13,224 | 1,455 | 4,901 | 815 |
| Fairfax County [VA] | 13,064 | 1,523 | 5,014 | 821 |
| Fresno County [CA] | 12,410 | 1,378 | 5,906 | 730 |
| Wayne County [MI] | 11,858 | 1,103 | 5,963 | 718 |
| Cook County [IL] | 11,489 | 1,286 | 4,397 | 798 |
| Orange County [CA] | 10,418 | 1,347 | 3,193 | 595 |
| Montgomery County [MD] | 10,346 | 986 | 2,916 | 462 |
| San Joaquin County [CA] | 9,817 | 1,612 | 4,162 | 753 |
| Middlesex County [MA] | 9,694 | 1,261 | 3,245 | 707 |
| Nassau County [NY] | 8,602 | 1,135 | 2,745 | 536 |
| Dallas County [TX] | 8,375 | 1,128 | 2,917 | 599 |
| Contra Costa County [CA] | 7,961 | 1,064 | 3,090 | 574 |
| Kern County [CA] | 6,820 | 1,045 | 3,449 | 577 |
| Maricopa County [AZ] | 6,295 | 1,171 | 1,940 | 475 |
| Collin County [TX] | 6,184 | 1,070 | 1,789 | 540 |
| Tarrant County [TX] | 6,094 | 1,019 | 3,105 | 726 |
| New York County [NY] | 5,955 | 1,101 | 1,814 | 557 |
| DuPage County [IL] | 5,516 | 774 | 1,452 | 327 |
| Riverside County [CA] | 5,381 | 1,595 | 2,112 | 738 |
| DeKalb County [GA] | 5,270 | 992 | 3,404 | 760 |
| Loudoun County [VA] | 5,187 | 1,059 | 1,802 | 506 |
| Stanislaus County [CA] | 4,878 | 882 | 2,566 | 662 |
| Passaic County [NJ] | 4,804 | 832 | 2,029 | 377 |
| San Diego County [CA] | 4,642 | 844 | 1,471 | 446 |
| Bergen County [NJ] | 4,620 | 689 | 1,513 | 349 |
| Oakland County [MI] | 4,449 | 634 | 1,035 | 267 |
| Suffolk County [NY] | 4,398 | 627 | 1,378 | 313 |
| Gwinnett County [GA] | 4,382 | 845 | 1,346 | 378 |
| San Mateo County [CA] | 4,012 | 791 | 1,390 | 426 |
| Fort Bend County [TX] | 3,878 | 906 | 917 | 359 |
| Montgomery County [PA] | 3,781 | 624 | 1,445 | 367 |
| Hudson County [NJ] | 3,757 | 609 | 1,345 | 299 |
| Fairfield County [CT] | 3,705 | 686 | 1,506 | 391 |
| Philadelphia County [PA] | 3,687 | 808 | 1,873 | 596 |
| Fulton County [GA] | 3,627 | 765 | 489 | 227 |
| Wake County [NC] | 3,619 | 753 | 1,185 | 417 |
| Macomb County [MI] | 3,602 | 697 | 1,874 | 452 |
| Allegheny County [PA] | 3,399 | 630 | 1,525 | 515 |
| San Bernardino County [CA] | 3,255 | 809 | 1,013 | 349 |
| Atlantic County [NJ] | 3,171 | 584 | 1,778 | 417 |
| Hartford County [CT] | 3,133 | 630 | 1,251 | 327 |
| Washington County [OR] | 3,058 | 867 | 1,022 | 440 |
| Delaware County [PA] | 3,056 | 552 | 1,234 | 350 |
| Westchester County [NY] | 3,046 | 682 | 762 | 271 |
| Mercer County [NJ] | 2,967 | 770 | 1,086 | 509 |
| Somerset County [NJ] | 2,902 | 589 | 370 | 163 |
| Erie County [NY] | 2,854 | 632 | 1,416 | 348 |
| Morris County [NJ] | 2,846 | 661 | 992 | 333 |
| Cuyahoga County [OH] | 2,809 | 560 | 1,058 | 345 |
| Baltimore County [MD] | 2,760 | 722 | 1,010 | 317 |
| St. Louis County [MO] | 2,755 | 711 | 715 | 282 |
| Prince William County [VA] | 2,741 | 688 | 895 | 311 |
| Essex County [NJ] | 2,736 | 599 | 939 | 341 |
| Salt Lake County [UT] | 2,676 | 744 | 1,493 | 502 |
| Arlington County [VA] | 2,650 | 683 | 922 | 300 |
| Cobb County [GA] | 2,638 | 747 | 787 | 360 |
| Travis County [TX] | 2,633 | 669 | 531 | 237 |
| Broward County [FL] | 2,602 | 509 | 854 | 349 |
| Snohomish County [WA] | 2,575 | 597 | 1,150 | 348 |
| Franklin County [OH] | 2,573 | 618 | 732 | 283 |
| Clark County [NV] | 2,549 | 663 | 1,180 | 448 |
| Solano County [CA] | 2,541 | 644 | 1,064 | 315 |
| Mecklenburg County [NC] | 2,541 | 609 | 945 | 348 |
| Worcester County [MA] | 2,521 | 710 | 1,169 | 428 |
| Denton County [TX] | 2,496 | 600 | 691 | 250 |
| New Haven County [CT] | 2,454 | 513 | 830 | 309 |
| Howard County [MD] | 2,426 | 660 | 574 | 288 |
| Burlington County [NJ] | 2,345 | 694 | 1,059 | 426 |
| San Francisco County [CA] | 2,322 | 624 | 595 | 254 |
| Hillsborough County [FL] | 2,307 | 568 | 588 | 211 |
| New Castle County [DE] | 2,232 | 563 | 467 | 178 |
| Richmond County [NY] | 2,230 | 532 | 866 | 290 |
| Arapahoe County [CO] | 2,157 | 562 | 657 | 286 |
| Jefferson County [KY] | 2,142 | 635 | 874 | 386 |
| Hennepin County [MN] | 2,134 | 438 | 440 | 169 |
| Suffolk County [MA] | 2,131 | 481 | 579 | 249 |
| Bexar County [TX] | 2,089 | 583 | 660 | 284 |
| Palm Beach County [FL] | 2,072 | 538 | 773 | 305 |
| Davidson County [TN] | 2,013 | 541 | 1,182 | 417 |
| Onondaga County [NY] | 2,003 | 463 | 1,159 | 301 |
| Ventura County [CA] | 1,953 | 481 | 701 | 254 |
| Miami-Dade County [FL] | 1,949 | 670 | 383 | 268 |
| Monroe County [NY] | 1,928 | 637 | 1,169 | 512 |
| Hillsborough County [NH] | 1,863 | 588 | 1,081 | 357 |
| Prince George s County [MD] | 1,852 | 486 | 697 | 264 |
| Marion County [IN] | 1,768 | 569 | 475 | 276 |
| Johnson County [KS] | 1,722 | 438 | 418 | 146 |
| Lake County [IL] | 1,696 | 456 | 439 | 202 |
| Milwaukee County [WI] | 1,681 | 522 | 832 | 406 |
| Duval County [FL] | 1,657 | 583 | 785 | 478 |
| Camden County [NJ] | 1,652 | 446 | 645 | 248 |
| Yolo County [CA] | 1,628 | 456 | 828 | 306 |
| Henrico County [VA] | 1,576 | 388 | 449 | 188 |
| Orange County [FL] | 1,552 | 541 | 287 | 127 |
| Providence County [RI] | 1,516 | 503 | 630 | 398 |
| Washoe County [NV] | 1,501 | 591 | 716 | 307 |
| Norfolk County [MA] | 1,485 | 456 | 384 | 277 |
| Ramsey County [MN] | 1,471 | 496 | 820 | 383 |
| Bucks County [PA] | 1,432 | 376 | 404 | 156 |
| Chester County [PA] | 1,360 | 337 | 302 | 147 |
| Placer County [CA] | 1,356 | 468 | 380 | 191 |
| Will County [IL] | 1,339 | 415 | 411 | 217 |
| Union County [NJ] | 1,312 | 406 | 554 | 346 |
| District of Columbia [DC] | 1,269 | 367 | 348 | 164 |
| Guilford County [NC] | 1,268 | 401 | 563 | 274 |
| Shelby County [TN] | 1,266 | 343 | 417 | 158 |
| Baltimore city [MD] | 1,234 | 426 | 686 | 303 |
| Albany County [NY] | 1,176 | 315 | 361 | 155 |
| Essex County [MA] | 1,132 | 367 | 506 | 299 |
| Monmouth County [NJ] | 1,110 | 321 | 258 | 118 |
| Hamilton County [OH] | 1,095 | 475 | 504 | 348 |
| Denver County [CO] | 1,088 | 441 | 630 | 384 |
| Washtenaw County [MI] | 1,004 | 289 | 206 | 96 |
| Polk County [IA] | 971 | 435 | 481 | 218 |
| Pinellas County [FL] | 970 | 488 | 212 | 131 |
| Hampden County [MA] | 964 | 432 | 786 | 381 |
| Clark County [WA] | 950 | 437 | 242 | 167 |
| Dane County [WI] | 880 | 320 | 345 | 225 |
| Sonoma County [CA] | 873 | 350 | 372 | 198 |
| Jefferson Parish [LA] | 864 | 475 | 403 | 260 |
| Rockland County [NY] | 828 | 320 | 123 | 81 |
| Dakota County [MN] | 718 | 256 | 248 | 147 |
| Pima County [AZ] | 694 | 269 | 294 | 182 |
| Multnomah County [OR] | 685 | 314 | 428 | 262 |
| El Paso County [CO] | 660 | 442 | 392 | 383 |
| Santa Barbara County [CA] | 624 | 228 | 129 | 89 |
| Virginia Beach city [VA] | 621 | 299 | 138 | 93 |
| Monterey County [CA] | 597 | 273 | 148 | 94 |
| Lancaster County [PA] | 574 | 250 | 333 | 184 |
| Bernalillo County [NM] | 562 | 276 | 85 | 57 |
| Anne Arundel County [MD] | 550 | 292 | 228 | 152 |
| Pierce County [WA] | 497 | 219 | 192 | 123 |
| Kane County [IL] | 466 | 257 | 128 | 123 |
| Lee County [FL] | 459 | 282 | 148 | 135 |
| Orange County [NY] | 458 | 172 | 152 | 107 |
| Anchorage Municipality [AK] | 433 | 337 | 233 | 204 |
| Oklahoma County [OK] | 420 | 188 | 126 | 84 |
| Ocean County [NJ] | 377 | 181 | 145 | 100 |
| Honolulu County [HI] | 361 | 172 | 112 | 77 |
| Bristol County [MA] | 237 | 154 | 51 | 48 |
| Plymouth County [MA] | 188 | 104 | 71 | 62 |
| Collier County [FL] | 109 | 99 | 47 | 47 |
| Navajo County [AZ] | 93 | 95 | 40 | 44 |
| Maui County [HI] | 66 | 95 | 24 | 37 |
| San Juan County [NM] | 23 | 38 | (B) | - |
| 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] | 186,412 | 5,882 | 82,700 | 3,417 |
| Washington-Arlington-Alexandria [DC-VA-MD-WV] | 40,397 | 2,774 | 13,539 | 1,236 |
| Los Angeles-Long Beach-Anaheim [CA] | 38,317 | 2,377 | 15,007 | 1,557 |
| San Francisco-Oakland-Hayward [CA] | 32,985 | 2,595 | 11,716 | 1,258 |
| San Jose-Sunnyvale-Santa Clara [CA] | 23,974 | 1,579 | 7,078 | 779 |
| Dallas-Fort Worth-Arlington [TX] | 23,535 | 1,973 | 8,696 | 1,164 |
| Chicago-Naperville-Elgin [IL-IN] | 22,015 | 1,633 | 7,114 | 878 |
| Philadelphia-Camden-Wilmington [PA-NJ-DE-MD] | 20,104 | 1,510 | 7,596 | 925 |
| Detroit-Warren-Dearborn [MI] | 19,935 | 1,461 | 8,898 | 951 |
| Atlanta-Sandy Springs-Roswell [GA] | 18,622 | 1,906 | 6,935 | 998 |
| Houston-The Woodlands-Sugar Land [TX] | 18,534 | 1,796 | 6,073 | 850 |
| Seattle-Tacoma-Bellevue [WA] | 17,943 | 1,877 | 7,426 | 989 |
| Sacramento-Roseville-Arden-Arcade [CA] | 17,199 | 2,063 | 7,006 | 955 |
| Boston-Cambridge-Newton [MA-NH] | 15,101 | 1,481 | 4,924 | 874 |
| Fresno [CA] | 12,410 | 1,378 | 5,906 | 730 |
| Stockton-Lodi [CA] | 9,817 | 1,612 | 4,162 | 753 |
| Riverside-San Bernardino-Ontario [CA] | 8,636 | 1,810 | 3,125 | 814 |
| Baltimore-Columbia-Towson [MD] | 7,335 | 1,162 | 2,614 | 506 |
| Bakersfield [CA] | 6,820 | 1,045 | 3,449 | 577 |
| Miami-Fort Lauderdale-West Palm Beach [FL] | 6,623 | 1,117 | 2,010 | 555 |
| Phoenix-Mesa-Scottsdale [AZ] | 6,335 | 1,171 | 1,957 | 476 |
| Denver-Aurora-Lakewood [CO] | 5,779 | 878 | 2,240 | 591 |
| Minneapolis-St. Paul-Bloomington [MN-WI] | 5,502 | 769 | 1,769 | 502 |
| Indianapolis-Carmel-Anderson [IN] | 5,311 | 803 | 1,716 | 445 |
| Portland-Vancouver-Hillsboro [OR-WA] | 4,986 | 983 | 1,875 | 589 |
| Modesto [CA] | 4,878 | 882 | 2,566 | 662 |
| San Diego-Carlsbad [CA] | 4,642 | 844 | 1,471 | 446 |
| St. Louis [MO-IL] | 4,268 | 827 | 1,541 | 407 |
| Tampa-St. Petersburg-Clearwater [FL] | 3,926 | 896 | 927 | 289 |
| Hartford-West Hartford-East Hartford [CT] | 3,899 | 690 | 1,511 | 352 |
| Pittsburgh [PA] | 3,873 | 666 | 1,641 | 528 |
| Austin-Round Rock [TX] | 3,766 | 755 | 719 | 286 |
| Bridgeport-Stamford-Norwalk [CT] | 3,705 | 686 | 1,506 | 391 |
| Cleveland-Elyria [OH] | 3,652 | 637 | 1,419 | 409 |
| Raleigh [NC] | 3,619 | 753 | 1,185 | 417 |
| Charlotte-Concord-Gastonia [NC-SC] | 3,378 | 722 | 1,170 | 365 |
| Atlantic City-Hammonton [NJ] | 3,171 | 584 | 1,778 | 417 |
| Nashville-Davidson-Murfreesboro-Franklin [TN] | 3,105 | 685 | 1,314 | 442 |
| Richmond [VA] | 3,072 | 563 | 717 | 263 |
| Buffalo-Cheektowaga-Niagara Falls [NY] | 3,058 | 662 | 1,461 | 357 |
| Orlando-Kissimmee-Sanford [FL] | 2,985 | 727 | 823 | 290 |
| Trenton [NJ] | 2,967 | 770 | 1,086 | 509 |
| Columbus [OH] | 2,957 | 651 | 750 | 284 |
| Salt Lake City [UT] | 2,676 | 744 | 1,493 | 502 |
| Cincinnati [OH-KY-IN] | 2,668 | 558 | 975 | 342 |
| Milwaukee-Waukesha-West Allis [WI] | 2,640 | 619 | 1,111 | 430 |
| Worcester [MA-CT] | 2,569 | 707 | 1,208 | 425 |
| Las Vegas-Henderson-Paradise [NV] | 2,549 | 663 | 1,180 | 448 |
| Vallejo-Fairfield [CA] | 2,541 | 644 | 1,064 | 315 |
| Kansas City [MO-KS] | 2,485 | 476 | 698 | 187 |
| New Haven-Milford [CT] | 2,454 | 513 | 830 | 309 |
| Louisville Jefferson County [KY] | 2,249 | 637 | 927 | 391 |
| Allentown-Bethlehem-Easton [PA-NJ] | 2,156 | 626 | 622 | 247 |
| Rochester [NY] | 2,134 | 646 | 1,214 | 510 |
| Syracuse [NY] | 2,104 | 481 | 1,204 | 305 |
| San Antonio-New Braunfels [TX] | 2,103 | 581 | 674 | 283 |
| Jacksonville [FL] | 2,052 | 633 | 894 | 468 |
| Albany-Schenectady-Troy [NY] | 2,025 | 480 | 732 | 248 |
| Akron [OH] | 1,992 | 634 | 1,337 | 508 |
| Providence-Warwick [RI-MA] | 1,973 | 571 | 723 | 415 |
| Oxnard-Thousand Oaks-Ventura [CA] | 1,953 | 481 | 701 | 254 |
| Virginia Beach-Norfolk-Newport News [VA-NC] | 1,869 | 558 | 576 | 219 |
| Manchester-Nashua [NH] | 1,863 | 588 | 1,081 | 357 |
| Lansing-East Lansing [MI] | 1,759 | 501 | 1,022 | 395 |
| Omaha-Council Bluffs [NE-IA] | 1,701 | 531 | 900 | 381 |
| Harrisburg-Carlisle [PA] | 1,505 | 459 | 852 | 363 |
| Reno [NV] | 1,501 | 591 | 716 | 307 |
| Greensboro-High Point [NC] | 1,417 | 435 | 649 | 294 |
| Memphis [TN-MS-AR] | 1,391 | 357 | 426 | 157 |
| Grand Rapids-Wyoming [MI] | 1,358 | 417 | 764 | 292 |
| New Orleans-Metairie [LA] | 1,358 | 520 | 474 | 278 |
| Springfield [MA] | 1,320 | 481 | 866 | 384 |
| Des Moines-West Des Moines [IA] | 1,209 | 539 | 493 | 221 |
| Ann Arbor [MI] | 1,004 | 289 | 206 | 96 |
| Madison [WI] | 947 | 327 | 352 | 226 |
| Dayton [OH] | 896 | 345 | 237 | 150 |
| Durham-Chapel Hill [NC] | 874 | 337 | 203 | 162 |
| Santa Rosa [CA] | 873 | 350 | 372 | 198 |
| Tucson [AZ] | 694 | 269 | 294 | 182 |
| Colorado Springs [CO] | 660 | 442 | 392 | 383 |
| Oklahoma City [OK] | 643 | 258 | 227 | 110 |
| Baton Rouge [LA] | 624 | 229 | 251 | 150 |
| Santa Maria-Santa Barbara [CA] | 624 | 228 | 129 | 89 |
| Albuquerque [NM] | 608 | 280 | 113 | 66 |
| Salinas [CA] | 597 | 273 | 148 | 94 |
| Lancaster [PA] | 574 | 250 | 333 | 184 |
| Cape Coral-Fort Myers [FL] | 459 | 282 | 148 | 135 |
| New York-Newark-Jersey City [NY-NJ-PA] | 438 | 310 | 206 | 189 |
| Deltona-Daytona Beach-Ormond Beach [FL] | 435 | 222 | 127 | 112 |
| Anchorage [AK] | 433 | 337 | 233 | 204 |
| Tulsa [OK] | 416 | 169 | 83 | 51 |
| Urban Honolulu [HI] | 361 | 172 | 112 | 77 |
| Spokane-Spokane Valley [WA] | 339 | 143 | 190 | 106 |
| Lafayette [LA] | 201 | 129 | 132 | 101 |
| Naples-Immokalee-Marco Island [FL] | 109 | 99 | 47 | 47 |
| Show Low [AZ] | 93 | 95 | 40 | 44 |
| Portland-South Portland [ME] | 89 | 73 | 18 | 27 |
| Kahului-Wailuku-Lahaina [HI] | 66 | 95 | 24 | 37 |
| Farmington [NM] | 23 | 38 | (B) | - |