| Country | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| United States | 195,260 | 6,368 | 81,385 | 3,479 |
| State | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| California | 27,440 | 2,302 | 10,405 | 1,186 |
| Virginia | 23,160 | 1,724 | 8,550 | 1,082 |
| Maryland | 19,855 | 1,390 | 7,435 | 846 |
| Washington | 15,960 | 1,740 | 7,590 | 929 |
| Texas | 15,470 | 1,650 | 6,470 | 1,110 |
| Georgia | 12,415 | 1,752 | 5,585 | 1,143 |
| Minnesota | 9,490 | 1,009 | 4,395 | 504 |
| Colorado | 8,735 | 1,135 | 4,200 | 701 |
| Nevada | 7,075 | 1,045 | 3,915 | 658 |
| District of Columbia | 5,260 | 810 | 2,475 | 608 |
| New York | 5,160 | 932 | 1,870 | 552 |
| Massachusetts | 4,900 | 777 | 1,920 | 442 |
| Ohio | 4,675 | 802 | 1,735 | 330 |
| Pennsylvania | 4,075 | 718 | 1,600 | 489 |
| Illinois | 3,985 | 756 | 1,495 | 467 |
| Tennessee | 3,610 | 1,011 | 1,995 | 822 |
| North Carolina | 3,545 | 724 | 1,340 | 401 |
| Arizona | 2,180 | 574 | 1,180 | 384 |
| Florida | 2,180 | 556 | 695 | 245 |
| Missouri | 2,150 | 529 | 915 | 306 |
| Indiana | 1,805 | 669 | 550 | 203 |
| New Jersey | 1,780 | 417 | 475 | 185 |
| Oregon | 1,690 | 384 | 670 | 225 |
| Michigan | 1,125 | 330 | 505 | 186 |
| Kansas | 820 | 324 | 395 | 189 |
| South Dakota | 735 | 295 | 315 | 135 |
| Oklahoma | 575 | 323 | 240 | 173 |
| Kentucky | 550 | 225 | 350 | 164 |
| Iowa | 545 | 225 | 220 | 162 |
| Wisconsin | 390 | 146 | 70 | 49 |
| Connecticut | 380 | 187 | 160 | 118 |
| Nebraska | 355 | 185 | 195 | 146 |
| Louisiana | 345 | 185 | 165 | 109 |
| New Mexico | 320 | 144 | 65 | 41 |
| South Carolina | 300 | 210 | 185 | 119 |
| Utah | 240 | 152 | 70 | 63 |
| Maine | 235 | 187 | 95 | 82 |
| Alabama | 230 | 117 | 130 | 75 |
| Rhode Island | 205 | 188 | 155 | 167 |
| West Virginia | 205 | 155 | 90 | 79 |
| Mississippi | 190 | 182 | (D) | (D) |
| Alaska | 180 | 101 | 140 | 109 |
| Delaware | 160 | 107 | 65 | 67 |
| Idaho | 145 | 87 | 90 | 83 |
| Arkansas | 75 | 60 | 30 | 38 |
| Montana | 75 | 62 | 55 | 54 |
| Wyoming | 65 | 58 | 40 | 36 |
| North Dakota | 60 | 52 | 20 | 28 |
| Hawaii | 50 | 46 | 25 | 37 |
| New Hampshire | 50 | 74 | (D) | (D) |
| Vermont | 45 | 39 | (D) | (D) |
| County | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| Montgomery County [MD] | 13,325 | 1,394 | 4,935 | 716 |
| King County [WA] | 12,110 | 1,334 | 5,680 | 698 |
| Fairfax County [VA] | 9,080 | 1,209 | 3,365 | 602 |
| Los Angeles County [CA] | 7,845 | 1,007 | 2,760 | 507 |
| Clark County [NV] | 6,965 | 1,045 | 3,865 | 661 |
| DeKalb County [GA] | 6,670 | 1,134 | 3,540 | 731 |
| Dallas County [TX] | 6,440 | 938 | 2,525 | 529 |
| District of Columbia [DC] | 5,260 | 810 | 2,475 | 608 |
| Arapahoe County [CO] | 5,000 | 840 | 2,610 | 568 |
| Prince George s County [MD] | 3,860 | 679 | 1,340 | 395 |
| Santa Clara County [CA] | 3,770 | 832 | 1,640 | 434 |
| Ramsey County [MN] | 3,610 | 732 | 1,670 | 294 |
| San Diego County [CA] | 3,560 | 892 | 1,765 | 594 |
| Alameda County [CA] | 3,460 | 676 | 1,620 | 385 |
| Arlington County [VA] | 3,345 | 630 | 1,360 | 495 |
| Cook County [IL] | 3,185 | 721 | 1,340 | 460 |
| Gwinnett County [GA] | 3,075 | 952 | 1,270 | 673 |
| Hennepin County [MN] | 3,060 | 546 | 1,340 | 290 |
| Harris County [TX] | 2,945 | 755 | 1,325 | 390 |
| Middlesex County [MA] | 2,705 | 612 | 805 | 254 |
| Denver County [CO] | 2,295 | 714 | 1,030 | 391 |
| Snohomish County [WA] | 2,240 | 671 | 1,010 | 380 |
| Franklin County [OH] | 2,120 | 565 | 900 | 271 |
| Davidson County [TN] | 1,855 | 576 | 905 | 427 |
| Philadelphia County [PA] | 1,830 | 412 | 595 | 253 |
| Maricopa County [AZ] | 1,660 | 525 | 900 | 294 |
| Prince William County [VA] | 1,650 | 521 | 585 | 297 |
| Suffolk County [MA] | 1,630 | 473 | 950 | 349 |
| Collin County [TX] | 1,610 | 454 | 470 | 252 |
| Mecklenburg County [NC] | 1,420 | 462 | 485 | 183 |
| San Bernardino County [CA] | 1,360 | 875 | 310 | 191 |
| Multnomah County [OR] | 1,360 | 354 | 560 | 213 |
| Sacramento County [CA] | 1,355 | 744 | 680 | 314 |
| New York County [NY] | 1,200 | 460 | 120 | 128 |
| Sonoma County [CA] | 1,195 | 419 | 300 | 147 |
| Marion County [IN] | 1,165 | 590 | 360 | 164 |
| Hamilton County [OH] | 1,160 | 406 | 320 | 150 |
| Bronx County [NY] | 1,070 | 478 | 550 | 360 |
| Fort Bend County [TX] | 1,050 | 737 | 460 | 362 |
| Contra Costa County [CA] | 1,040 | 593 | 310 | 165 |
| Dakota County [MN] | 1,005 | 352 | 475 | 215 |
| Baltimore County [MD] | 985 | 330 | 465 | 216 |
| Orange County [CA] | 965 | 368 | 380 | 173 |
| Wake County [NC] | 890 | 357 | 340 | 225 |
| Delaware County [PA] | 875 | 418 | 225 | 138 |
| Shelby County [TN] | 875 | 512 | 435 | 335 |
| Fulton County [GA] | 815 | 412 | 280 | 137 |
| Cobb County [GA] | 805 | 479 | 60 | 57 |
| San Francisco County [CA] | 735 | 390 | 165 | 96 |
| Baltimore city [MD] | 710 | 456 | 475 | 381 |
| Queens County [NY] | 710 | 294 | 325 | 205 |
| St. Louis County [MO] | 700 | 351 | 255 | 184 |
| Denton County [TX] | 700 | 407 | 255 | 224 |
| Hillsborough County [FL] | 680 | 317 | 125 | 133 |
| Monroe County [NY] | 645 | 321 | 395 | 215 |
| Tarrant County [TX] | 645 | 316 | 255 | 174 |
| Riverside County [CA] | 590 | 528 | 50 | 53 |
| Johnson County [KS] | 570 | 256 | 215 | 107 |
| Lancaster County [PA] | 520 | 331 | 425 | 307 |
| Pima County [AZ] | 490 | 268 | 275 | 232 |
| Travis County [TX] | 480 | 226 | 340 | 174 |
| Loudoun County [VA] | 470 | 264 | 100 | 88 |
| Erie County [NY] | 460 | 247 | 245 | 161 |
| Miami-Dade County [FL] | 450 | 316 | 80 | 75 |
| Howard County [MD] | 400 | 193 | 80 | 66 |
| Clark County [WA] | 400 | 327 | 350 | 312 |
| Essex County [NJ] | 395 | 185 | 90 | 93 |
| Jefferson County [KY] | 365 | 195 | 200 | 127 |
| Guilford County [NC] | 350 | 245 | 100 | 84 |
| Kings County [NY] | 345 | 198 | 110 | 87 |
| Hudson County [NJ] | 335 | 205 | 190 | 125 |
| Washtenaw County [MI] | 325 | 240 | 175 | 140 |
| Oklahoma County [OK] | 325 | 279 | 70 | 95 |
| Bernalillo County [NM] | 265 | 125 | 65 | 41 |
| DuPage County [IL] | 260 | 168 | 80 | 59 |
| Westchester County [NY] | 260 | 191 | 50 | 69 |
| Orange County [FL] | 255 | 137 | 125 | 82 |
| El Paso County [CO] | 245 | 172 | 65 | 70 |
| Duval County [FL] | 235 | 166 | 110 | 94 |
| San Joaquin County [CA] | 230 | 209 | 105 | 121 |
| Solano County [CA] | 225 | 146 | (D) | (D) |
| Henrico County [VA] | 225 | 139 | 105 | 89 |
| Pierce County [WA] | 220 | 155 | 65 | 82 |
| Somerset County [NJ] | 205 | 198 | 15 | 19 |
| Fresno County [CA] | 200 | 151 | (D) | (D) |
| Kane County [IL] | 200 | 140 | (D) | (D) |
| Broward County [FL] | 190 | 154 | 60 | 64 |
| Polk County [IA] | 190 | 113 | 90 | 82 |
| Norfolk County [MA] | 190 | 140 | 55 | 90 |
| Virginia Beach city [VA] | 190 | 140 | 85 | 104 |
| Milwaukee County [WI] | 185 | 94 | (D) | (D) |
| Providence County [RI] | 180 | 186 | 155 | 167 |
| Bexar County [TX] | 175 | 143 | 90 | 82 |
| Kern County [CA] | 165 | 114 | 45 | 48 |
| Middlesex County [NJ] | 165 | 124 | 40 | 43 |
| Nassau County [NY] | 155 | 116 | (B) | - |
| New Haven County [CT] | 150 | 101 | (B) | - |
| New Castle County [DE] | 150 | 106 | 65 | 67 |
| Hartford County [CT] | 140 | 112 | 95 | 70 |
| Mercer County [NJ] | 140 | 109 | (D) | (D) |
| Cuyahoga County [OH] | 140 | 111 | 35 | 34 |
| Ventura County [CA] | 125 | 100 | (D) | (D) |
| Onondaga County [NY] | 125 | 134 | (D) | (D) |
| Salt Lake County [UT] | 125 | 123 | 65 | 61 |
| Washington County [OR] | 120 | 102 | 75 | 66 |
| Dane County [WI] | 120 | 95 | 35 | 35 |
| Hampden County [MA] | 115 | 114 | (D) | (D) |
| Worcester County [MA] | 110 | 112 | (D) | (D) |
| Oakland County [MI] | 110 | 74 | (D) | (D) |
| Washoe County [NV] | 110 | 91 | 55 | 53 |
| Union County [NJ] | 105 | 116 | (D) | (D) |
| Jefferson Parish [LA] | 100 | 91 | 70 | 87 |
| Camden County [NJ] | 95 | 107 | (D) | (D) |
| Wayne County [MI] | 90 | 69 | 40 | 46 |
| San Mateo County [CA] | 75 | 59 | 45 | 42 |
| Allegheny County [PA] | 75 | 67 | (D) | (D) |
| Anne Arundel County [MD] | 70 | 70 | (D) | (D) |
| Pinellas County [FL] | 65 | 88 | (B) | - |
| Stanislaus County [CA] | 50 | 49 | (D) | (D) |
| Yolo County [CA] | 50 | 42 | (B) | - |
| Honolulu County [HI] | 50 | 46 | 25 | 37 |
| Essex County [MA] | 45 | 45 | 15 | 21 |
| Albany County [NY] | 40 | 53 | (D) | (D) |
| Plymouth County [MA] | 35 | 46 | (D) | (D) |
| Bristol County [MA] | 30 | 32 | (D) | (D) |
| Chester County [PA] | 30 | 32 | (D) | (D) |
| Monterey County [CA] | 20 | 31 | 20 | 31 |
| Santa Barbara County [CA] | (D) | (D) | (B) | - |
| Fairfield County [CT] | (D) | (D) | (D) | (D) |
| Palm Beach County [FL] | (D) | (D) | (D) | (D) |
| Lake County [IL] | (D) | (D) | (B) | - |
| Will County [IL] | (D) | (D) | (D) | (D) |
| Macomb County [MI] | (D) | (D) | (B) | - |
| Hillsborough County [NH] | (D) | (D) | (D) | (D) |
| Atlantic County [NJ] | (D) | (D) | (B) | - |
| Bergen County [NJ] | (D) | (D) | (B) | - |
| Burlington County [NJ] | (D) | (D) | (D) | (D) |
| Monmouth County [NJ] | (D) | (D) | (B) | - |
| Richmond County [NY] | (D) | (D) | (B) | - |
| Suffolk County [NY] | (D) | (D) | (B) | - |
| Montgomery County [PA] | (D) | (D) | (D) | (D) |
| City / Metropolitan area / CBSA | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| Washington-Arlington-Alexandria [DC-VA-MD-WV] | 43,125 | 2,393 | 16,215 | 1,398 |
| Seattle-Tacoma-Bellevue [WA] | 14,575 | 1,635 | 6,755 | 824 |
| Atlanta-Sandy Springs-Roswell [GA] | 11,955 | 1,743 | 5,460 | 1,146 |
| Dallas-Fort Worth-Arlington [TX] | 9,560 | 1,218 | 3,525 | 654 |
| Los Angeles-Long Beach-Anaheim [CA] | 8,810 | 1,035 | 3,140 | 531 |
| Minneapolis-St. Paul-Bloomington [MN-WI] | 8,725 | 964 | 3,985 | 472 |
| Denver-Aurora-Lakewood [CO] | 8,010 | 1,065 | 3,925 | 689 |
| Las Vegas-Henderson-Paradise [NV] | 6,965 | 1,045 | 3,865 | 661 |
| San Francisco-Oakland-Hayward [CA] | 5,335 | 914 | 2,155 | 372 |
| New York-Newark-Jersey City [NY] | 5,155 | 858 | 1,560 | 453 |
| Boston-Cambridge-Newton [MA-NH] | 4,610 | 761 | 1,835 | 434 |
| Houston-The Woodlands-Sugar Land [TX] | 4,545 | 1,167 | 2,235 | 787 |
| Chicago-Naperville-Elgin [IL-IN] | 3,795 | 737 | 1,455 | 468 |
| San Jose-Sunnyvale-Santa Clara [CA] | 3,770 | 832 | 1,640 | 434 |
| San Diego-Carlsbad [CA] | 3,560 | 892 | 1,765 | 594 |
| Philadelphia-Camden-Wilmington [PA-NJ-DE-MD] | 3,080 | 558 | 960 | 305 |
| Columbus [OH] | 2,600 | 614 | 1,080 | 266 |
| Baltimore-Columbia-Towson [MD] | 2,285 | 563 | 1,075 | 422 |
| Nashville-Davidson-Murfreesboro-Franklin [TN] | 2,090 | 633 | 1,035 | 451 |
| Riverside-San Bernardino-Ontario [CA] | 1,950 | 990 | 360 | 194 |
| Portland-Vancouver-Hillsboro [OR-WA] | 1,900 | 462 | 990 | 359 |
| Phoenix-Mesa-Scottsdale [AZ] | 1,660 | 525 | 900 | 294 |
| Cincinnati [OH-KY-IN] | 1,645 | 507 | 525 | 199 |
| Indianapolis-Carmel-Anderson [IN] | 1,640 | 675 | 480 | 202 |
| Charlotte-Concord-Gastonia [NC-SC] | 1,465 | 464 | 495 | 184 |
| Sacramento-Roseville-Arden-Arcade [CA] | 1,405 | 738 | 680 | 314 |
| Kansas City [MO-KS] | 1,300 | 453 | 615 | 295 |
| Santa Rosa [CA] | 1,195 | 419 | 300 | 147 |
| St. Louis [MO-IL] | 1,130 | 392 | 390 | 197 |
| Richmond [VA] | 935 | 347 | 275 | 137 |
| Raleigh [NC] | 890 | 357 | 340 | 225 |
| Memphis [TN-MS-AR] | 875 | 512 | 435 | 335 |
| Virginia Beach-Norfolk-Newport News [VA-NC] | 770 | 303 | 330 | 185 |
| Tampa-St. Petersburg-Clearwater [FL] | 760 | 328 | 125 | 133 |
| Austin-Round Rock [TX] | 645 | 267 | 440 | 203 |
| Miami-Fort Lauderdale-West Palm Beach [FL] | 645 | 346 | 150 | 90 |
| Rochester [NY] | 645 | 321 | 395 | 215 |
| Lancaster [PA] | 520 | 331 | 425 | 307 |
| Tucson [AZ] | 490 | 268 | 275 | 232 |
| Buffalo-Cheektowaga-Niagara Falls [NY] | 460 | 247 | 245 | 161 |
| Durham-Chapel Hill [NC] | 395 | 199 | 115 | 98 |
| Greensboro-High Point [NC] | 380 | 248 | 130 | 102 |
| Louisville Jefferson County [KY] | 370 | 195 | 205 | 127 |
| Oklahoma City [OK] | 360 | 284 | 95 | 101 |
| Ann Arbor [MI] | 325 | 240 | 175 | 140 |
| Albuquerque [NM] | 320 | 144 | 65 | 41 |
| Harrisburg-Carlisle [PA] | 305 | 179 | 130 | 108 |
| Jacksonville [FL] | 295 | 184 | 170 | 138 |
| New Orleans-Metairie [LA] | 295 | 179 | 115 | 99 |
| Spokane-Spokane Valley [WA] | 280 | 179 | 200 | 151 |
| Orlando-Kissimmee-Sanford [FL] | 255 | 137 | 125 | 82 |
| Colorado Springs [CO] | 245 | 172 | 65 | 70 |
| Providence-Warwick [RI-MA] | 240 | 189 | 175 | 168 |
| Stockton-Lodi [CA] | 230 | 209 | 105 | 121 |
| Vallejo-Fairfield [CA] | 225 | 146 | (D) | (D) |
| Lansing-East Lansing [MI] | 220 | 118 | 90 | 69 |
| Portland-South Portland [ME] | 215 | 187 | 90 | 82 |
| Cleveland-Elyria [OH] | 205 | 129 | 35 | 34 |
| Detroit-Warren-Dearborn [MI] | 205 | 102 | 50 | 49 |
| Grand Rapids-Wyoming [MI] | 205 | 113 | 95 | 64 |
| Fresno [CA] | 200 | 151 | (D) | (D) |
| Dayton [OH] | 190 | 91 | 120 | 72 |
| Des Moines-West Des Moines [IA] | 190 | 113 | 90 | 82 |
| Allentown-Bethlehem-Easton [PA-NJ] | 185 | 95 | 55 | 51 |
| Milwaukee-Waukesha-West Allis [WI] | 185 | 94 | (D) | (D) |
| Omaha-Council Bluffs [NE-IA] | 185 | 145 | 115 | 116 |
| San Antonio-New Braunfels [TX] | 175 | 143 | 90 | 82 |
| Worcester [MA-CT] | 170 | 134 | 90 | 97 |
| Bakersfield [CA] | 165 | 114 | 45 | 48 |
| Hartford-West Hartford-East Hartford [CT] | 155 | 125 | 95 | 70 |
| New Haven-Milford [CT] | 150 | 101 | (B) | - |
| Springfield [MA] | 145 | 120 | (D) | (D) |
| Syracuse [NY] | 145 | 137 | 30 | 30 |
| Trenton [NJ] | 140 | 109 | (D) | (D) |
| Oxnard-Thousand Oaks-Ventura [CA] | 125 | 100 | (D) | (D) |
| Salt Lake City [UT] | 125 | 123 | 65 | 61 |
| Madison [WI] | 120 | 95 | 35 | 35 |
| Reno [NV] | 110 | 91 | 55 | 53 |
| Pittsburgh [PA] | 100 | 74 | 25 | 28 |
| Tulsa [OK] | 100 | 76 | 75 | 81 |
| Albany-Schenectady-Troy [NY] | 50 | 55 | (D) | (D) |
| Modesto [CA] | 50 | 49 | (D) | (D) |
| Urban Honolulu [HI] | 50 | 46 | 25 | 37 |
| Salinas [CA] | 20 | 31 | 20 | 31 |
| New York-Newark-Jersey City [NY-NJ-PA] | 15 | 38 | 15 | 38 |
| Akron [OH] | (D) | (D) | (D) | (D) |
| Anchorage [AK] | (D) | (D) | (D) | (D) |
| Atlantic City-Hammonton [NJ] | (D) | (D) | (B) | - |
| Bridgeport-Stamford-Norwalk [CT] | (D) | (D) | (D) | (D) |
| Manchester-Nashua [NH] | (D) | (D) | (D) | (D) |
| Santa Maria-Santa Barbara [CA] | (D) | (D) | (B) | - |