| Country | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| United States | 212,747 | 4,707 | 34,912 | 1,591 |
| State | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| New York | 66,835 | 2,700 | 13,320 | 1,116 |
| California | 41,311 | 2,225 | 7,193 | 784 |
| Florida | 20,002 | 1,726 | 4,099 | 668 |
| New Jersey | 15,800 | 1,088 | 1,773 | 386 |
| Massachusetts | 7,348 | 799 | 805 | 201 |
| Illinois | 6,666 | 886 | 880 | 284 |
| Pennsylvania | 6,272 | 700 | 820 | 231 |
| Maryland | 6,092 | 704 | 699 | 198 |
| Texas | 5,633 | 930 | 873 | 245 |
| Ohio | 2,838 | 479 | 351 | 152 |
| Georgia | 2,794 | 665 | 97 | 63 |
| Connecticut | 2,762 | 582 | 343 | 120 |
| Arizona | 2,705 | 661 | 386 | 194 |
| Michigan | 2,629 | 414 | 454 | 160 |
| Nevada | 2,565 | 583 | 427 | 151 |
| Washington | 2,336 | 534 | 236 | 106 |
| Colorado | 1,650 | 428 | 216 | 111 |
| North Carolina | 1,583 | 379 | 127 | 70 |
| Virginia | 1,353 | 317 | 221 | 97 |
| Indiana | 1,231 | 373 | 244 | 205 |
| Missouri | 1,203 | 282 | 110 | 77 |
| Minnesota | 1,119 | 264 | 113 | 56 |
| Oregon | 1,112 | 259 | 188 | 137 |
| Wisconsin | 1,077 | 305 | 172 | 156 |
| Tennessee | 1,042 | 263 | 121 | 90 |
| South Carolina | 697 | 369 | 158 | 138 |
| District of Columbia | 597 | 223 | 69 | 54 |
| New Mexico | 523 | 240 | 24 | 22 |
| Oklahoma | 489 | 181 | 13 | 17 |
| Kansas | 439 | 201 | 50 | 47 |
| New Hampshire | 438 | 264 | 3 | 5 |
| Alabama | 410 | 184 | 8 | 15 |
| Rhode Island | 390 | 163 | (B) | - |
| Louisiana | 364 | 168 | 69 | 70 |
| Kentucky | 347 | 158 | 51 | 54 |
| Hawaii | 290 | 181 | 44 | 52 |
| Iowa | 268 | 136 | (B) | - |
| Alaska | 241 | 136 | 55 | 61 |
| Utah | 241 | 149 | 8 | 13 |
| Montana | 176 | 119 | (B) | - |
| West Virginia | 158 | 123 | 17 | 25 |
| Nebraska | 154 | 89 | 13 | 14 |
| Maine | 146 | 82 | 9 | 14 |
| Vermont | 125 | 68 | 29 | 47 |
| Delaware | 122 | 71 | (B) | - |
| Puerto Rico | 90 | 117 | (B) | - |
| Mississippi | 39 | 35 | (B) | - |
| North Dakota | 38 | 37 | 7 | 10 |
| Wyoming | 29 | 38 | 6 | 8 |
| South Dakota | 27 | 34 | (B) | - |
| Arkansas | 25 | 29 | 11 | 19 |
| Idaho | 16 | 24 | (B) | - |
| County | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| Kings County [NY] | 25,212 | 1,846 | 7,205 | 966 |
| Los Angeles County [CA] | 24,845 | 1,975 | 4,889 | 746 |
| New York County [NY] | 10,571 | 1,124 | 840 | 206 |
| Nassau County [NY] | 8,917 | 976 | 1,156 | 250 |
| Queens County [NY] | 8,476 | 1,167 | 1,613 | 371 |
| Broward County [FL] | 7,226 | 1,259 | 1,532 | 451 |
| Miami-Dade County [FL] | 5,895 | 1,060 | 1,095 | 385 |
| Bergen County [NJ] | 5,093 | 756 | 544 | 158 |
| Cook County [IL] | 4,843 | 777 | 618 | 253 |
| Santa Clara County [CA] | 3,742 | 749 | 646 | 253 |
| Rockland County [NY] | 3,170 | 657 | 812 | 197 |
| Westchester County [NY] | 3,052 | 579 | 343 | 126 |
| Middlesex County [MA] | 2,951 | 574 | 327 | 123 |
| Montgomery County [MD] | 2,638 | 443 | 302 | 112 |
| Clark County [NV] | 2,472 | 573 | 395 | 147 |
| Philadelphia County [PA] | 2,332 | 540 | 358 | 147 |
| Ocean County [NJ] | 2,299 | 456 | 208 | 124 |
| Palm Beach County [FL] | 2,268 | 448 | 582 | 226 |
| Orange County [CA] | 2,171 | 577 | 167 | 108 |
| Maricopa County [AZ] | 1,852 | 625 | 292 | 187 |
| Norfolk County [MA] | 1,761 | 311 | 297 | 126 |
| San Diego County [CA] | 1,671 | 389 | 410 | 151 |
| Harris County [TX] | 1,636 | 479 | 273 | 139 |
| Oakland County [MI] | 1,610 | 342 | 269 | 103 |
| King County [WA] | 1,609 | 418 | 188 | 103 |
| Middlesex County [NJ] | 1,582 | 376 | 266 | 175 |
| Montgomery County [PA] | 1,328 | 299 | 129 | 105 |
| Bronx County [NY] | 1,326 | 355 | 158 | 100 |
| Cuyahoga County [OH] | 1,311 | 405 | 236 | 131 |
| Baltimore County [MD] | 1,275 | 402 | 249 | 144 |
| Alameda County [CA] | 1,253 | 388 | 195 | 117 |
| San Francisco County [CA] | 1,229 | 271 | 157 | 90 |
| Collin County [TX] | 1,185 | 783 | 137 | 101 |
| Suffolk County [NY] | 1,170 | 228 | 183 | 88 |
| Monmouth County [NJ] | 1,152 | 282 | 134 | 86 |
| Essex County [NJ] | 1,127 | 294 | 141 | 84 |
| Baltimore city [MD] | 1,089 | 360 | 81 | 57 |
| Fulton County [GA] | 1,043 | 417 | 26 | 42 |
| Fairfield County [CT] | 996 | 403 | 153 | 86 |
| Suffolk County [MA] | 987 | 261 | 49 | 38 |
| New Haven County [CT] | 906 | 296 | 111 | 71 |
| Contra Costa County [CA] | 890 | 472 | 91 | 64 |
| Richmond County [NY] | 834 | 308 | 128 | 99 |
| Lake County [IL] | 832 | 270 | 88 | 56 |
| Allegheny County [PA] | 784 | 210 | 94 | 65 |
| Union County [NJ] | 748 | 265 | 158 | 189 |
| Orange County [NY] | 742 | 281 | 342 | 190 |
| St. Louis County [MO] | 690 | 220 | 76 | 67 |
| San Mateo County [CA] | 686 | 249 | 45 | 48 |
| Pima County [AZ] | 682 | 171 | 49 | 36 |
| Travis County [TX] | 676 | 320 | 8 | 13 |
| Passaic County [NJ] | 673 | 276 | 21 | 30 |
| Ventura County [CA] | 650 | 244 | 102 | 63 |
| Riverside County [CA] | 647 | 340 | 169 | 241 |
| Hennepin County [MN] | 642 | 183 | 84 | 52 |
| Hudson County [NJ] | 627 | 217 | 93 | 77 |
| Hartford County [CT] | 609 | 233 | 51 | 37 |
| Hillsborough County [FL] | 599 | 419 | 112 | 76 |
| District of Columbia [DC] | 597 | 223 | 69 | 54 |
| Mercer County [NJ] | 592 | 268 | 71 | 69 |
| Monroe County [NY] | 576 | 284 | 116 | 88 |
| Milwaukee County [WI] | 535 | 222 | 26 | 27 |
| Camden County [NJ] | 532 | 282 | 50 | 41 |
| DeKalb County [GA] | 513 | 234 | 11 | 17 |
| Dallas County [TX] | 475 | 235 | 155 | 150 |
| Morris County [NJ] | 474 | 164 | 42 | 42 |
| Sacramento County [CA] | 458 | 206 | 15 | 18 |
| Tarrant County [TX] | 451 | 235 | 89 | 80 |
| Multnomah County [OR] | 448 | 161 | 27 | 32 |
| Essex County [MA] | 444 | 241 | 54 | 57 |
| Bexar County [TX] | 442 | 182 | 31 | 39 |
| Denver County [CO] | 425 | 184 | 68 | 71 |
| Bristol County [MA] | 425 | 297 | 11 | 17 |
| Arapahoe County [CO] | 417 | 216 | 43 | 45 |
| Cobb County [GA] | 397 | 232 | 39 | 32 |
| Bucks County [PA] | 386 | 169 | 49 | 36 |
| Santa Barbara County [CA] | 383 | 161 | 7 | 11 |
| Orange County [FL] | 356 | 174 | 32 | 25 |
| Worcester County [MA] | 353 | 164 | 22 | 27 |
| Wake County [NC] | 352 | 157 | 44 | 46 |
| Pinellas County [FL] | 343 | 160 | 47 | 42 |
| Washington County [OR] | 332 | 195 | 69 | 86 |
| Franklin County [OH] | 318 | 121 | 14 | 20 |
| Will County [IL] | 298 | 203 | 44 | 37 |
| Albany County [NY] | 296 | 161 | 61 | 66 |
| Erie County [NY] | 283 | 140 | 14 | 22 |
| Providence County [RI] | 261 | 110 | (B) | - |
| San Bernardino County [CA] | 258 | 119 | (B) | - |
| Johnson County [KS] | 252 | 154 | 29 | 37 |
| Lee County [FL] | 244 | 158 | 48 | 76 |
| Anne Arundel County [MD] | 242 | 147 | 37 | 59 |
| Somerset County [NJ] | 238 | 135 | (B) | - |
| Honolulu County [HI] | 235 | 161 | 44 | 52 |
| Ramsey County [MN] | 235 | 157 | 9 | 14 |
| Fairfax County [VA] | 232 | 149 | 34 | 33 |
| Shelby County [TN] | 227 | 164 | 36 | 60 |
| Mecklenburg County [NC] | 223 | 179 | 11 | 18 |
| Hamilton County [OH] | 219 | 116 | 26 | 47 |
| Prince George s County [MD] | 217 | 94 | 8 | 13 |
| Davidson County [TN] | 211 | 132 | 31 | 41 |
| Washtenaw County [MI] | 208 | 98 | 29 | 48 |
| Marion County [IN] | 207 | 119 | 16 | 20 |
| Gwinnett County [GA] | 200 | 153 | 16 | 26 |
| Howard County [MD] | 185 | 134 | (B) | - |
| Yolo County [CA] | 184 | 95 | 23 | 24 |
| Salt Lake County [UT] | 180 | 133 | 1 | 3 |
| Chester County [PA] | 168 | 112 | 11 | 17 |
| DuPage County [IL] | 166 | 109 | 55 | 51 |
| Clark County [WA] | 163 | 142 | 33 | 35 |
| Wayne County [MI] | 162 | 108 | 24 | 23 |
| Burlington County [NJ] | 161 | 94 | 22 | 23 |
| Hillsborough County [NH] | 153 | 128 | (B) | - |
| Onondaga County [NY] | 151 | 76 | 48 | 43 |
| Bernalillo County [NM] | 146 | 68 | 15 | 18 |
| Dane County [WI] | 146 | 91 | 27 | 30 |
| Plymouth County [MA] | 138 | 87 | (B) | - |
| Guilford County [NC] | 136 | 106 | (B) | - |
| Monterey County [CA] | 134 | 99 | 54 | 46 |
| Duval County [FL] | 134 | 78 | 42 | 48 |
| Delaware County [PA] | 116 | 74 | 13 | 20 |
| Sonoma County [CA] | 115 | 58 | (B) | - |
| Virginia Beach city [VA] | 114 | 73 | 10 | 16 |
| New Castle County [DE] | 111 | 71 | (B) | - |
| Atlantic County [NJ] | 110 | 93 | 13 | 19 |
| El Paso County [CO] | 108 | 124 | (B) | - |
| Kern County [CA] | 102 | 99 | 13 | 22 |
| Oklahoma County [OK] | 102 | 74 | (B) | - |
| Loudoun County [VA] | 102 | 126 | 40 | 47 |
| Fort Bend County [TX] | 94 | 72 | 39 | 51 |
| Hampden County [MA] | 93 | 47 | 16 | 26 |
| Polk County [IA] | 91 | 107 | (B) | - |
| Fresno County [CA] | 84 | 63 | 21 | 24 |
| Jefferson Parish [LA] | 84 | 61 | 9 | 13 |
| Anchorage Municipality [AK] | 80 | 89 | (B) | - |
| Washoe County [NV] | 79 | 57 | 32 | 48 |
| Placer County [CA] | 77 | 62 | 15 | 15 |
| Jefferson County [KY] | 75 | 64 | 51 | 54 |
| Pierce County [WA] | 69 | 54 | 1 | 3 |
| San Joaquin County [CA] | 60 | 49 | 12 | 20 |
| Dakota County [MN] | 60 | 66 | 11 | 17 |
| Lancaster County [PA] | 57 | 48 | (B) | - |
| Arlington County [VA] | 55 | 60 | (B) | - |
| Stanislaus County [CA] | 47 | 71 | (B) | - |
| Prince William County [VA] | 41 | 33 | (B) | - |
| Hawaii County [HI] | 32 | 38 | (B) | - |
| Snohomish County [WA] | 29 | 28 | (B) | - |
| Maui County [HI] | 23 | 33 | (B) | - |
| Solano County [CA] | 19 | 18 | (B) | - |
| Kane County [IL] | 11 | 17 | (B) | - |
| Collier County [FL] | 10 | 15 | 10 | 15 |
| Macomb County [MI] | 10 | 14 | (B) | - |
| San Juan County [NM] | 10 | 16 | (B) | - |
| Denton County [TX] | 6 | 12 | (B) | - |
| Henrico County [VA] | 6 | 13 | 6 | 13 |
| Navajo County [AZ] | 1 | 4 | (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] | 77,875 | 2,699 | 14,403 | 1,205 |
| Los Angeles-Long Beach-Anaheim [CA] | 27,016 | 1,941 | 5,056 | 750 |
| Miami-Fort Lauderdale-West Palm Beach [FL] | 15,389 | 1,557 | 3,209 | 633 |
| Boston-Cambridge-Newton [MA-NH] | 6,538 | 798 | 730 | 197 |
| Chicago-Naperville-Elgin [IL-IN] | 6,310 | 823 | 901 | 284 |
| Philadelphia-Camden-Wilmington [PA-NJ-DE-MD] | 5,329 | 770 | 632 | 194 |
| San Francisco-Oakland-Hayward [CA] | 4,560 | 775 | 542 | 183 |
| Washington-Arlington-Alexandria [DC-VA-MD-WV] | 4,168 | 610 | 480 | 153 |
| San Jose-Sunnyvale-Santa Clara [CA] | 3,798 | 744 | 646 | 253 |
| Baltimore-Columbia-Towson [MD] | 2,877 | 595 | 379 | 164 |
| Las Vegas-Henderson-Paradise [NV] | 2,472 | 573 | 395 | 147 |
| Atlanta-Sandy Springs-Roswell [GA] | 2,435 | 619 | 97 | 63 |
| Dallas-Fort Worth-Arlington [TX] | 2,150 | 725 | 395 | 185 |
| Phoenix-Mesa-Scottsdale [AZ] | 1,892 | 622 | 292 | 187 |
| Detroit-Warren-Dearborn [MI] | 1,788 | 344 | 299 | 107 |
| Houston-The Woodlands-Sugar Land [TX] | 1,781 | 486 | 312 | 145 |
| Seattle-Tacoma-Bellevue [WA] | 1,707 | 423 | 189 | 104 |
| San Diego-Carlsbad [CA] | 1,671 | 389 | 410 | 151 |
| Cleveland-Elyria [OH] | 1,490 | 402 | 259 | 131 |
| Tampa-St. Petersburg-Clearwater [FL] | 1,142 | 474 | 196 | 85 |
| Minneapolis-St. Paul-Bloomington [MN-WI] | 1,046 | 255 | 113 | 56 |
| Denver-Aurora-Lakewood [CO] | 1,024 | 317 | 146 | 92 |
| Bridgeport-Stamford-Norwalk [CT] | 996 | 403 | 153 | 86 |
| Portland-Vancouver-Hillsboro [OR-WA] | 973 | 307 | 145 | 95 |
| Sacramento-Roseville-Arden-Arcade [CA] | 909 | 365 | 65 | 38 |
| New Haven-Milford [CT] | 906 | 296 | 111 | 71 |
| Riverside-San Bernardino-Ontario [CA] | 905 | 349 | 169 | 241 |
| Providence-Warwick [RI-MA] | 815 | 345 | 11 | 17 |
| St. Louis [MO-IL] | 808 | 250 | 83 | 70 |
| Pittsburgh [PA] | 801 | 209 | 100 | 65 |
| Hartford-West Hartford-East Hartford [CT] | 720 | 267 | 51 | 37 |
| Austin-Round Rock [TX] | 701 | 321 | 18 | 22 |
| Orlando-Kissimmee-Sanford [FL] | 697 | 215 | 82 | 58 |
| Tucson [AZ] | 682 | 171 | 49 | 36 |
| Oxnard-Thousand Oaks-Ventura [CA] | 650 | 244 | 102 | 63 |
| Rochester [NY] | 633 | 284 | 121 | 88 |
| Milwaukee-Waukesha-West Allis [WI] | 622 | 244 | 26 | 27 |
| Albany-Schenectady-Troy [NY] | 613 | 214 | 105 | 76 |
| Indianapolis-Carmel-Anderson [IN] | 593 | 347 | 146 | 179 |
| Trenton [NJ] | 592 | 268 | 71 | 69 |
| San Antonio-New Braunfels [TX] | 453 | 183 | 42 | 43 |
| Cincinnati [OH-KY-IN] | 431 | 168 | 41 | 52 |
| Nashville-Davidson-Murfreesboro-Franklin [TN] | 409 | 223 | 31 | 41 |
| Charlotte-Concord-Gastonia [NC-SC] | 386 | 223 | 40 | 39 |
| Santa Maria-Santa Barbara [CA] | 383 | 161 | 7 | 11 |
| Columbus [OH] | 380 | 134 | 14 | 20 |
| Raleigh [NC] | 368 | 166 | 44 | 46 |
| Kansas City [MO-KS] | 357 | 169 | 39 | 39 |
| Worcester [MA-CT] | 353 | 164 | 22 | 27 |
| Buffalo-Cheektowaga-Niagara Falls [NY] | 329 | 145 | 14 | 22 |
| Allentown-Bethlehem-Easton [PA-NJ] | 325 | 107 | 22 | 23 |
| Virginia Beach-Norfolk-Newport News [VA-NC] | 294 | 122 | 43 | 42 |
| Memphis [TN-MS-AR] | 271 | 172 | 36 | 60 |
| Cape Coral-Fort Myers [FL] | 244 | 158 | 48 | 76 |
| Jacksonville [FL] | 236 | 115 | 59 | 60 |
| Urban Honolulu [HI] | 235 | 161 | 44 | 52 |
| Albuquerque [NM] | 230 | 122 | 15 | 18 |
| Deltona-Daytona Beach-Ormond Beach [FL] | 222 | 178 | 217 | 178 |
| New Orleans-Metairie [LA] | 209 | 102 | 56 | 66 |
| Ann Arbor [MI] | 208 | 98 | 29 | 48 |
| Oklahoma City [OK] | 208 | 111 | (B) | - |
| New York-Newark-Jersey City [NY-NJ-PA] | 205 | 131 | 20 | 22 |
| Durham-Chapel Hill [NC] | 194 | 96 | 22 | 33 |
| Richmond [VA] | 186 | 129 | 50 | 46 |
| Salt Lake City [UT] | 180 | 133 | 1 | 3 |
| Syracuse [NY] | 175 | 87 | 52 | 44 |
| Dayton [OH] | 165 | 94 | 12 | 20 |
| Tulsa [OK] | 162 | 101 | 9 | 15 |
| Manchester-Nashua [NH] | 153 | 128 | (B) | - |
| Madison [WI] | 149 | 90 | 27 | 30 |
| Greensboro-High Point [NC] | 136 | 106 | (B) | - |
| Salinas [CA] | 134 | 99 | 54 | 46 |
| Lansing-East Lansing [MI] | 132 | 107 | 33 | 33 |
| Springfield [MA] | 132 | 61 | 25 | 29 |
| Portland-South Portland [ME] | 131 | 82 | 9 | 14 |
| Akron [OH] | 123 | 66 | 1 | 2 |
| Harrisburg-Carlisle [PA] | 116 | 73 | 10 | 17 |
| Santa Rosa [CA] | 115 | 58 | (B) | - |
| Anchorage [AK] | 113 | 93 | (B) | - |
| Atlantic City-Hammonton [NJ] | 110 | 93 | 13 | 19 |
| Colorado Springs [CO] | 108 | 124 | (B) | - |
| Bakersfield [CA] | 102 | 99 | 13 | 22 |
| Spokane-Spokane Valley [WA] | 96 | 68 | 10 | 18 |
| Des Moines-West Des Moines [IA] | 91 | 107 | (B) | - |
| Louisville Jefferson County [KY] | 89 | 66 | 51 | 54 |
| Fresno [CA] | 84 | 63 | 21 | 24 |
| Grand Rapids-Wyoming [MI] | 83 | 70 | 19 | 19 |
| Omaha-Council Bluffs [NE-IA] | 79 | 73 | (B) | - |
| Reno [NV] | 79 | 57 | 32 | 48 |
| Baton Rouge [LA] | 71 | 81 | (B) | - |
| Stockton-Lodi [CA] | 60 | 49 | 12 | 20 |
| Lancaster [PA] | 57 | 48 | (B) | - |
| Modesto [CA] | 47 | 71 | (B) | - |
| Hilo [HI] | 32 | 38 | (B) | - |
| Kahului-Wailuku-Lahaina [HI] | 23 | 33 | (B) | - |
| Vallejo-Fairfield [CA] | 19 | 18 | (B) | - |
| Lafayette [LA] | 13 | 21 | 13 | 21 |
| Farmington [NM] | 10 | 16 | (B) | - |
| Naples-Immokalee-Marco Island [FL] | 10 | 15 | 10 | 15 |
| Show Low [AZ] | 1 | 4 | (B) | - |