| Country | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| United States | 197,505 | 3,118 | 29,548 | 1,198 |
| State | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| New Mexico | 32,951 | 1,361 | 4,217 | 510 |
| Alaska | 31,735 | 971 | 8,087 | 459 |
| Arizona | 26,869 | 1,372 | 3,808 | 459 |
| Oklahoma | 14,469 | 877 | 1,820 | 250 |
| South Dakota | 11,605 | 765 | 856 | 207 |
| Montana | 8,133 | 610 | 413 | 181 |
| Minnesota | 6,028 | 581 | 513 | 129 |
| California | 5,989 | 613 | 880 | 210 |
| New York | 4,456 | 586 | 950 | 223 |
| Mississippi | 4,448 | 490 | 903 | 234 |
| Wisconsin | 4,359 | 470 | 561 | 265 |
| Washington | 3,832 | 565 | 321 | 102 |
| Michigan | 3,454 | 417 | 408 | 92 |
| Texas | 2,630 | 416 | 507 | 150 |
| Colorado | 2,244 | 341 | 413 | 172 |
| Oregon | 2,151 | 392 | 184 | 103 |
| Florida | 1,990 | 354 | 359 | 125 |
| Idaho | 1,967 | 280 | 238 | 134 |
| Nevada | 1,906 | 320 | 222 | 75 |
| Utah | 1,797 | 261 | 115 | 61 |
| North Dakota | 1,761 | 254 | 187 | 86 |
| North Carolina | 1,753 | 386 | 355 | 144 |
| Nebraska | 1,526 | 292 | 199 | 124 |
| Wyoming | 1,480 | 263 | 35 | 20 |
| Maryland | 1,236 | 485 | 265 | 165 |
| Iowa | 1,234 | 221 | 254 | 125 |
| Missouri | 1,219 | 297 | 50 | 37 |
| Kansas | 1,093 | 211 | 76 | 55 |
| Ohio | 1,069 | 272 | 161 | 97 |
| Georgia | 1,049 | 319 | 85 | 69 |
| Virginia | 1,041 | 282 | 266 | 215 |
| Maine | 1,016 | 147 | 98 | 48 |
| Pennsylvania | 966 | 200 | 107 | 67 |
| Arkansas | 888 | 292 | 311 | 191 |
| New Jersey | 814 | 337 | 220 | 143 |
| Tennessee | 804 | 211 | 69 | 44 |
| Illinois | 799 | 192 | 123 | 98 |
| Louisiana | 743 | 275 | 88 | 56 |
| Indiana | 731 | 201 | 94 | 79 |
| Alabama | 650 | 195 | 61 | 52 |
| Massachusetts | 612 | 226 | 114 | 61 |
| Kentucky | 510 | 146 | 110 | 62 |
| Connecticut | 260 | 109 | 71 | 44 |
| Hawaii | 220 | 120 | 110 | 93 |
| Rhode Island | 190 | 142 | 22 | 35 |
| West Virginia | 185 | 107 | 87 | 83 |
| New Hampshire | 170 | 122 | 65 | 71 |
| Delaware | 156 | 103 | 32 | 34 |
| South Carolina | 148 | 65 | 23 | 25 |
| District of Columbia | 108 | 77 | (B) | - |
| Vermont | 61 | 53 | 35 | 42 |
| Puerto Rico | 43 | 51 | 20 | 31 |
| County | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| Navajo County [AZ] | 9,790 | 775 | 1,304 | 276 |
| Pima County [AZ] | 4,763 | 516 | 599 | 183 |
| Anchorage Municipality [AK] | 4,144 | 735 | 991 | 303 |
| Bernalillo County [NM] | 3,881 | 619 | 268 | 124 |
| Maricopa County [AZ] | 3,502 | 513 | 414 | 132 |
| Hennepin County [MN] | 974 | 244 | 115 | 84 |
| Oklahoma County [OK] | 926 | 283 | 116 | 48 |
| Los Angeles County [CA] | 687 | 237 | 138 | 71 |
| Montgomery County [MD] | 676 | 471 | 130 | 123 |
| San Juan County [NM] | 603 | 340 | 55 | 48 |
| King County [WA] | 543 | 158 | 41 | 24 |
| Washoe County [NV] | 512 | 140 | 37 | 29 |
| Erie County [NY] | 488 | 214 | 158 | 116 |
| Clark County [NV] | 459 | 239 | 72 | 52 |
| Ramsey County [MN] | 417 | 184 | 4 | 7 |
| San Diego County [CA] | 416 | 176 | 72 | 78 |
| Wayne County [MI] | 387 | 162 | 19 | 22 |
| Kings County [NY] | 382 | 177 | 36 | 40 |
| Bronx County [NY] | 372 | 156 | 113 | 81 |
| Cook County [IL] | 343 | 138 | 43 | 47 |
| Snohomish County [WA] | 317 | 116 | 46 | 70 |
| Salt Lake County [UT] | 315 | 130 | (B) | - |
| Alameda County [CA] | 306 | 140 | 66 | 75 |
| Pierce County [WA] | 299 | 154 | 36 | 34 |
| Santa Clara County [CA] | 294 | 193 | 70 | 102 |
| Kern County [CA] | 292 | 153 | 72 | 75 |
| Multnomah County [OR] | 285 | 191 | 109 | 93 |
| Franklin County [OH] | 282 | 173 | 81 | 71 |
| Broward County [FL] | 271 | 113 | 19 | 18 |
| Essex County [NJ] | 270 | 174 | 93 | 114 |
| Milwaukee County [WI] | 265 | 109 | 70 | 92 |
| Queens County [NY] | 260 | 168 | 117 | 82 |
| San Bernardino County [CA] | 259 | 102 | 45 | 48 |
| San Mateo County [CA] | 251 | 212 | 6 | 11 |
| Riverside County [CA] | 244 | 116 | 26 | 28 |
| Harris County [TX] | 237 | 101 | 45 | 40 |
| Dallas County [TX] | 232 | 144 | 40 | 39 |
| Denver County [CO] | 226 | 123 | 8 | 12 |
| Burlington County [NJ] | 213 | 254 | 69 | 83 |
| Sacramento County [CA] | 212 | 119 | 37 | 48 |
| Arapahoe County [CO] | 212 | 127 | 96 | 102 |
| Mecklenburg County [NC] | 203 | 151 | 82 | 81 |
| Orange County [CA] | 201 | 104 | 15 | 23 |
| Johnson County [KS] | 192 | 109 | 26 | 42 |
| Tarrant County [TX] | 176 | 88 | 18 | 20 |
| Prince George s County [MD] | 172 | 158 | 83 | 103 |
| Macomb County [MI] | 165 | 169 | 16 | 22 |
| Honolulu County [HI] | 161 | 103 | 92 | 91 |
| Marion County [IN] | 153 | 121 | 36 | 53 |
| Gwinnett County [GA] | 152 | 104 | 20 | 32 |
| Middlesex County [MA] | 152 | 117 | 31 | 34 |
| Prince William County [VA] | 147 | 141 | 89 | 135 |
| Travis County [TX] | 139 | 178 | 14 | 22 |
| San Francisco County [CA] | 138 | 135 | (B) | - |
| Cuyahoga County [OH] | 138 | 69 | 7 | 11 |
| Henrico County [VA] | 138 | 162 | 134 | 163 |
| Suffolk County [NY] | 131 | 85 | 30 | 35 |
| Norfolk County [MA] | 129 | 154 | 9 | 14 |
| Baltimore city [MD] | 128 | 85 | 33 | 51 |
| New Castle County [DE] | 127 | 102 | 32 | 34 |
| Monroe County [NY] | 127 | 107 | 48 | 41 |
| Hillsborough County [NH] | 124 | 114 | 58 | 71 |
| Miami-Dade County [FL] | 121 | 99 | 17 | 30 |
| Onondaga County [NY] | 121 | 79 | 48 | 59 |
| Wake County [NC] | 117 | 104 | (B) | - |
| Hillsborough County [FL] | 116 | 104 | 10 | 17 |
| Worcester County [MA] | 113 | 94 | 35 | 38 |
| Nassau County [NY] | 112 | 104 | 58 | 61 |
| Richmond County [NY] | 110 | 91 | 32 | 41 |
| District of Columbia [DC] | 108 | 77 | (B) | - |
| Fresno County [CA] | 107 | 75 | 5 | 9 |
| Hartford County [CT] | 107 | 72 | 24 | 29 |
| Philadelphia County [PA] | 107 | 60 | 3 | 5 |
| Dane County [WI] | 107 | 87 | 18 | 30 |
| Stanislaus County [CA] | 101 | 70 | (B) | - |
| DeKalb County [GA] | 101 | 107 | (B) | - |
| Orange County [FL] | 100 | 82 | 28 | 36 |
| Lancaster County [PA] | 99 | 95 | 21 | 33 |
| San Joaquin County [CA] | 95 | 85 | (B) | - |
| Clark County [WA] | 94 | 63 | (B) | - |
| El Paso County [CO] | 92 | 69 | 23 | 36 |
| New York County [NY] | 92 | 102 | (B) | - |
| Rockland County [NY] | 92 | 84 | 36 | 54 |
| Bexar County [TX] | 92 | 68 | (B) | - |
| Washtenaw County [MI] | 90 | 78 | (B) | - |
| Mercer County [NJ] | 85 | 72 | 13 | 20 |
| Washington County [OR] | 79 | 57 | (B) | - |
| Yolo County [CA] | 77 | 56 | 32 | 32 |
| Shelby County [TN] | 77 | 88 | 11 | 15 |
| Solano County [CA] | 76 | 79 | 14 | 20 |
| Cobb County [GA] | 75 | 88 | (B) | - |
| New Haven County [CT] | 72 | 74 | (B) | - |
| Monterey County [CA] | 71 | 40 | 12 | 19 |
| Polk County [IA] | 71 | 73 | 14 | 26 |
| Duval County [FL] | 70 | 67 | 31 | 43 |
| Guilford County [NC] | 70 | 63 | 12 | 20 |
| Fairfax County [VA] | 70 | 58 | (B) | - |
| Denton County [TX] | 69 | 102 | (B) | - |
| Delaware County [PA] | 68 | 65 | 14 | 25 |
| Virginia Beach city [VA] | 67 | 79 | (B) | - |
| Contra Costa County [CA] | 65 | 52 | (B) | - |
| Baltimore County [MD] | 65 | 69 | 10 | 16 |
| Arlington County [VA] | 62 | 40 | (B) | - |
| Westchester County [NY] | 61 | 49 | 26 | 41 |
| Collin County [TX] | 61 | 56 | (B) | - |
| Davidson County [TN] | 58 | 43 | (B) | - |
| St. Louis County [MO] | 57 | 47 | (B) | - |
| Jefferson County [KY] | 56 | 68 | 1 | 3 |
| Bergen County [NJ] | 56 | 89 | 9 | 15 |
| DuPage County [IL] | 55 | 68 | 42 | 66 |
| Bristol County [MA] | 53 | 61 | 10 | 18 |
| Oakland County [MI] | 51 | 48 | (B) | - |
| Placer County [CA] | 48 | 42 | (B) | - |
| Santa Barbara County [CA] | 47 | 32 | (B) | - |
| Allegheny County [PA] | 47 | 33 | (B) | - |
| Providence County [RI] | 47 | 56 | 5 | 10 |
| Sonoma County [CA] | 43 | 36 | 4 | 6 |
| Hawaii County [HI] | 42 | 60 | 16 | 21 |
| Hampden County [MA] | 38 | 41 | (B) | - |
| Plymouth County [MA] | 37 | 38 | (B) | - |
| Fairfield County [CT] | 35 | 37 | 10 | 17 |
| Orange County [NY] | 35 | 33 | 22 | 29 |
| Hudson County [NJ] | 33 | 36 | 17 | 24 |
| Morris County [NJ] | 33 | 33 | 10 | 16 |
| Ventura County [CA] | 28 | 26 | (B) | - |
| Suffolk County [MA] | 26 | 39 | 6 | 12 |
| Dakota County [MN] | 26 | 26 | (B) | - |
| Passaic County [NJ] | 26 | 42 | (B) | - |
| Fulton County [GA] | 21 | 32 | (B) | - |
| Monmouth County [NJ] | 21 | 24 | (B) | - |
| Lee County [FL] | 20 | 23 | (B) | - |
| Will County [IL] | 18 | 32 | 8 | 16 |
| Albany County [NY] | 18 | 21 | (B) | - |
| Palm Beach County [FL] | 17 | 26 | (B) | - |
| Middlesex County [NJ] | 17 | 19 | 8 | 14 |
| Essex County [MA] | 12 | 20 | (B) | - |
| Montgomery County [PA] | 12 | 19 | 12 | 19 |
| Collier County [FL] | 10 | 10 | 5 | 7 |
| Somerset County [NJ] | 10 | 17 | (B) | - |
| Hamilton County [OH] | 10 | 17 | (B) | - |
| Anne Arundel County [MD] | 9 | 17 | (B) | - |
| Howard County [MD] | 9 | 13 | 9 | 13 |
| Pinellas County [FL] | 8 | 13 | (B) | - |
| Maui County [HI] | 8 | 10 | 2 | 3 |
| Lake County [IL] | 7 | 11 | 7 | 11 |
| Fort Bend County [TX] | 6 | 9 | (B) | - |
| City / Metropolitan area / CBSA | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| Albuquerque [NM] | 13,607 | 920 | 2,190 | 350 |
| Show Low [AZ] | 9,790 | 775 | 1,304 | 276 |
| Phoenix-Mesa-Scottsdale [AZ] | 5,877 | 698 | 577 | 159 |
| Anchorage [AK] | 4,948 | 749 | 1,106 | 302 |
| Tucson [AZ] | 4,763 | 516 | 599 | 183 |
| Tulsa [OK] | 2,339 | 342 | 195 | 77 |
| New York-Newark-Jersey City [NY] | 2,226 | 366 | 631 | 199 |
| Minneapolis-St. Paul-Bloomington [MN-WI] | 2,191 | 380 | 147 | 87 |
| Oklahoma City [OK] | 1,608 | 319 | 171 | 69 |
| Washington-Arlington-Alexandria [DC-VA-MD-WV] | 1,478 | 513 | 310 | 194 |
| Seattle-Tacoma-Bellevue [WA] | 1,159 | 235 | 123 | 80 |
| Los Angeles-Long Beach-Anaheim [CA] | 888 | 260 | 153 | 76 |
| San Francisco-Oakland-Hayward [CA] | 819 | 294 | 72 | 76 |
| Dallas-Fort Worth-Arlington [TX] | 674 | 218 | 86 | 63 |
| Portland-Vancouver-Hillsboro [OR-WA] | 632 | 220 | 130 | 96 |
| Detroit-Warren-Dearborn [MI] | 618 | 231 | 39 | 31 |
| Farmington [NM] | 603 | 340 | 55 | 48 |
| Buffalo-Cheektowaga-Niagara Falls [NY] | 600 | 230 | 169 | 115 |
| Kansas City [MO-KS] | 596 | 223 | 34 | 44 |
| Atlanta-Sandy Springs-Roswell [GA] | 583 | 258 | 54 | 51 |
| Chicago-Naperville-Elgin [IL-IN] | 560 | 174 | 146 | 109 |
| Denver-Aurora-Lakewood [CO] | 548 | 199 | 149 | 112 |
| Philadelphia-Camden-Wilmington [PA-NJ-DE-MD] | 536 | 304 | 130 | 97 |
| Spokane-Spokane Valley [WA] | 522 | 167 | 36 | 29 |
| Reno [NV] | 512 | 140 | 37 | 29 |
| Riverside-San Bernardino-Ontario [CA] | 503 | 160 | 71 | 55 |
| Omaha-Council Bluffs [NE-IA] | 493 | 184 | 107 | 116 |
| Las Vegas-Henderson-Paradise [NV] | 459 | 239 | 72 | 52 |
| San Diego-Carlsbad [CA] | 416 | 176 | 72 | 78 |
| Miami-Fort Lauderdale-West Palm Beach [FL] | 409 | 151 | 36 | 37 |
| Sacramento-Roseville-Arden-Arcade [CA] | 383 | 151 | 69 | 60 |
| Boston-Cambridge-Newton [MA-NH] | 363 | 189 | 53 | 42 |
| Milwaukee-Waukesha-West Allis [WI] | 355 | 130 | 76 | 93 |
| Salt Lake City [UT] | 350 | 139 | (B) | - |
| Columbus [OH] | 329 | 191 | 89 | 76 |
| St. Louis [MO-IL] | 312 | 157 | (B) | - |
| San Jose-Sunnyvale-Santa Clara [CA] | 294 | 193 | 70 | 102 |
| Bakersfield [CA] | 292 | 153 | 72 | 75 |
| Charlotte-Concord-Gastonia [NC-SC] | 283 | 160 | 91 | 86 |
| Baltimore-Columbia-Towson [MD] | 276 | 138 | 52 | 53 |
| Indianapolis-Carmel-Anderson [IN] | 268 | 139 | 49 | 58 |
| Houston-The Woodlands-Sugar Land [TX] | 267 | 107 | 45 | 40 |
| Providence-Warwick [RI-MA] | 243 | 154 | 32 | 40 |
| Austin-Round Rock [TX] | 236 | 203 | 14 | 22 |
| Grand Rapids-Wyoming [MI] | 229 | 142 | 26 | 29 |
| Richmond [VA] | 227 | 172 | 142 | 162 |
| Tampa-St. Petersburg-Clearwater [FL] | 216 | 129 | 90 | 72 |
| Cleveland-Elyria [OH] | 193 | 72 | 7 | 11 |
| Madison [WI] | 193 | 106 | 18 | 30 |
| Rochester [NY] | 193 | 117 | 48 | 41 |
| Nashville-Davidson-Murfreesboro-Franklin [TN] | 188 | 79 | 20 | 20 |
| Syracuse [NY] | 169 | 96 | 48 | 59 |
| Urban Honolulu [HI] | 161 | 103 | 92 | 91 |
| Orlando-Kissimmee-Sanford [FL] | 159 | 95 | 45 | 44 |
| Memphis [TN-MS-AR] | 158 | 138 | 83 | 106 |
| Virginia Beach-Norfolk-Newport News [VA-NC] | 143 | 90 | 17 | 21 |
| Pittsburgh [PA] | 135 | 50 | 4 | 9 |
| New York-Newark-Jersey City [NY-NJ-PA] | 128 | 109 | 22 | 39 |
| Manchester-Nashua [NH] | 124 | 114 | 58 | 71 |
| San Antonio-New Braunfels [TX] | 124 | 76 | (B) | - |
| Jacksonville [FL] | 123 | 92 | 35 | 44 |
| Louisville Jefferson County [KY] | 118 | 81 | 1 | 3 |
| Raleigh [NC] | 117 | 104 | (B) | - |
| Worcester [MA-CT] | 114 | 94 | 35 | 38 |
| Dayton [OH] | 107 | 89 | (B) | - |
| Fresno [CA] | 107 | 75 | 5 | 9 |
| Hartford-West Hartford-East Hartford [CT] | 107 | 72 | 24 | 29 |
| Modesto [CA] | 101 | 70 | (B) | - |
| Lancaster [PA] | 99 | 95 | 21 | 33 |
| Des Moines-West Des Moines [IA] | 98 | 79 | 14 | 26 |
| Stockton-Lodi [CA] | 95 | 85 | (B) | - |
| Lansing-East Lansing [MI] | 94 | 56 | 37 | 52 |
| Colorado Springs [CO] | 92 | 69 | 23 | 36 |
| Ann Arbor [MI] | 90 | 78 | (B) | - |
| Greensboro-High Point [NC] | 88 | 72 | 12 | 20 |
| Trenton [NJ] | 85 | 72 | 13 | 20 |
| Portland-South Portland [ME] | 82 | 61 | 3 | 5 |
| Durham-Chapel Hill [NC] | 77 | 71 | (B) | - |
| Vallejo-Fairfield [CA] | 76 | 79 | 14 | 20 |
| Cincinnati [OH-KY-IN] | 74 | 44 | (B) | - |
| New Haven-Milford [CT] | 72 | 74 | (B) | - |
| Salinas [CA] | 71 | 40 | 12 | 19 |
| Albany-Schenectady-Troy [NY] | 66 | 43 | (B) | - |
| Deltona-Daytona Beach-Ormond Beach [FL] | 60 | 54 | 9 | 15 |
| Harrisburg-Carlisle [PA] | 58 | 73 | 12 | 21 |
| Lafayette [LA] | 51 | 68 | (B) | - |
| Santa Maria-Santa Barbara [CA] | 47 | 32 | (B) | - |
| Allentown-Bethlehem-Easton [PA-NJ] | 45 | 40 | (B) | - |
| Santa Rosa [CA] | 43 | 36 | 4 | 6 |
| Baton Rouge [LA] | 42 | 38 | 26 | 31 |
| Hilo [HI] | 42 | 60 | 16 | 21 |
| Springfield [MA] | 38 | 41 | (B) | - |
| New Orleans-Metairie [LA] | 37 | 44 | (B) | - |
| Bridgeport-Stamford-Norwalk [CT] | 35 | 37 | 10 | 17 |
| Oxnard-Thousand Oaks-Ventura [CA] | 28 | 26 | (B) | - |
| Cape Coral-Fort Myers [FL] | 20 | 23 | (B) | - |
| Naples-Immokalee-Marco Island [FL] | 10 | 10 | 5 | 7 |
| Kahului-Wailuku-Lahaina [HI] | 8 | 10 | 2 | 3 |