| Country | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| United States | 30,185 | 2,426 | 26,440 | 2,238 |
| State | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| New York | 5,165 | 947 | 4,930 | 942 |
| Minnesota | 4,490 | 908 | 4,045 | 847 |
| North Carolina | 3,155 | 959 | 2,505 | 813 |
| Texas | 2,630 | 767 | 2,100 | 622 |
| Nebraska | 1,550 | 482 | 1,465 | 473 |
| Arizona | 1,290 | 430 | 1,110 | 407 |
| Georgia | 1,230 | 613 | 1,015 | 579 |
| California | 1,160 | 386 | 975 | 355 |
| Illinois | 1,000 | 398 | 730 | 329 |
| Iowa | 905 | 344 | 780 | 312 |
| South Dakota | 845 | 198 | 750 | 235 |
| Pennsylvania | 765 | 537 | 725 | 528 |
| Kentucky | 755 | 399 | 650 | 342 |
| Colorado | 745 | 417 | 615 | 361 |
| Michigan | 525 | 375 | 505 | 372 |
| Indiana | 460 | 345 | 460 | 345 |
| Ohio | 430 | 295 | 390 | 263 |
| Utah | 400 | 254 | 330 | 230 |
| Wisconsin | 340 | 176 | 260 | 137 |
| Florida | 325 | 301 | 270 | 284 |
| Virginia | 275 | 284 | 275 | 284 |
| Idaho | 270 | 208 | 215 | 159 |
| Kansas | 245 | 247 | 245 | 247 |
| Washington | 240 | 217 | 240 | 217 |
| Missouri | 170 | 169 | 130 | 121 |
| Tennessee | 165 | 209 | 165 | 209 |
| Oregon | 155 | 129 | 110 | 123 |
| Connecticut | 125 | 106 | 125 | 106 |
| Oklahoma | 125 | 108 | 95 | 77 |
| South Carolina | 65 | 101 | 60 | 90 |
| New Jersey | 60 | 133 | 50 | 120 |
| Vermont | 55 | 93 | 55 | 93 |
| Massachusetts | 50 | 78 | 50 | 78 |
| Arkansas | (D) | (D) | (D) | (D) |
| Montana | (D) | (D) | (B) | - |
| County | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| Ramsey County [MN] | 4,375 | 888 | 3,925 | 824 |
| Erie County [NY] | 1,320 | 634 | 1,300 | 630 |
| Maricopa County [AZ] | 1,130 | 391 | 950 | 366 |
| DeKalb County [GA] | 1,005 | 554 | 860 | 540 |
| Harris County [TX] | 1,005 | 489 | 785 | 459 |
| Guilford County [NC] | 855 | 463 | 665 | 377 |
| Allegheny County [PA] | 690 | 518 | 685 | 520 |
| Onondaga County [NY] | 610 | 361 | 585 | 357 |
| Dallas County [TX] | 610 | 534 | 375 | 311 |
| Polk County [IA] | 555 | 323 | 470 | 295 |
| San Diego County [CA] | 455 | 248 | 430 | 232 |
| Jefferson County [KY] | 385 | 317 | 325 | 257 |
| Albany County [NY] | 345 | 261 | 300 | 223 |
| Salt Lake County [UT] | 330 | 241 | 260 | 216 |
| Denver County [CO] | 310 | 265 | 225 | 199 |
| Duval County [FL] | 265 | 292 | 215 | 278 |
| Marion County [IN] | 260 | 324 | 260 | 324 |
| Bexar County [TX] | 235 | 183 | 235 | 183 |
| DuPage County [IL] | 225 | 217 | 150 | 156 |
| Kane County [IL] | 225 | 144 | 155 | 98 |
| Wake County [NC] | 215 | 133 | 205 | 132 |
| Santa Clara County [CA] | 210 | 254 | 210 | 254 |
| Monroe County [NY] | 210 | 143 | 205 | 143 |
| Milwaukee County [WI] | 195 | 119 | 195 | 119 |
| New York County [NY] | 170 | 231 | 170 | 231 |
| Bronx County [NY] | 160 | 192 | 135 | 188 |
| Davidson County [TN] | 155 | 208 | 155 | 208 |
| Kern County [CA] | 125 | 98 | 115 | 94 |
| Hartford County [CT] | 125 | 106 | 125 | 106 |
| Multnomah County [OR] | 125 | 126 | 110 | 123 |
| Will County [IL] | 120 | 139 | 85 | 129 |
| Pima County [AZ] | 115 | 184 | 115 | 184 |
| Nassau County [NY] | 115 | 132 | 95 | 103 |
| Alameda County [CA] | 110 | 126 | 110 | 126 |
| Kings County [NY] | 105 | 122 | 105 | 122 |
| Collin County [TX] | 85 | 113 | 65 | 105 |
| Tarrant County [TX] | 80 | 106 | 80 | 106 |
| Queens County [NY] | 75 | 82 | 60 | 72 |
| Cook County [IL] | 70 | 74 | (D) | (D) |
| Lancaster County [PA] | 65 | 106 | (D) | (D) |
| San Joaquin County [CA] | 60 | 94 | 40 | 61 |
| Mercer County [NJ] | 60 | 133 | 50 | 120 |
| Yolo County [CA] | 55 | 73 | 40 | 54 |
| Arapahoe County [CO] | 50 | 100 | 50 | 100 |
| Hampden County [MA] | 50 | 78 | 50 | 78 |
| Hillsborough County [FL] | 40 | 65 | 35 | 55 |
| Cuyahoga County [OH] | 35 | 40 | 35 | 40 |
| King County [WA] | 35 | 45 | 35 | 45 |
| Los Angeles County [CA] | 30 | 57 | (D) | (D) |
| Oklahoma County [OK] | 25 | 45 | 25 | 45 |
| Orange County [CA] | (D) | (D) | (D) | (D) |
| San Bernardino County [CA] | (D) | (D) | (B) | - |
| Sonoma County [CA] | (D) | (D) | (B) | - |
| Dakota County [MN] | (D) | (D) | (D) | (D) |
| Mecklenburg County [NC] | (D) | (D) | (D) | (D) |
| Washington County [OR] | (D) | (D) | (B) | - |
| Travis County [TX] | (D) | (D) | (D) | (D) |
| Fairfax County [VA] | (D) | (D) | (D) | (D) |
| City / Metropolitan area / CBSA | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| Minneapolis-St. Paul-Bloomington [MN-WI] | 4,390 | 886 | 3,945 | 822 |
| Buffalo-Cheektowaga-Niagara Falls [NY] | 1,330 | 635 | 1,310 | 630 |
| Omaha-Council Bluffs [NE-IA] | 1,310 | 505 | 1,230 | 496 |
| Phoenix-Mesa-Scottsdale [AZ] | 1,130 | 391 | 950 | 366 |
| Durham-Chapel Hill [NC] | 1,030 | 551 | 650 | 379 |
| Atlanta-Sandy Springs-Roswell [GA] | 1,005 | 554 | 860 | 540 |
| Houston-The Woodlands-Sugar Land [TX] | 1,005 | 489 | 785 | 459 |
| Greensboro-High Point [NC] | 855 | 463 | 665 | 377 |
| Dallas-Fort Worth-Arlington [TX] | 775 | 553 | 520 | 341 |
| Pittsburgh [PA] | 690 | 518 | 685 | 520 |
| Chicago-Naperville-Elgin [IL-IN] | 675 | 295 | 455 | 226 |
| New York-Newark-Jersey City [NY] | 625 | 379 | 560 | 377 |
| Denver-Aurora-Lakewood [CO] | 610 | 394 | 505 | 342 |
| Syracuse [NY] | 610 | 361 | 585 | 357 |
| Des Moines-West Des Moines [IA] | 555 | 324 | 470 | 295 |
| San Diego-Carlsbad [CA] | 455 | 248 | 430 | 232 |
| Louisville Jefferson County [KY] | 385 | 317 | 325 | 257 |
| Grand Rapids-Wyoming [MI] | 365 | 353 | 365 | 353 |
| Akron [OH] | 355 | 286 | 335 | 258 |
| Albany-Schenectady-Troy [NY] | 345 | 261 | 300 | 223 |
| Salt Lake City [UT] | 330 | 241 | 260 | 216 |
| Kansas City [MO-KS] | 315 | 289 | 315 | 289 |
| Jacksonville [FL] | 265 | 292 | 215 | 278 |
| Indianapolis-Carmel-Anderson [IN] | 260 | 324 | 260 | 324 |
| San Antonio-New Braunfels [TX] | 235 | 183 | 235 | 183 |
| Milwaukee-Waukesha-West Allis [WI] | 225 | 128 | 215 | 124 |
| Raleigh [NC] | 215 | 133 | 205 | 132 |
| Rochester [NY] | 210 | 143 | 205 | 143 |
| San Jose-Sunnyvale-Santa Clara [CA] | 210 | 254 | 210 | 254 |
| Nashville-Davidson-Murfreesboro-Franklin [TN] | 165 | 209 | 165 | 209 |
| Portland-Vancouver-Hillsboro [OR-WA] | 155 | 129 | 110 | 123 |
| Richmond [VA] | 150 | 222 | 150 | 222 |
| Lansing-East Lansing [MI] | 135 | 137 | 115 | 132 |
| Bakersfield [CA] | 125 | 98 | 115 | 94 |
| Hartford-West Hartford-East Hartford [CT] | 125 | 106 | 125 | 106 |
| St. Louis [MO-IL] | 115 | 122 | 70 | 62 |
| Tucson [AZ] | 115 | 184 | 115 | 184 |
| San Francisco-Oakland-Hayward [CA] | 110 | 126 | 110 | 126 |
| Tulsa [OK] | 90 | 106 | 60 | 69 |
| Lancaster [PA] | 65 | 106 | (D) | (D) |
| Stockton-Lodi [CA] | 60 | 94 | 40 | 61 |
| Trenton [NJ] | 60 | 133 | 50 | 120 |
| Sacramento-Roseville-Arden-Arcade [CA] | 55 | 73 | 40 | 54 |
| Austin-Round Rock [TX] | 50 | 53 | 45 | 53 |
| Los Angeles-Long Beach-Anaheim [CA] | 50 | 63 | 30 | 36 |
| Springfield [MA] | 50 | 78 | 50 | 78 |
| Cleveland-Elyria [OH] | 45 | 43 | 45 | 43 |
| Tampa-St. Petersburg-Clearwater [FL] | 40 | 65 | 35 | 55 |
| Seattle-Tacoma-Bellevue [WA] | 35 | 45 | 35 | 45 |
| Oklahoma City [OK] | 25 | 45 | 25 | 45 |
| Charlotte-Concord-Gastonia [NC-SC] | (D) | (D) | (D) | (D) |
| Riverside-San Bernardino-Ontario [CA] | (D) | (D) | (B) | - |
| Santa Rosa [CA] | (D) | (D) | (B) | - |
| Spokane-Spokane Valley [WA] | (D) | (D) | (D) | (D) |
| Washington-Arlington-Alexandria [DC-VA-MD-WV] | (D) | (D) | (D) | (D) |