| Country | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| United States | 146,310 | 4,254 | 41,535 | 1,840 |
| State | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| Texas | 26,130 | 2,080 | 7,180 | 899 |
| New York | 24,340 | 1,650 | 8,570 | 820 |
| Illinois | 13,980 | 1,358 | 4,680 | 754 |
| California | 11,955 | 1,364 | 2,355 | 420 |
| Pennsylvania | 10,945 | 1,242 | 4,680 | 636 |
| New Jersey | 9,555 | 1,032 | 2,350 | 439 |
| Florida | 7,400 | 1,073 | 2,270 | 484 |
| Maryland | 4,190 | 675 | 975 | 228 |
| Georgia | 4,000 | 742 | 1,010 | 343 |
| Michigan | 3,900 | 616 | 1,000 | 285 |
| Virginia | 2,835 | 519 | 530 | 223 |
| Washington | 2,805 | 710 | 885 | 364 |
| Massachusetts | 2,505 | 587 | 585 | 273 |
| Connecticut | 2,395 | 572 | 475 | 200 |
| North Carolina | 2,375 | 540 | 570 | 227 |
| Oklahoma | 2,375 | 481 | 660 | 234 |
| Ohio | 2,220 | 503 | 475 | 200 |
| Arizona | 1,465 | 413 | 315 | 140 |
| Minnesota | 1,365 | 424 | 165 | 98 |
| Tennessee | 1,355 | 391 | 320 | 178 |
| Colorado | 925 | 320 | 205 | 121 |
| Wisconsin | 810 | 324 | 130 | 90 |
| Missouri | 795 | 284 | 150 | 77 |
| South Carolina | 725 | 358 | 70 | 69 |
| Kansas | 570 | 202 | 125 | 77 |
| Indiana | 520 | 260 | 70 | 72 |
| Iowa | 495 | 158 | 70 | 62 |
| Oregon | 400 | 176 | (D) | (D) |
| Alabama | 365 | 227 | 75 | 89 |
| Nevada | 320 | 207 | 125 | 91 |
| Kentucky | 290 | 137 | 25 | 40 |
| New Hampshire | 270 | 181 | 80 | 80 |
| Louisiana | 215 | 102 | 70 | 56 |
| Rhode Island | 175 | 115 | (B) | - |
| Delaware | 165 | 116 | 45 | 53 |
| Maine | 150 | 159 | 55 | 67 |
| Utah | 150 | 135 | (D) | (D) |
| Arkansas | 135 | 100 | 30 | 40 |
| West Virginia | 130 | 94 | (D) | (D) |
| Nebraska | 125 | 97 | (B) | - |
| District of Columbia | 95 | 67 | (D) | (D) |
| Mississippi | 95 | 112 | (B) | - |
| New Mexico | 90 | 73 | (B) | - |
| Vermont | 85 | 73 | 50 | 50 |
| Alaska | 30 | 25 | 25 | 24 |
| Hawaii | 30 | 38 | (D) | (D) |
| North Dakota | 30 | 29 | (D) | (D) |
| South Dakota | 25 | 32 | (D) | (D) |
| Idaho | (D) | (D) | (D) | (D) |
| Montana | (D) | (D) | (D) | (D) |
| County | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| Cook County [IL] | 8,530 | 1,092 | 3,315 | 602 |
| Nassau County [NY] | 6,990 | 876 | 2,500 | 375 |
| Fort Bend County [TX] | 6,740 | 1,065 | 1,960 | 444 |
| Dallas County [TX] | 6,720 | 890 | 2,480 | 489 |
| Philadelphia County [PA] | 6,050 | 975 | 3,005 | 597 |
| Queens County [NY] | 4,025 | 677 | 1,570 | 427 |
| Westchester County [NY] | 3,960 | 686 | 1,175 | 232 |
| Harris County [TX] | 3,545 | 811 | 870 | 317 |
| Santa Clara County [CA] | 2,970 | 537 | 515 | 165 |
| Rockland County [NY] | 2,690 | 526 | 1,010 | 267 |
| Los Angeles County [CA] | 2,635 | 502 | 755 | 217 |
| DuPage County [IL] | 2,580 | 519 | 600 | 220 |
| Denton County [TX] | 2,445 | 520 | 510 | 170 |
| King County [WA] | 2,370 | 615 | 760 | 340 |
| Broward County [FL] | 2,275 | 517 | 975 | 313 |
| Bergen County [NJ] | 2,190 | 506 | 765 | 229 |
| Alameda County [CA] | 2,145 | 692 | 315 | 195 |
| Gwinnett County [GA] | 2,025 | 505 | 520 | 215 |
| Middlesex County [NJ] | 1,780 | 411 | 310 | 114 |
| Montgomery County [MD] | 1,615 | 409 | 375 | 154 |
| Richmond County [NY] | 1,545 | 436 | 590 | 243 |
| Hillsborough County [FL] | 1,475 | 447 | 475 | 191 |
| Middlesex County [MA] | 1,390 | 407 | 320 | 234 |
| Fairfax County [VA] | 1,355 | 395 | 145 | 124 |
| Oakland County [MI] | 1,335 | 342 | 275 | 140 |
| Macomb County [MI] | 1,300 | 386 | 420 | 169 |
| Maricopa County [AZ] | 1,215 | 378 | 265 | 126 |
| Collin County [TX] | 1,215 | 365 | 265 | 135 |
| Tarrant County [TX] | 1,215 | 499 | 180 | 122 |
| Bucks County [PA] | 1,110 | 388 | 330 | 131 |
| Hartford County [CT] | 1,085 | 361 | 260 | 138 |
| Montgomery County [PA] | 955 | 282 | 280 | 131 |
| Suffolk County [NY] | 950 | 285 | 445 | 183 |
| Kings County [NY] | 905 | 295 | 435 | 154 |
| Wake County [NC] | 885 | 343 | 65 | 53 |
| Lake County [IL] | 875 | 317 | 240 | 123 |
| Delaware County [PA] | 825 | 294 | 520 | 258 |
| Orange County [CA] | 815 | 357 | 95 | 65 |
| Oklahoma County [OK] | 810 | 319 | 230 | 103 |
| Prince George s County [MD] | 715 | 287 | 255 | 114 |
| Morris County [NJ] | 710 | 276 | 130 | 95 |
| Wayne County [MI] | 700 | 277 | 230 | 144 |
| Palm Beach County [FL] | 690 | 352 | 215 | 221 |
| Cuyahoga County [OH] | 685 | 264 | 190 | 121 |
| Union County [NJ] | 670 | 321 | 160 | 137 |
| Fairfield County [CT] | 645 | 308 | 135 | 115 |
| Bexar County [TX] | 640 | 245 | 125 | 97 |
| Hudson County [NJ] | 635 | 311 | 230 | 179 |
| Fulton County [GA] | 625 | 375 | 140 | 129 |
| Travis County [TX] | 615 | 379 | 155 | 123 |
| Henrico County [VA] | 575 | 260 | 225 | 156 |
| Mecklenburg County [NC] | 550 | 254 | 145 | 111 |
| Will County [IL] | 535 | 279 | 170 | 139 |
| Somerset County [NJ] | 525 | 258 | 110 | 120 |
| Franklin County [OH] | 520 | 266 | 155 | 137 |
| Howard County [MD] | 510 | 190 | 90 | 81 |
| Monmouth County [NJ] | 510 | 277 | 50 | 47 |
| Norfolk County [MA] | 500 | 331 | 135 | 127 |
| Bronx County [NY] | 495 | 198 | 225 | 118 |
| Baltimore County [MD] | 490 | 210 | 120 | 67 |
| Essex County [NJ] | 485 | 228 | 120 | 75 |
| Sacramento County [CA] | 455 | 234 | 95 | 92 |
| Johnson County [KS] | 455 | 186 | 85 | 61 |
| San Diego County [CA] | 445 | 178 | (D) | (D) |
| Passaic County [NJ] | 430 | 245 | 95 | 84 |
| Orange County [NY] | 430 | 316 | 85 | 55 |
| Contra Costa County [CA] | 415 | 271 | 130 | 128 |
| Chester County [PA] | 415 | 174 | 145 | 97 |
| Hennepin County [MN] | 395 | 200 | 45 | 36 |
| Arapahoe County [CO] | 385 | 237 | 130 | 105 |
| Allegheny County [PA] | 380 | 176 | 105 | 101 |
| New Haven County [CT] | 375 | 238 | (D) | (D) |
| Camden County [NJ] | 370 | 226 | 105 | 81 |
| Atlantic County [NJ] | 365 | 319 | 145 | 156 |
| Miami-Dade County [FL] | 360 | 192 | 25 | 29 |
| Snohomish County [WA] | 355 | 224 | 115 | 102 |
| St. Louis County [MO] | 350 | 177 | 75 | 67 |
| Dakota County [MN] | 325 | 166 | (B) | - |
| Anne Arundel County [MD] | 320 | 185 | (D) | (D) |
| Monroe County [NY] | 320 | 170 | 115 | 78 |
| Clark County [NV] | 315 | 202 | 120 | 76 |
| San Bernardino County [CA] | 310 | 144 | 20 | 25 |
| San Joaquin County [CA] | 300 | 225 | 65 | 61 |
| Orange County [FL] | 300 | 150 | 90 | 68 |
| Worcester County [MA] | 300 | 209 | 100 | 122 |
| Washington County [OR] | 295 | 161 | (D) | (D) |
| Cobb County [GA] | 280 | 188 | (D) | (D) |
| Davidson County [TN] | 280 | 161 | (D) | (D) |
| New York County [NY] | 275 | 119 | 25 | 30 |
| Lee County [FL] | 265 | 197 | (B) | - |
| Hamilton County [OH] | 265 | 174 | (D) | (D) |
| Ventura County [CA] | 260 | 173 | (D) | (D) |
| Loudoun County [VA] | 260 | 157 | 50 | 58 |
| Kane County [IL] | 255 | 205 | (B) | - |
| Albany County [NY] | 250 | 141 | 60 | 67 |
| Washtenaw County [MI] | 230 | 159 | (B) | - |
| Milwaukee County [WI] | 230 | 195 | 60 | 70 |
| Guilford County [NC] | 225 | 180 | 170 | 169 |
| Ocean County [NJ] | 220 | 211 | (D) | (D) |
| Erie County [NY] | 220 | 170 | 80 | 114 |
| Ramsey County [MN] | 205 | 188 | (D) | (D) |
| Jefferson County [KY] | 200 | 120 | 25 | 40 |
| Mercer County [NJ] | 200 | 147 | 30 | 28 |
| Duval County [FL] | 195 | 122 | (D) | (D) |
| San Mateo County [CA] | 190 | 110 | 30 | 31 |
| Pima County [AZ] | 170 | 148 | (D) | (D) |
| Riverside County [CA] | 165 | 123 | 50 | 54 |
| New Castle County [DE] | 165 | 116 | 45 | 53 |
| Hillsborough County [NH] | 165 | 160 | 60 | 77 |
| Pinellas County [FL] | 155 | 170 | 105 | 102 |
| Salt Lake County [UT] | 150 | 135 | (D) | (D) |
| Kern County [CA] | 140 | 119 | (D) | (D) |
| Arlington County [VA] | 115 | 97 | (B) | - |
| DeKalb County [GA] | 110 | 74 | (D) | (D) |
| Marion County [IN] | 110 | 87 | 25 | 33 |
| Prince William County [VA] | 110 | 99 | (B) | - |
| Suffolk County [MA] | 105 | 56 | (D) | (D) |
| Essex County [MA] | 100 | 89 | (D) | (D) |
| San Francisco County [CA] | 95 | 77 | 40 | 46 |
| District of Columbia [DC] | 95 | 67 | (D) | (D) |
| Polk County [IA] | 95 | 79 | 30 | 47 |
| Bernalillo County [NM] | 90 | 72 | (B) | - |
| Placer County [CA] | 85 | 70 | 40 | 38 |
| Onondaga County [NY] | 85 | 57 | (D) | (D) |
| Santa Barbara County [CA] | 75 | 91 | 45 | 57 |
| Burlington County [NJ] | 70 | 63 | 30 | 36 |
| Bristol County [MA] | 60 | 63 | (D) | (D) |
| Fresno County [CA] | 55 | 66 | (B) | - |
| Baltimore city [MD] | 55 | 43 | (B) | - |
| Monterey County [CA] | 45 | 68 | (B) | - |
| Providence County [RI] | 40 | 39 | (B) | - |
| Shelby County [TN] | 35 | 37 | (B) | - |
| Pierce County [WA] | 35 | 28 | 10 | 14 |
| Denver County [CO] | 30 | 23 | (B) | - |
| Honolulu County [HI] | 30 | 38 | (D) | (D) |
| Multnomah County [OR] | 30 | 29 | (D) | (D) |
| Hampden County [MA] | 20 | 26 | (B) | - |
| Stanislaus County [CA] | (D) | (D) | (B) | - |
| Yolo County [CA] | (D) | (D) | (B) | - |
| El Paso County [CO] | (D) | (D) | (B) | - |
| Collier County [FL] | (D) | (D) | (B) | - |
| Jefferson Parish [LA] | (D) | (D) | (D) | (D) |
| Washoe County [NV] | (D) | (D) | (D) | (D) |
| Virginia Beach city [VA] | (D) | (D) | (B) | - |
| Clark County [WA] | (D) | (D) | (B) | - |
| Dane County [WI] | (D) | (D) | (D) | (D) |
| 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] | 31,035 | 1,715 | 10,230 | 777 |
| Chicago-Naperville-Elgin [IL-IN] | 13,160 | 1,322 | 4,495 | 751 |
| Houston-The Woodlands-Sugar Land [TX] | 11,810 | 1,493 | 3,040 | 609 |
| Dallas-Fort Worth-Arlington [TX] | 11,770 | 1,372 | 3,475 | 626 |
| Philadelphia-Camden-Wilmington [PA-NJ-DE-MD] | 10,370 | 1,105 | 4,480 | 612 |
| Washington-Arlington-Alexandria [DC-VA-MD-WV] | 4,530 | 754 | 900 | 253 |
| Los Angeles-Long Beach-Anaheim [CA] | 3,450 | 616 | 855 | 223 |
| Detroit-Warren-Dearborn [MI] | 3,345 | 590 | 930 | 286 |
| Miami-Fort Lauderdale-West Palm Beach [FL] | 3,325 | 656 | 1,210 | 390 |
| Atlanta-Sandy Springs-Roswell [GA] | 3,295 | 710 | 735 | 250 |
| San Jose-Sunnyvale-Santa Clara [CA] | 2,970 | 537 | 515 | 165 |
| San Francisco-Oakland-Hayward [CA] | 2,895 | 842 | 515 | 260 |
| Seattle-Tacoma-Bellevue [WA] | 2,760 | 707 | 885 | 364 |
| Boston-Cambridge-Newton [MA-NH] | 2,140 | 547 | 470 | 251 |
| Oklahoma City [OK] | 1,825 | 443 | 475 | 185 |
| Tampa-St. Petersburg-Clearwater [FL] | 1,720 | 497 | 600 | 219 |
| Baltimore-Columbia-Towson [MD] | 1,530 | 417 | 280 | 125 |
| Minneapolis-St. Paul-Bloomington [MN-WI] | 1,285 | 415 | 150 | 96 |
| Phoenix-Mesa-Scottsdale [AZ] | 1,215 | 378 | 265 | 126 |
| Hartford-West Hartford-East Hartford [CT] | 1,155 | 354 | 260 | 138 |
| Charlotte-Concord-Gastonia [NC-SC] | 1,125 | 434 | 240 | 150 |
| Raleigh [NC] | 900 | 342 | 65 | 53 |
| Austin-Round Rock [TX] | 855 | 410 | 215 | 160 |
| Denver-Aurora-Lakewood [CO] | 820 | 315 | 205 | 121 |
| Orlando-Kissimmee-Sanford [FL] | 740 | 370 | 135 | 87 |
| San Antonio-New Braunfels [TX] | 720 | 286 | 170 | 119 |
| Cleveland-Elyria [OH] | 685 | 264 | 190 | 121 |
| Columbus [OH] | 665 | 279 | 155 | 137 |
| Richmond [VA] | 660 | 274 | 235 | 155 |
| Bridgeport-Stamford-Norwalk [CT] | 645 | 308 | 135 | 115 |
| Kansas City [MO-KS] | 645 | 237 | 105 | 70 |
| Milwaukee-Waukesha-West Allis [WI] | 600 | 301 | 80 | 74 |
| St. Louis [MO-IL] | 600 | 248 | 110 | 78 |
| Sacramento-Roseville-Arden-Arcade [CA] | 565 | 243 | 140 | 99 |
| Cincinnati [OH-KY-IN] | 530 | 257 | (D) | (D) |
| Riverside-San Bernardino-Ontario [CA] | 480 | 198 | 75 | 64 |
| Pittsburgh [PA] | 475 | 196 | 150 | 119 |
| San Diego-Carlsbad [CA] | 445 | 178 | (D) | (D) |
| Albany-Schenectady-Troy [NY] | 420 | 189 | 80 | 73 |
| Portland-Vancouver-Hillsboro [OR-WA] | 400 | 184 | (D) | (D) |
| Worcester [MA-CT] | 400 | 256 | 155 | 141 |
| Nashville-Davidson-Murfreesboro-Franklin [TN] | 390 | 177 | 35 | 41 |
| New Haven-Milford [CT] | 375 | 238 | (D) | (D) |
| Atlantic City-Hammonton [NJ] | 365 | 319 | 145 | 156 |
| Rochester [NY] | 350 | 178 | 115 | 78 |
| Tulsa [OK] | 330 | 234 | 90 | 82 |
| Las Vegas-Henderson-Paradise [NV] | 315 | 202 | 120 | 76 |
| Allentown-Bethlehem-Easton [PA-NJ] | 305 | 170 | 20 | 37 |
| Stockton-Lodi [CA] | 300 | 225 | 65 | 61 |
| Cape Coral-Fort Myers [FL] | 265 | 197 | (B) | - |
| Oxnard-Thousand Oaks-Ventura [CA] | 260 | 173 | (D) | (D) |
| Dayton [OH] | 250 | 186 | 70 | 67 |
| Providence-Warwick [RI-MA] | 235 | 132 | (D) | (D) |
| Ann Arbor [MI] | 230 | 159 | (B) | - |
| Greensboro-High Point [NC] | 225 | 180 | 170 | 169 |
| Harrisburg-Carlisle [PA] | 225 | 142 | 40 | 40 |
| Buffalo-Cheektowaga-Niagara Falls [NY] | 220 | 170 | 80 | 114 |
| Louisville Jefferson County [KY] | 200 | 121 | 25 | 40 |
| Trenton [NJ] | 200 | 147 | 30 | 28 |
| Jacksonville [FL] | 195 | 122 | (D) | (D) |
| Tucson [AZ] | 170 | 148 | (D) | (D) |
| Manchester-Nashua [NH] | 165 | 160 | 60 | 77 |
| Indianapolis-Carmel-Anderson [IN] | 160 | 104 | 25 | 33 |
| Salt Lake City [UT] | 150 | 135 | (D) | (D) |
| Bakersfield [CA] | 140 | 119 | (D) | (D) |
| Durham-Chapel Hill [NC] | 135 | 108 | (D) | (D) |
| Des Moines-West Des Moines [IA] | 125 | 86 | 30 | 47 |
| Omaha-Council Bluffs [NE-IA] | 110 | 93 | (B) | - |
| Grand Rapids-Wyoming [MI] | 95 | 111 | (D) | (D) |
| Albuquerque [NM] | 90 | 73 | (B) | - |
| Syracuse [NY] | 90 | 56 | (D) | (D) |
| Santa Maria-Santa Barbara [CA] | 75 | 91 | 45 | 57 |
| Virginia Beach-Norfolk-Newport News [VA-NC] | 70 | 62 | 45 | 47 |
| Baton Rouge [LA] | 55 | 54 | (D) | (D) |
| Fresno [CA] | 55 | 66 | (B) | - |
| Colorado Springs [CO] | 50 | 63 | (B) | - |
| New York-Newark-Jersey City [NY-NJ-PA] | 45 | 55 | (B) | - |
| Salinas [CA] | 45 | 68 | (B) | - |
| New Orleans-Metairie [LA] | 40 | 41 | (D) | (D) |
| Springfield [MA] | 40 | 40 | (B) | - |
| Memphis [TN-MS-AR] | 35 | 37 | (B) | - |
| Urban Honolulu [HI] | 30 | 38 | (D) | (D) |
| Lansing-East Lansing [MI] | 25 | 32 | (B) | - |
| Akron [OH] | 20 | 28 | (B) | - |
| Deltona-Daytona Beach-Ormond Beach [FL] | (D) | (D) | (B) | - |
| Lafayette [LA] | (D) | (D) | (B) | - |
| Madison [WI] | (D) | (D) | (D) | (D) |
| Modesto [CA] | (D) | (D) | (B) | - |
| Naples-Immokalee-Marco Island [FL] | (D) | (D) | (B) | - |
| Portland-South Portland [ME] | (D) | (D) | (B) | - |
| Reno [NV] | (D) | (D) | (D) | (D) |
| Spokane-Spokane Valley [WA] | (D) | (D) | (B) | - |