| Country | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| United States | 116,515 | 3,904 | 43,495 | 2,084 |
| State | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| New York | 19,145 | 1,601 | 7,855 | 845 |
| California | 13,370 | 985 | 4,730 | 605 |
| New Jersey | 13,235 | 1,199 | 5,780 | 682 |
| Florida | 8,640 | 1,064 | 3,055 | 728 |
| Texas | 7,970 | 1,063 | 2,360 | 458 |
| Virginia | 5,780 | 837 | 2,260 | 465 |
| Massachusetts | 4,425 | 642 | 1,270 | 356 |
| Illinois | 4,325 | 721 | 1,515 | 304 |
| Pennsylvania | 4,110 | 540 | 1,550 | 343 |
| Maryland | 3,555 | 680 | 1,200 | 402 |
| Washington | 3,330 | 847 | 1,440 | 563 |
| Georgia | 3,190 | 766 | 985 | 319 |
| Ohio | 2,810 | 549 | 1,030 | 234 |
| Connecticut | 2,195 | 457 | 935 | 253 |
| Missouri | 1,945 | 884 | 750 | 404 |
| North Carolina | 1,845 | 450 | 330 | 138 |
| Michigan | 1,265 | 310 | 430 | 214 |
| Colorado | 1,180 | 414 | 625 | 332 |
| Arizona | 1,030 | 388 | 290 | 152 |
| Wisconsin | 940 | 286 | 330 | 147 |
| Nevada | 805 | 334 | 160 | 120 |
| Alabama | 790 | 472 | 505 | 422 |
| Minnesota | 765 | 281 | 285 | 167 |
| Oklahoma | 715 | 328 | 220 | 158 |
| Indiana | 655 | 231 | 285 | 197 |
| Oregon | 645 | 255 | 280 | 164 |
| Tennessee | 640 | 338 | 240 | 168 |
| Delaware | 615 | 296 | 200 | 127 |
| Kentucky | 580 | 258 | 265 | 161 |
| South Carolina | 550 | 283 | 170 | 115 |
| Louisiana | 525 | 240 | 230 | 161 |
| Kansas | 520 | 252 | 200 | 133 |
| Utah | 500 | 224 | 305 | 183 |
| Iowa | 445 | 224 | 140 | 109 |
| Rhode Island | 400 | 219 | 195 | 159 |
| District of Columbia | 380 | 156 | 80 | 84 |
| Mississippi | 370 | 229 | 80 | 75 |
| Nebraska | 360 | 249 | 75 | 83 |
| Idaho | 325 | 240 | 200 | 172 |
| Arkansas | 315 | 206 | 150 | 204 |
| New Mexico | 265 | 151 | 130 | 85 |
| Maine | 250 | 264 | 135 | 148 |
| New Hampshire | 220 | 156 | 45 | 48 |
| West Virginia | 135 | 68 | (D) | (D) |
| Alaska | 125 | 144 | 75 | 71 |
| North Dakota | 125 | 77 | 45 | 41 |
| Wyoming | 70 | 64 | (D) | (D) |
| Vermont | 50 | 43 | 20 | 25 |
| Hawaii | 40 | 39 | (B) | - |
| Montana | 40 | 36 | 30 | 32 |
| South Dakota | (D) | (D) | (B) | - |
| County | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| Bergen County [NJ] | 3,855 | 607 | 1,930 | 424 |
| Los Angeles County [CA] | 3,740 | 653 | 1,440 | 341 |
| Kings County [NY] | 3,380 | 667 | 1,875 | 395 |
| Suffolk County [NY] | 3,085 | 615 | 1,525 | 433 |
| Fairfax County [VA] | 2,700 | 701 | 1,040 | 392 |
| Passaic County [NJ] | 2,495 | 673 | 1,110 | 307 |
| New York County [NY] | 2,495 | 483 | 545 | 191 |
| Cook County [IL] | 2,465 | 563 | 835 | 223 |
| King County [WA] | 2,410 | 722 | 1,140 | 503 |
| Queens County [NY] | 2,385 | 448 | 980 | 286 |
| Harris County [TX] | 2,295 | 526 | 760 | 222 |
| Monroe County [NY] | 2,085 | 569 | 1,030 | 303 |
| Orange County [CA] | 1,960 | 453 | 690 | 217 |
| Broward County [FL] | 1,765 | 632 | 920 | 557 |
| Nassau County [NY] | 1,680 | 426 | 680 | 225 |
| Fulton County [GA] | 1,585 | 642 | 340 | 162 |
| Middlesex County [MA] | 1,500 | 380 | 350 | 159 |
| Santa Clara County [CA] | 1,495 | 400 | 340 | 148 |
| Palm Beach County [FL] | 1,305 | 369 | 290 | 149 |
| Hudson County [NJ] | 1,235 | 332 | 330 | 155 |
| San Diego County [CA] | 1,195 | 310 | 380 | 194 |
| New Haven County [CT] | 1,180 | 421 | 495 | 226 |
| Montgomery County [MD] | 1,170 | 394 | 200 | 89 |
| Burlington County [NJ] | 1,125 | 426 | 520 | 224 |
| Miami-Dade County [FL] | 1,090 | 413 | 325 | 140 |
| San Mateo County [CA] | 1,080 | 481 | 535 | 300 |
| Allegheny County [PA] | 955 | 291 | 455 | 236 |
| Richmond County [NY] | 895 | 358 | 330 | 243 |
| Middlesex County [NJ] | 850 | 281 | 300 | 132 |
| Norfolk County [MA] | 830 | 283 | 100 | 74 |
| Travis County [TX] | 825 | 338 | 200 | 112 |
| Fort Bend County [TX] | 775 | 411 | 165 | 109 |
| Bexar County [TX] | 765 | 301 | 270 | 175 |
| Suffolk County [MA] | 710 | 241 | 205 | 123 |
| Hillsborough County [FL] | 690 | 301 | 235 | 133 |
| DuPage County [IL] | 650 | 242 | 330 | 159 |
| Camden County [NJ] | 650 | 357 | 400 | 271 |
| Westchester County [NY] | 640 | 277 | 180 | 109 |
| Alameda County [CA] | 625 | 214 | 215 | 129 |
| Sacramento County [CA] | 625 | 346 | 375 | 241 |
| Franklin County [OH] | 625 | 272 | 265 | 155 |
| Collin County [TX] | 625 | 241 | 155 | 97 |
| Orange County [FL] | 615 | 272 | 230 | 150 |
| Dallas County [TX] | 610 | 268 | 205 | 137 |
| Fairfield County [CT] | 595 | 187 | 230 | 117 |
| Cuyahoga County [OH] | 595 | 251 | 155 | 79 |
| Bucks County [PA] | 570 | 205 | 290 | 119 |
| Maricopa County [AZ] | 560 | 286 | 105 | 65 |
| DeKalb County [GA] | 540 | 311 | 190 | 167 |
| Tarrant County [TX] | 540 | 252 | 235 | 167 |
| San Francisco County [CA] | 535 | 245 | 125 | 90 |
| Baltimore County [MD] | 535 | 320 | 295 | 244 |
| Clark County [NV] | 530 | 258 | 145 | 116 |
| Denton County [TX] | 505 | 467 | (D) | (D) |
| Hampden County [MA] | 495 | 283 | 395 | 229 |
| Philadelphia County [PA] | 480 | 167 | 145 | 104 |
| Milwaukee County [WI] | 475 | 221 | 175 | 112 |
| St. Louis County [MO] | 465 | 240 | 225 | 146 |
| Morris County [NJ] | 460 | 246 | 80 | 53 |
| Mecklenburg County [NC] | 460 | 201 | 115 | 82 |
| Monmouth County [NJ] | 455 | 204 | 240 | 127 |
| Pima County [AZ] | 450 | 236 | 185 | 141 |
| Howard County [MD] | 450 | 275 | 155 | 116 |
| Erie County [NY] | 445 | 233 | 205 | 111 |
| Bronx County [NY] | 440 | 186 | 195 | 168 |
| Wake County [NC] | 430 | 257 | 120 | 79 |
| Essex County [NJ] | 415 | 224 | 190 | 104 |
| Hennepin County [MN] | 405 | 174 | 150 | 79 |
| New Castle County [DE] | 395 | 245 | 110 | 84 |
| Loudoun County [VA] | 395 | 236 | 90 | 90 |
| Duval County [FL] | 385 | 256 | 145 | 133 |
| Contra Costa County [CA] | 380 | 180 | 115 | 79 |
| District of Columbia [DC] | 380 | 156 | 80 | 84 |
| Jefferson County [KY] | 380 | 213 | 210 | 151 |
| Pinellas County [FL] | 370 | 219 | 180 | 124 |
| Denver County [CO] | 360 | 322 | 265 | 312 |
| Hartford County [CT] | 360 | 182 | 180 | 105 |
| Washtenaw County [MI] | 360 | 186 | 90 | 71 |
| Providence County [RI] | 345 | 213 | 150 | 148 |
| Arlington County [VA] | 325 | 177 | 90 | 81 |
| Arapahoe County [CO] | 320 | 167 | 150 | 100 |
| Collier County [FL] | 320 | 378 | 170 | 227 |
| Cobb County [GA] | 310 | 147 | 125 | 94 |
| Essex County [MA] | 305 | 200 | 85 | 88 |
| Snohomish County [WA] | 300 | 264 | (D) | (D) |
| Clark County [WA] | 295 | 260 | 205 | 182 |
| Virginia Beach city [VA] | 290 | 151 | 130 | 102 |
| Salt Lake County [UT] | 280 | 174 | 175 | 144 |
| Gwinnett County [GA] | 275 | 158 | 115 | 99 |
| Johnson County [KS] | 275 | 208 | 100 | 75 |
| Anne Arundel County [MD] | 270 | 166 | 45 | 38 |
| Washoe County [NV] | 270 | 187 | (D) | (D) |
| Washington County [OR] | 265 | 165 | 125 | 113 |
| Montgomery County [PA] | 265 | 152 | 95 | 84 |
| Riverside County [CA] | 255 | 155 | 45 | 41 |
| Prince George s County [MD] | 255 | 125 | 45 | 40 |
| Dane County [WI] | 250 | 132 | 95 | 80 |
| Lake County [IL] | 245 | 134 | 30 | 32 |
| Union County [NJ] | 245 | 174 | 55 | 43 |
| Delaware County [PA] | 245 | 147 | 60 | 52 |
| Mercer County [NJ] | 235 | 240 | 80 | 86 |
| Henrico County [VA] | 235 | 142 | 85 | 69 |
| Worcester County [MA] | 230 | 144 | 100 | 85 |
| Monterey County [CA] | 220 | 126 | 125 | 85 |
| Oklahoma County [OK] | 220 | 170 | 150 | 155 |
| Ocean County [NJ] | 215 | 113 | 75 | 50 |
| Rockland County [NY] | 215 | 166 | 45 | 43 |
| Chester County [PA] | 215 | 167 | (D) | (D) |
| Multnomah County [OR] | 200 | 118 | 115 | 83 |
| Fresno County [CA] | 195 | 89 | 95 | 60 |
| Bernalillo County [NM] | 195 | 133 | 100 | 73 |
| San Bernardino County [CA] | 190 | 130 | 30 | 31 |
| Baltimore city [MD] | 190 | 166 | 105 | 153 |
| Atlantic County [NJ] | 190 | 114 | 85 | 56 |
| Oakland County [MI] | 185 | 99 | 35 | 34 |
| Prince William County [VA] | 175 | 111 | 80 | 95 |
| Davidson County [TN] | 170 | 101 | 85 | 72 |
| Macomb County [MI] | 165 | 131 | 95 | 114 |
| Onondaga County [NY] | 165 | 101 | 105 | 91 |
| Plymouth County [MA] | 155 | 115 | (D) | (D) |
| San Joaquin County [CA] | 150 | 161 | (D) | (D) |
| Pierce County [WA] | 140 | 98 | (B) | - |
| Wayne County [MI] | 125 | 78 | 30 | 38 |
| Solano County [CA] | 120 | 141 | 35 | 41 |
| Ventura County [CA] | 120 | 109 | (D) | (D) |
| Guilford County [NC] | 110 | 109 | (D) | (D) |
| Anchorage Municipality [AK] | 105 | 139 | 50 | 62 |
| Santa Barbara County [CA] | 105 | 67 | 30 | 37 |
| Hamilton County [OH] | 95 | 69 | 45 | 33 |
| Jefferson Parish [LA] | 90 | 129 | 90 | 129 |
| Somerset County [NJ] | 85 | 63 | 45 | 45 |
| Ramsey County [MN] | 75 | 56 | (B) | - |
| Yolo County [CA] | 70 | 62 | 30 | 36 |
| Lancaster County [PA] | 65 | 54 | 45 | 35 |
| Hillsborough County [NH] | 60 | 72 | 35 | 38 |
| Shelby County [TN] | 60 | 55 | (D) | (D) |
| Lee County [FL] | 55 | 77 | (B) | - |
| Sonoma County [CA] | 50 | 49 | (D) | (D) |
| Bristol County [MA] | 45 | 106 | (D) | (D) |
| Honolulu County [HI] | 40 | 39 | (B) | - |
| Marion County [IN] | 40 | 39 | (D) | (D) |
| Dakota County [MN] | 30 | 31 | (D) | (D) |
| Kern County [CA] | 25 | 27 | (D) | (D) |
| Albany County [NY] | 25 | 26 | (B) | - |
| Placer County [CA] | (D) | (D) | (D) | (D) |
| Stanislaus County [CA] | (D) | (D) | (B) | - |
| El Paso County [CO] | (D) | (D) | (B) | - |
| Kane County [IL] | (D) | (D) | (B) | - |
| Orange County [NY] | (D) | (D) | (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] | 26,010 | 1,902 | 10,795 | 1,089 |
| Washington-Arlington-Alexandria [DC-VA-MD-WV] | 5,830 | 840 | 1,800 | 425 |
| Los Angeles-Long Beach-Anaheim [CA] | 5,700 | 775 | 2,130 | 398 |
| Philadelphia-Camden-Wilmington [PA-NJ-DE-MD] | 4,265 | 739 | 1,865 | 422 |
| Miami-Fort Lauderdale-West Palm Beach [FL] | 4,160 | 778 | 1,535 | 594 |
| Boston-Cambridge-Newton [MA-NH] | 3,630 | 602 | 760 | 268 |
| Chicago-Naperville-Elgin [IL-IN] | 3,510 | 636 | 1,280 | 271 |
| Houston-The Woodlands-Sugar Land [TX] | 3,170 | 615 | 940 | 245 |
| Atlanta-Sandy Springs-Roswell [GA] | 2,965 | 754 | 925 | 312 |
| Seattle-Tacoma-Bellevue [WA] | 2,850 | 769 | 1,185 | 519 |
| San Francisco-Oakland-Hayward [CA] | 2,760 | 613 | 1,015 | 334 |
| Dallas-Fort Worth-Arlington [TX] | 2,325 | 614 | 635 | 262 |
| Rochester [NY] | 2,085 | 569 | 1,030 | 303 |
| St. Louis [MO-IL] | 1,845 | 884 | 710 | 392 |
| Baltimore-Columbia-Towson [MD] | 1,580 | 525 | 620 | 340 |
| San Jose-Sunnyvale-Santa Clara [CA] | 1,495 | 400 | 340 | 148 |
| San Diego-Carlsbad [CA] | 1,195 | 310 | 380 | 194 |
| New Haven-Milford [CT] | 1,180 | 421 | 495 | 226 |
| Orlando-Kissimmee-Sanford [FL] | 1,170 | 412 | 565 | 273 |
| Pittsburgh [PA] | 1,170 | 382 | 535 | 260 |
| Tampa-St. Petersburg-Clearwater [FL] | 1,085 | 363 | 415 | 191 |
| Austin-Round Rock [TX] | 990 | 366 | 280 | 144 |
| Denver-Aurora-Lakewood [CO] | 915 | 333 | 520 | 300 |
| Portland-Vancouver-Hillsboro [OR-WA] | 800 | 308 | 460 | 222 |
| San Antonio-New Braunfels [TX] | 785 | 301 | 270 | 175 |
| Columbus [OH] | 745 | 307 | 275 | 155 |
| Sacramento-Roseville-Arden-Arcade [CA] | 715 | 354 | 420 | 246 |
| Cleveland-Elyria [OH] | 655 | 239 | 175 | 84 |
| Springfield [MA] | 640 | 319 | 400 | 230 |
| Bridgeport-Stamford-Norwalk [CT] | 595 | 187 | 230 | 117 |
| Milwaukee-Waukesha-West Allis [WI] | 595 | 256 | 210 | 119 |
| Virginia Beach-Norfolk-Newport News [VA-NC] | 585 | 218 | 215 | 137 |
| Dayton [OH] | 580 | 352 | 260 | 137 |
| Phoenix-Mesa-Scottsdale [AZ] | 580 | 284 | 105 | 65 |
| Minneapolis-St. Paul-Bloomington [MN-WI] | 545 | 194 | 160 | 80 |
| Richmond [VA] | 545 | 197 | 185 | 121 |
| Las Vegas-Henderson-Paradise [NV] | 530 | 258 | 145 | 116 |
| Oklahoma City [OK] | 500 | 304 | 155 | 155 |
| Detroit-Warren-Dearborn [MI] | 490 | 186 | 170 | 127 |
| Charlotte-Concord-Gastonia [NC-SC] | 485 | 197 | 125 | 84 |
| Riverside-San Bernardino-Ontario [CA] | 450 | 201 | 75 | 54 |
| Tucson [AZ] | 450 | 236 | 185 | 141 |
| Buffalo-Cheektowaga-Niagara Falls [NY] | 445 | 233 | 205 | 111 |
| Jacksonville [FL] | 445 | 271 | 160 | 135 |
| Providence-Warwick [RI-MA] | 445 | 236 | 210 | 163 |
| Raleigh [NC] | 445 | 259 | 125 | 81 |
| Louisville Jefferson County [KY] | 395 | 211 | 210 | 151 |
| Kansas City [MO-KS] | 370 | 223 | 115 | 82 |
| Hartford-West Hartford-East Hartford [CT] | 365 | 183 | 180 | 105 |
| Ann Arbor [MI] | 360 | 186 | 90 | 71 |
| Naples-Immokalee-Marco Island [FL] | 320 | 378 | 170 | 227 |
| Allentown-Bethlehem-Easton [PA-NJ] | 285 | 118 | 95 | 56 |
| Salt Lake City [UT] | 280 | 174 | 175 | 144 |
| Lansing-East Lansing [MI] | 275 | 138 | 145 | 113 |
| Worcester [MA-CT] | 275 | 149 | 130 | 90 |
| Reno [NV] | 270 | 187 | (D) | (D) |
| Durham-Chapel Hill [NC] | 265 | 136 | (D) | (D) |
| Albany-Schenectady-Troy [NY] | 250 | 157 | 45 | 62 |
| Madison [WI] | 250 | 132 | 95 | 80 |
| Omaha-Council Bluffs [NE-IA] | 240 | 207 | (D) | (D) |
| New Orleans-Metairie [LA] | 235 | 149 | 130 | 132 |
| New York-Newark-Jersey City [NY-NJ-PA] | 235 | 148 | (D) | (D) |
| Trenton [NJ] | 235 | 240 | 80 | 86 |
| Portland-South Portland [ME] | 230 | 263 | 130 | 147 |
| Salinas [CA] | 220 | 126 | 125 | 85 |
| Cincinnati [OH-KY-IN] | 210 | 113 | 70 | 44 |
| Nashville-Davidson-Murfreesboro-Franklin [TN] | 210 | 107 | 85 | 72 |
| Albuquerque [NM] | 195 | 133 | 100 | 73 |
| Fresno [CA] | 195 | 89 | 95 | 60 |
| Atlantic City-Hammonton [NJ] | 190 | 114 | 85 | 56 |
| Akron [OH] | 180 | 114 | 120 | 92 |
| Tulsa [OK] | 170 | 100 | 50 | 42 |
| Syracuse [NY] | 165 | 101 | 105 | 91 |
| Baton Rouge [LA] | 150 | 131 | (D) | (D) |
| Stockton-Lodi [CA] | 150 | 161 | (D) | (D) |
| Indianapolis-Carmel-Anderson [IN] | 130 | 81 | (D) | (D) |
| Oxnard-Thousand Oaks-Ventura [CA] | 120 | 109 | (D) | (D) |
| Vallejo-Fairfield [CA] | 120 | 141 | 35 | 41 |
| Greensboro-High Point [NC] | 110 | 109 | (D) | (D) |
| Anchorage [AK] | 105 | 139 | 50 | 62 |
| Santa Maria-Santa Barbara [CA] | 105 | 67 | 30 | 37 |
| Deltona-Daytona Beach-Ormond Beach [FL] | 90 | 58 | 35 | 26 |
| Lancaster [PA] | 65 | 54 | 45 | 35 |
| Memphis [TN-MS-AR] | 65 | 55 | (D) | (D) |
| Manchester-Nashua [NH] | 60 | 72 | 35 | 38 |
| Cape Coral-Fort Myers [FL] | 55 | 77 | (B) | - |
| Santa Rosa [CA] | 50 | 49 | (D) | (D) |
| Harrisburg-Carlisle [PA] | 40 | 41 | (B) | - |
| Urban Honolulu [HI] | 40 | 39 | (B) | - |
| Bakersfield [CA] | 25 | 27 | (D) | (D) |
| Grand Rapids-Wyoming [MI] | 25 | 21 | (B) | - |
| Colorado Springs [CO] | (D) | (D) | (B) | - |
| Des Moines-West Des Moines [IA] | (D) | (D) | (B) | - |
| Modesto [CA] | (D) | (D) | (B) | - |
| Spokane-Spokane Valley [WA] | (D) | (D) | (D) | (D) |