USCIS has published statistics on naturalization applications in the US for the period Jan-Mar 2018.
- Houston and Dallas (TX) has the most number of pending applications, top 2 in the table.
- Over 740,000 Naturalization applications pending in the US, which is over 3 times the applications received .
- West Palm Beach and San Juan has the highest refusal rates of N-400 applications over 23%.
- About 218,222 N-400 applications received for the period.
| Applications Received | Approved | Denied | Pending | Refusal rate | ||
| Houston | HOU | 7580 | 3179 | 408 | 42028 | 5.38% |
| Dallas | DAL | 6684 | 4391 | 563 | 37870 | 8.42% |
| New York | NYC | 7326 | 5232 | 1079 | 30738 | 14.73% |
| San Francisco | SFR | 7592 | 6371 | 262 | 27380 | 3.45% |
| Chicago | CHI | 7645 | 5935 | 478 | 27087 | 6.25% |
| Newark | NEW | 8822 | 7483 | 1086 | 26030 | 12.31% |
| Queens | QNS | 6153 | 6231 | 833 | 25403 | 13.54% |
| Brooklyn | BNY | 5748 | 3574 | 570 | 24798 | 9.92% |
| Atlanta | ATL | 5550 | 4167 | 313 | 20872 | 5.64% |
| Baltimore | BAL | 5303 | 2867 | 250 | 20348 | 4.71% |
| Seattle | SEA | 4750 | 2187 | 195 | 18464 | 4.11% |
| Miami | MIA | 3191 | 1512 | 426 | 17935 | 13.35% |
| Los Angeles County | LAC | 4696 | 3982 | 747 | 17513 | 15.91% |
| Philadelphia | PHI | 5082 | 4304 | 540 | 17226 | 10.63% |
| St. Paul | SPM | 3475 | 2166 | 276 | 16637 | 7.94% |
| Los Angeles | LOS | 4566 | 4285 | 422 | 16553 | 9.24% |
| Washington | WAS | 5154 | 3709 | 425 | 16463 | 8.25% |
| Santa Ana | SAA | 4111 | 2889 | 809 | 14106 | 19.68% |
| Oakland Park | OKL | 3180 | 2256 | 520 | 13972 | 16.35% |
| San Fernando Valley | SFV | 3831 | 3079 | 455 | 13391 | 11.88% |
| Phoenix | PHO | 2934 | 1966 | 286 | 13091 | 9.75% |
| Kendall | KND | 3417 | 2767 | 258 | 12459 | 7.55% |
| San Jose | SNJ | 4226 | 3560 | 304 | 11236 | 7.19% |
| Orlando | ORL | 3014 | 3014 | 461 | 10760 | 15.30% |
| San Antonio | SNA | 3697 | 2760 | 373 | 10610 | 10.09% |
| San Diego | SND | 4009 | 3916 | 399 | 10575 | 9.95% |
| Sacramento | SAC | 3698 | 3645 | 345 | 10484 | 9.33% |
| Long Island | LNY | 2879 | 3588 | 625 | 10412 | 21.71% |
| Denver | DEN | 2499 | 1724 | 349 | 10345 | 13.97% |
| Boston | BOS | 4656 | 3927 | 369 | 10285 | 7.93% |
| Detroit | DET | 4326 | 3657 | 617 | 9841 | 14.26% |
| Memphis | MEM | 2058 | 1406 | 154 | 8499 | 7.48% |
| San Bernardino | SBD | 4528 | 4293 | 666 | 8396 | 14.71% |
| Hialeah | HIA | 3433 | 3229 | 671 | 8234 | 19.55% |
| Las Vegas | LVG | 2173 | 1588 | 154 | 8203 | 7.09% |
| Tampa | TAM | 3151 | 3516 | 467 | 8030 | 14.82% |
| Hartford | HAR | 2692 | 2210 | 253 | 7897 | 9.40% |
| Fresno | FRE | 2579 | 3023 | 299 | 7047 | 11.59% |
| El Paso | ELP | 1360 | 1202 | 178 | 6652 | 13.09% |
| West Palm Beach | WPB | 2288 | 2912 | 535 | 6361 | 23.38% |
| Fort Meyers | OFM | 1184 | 871 | 114 | 5989 | 9.63% |
| Salt Lake City | SLC | 1389 | 840 | 81 | 5530 | 5.83% |
| Montgomery | MGA | 983 | 101 | 46 | 5364 | 4.68% |
| Charlotte | CLT | 2206 | 1671 | 285 | 5342 | 12.92% |
| Harlingen | HLG | 776 | 841 | 136 | 5245 | 17.53% |
| Mount Laurel | MTL | 2172 | 2205 | 212 | 4998 | 9.76% |
| Portland | POO | 2317 | 2560 | 112 | 4850 | 4.83% |
| Norfolk | NOR | 1471 | 799 | 105 | 4409 | 7.14% |
| Lawrence | LAW | 2102 | 1724 | 357 | 4398 | 16.98% |
| Milwaukee | MIL | 1186 | 1066 | 73 | 4121 | 6.16% |
| New Orleans | NOL | 981 | 725 | 83 | 4032 | 8.46% |
| Raleigh | RAL | 1982 | 1677 | 84 | 4005 | 4.24% |
| Des Moines | DSM | 970 | 1114 | 78 | 3658 | 8.04% |
| Indianapolis | INP | 1827 | 1467 | 156 | 3315 | 8.54% |
| Buffalo | BUF | 1610 | 1189 | 185 | 3279 | 11.49% |
| Jacksonville | JAC | 1377 | 1429 | 145 | 3191 | 10.53% |
| Columbus | CLM | 1617 | 1437 | 102 | 3191 | 6.31% |
| Honolulu | HHW | 1018 | 682 | 87 | 2956 | 8.55% |
| Omaha | OMA | 1041 | 507 | 141 | 2497 | 13.54% |
| Louisville | LOU | 1162 | 973 | 160 | 2320 | 13.77% |
| Kansas City | KAN | 1282 | 1070 | 115 | 2300 | 8.97% |
| Oklahoma City | OKC | 1043 | 1107 | 115 | 2296 | 11.03% |
| St. Louis | STL | 890 | 794 | 44 | 2038 | 4.94% |
| Cleveland | CLE | 1216 | 1093 | 75 | 1876 | 6.17% |
| Pittsburgh | PIT | 809 | 472 | 59 | 1755 | 7.29% |
| Providence | PRO | 839 | 560 | 135 | 1753 | 16.09% |
| Tucson | TUC | 671 | 833 | 83 | 1496 | 12.37% |
| Cincinnati | CIN | 933 | 926 | 89 | 1456 | 9.54% |
| San Juan | SAJ | 393 | 481 | 115 | 1426 | 29.26% |
| Wichita | WIC | 436 | 243 | 46 | 1333 | 10.55% |
| Albany | ALB | 582 | 489 | 70 | 1242 | 12.03% |
| Charleston | CHL | 683 | 690 | 90 | 1095 | 13.18% |
| Reno | REN | 324 | 273 | 37 | 993 | 11.42% |
| Fort Smith | FSA | 416 | 512 | 25 | 975 | 6.01% |
| Anchorage | ANC | 288 | 93 | 25 | 936 | 8.68% |
| Greer | GRR | 528 | 336 | 36 | 915 | 6.82% |
| Boise | BOI | 503 | 493 | 41 | 872 | 8.15% |
| Albuquerque | ABQ | 509 | 610 | 53 | 830 | 10.41% |
| Imperial | IMP | 248 | 233 | 58 | 825 | 23.39% |
| Yakima | YAK | 526 | 675 | 25 | 722 | 4.75% |
| Manchester | MAN | 471 | 422 | 35 | 662 | 7.43% |
| Spokane | SPO | 292 | 205 | 22 | 590 | 7.53% |
| Portland | POM | 277 | 171 | D | 567 | |
| Agana | AGA | 225 | 257 | 19 | 436 | 8.44% |
| Charlotte Amalie | CHA | 88 | 52 | D | 388 | |
| St. Albans | STA | 207 | 203 | 12 | 347 | 5.80% |
| Christiansted | CHR | 20 | 16 | – | 169 | |
| Helena | HEL | 96 | 95 | D | 160 | |
| 218222 | 747374 |
