| Indiana | |||||||||
| TOTAL PERSONS | TOTAL HOUSING UNITS | PUBLIC SYSTEM | DRILLED WELL | DUG WELL | OTHER SOURCE | PUBLIC SEWER | SEPTIC TANK | OTHER MEANS | |
| Indiana | 5,544,159 | 2,246,046 | 1,664,281 | 516,561 | 47,725 | 17,479 | 1,525,810 | 703,032 | 17,204 |
| Adams County | 31,095 | 10,931 | 6,275 | 4,327 | 269 | 60 | 6,293 | 4,217 | 421 |
| Allen County | 300,836 | 122,923 | 104,242 | 17,990 | 649 | 42 | 107,630 | 14,721 | 572 |
| Bartholomew County | 63,657 | 25,432 | 17,625 | 6,443 | 1,163 | 201 | 16,527 | 8,655 | 250 |
| Benton County | 9,441 | 3,833 | 2,468 | 1,304 | 58 | 3 | 2,309 | 1,504 | 20 |
| Blackford County | 14,067 | 5,856 | 4,014 | 1,769 | 62 | 11 | 4,084 | 1,715 | 57 |
| Boone County | 38,147 | 14,516 | 8,599 | 5,591 | 325 | 1 | 8,241 | 6,206 | 69 |
| Brown County | 14,080 | 6,997 | 5,321 | 490 | 499 | 687 | 498 | 6,317 | 182 |
| Carroll County | 18,809 | 8,431 | 2,464 | 5,524 | 376 | 67 | 2,714 | 5,585 | 132 |
| Cass County | 38,413 | 15,633 | 8,837 | 6,401 | 335 | 60 | 8,854 | 6,657 | 122 |
| Clark County | 87,777 | 35,313 | 33,964 | 895 | 208 | 246 | 26,520 | 8,565 | 228 |
| Clay County | 24,705 | 10,606 | 7,168 | 2,283 | 1,047 | 108 | 5,029 | 5,406 | 171 |
| Clinton County | 30,974 | 12,100 | 7,712 | 4,103 | 279 | 6 | 7,894 | 4,129 | 77 |
| Crawford County | 9,914 | 4,374 | 2,875 | 474 | 270 | 755 | 868 | 3,202 | 304 |
| Daviess County | 27,533 | 10,985 | 7,967 | 2,358 | 515 | 145 | 6,437 | 4,256 | 292 |
| Dearborn County | 38,835 | 14,532 | 12,399 | 406 | 437 | 1,290 | 6,623 | 7,675 | 234 |
| Decatur County | 23,645 | 9,098 | 5,090 | 3,158 | 700 | 150 | 4,639 | 4,316 | 143 |
| DeKalb County | 35,324 | 13,601 | 8,073 | 5,286 | 230 | 12 | 8,276 | 5,207 | 118 |
| Delaware County | 119,659 | 48,793 | 35,041 | 12,852 | 877 | 23 | 37,832 | 10,676 | 285 |
| Dubois County | 36,616 | 13,964 | 12,550 | 456 | 537 | 421 | 7,985 | 5,672 | 307 |
| Elkhart County | 156,198 | 60,182 | 32,934 | 25,333 | 1,884 | 31 | 32,504 | 27,249 | 429 |
| Fayette County | 26,015 | 10,525 | 7,793 | 2,121 | 491 | 120 | 7,032 | 3,371 | 122 |
| Floyd County | 64,404 | 25,238 | 24,300 | 195 | 94 | 649 | 17,239 | 7,915 | 84 |
| Fountain County | 17,808 | 7,344 | 4,121 | 2,648 | 504 | 71 | 3,871 | 3,345 | 128 |
| Franklin County | 19,580 | 7,176 | 3,641 | 1,554 | 1,085 | 896 | 2,005 | 4,912 | 259 |
| Fulton County | 18,840 | 8,656 | 3,796 | 4,590 | 230 | 40 | 3,782 | 4,775 | 99 |
| Gibson County | 31,913 | 13,454 | 11,269 | 1,553 | 444 | 188 | 7,369 | 5,907 | 178 |
| Grant County | 74,169 | 29,904 | 21,199 | 8,275 | 393 | 37 | 21,476 | 8,272 | 156 |
| Greene County | 30,410 | 13,337 | 10,755 | 1,771 | 337 | 474 | 6,144 | 6,879 | 314 |
| Hamilton County | 108,936 | 41,074 | 27,610 | 12,667 | 766 | 31 | 29,259 | 11,716 | 99 |
| Hancock County | 45,527 | 16,495 | 6,804 | 8,989 | 665 | 37 | 7,257 | 9,096 | 142 |
| Harrison County | 29,890 | 11,456 | 9,404 | 1,280 | 98 | 674 | 1,982 | 9,214 | 260 |
| Hendricks County | 75,717 | 26,962 | 11,663 | 14,512 | 721 | 66 | 11,939 | 14,817 | 206 |
| Henry County | 48,139 | 19,835 | 11,986 | 7,279 | 559 | 11 | 11,201 | 8,524 | 110 |
| Howard County | 80,827 | 33,820 | 24,482 | 8,712 | 430 | 196 | 24,603 | 9,051 | 166 |
| Huntington County | 35,427 | 13,629 | 8,704 | 4,746 | 173 | 6 | 8,839 | 4,689 | 101 |
| Jackson County | 37,730 | 14,820 | 10,165 | 3,050 | 1,435 | 170 | 9,376 | 5,259 | 185 |
| Jasper County | 24,960 | 8,984 | 2,912 | 5,050 | 988 | 34 | 3,561 | 5,330 | 93 |
| Jay County | 21,512 | 8,905 | 5,024 | 3,755 | 119 | 7 | 5,133 | 3,648 | 124 |
| Jefferson County | 29,797 | 11,921 | 11,009 | 550 | 198 | 164 | 7,015 | 4,727 | 179 |
| Jennings County | 23,661 | 9,129 | 6,811 | 1,558 | 588 | 172 | 3,320 | 5,594 | 215 |
| Johnson County | 88,109 | 33,289 | 27,478 | 5,017 | 546 | 248 | 23,305 | 9,861 | 123 |
| Knox County | 39,884 | 16,730 | 13,859 | 2,473 | 334 | 64 | 10,620 | 6,000 | 110 |
| Kosciusko County | 65,294 | 30,516 | 9,082 | 20,361 | 916 | 157 | 9,938 | 20,161 | 417 |
| LaGrange County | 29,477 | 12,218 | 2,250 | 9,349 | 586 | 33 | 2,172 | 9,685 | 361 |
| Lake County | 475,594 | 183,014 | 165,736 | 16,406 | 765 | 107 | 164,183 | 18,274 | 557 |
| LaPorte County | 107,066 | 42,268 | 26,676 | 14,391 | 1,139 | 62 | 24,039 | 18,002 | 207 |
| Lawrence County | 42,836 | 17,587 | 15,675 | 1,723 | 91 | 98 | 8,450 | 8,945 | 192 |
| Madison County | 130,669 | 53,353 | 38,057 | 14,367 | 877 | 52 | 37,203 | 15,914 | 236 |
| Marion County | 797,159 | 349,403 | 319,180 | 28,130 | 2,036 | 57 | 314,308 | 34,475 | 620 |
| Marshall County | 42,182 | 16,820 | 7,651 | 8,645 | 519 | 5 | 7,631 | 9,064 | 125 |
| Martin County | 10,369 | 4,116 | 2,990 | 583 | 124 | 419 | 1,892 | 2,052 | 172 |
| Miami County | 36,897 | 14,639 | 8,329 | 6,041 | 236 | 33 | 8,404 | 6,161 | 74 |
| Monroe County | 108,978 | 41,948 | 39,820 | 1,558 | 182 | 388 | 29,152 | 12,566 | 230 |
| Montgomery County | 34,436 | 13,957 | 8,237 | 5,323 | 310 | 87 | 7,671 | 6,092 | 194 |
| Morgan County | 55,920 | 20,500 | 11,742 | 7,752 | 556 | 450 | 8,908 | 11,391 | 201 |
| Newton County | 13,551 | 5,276 | 2,303 | 2,565 | 403 | 5 | 1,439 | 3,784 | 53 |
| Noble County | 37,877 | 15,516 | 6,819 | 8,281 | 355 | 61 | 7,573 | 7,800 | 143 |
| Ohio County | 5,315 | 2,161 | 1,936 | 39 | 29 | 157 | 1,039 | 1,093 | 29 |
| Orange County | 18,409 | 7,732 | 4,442 | 2,437 | 233 | 620 | 3,610 | 3,811 | 311 |
| Owen County | 17,281 | 8,011 | 2,992 | 3,933 | 526 | 560 | 1,407 | 6,327 | 277 |
| Parke County | 15,410 | 7,189 | 3,533 | 3,171 | 348 | 137 | 1,851 | 5,190 | 148 |
| Perry County | 19,107 | 7,404 | 6,122 | 456 | 429 | 397 | 4,408 | 2,807 | 189 |
| Pike County | 12,509 | 5,487 | 4,650 | 557 | 128 | 152 | 1,439 | 3,822 | 226 |
| Porter County | 128,932 | 47,240 | 32,876 | 13,274 | 954 | 136 | 32,595 | 14,444 | 201 |
| Posey County | 25,968 | 10,401 | 5,376 | 4,427 | 424 | 174 | 4,656 | 5,523 | 222 |
| Pulaski County | 12,643 | 5,541 | 1,801 | 3,484 | 251 | 5 | 1,371 | 4,149 | 21 |
| Putnam County | 30,315 | 10,981 | 6,536 | 3,995 | 310 | 140 | 4,659 | 6,137 | 185 |
| Randolph County | 27,148 | 11,327 | 6,085 | 4,991 | 233 | 18 | 6,132 | 5,057 | 138 |
| Ripley County | 24,616 | 9,587 | 6,567 | 1,001 | 1,177 | 842 | 4,099 | 5,297 | 191 |
| Rush County | 18,129 | 7,014 | 3,278 | 3,455 | 245 | 36 | 3,111 | 3,839 | 64 |
| St Joseph County | 247,052 | 97,956 | 69,931 | 26,494 | 1,492 | 39 | 69,184 | 28,391 | 381 |
| Scott County | 20,991 | 8,078 | 7,493 | 193 | 354 | 38 | 4,095 | 3,917 | 66 |
| Shelby County | 40,307 | 15,654 | 7,345 | 7,732 | 523 | 54 | 7,501 | 7,935 | 218 |
| Spencer County | 19,490 | 7,636 | 5,278 | 1,699 | 339 | 320 | 2,970 | 4,511 | 155 |
| Starke County | 22,747 | 9,888 | 2,295 | 6,560 | 1,008 | 25 | 2,491 | 7,240 | 157 |
| Steuben County | 27,446 | 15,768 | 4,797 | 10,561 | 385 | 25 | 5,418 | 10,202 | 148 |
| Sullivan County | 18,993 | 8,487 | 6,900 | 877 | 627 | 83 | 4,679 | 3,694 | 114 |
| Switzerland County | 7,738 | 3,732 | 2,982 | 193 | 190 | 367 | 917 | 2,638 | 177 |
| Tippecanoe County | 130,598 | 48,134 | 38,231 | 9,386 | 461 | 56 | 38,026 | 9,975 | 133 |
| Tipton County | 16,119 | 6,427 | 3,174 | 2,982 | 269 | 2 | 2,839 | 3,494 | 94 |
| Union County | 6,976 | 2,813 | 1,458 | 909 | 347 | 99 | 1,224 | 1,575 | 14 |
| Vanderburgh County | 165,058 | 72,637 | 67,634 | 3,930 | 514 | 559 | 63,419 | 8,992 | 226 |
| Vermillion County | 16,773 | 7,288 | 5,853 | 936 | 421 | 78 | 2,478 | 4,697 | 113 |
| Vigo County | 106,107 | 44,203 | 32,581 | 9,273 | 1,992 | 357 | 30,907 | 12,953 | 343 |
| Wabash County | 35,069 | 13,394 | 8,174 | 4,991 | 219 | 10 | 7,885 | 5,419 | 90 |
| Warren County | 8,176 | 3,275 | 1,112 | 1,848 | 267 | 48 | 847 | 2,366 | 62 |
| Warrick County | 44,920 | 16,926 | 15,537 | 544 | 402 | 443 | 11,356 | 5,417 | 153 |
| Washington County | 23,717 | 9,520 | 6,470 | 2,097 | 309 | 644 | 3,313 | 6,025 | 182 |
| Wayne County | 71,951 | 29,586 | 22,080 | 6,773 | 631 | 102 | 21,146 | 8,233 | 207 |
| Wells County | 25,948 | 9,928 | 4,913 | 4,764 | 230 | 21 | 5,139 | 4,688 | 101 |
| White County | 23,265 | 11,875 | 4,867 | 6,760 | 239 | 9 | 4,470 | 7,294 | 111 |
| Whitley County | 27,651 | 10,852 | 4,032 | 6,576 | 206 | 38 | 4,061 | 6,682 | 109 |