Oklahoma Water Quality Rankings
358 cities ranked · Data from EPA SDWIS
Oklahoma water quality overview
Oklahoma's drinking water quality is fair overall, with a state average score of 61.3 out of 100 — 12.9 points below the national average of 74.2. The median city score is 52, reflecting how water quality is distributed across the state's 358 ranked cities. 54% of cities scored a D or F, pointing to significant water quality challenges across much of the state. 122 cities did earn an A or B grade, showing that strong systems do exist. PFAS "forever chemicals" were detected in 85 of 358 cities (24%). Of those, 12 cities exceed the 2024 EPA maximum contaminant levels — a health concern requiring action. 4 cities have lead levels exceeding the EPA action level of 15 ppb, typically a sign of aging lead service lines or lead solder in older plumbing. Residents in these areas should use an NSF 53-certified filter. 351 cities have recorded health-based violations with the EPA — meaning contaminant levels exceeded safe limits or required testing was missed. Use the table below to find your city's specific record.
How Oklahoma cities scored
Score distribution by range
State vs national average
Water quality across Oklahoma
Each dot is a city, colored by grade. Size reflects population served. Click any city to view its full report.
Top & bottom cities in Oklahoma
Best 10 cities
All 358 cities in Oklahoma
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Thomas | A+ | 96.3 | 1K | 27 | Unresolved | |
| 2 | Fort Sill | A | 94.8 | 23K | 8 | Health Unresolved | |
| 3 | Thackerville | A | 94.4 | 2K | 32 | Health Unresolved | |
| 4 | Sayre | A | 94 | 4K | 14 | Health Unresolved | |
| 5 | Marietta | A | 93.6 | 3K | 14 | Health Unresolved | |
| 6 | Sentinel | A | 93.4 | 859 | 11 | Health Unresolved | |
| 7 | Hobart | A | 93.2 | 4K | 16 | Health Unresolved | |
| 8 | Seminole | A | 92.8 | 7K | 53 | Health | |
| 9 | Rush Springs | A | 92.5 | 1K | 68 | Health Unresolved | |
| 10 | Bokchito | A | 91.5 | 564 | 37 | Health Unresolved | |
| 11 | Texhoma | A | 91.4 | 935 | 32 | Unresolved | |
| 12 | Glenpool | A | 91.3 | 13K | 23 | Health Unresolved | |
| 13 | Ketchum | A | 90.8 | 6K | 45 | Health Unresolved | |
| 14 | Verden | A | 90.6 | 659 | 28 | Health Unresolved | |
| 15 | Bison | A | 90.1 | 2K | 34 | Health Unresolved | |
| 16 | Lahoma | A- | 89.9 | 577 | 5 | Unresolved | |
| 17 | Dibble | A- | 89.6 | 550 | 20 | Health Unresolved | |
| 18 | Newcastle | A- | 89.5 | 8K | 29 | Health Unresolved | |
| 19 | Drumright | A- | 89.4 | 3K | 23 | Health Unresolved | |
| 20 | Luther | A- | 89.1 | 650 | 76 | Health Unresolved | |
| 21 | Stratford | A- | 88.3 | 2K | 17 | Health Unresolved | |
| 22 | Sperry | A- | 88.3 | 1K | 16 | Unresolved | |
| 23 | Meeker | A- | 88.3 | 1K | 51 | Health Unresolved | |
| 24 | Achille | A- | 88.2 | 506 | 30 | Health Unresolved | |
| 25 | Chelsea | A- | 87.8 | 2K | 53 | Health Unresolved | |
| 26 | Mannsville | A- | 87.8 | 587 | 72 | Health Unresolved | |
| 27 | Cushing | A- | 87.6 | 8K | 26 | Health Unresolved | |
| 28 | Seiling | A- | 87.1 | 860 | 37 | Health Unresolved | |
| 29 | Catoosa | A- | 87 | 3K | 41 | Health Unresolved | |
| 30 | Roland | A- | 86.9 | 3K | 67 | Health Unresolved | |
| 31 | Lindsay | A- | 86.6 | 4K | 24 | Health Unresolved | |
| 32 | Healdton | A- | 86.5 | 3K | 55 | Health Unresolved | |
| 33 | Burns Flat | A- | 86.5 | 2K | 50 | Health Unresolved | |
| 34 | Allen | A- | 86.4 | 3K | 14 | Health Unresolved | |
| 35 | Cashion | A- | 86.3 | 900 | 11 | Health Unresolved | |
| 36 | Depew | A- | 86.2 | 555 | 112 | Health Unresolved | |
| 37 | Fort Cobb | A- | 86.1 | 667 | 17 | Health Unresolved | |
| 38 | Sulphur | A- | 86 | 11K | 17 | Health Unresolved | |
| 39 | Elmore City | A- | 86 | 2K | 68 | Health Unresolved | |
| 40 | South Coffeyville | A- | 86 | 790 | 18 | Health Unresolved | |
| 41 | Sterling | A- | 85.8 | 762 | 31 | Health Unresolved | |
| 42 | Purcell | A- | 85.7 | 7K | 20 | Health Unresolved | |
| 43 | Hooker | A- | 85.7 | 2K | 58 | Unresolved | |
| 44 | Waukomis | A- | 85.7 | 1K | 34 | Health Unresolved | |
| 45 | Carney | A- | 85.6 | 649 | 93 | Health Unresolved | |
| 46 | Guymon | A- | 85.5 | 11K | 20 | Health Unresolved | |
| 47 | Arapaho | A- | 85.4 | 748 | 20 | Health Unresolved | |
| 48 | Waynoka | A- | 85 | 993 | 54 | Health Unresolved | |
| 49 | Maud | B+ | 84.9 | 1K | 31 | Health Unresolved | |
| 50 | Braggs | B+ | 84.8 | 1K | 18 | Health Unresolved | |
| 51 | Ninnekah | B+ | 84.7 | 2K | 21 | Health Unresolved | |
| 52 | Cherokee | B+ | 84.4 | 2K | 68 | Health Unresolved | |
| 53 | Canton | B+ | 83.5 | 750 | 68 | Health Unresolved | |
| 54 | Minco | B+ | 83.4 | 2K | 22 | Health Unresolved | |
| 55 | Arkoma | B+ | 83 | 2K | 26 | Health Unresolved | |
| 56 | Lone Grove | B+ | 82.8 | 5K | 76 | Health Unresolved | |
| 57 | Jones | B+ | 82.8 | 2K | 17 | Health Unresolved | |
| 58 | Kingston | B+ | 82.6 | 2K | 20 | Health Unresolved | |
| 59 | Coleman | B+ | 82.6 | 600 | 85 | Health Unresolved | |
| 60 | Tinker Afb | B+ | 82.5 | 2K | 6 | Unresolved | |
| 61 | Goldsby | B+ | 82.5 | 2K | 58 | Health Unresolved | |
| 62 | Salina | B+ | 82.5 | 1K | 89 | Health Unresolved | |
| 63 | Webbers Falls | B+ | 82.5 | 1K | 93 | Health Unresolved | |
| 64 | Velma | B+ | 82.5 | 960 | 17 | Health Unresolved | |
| 65 | Hammon | B+ | 82.4 | 568 | 13 | Health Unresolved | |
| 66 | Cement | B+ | 82.3 | 530 | 86 | Health Unresolved | |
| 67 | Stillwell | B+ | 82.1 | 1K | 24 | Unresolved | |
| 68 | Commerce | B+ | 81.9 | 3K | 77 | Health Unresolved | |
| 69 | Vici | B+ | 81.9 | 668 | 43 | Health Unresolved | |
| 70 | Agra | B+ | 81.7 | 3K | 24 | Health Unresolved | |
| 71 | Carter | B+ | 81.7 | 2K | 63 | Health Unresolved | |
| 72 | Bethany | B+ | 81.6 | 20K | 34 | Health PFAS Unresolved | |
| 73 | Colony | B+ | 81.6 | 1K | 9 | Health Unresolved | |
| 74 | Mountain View | B+ | 81.3 | 880 | 22 | Health Unresolved | |
| 75 | Covington | B+ | 81.2 | 553 | 14 | Health Unresolved | |
| 76 | Langley | B+ | 80.7 | 950 | 22 | Health Unresolved | |
| 77 | Adair | B+ | 80.5 | 4K | 61 | Health Unresolved | |
| 78 | Midwest City | B+ | 80.3 | 56K | 30 | Health Unresolved | |
| 79 | Bowlegs | B+ | 80.3 | 3K | 33 | Health Unresolved | |
| 80 | Wilson | B+ | 80 | 2K | 30 | Health Unresolved | |
| 81 | Roff | B | 79.9 | 800 | 31 | Health Unresolved | |
| 82 | Bixby | B | 79.7 | 19K | 14 | Health Unresolved | |
| 83 | Cyril | B | 79.7 | 1K | 18 | Health Unresolved | |
| 84 | Dearing | B | 79.7 | 804 | 21 | Health Unresolved | |
| 85 | Corn | B | 79.5 | 500 | 55 | Health Unresolved | |
| 86 | Fittstown | B | 79.2 | 896 | 23 | Health Unresolved | |
| 87 | Tyrone | B | 78.7 | 880 | 78 | Health Unresolved | |
| 88 | Custer City | B | 78.6 | 1K | 7 | Health Unresolved | |
| 89 | Byron | B | 78.5 | 1K | 49 | Health Unresolved | |
| 90 | Binger | B | 78.3 | 708 | 67 | Health Unresolved | |
| 91 | Geronimo | B | 78 | 1K | 23 | Health Unresolved | |
| 92 | Beaver | B | 77.6 | 2K | 43 | Health Unresolved | |
| 93 | Gans | B | 77.5 | 600 | 40 | Health Unresolved | |
| 94 | Ringling | B | 77.3 | 1K | 46 | Health Unresolved | |
| 95 | Stigler | B | 77 | 3K | 47 | Health Unresolved | |
| 96 | Carnegie | B | 76.7 | 6K | 26 | Health Unresolved | |
| 97 | Leedey | B | 76.7 | 1K | 35 | Health Unresolved | |
| 98 | Marlow | B | 76.5 | 11K | 30 | Health Unresolved | |
| 99 | Forgan | B | 76.4 | 532 | 25 | Health Unresolved | |
| 100 | Shattuck | B | 76 | 1K | 45 | Health Unresolved | |
| 101 | Disney | B | 75.6 | 2K | 53 | Health Unresolved | |
| 102 | Sand Springs | B | 75.3 | 30K | 72 | Health Unresolved | |
| 103 | Hennessey | B- | 74.6 | 2K | 92 | Health Unresolved | |
| 104 | Indianola | B- | 74.6 | 2K | 32 | Health Unresolved | |
| 105 | Porum | B- | 74.5 | 5K | 63 | Health Unresolved | |
| 106 | Chouteau | B- | 74.4 | 8K | 52 | Health PFAS Unresolved | |
| 107 | Morrison | B- | 74.4 | 950 | 33 | Health Unresolved | |
| 108 | Oologah | B- | 74.2 | 8K | 75 | Health Unresolved | |
| 109 | Tonkawa | B- | 74.1 | 4K | 43 | Health Unresolved | |
| 110 | Howe | B- | 73.9 | 2K | 39 | Health Unresolved | |
| 111 | Monroe | B- | 73.6 | 2K | 69 | Health Unresolved | |
| 112 | Skiatook | B- | 73.2 | 15K | 112 | Health Unresolved | |
| 113 | Butler | B- | 73 | 782 | 34 | Health Unresolved | |
| 114 | Kellyville | B- | 72.9 | 6K | 38 | Health Unresolved | |
| 115 | Garber | B- | 72.5 | 2K | 116 | Health Unresolved | |
| 116 | Jenks | B- | 72.4 | 30K | 58 | Health Unresolved | |
| 117 | Marshall | B- | 72.4 | 2K | 42 | Health Unresolved | |
| 118 | Alva | B- | 72.2 | 6K | 38 | Health Unresolved | |
| 119 | Warner | B- | 71.5 | 2K | 142 | Health Unresolved | |
| 120 | Ada | B- | 71.4 | 32K | 80 | Health Unresolved | |
| 121 | Mannford | B- | 71.3 | 6K | 144 | Health Unresolved | |
| 122 | Fort Towson | B- | 70.4 | 611 | 85 | Health Unresolved | |
| 123 | Mangum | C+ | 69.7 | 3K | 32 | Health Unresolved | |
| 124 | Mustang | C+ | 69.2 | 19K | 29 | Health Unresolved | |
| 125 | Stonewall | C+ | 68.4 | 2K | 35 | Health Unresolved | |
| 126 | Crescent | C+ | 68.2 | 3K | 143 | Health Unresolved | |
| 127 | Colbert | C+ | 68 | 2K | 48 | Health Unresolved | |
| 128 | Cordell | C+ | 67.6 | 3K | 71 | Health Unresolved | |
| 129 | Paoli | C+ | 67.3 | 610 | 68 | Health Unresolved | |
| 130 | Tupelo | C+ | 67.2 | 527 | 120 | Health Unresolved | |
| 131 | Pond Creek | C+ | 67 | 1K | 46 | Health Unresolved | |
| 132 | Collinsville | C+ | 66.8 | 31K | 54 | Health Unresolved | |
| 133 | Crowder | C+ | 66.5 | 2K | 135 | Health Unresolved | |
| 134 | Mutual | C+ | 66.3 | 755 | 72 | Health Unresolved | |
| 135 | Watonga | C+ | 66 | 3K | 38 | Health Unresolved | |
| 136 | Twin Oaks | C+ | 65.4 | 750 | 28 | Health Unresolved | |
| 137 | Earlsboro | C+ | 65.2 | 6K | 53 | Health PFAS Unresolved | |
| 138 | Owasso | C+ | 65.1 | 23K | 71 | Health Unresolved | |
| 139 | Goodwell | C+ | 65 | 2K | 136 | Health Unresolved | |
| 140 | Stilwell | C | 64.5 | 7K | 64 | Health Unresolved | |
| 141 | Savanna | C | 63.4 | 800 | 43 | Health Unresolved | |
| 142 | Bernice | C | 63.4 | 504 | 122 | Health Unresolved | |
| 143 | Wayne | C | 63.3 | 3K | 151 | Health Unresolved | |
| 144 | Smithville | C | 63.2 | 600 | 30 | Health Unresolved | |
| 145 | Muldrow | C | 62.6 | 6K | 77 | Health Unresolved | |
| 146 | Laverne | C | 62.4 | 1K | 96 | Health Unresolved | |
| 147 | Dewar | C | 62.3 | 917 | 45 | Health Unresolved | |
| 148 | Alex | C | 62.2 | 635 | 53 | Health Unresolved | |
| 149 | Spencer | C | 61.9 | 4K | 152 | Health Unresolved | |
| 150 | Washington | C | 61.7 | 600 | 60 | Health Unresolved | |
| 151 | Grant | C | 61.6 | 2K | 69 | Health Unresolved | |
| 152 | Fletcher | C | 61.5 | 1K | 239 | Health Unresolved | |
| 153 | Langston | C | 61.4 | 2K | 104 | Health Unresolved | |
| 154 | Oakhurst | C | 61.3 | 575 | 72 | Health Unresolved | |
| 155 | Panama | C | 60.5 | 1K | 46 | Health Unresolved | |
| 156 | Davis | C | 60.2 | 3K | 41 | Health Unresolved | |
| 157 | Dill City | C- | 59.8 | 526 | 32 | Health Unresolved | |
| 158 | Stuart | C- | 59.2 | 1K | 203 | Health Unresolved | |
| 159 | Pauls Valley | C- | 58.6 | 9K | 129 | Health Unresolved | |
| 160 | Apache | C- | 57.2 | 2K | 84 | Health Unresolved | |
| 161 | Caddo | C- | 56.9 | 3K | 203 | Health Unresolved | |
| 162 | Hydro | C- | 56.8 | 1K | 69 | Health Unresolved | |
| 163 | Inola | C- | 56.3 | 3K | 74 | Health Unresolved | |
| 164 | Piedmont | C- | 55.8 | 8K | 104 | Health Unresolved | |
| 165 | Gould | C- | 55.7 | 1K | 114 | Health Unresolved | |
| 166 | Medford | C- | 55.2 | 2K | 69 | Health Unresolved | |
| 167 | Okeene | D+ | 54.7 | 2K | 181 | Health Unresolved | |
| 168 | Marland | D+ | 54.1 | 517 | 86 | Health Unresolved | |
| 169 | Anadarko | D+ | 54 | 7K | 122 | Health Unresolved | |
| 170 | Mead | D+ | 54 | 6K | 151 | Health Unresolved | |
| 171 | Oktaha | D+ | 54 | 2K | 102 | Health Unresolved | |
| 172 | Krebs | D+ | 54 | 2K | 102 | Health Unresolved | |
| 173 | Granite | D+ | 53.8 | 2K | 156 | Health Unresolved | |
| 174 | Frederick | D+ | 52.7 | 4K | 124 | Health Unresolved | |
| 175 | Pocola | D+ | 52.5 | 5K | 64 | Health Unresolved | |
| 176 | Pawhuska | D+ | 52.5 | 4K | 62 | Health Unresolved | |
| 177 | Haileyville | D+ | 52.4 | 889 | 95 | Health Unresolved | |
| 178 | Gore | D+ | 52.3 | 3K | 86 | Health Unresolved | |
| 179 | Antlers | D+ | 52 | 7K | 255 | Health Unresolved | |
| 180 | Hartshorne | D+ | 52 | 7K | 159 | Health Unresolved | |
| 181 | Hugo | D+ | 52 | 6K | 276 | Health Unresolved | |
| 182 | Hollis | D+ | 52 | 3K | 207 | Health Unresolved | |
| 183 | Prague | D+ | 52 | 2K | 873 | Health Unresolved | |
| 184 | Erick | D+ | 52 | 2K | 102 | Health Unresolved | |
| 185 | Mooreland | D+ | 52 | 2K | 328 | Health Unresolved | |
| 186 | Boise City | D+ | 52 | 1K | 138 | Health Unresolved | |
| 187 | Boley | D+ | 52 | 1K | 697 | Health Unresolved | |
| 188 | Canute | D+ | 52 | 524 | 162 | Health Unresolved | |
| 189 | Sallisaw | D+ | 51.8 | 25K | 112 | Health Unresolved | |
| 190 | Council Hill | D+ | 51.3 | 1K | 240 | Health Unresolved | |
| 191 | Chattanooga | D+ | 51.2 | 2K | 154 | Health Unresolved | |
| 192 | Spiro | D+ | 51.1 | 13K | 223 | Health Unresolved | |
| 193 | Stroud | D+ | 51 | 3K | 186 | Health Unresolved | |
| 194 | Wainwright | D+ | 51 | 3K | 118 | Health Unresolved | |
| 195 | Waurika | D+ | 51 | 2K | 212 | Health Unresolved | |
| 196 | Schulter | D+ | 51 | 2K | 111 | Health Unresolved | |
| 197 | Terlton | D+ | 51 | 2K | 99 | Health Unresolved | |
| 198 | Vian | D+ | 51 | 1K | 688 | Health Unresolved | |
| 199 | Maysville | D+ | 51 | 1K | 257 | Health Unresolved | |
| 200 | Temple | D+ | 51 | 1K | 121 | Health Unresolved | |
| 201 | Grandfield | D+ | 51 | 1K | 214 | Health Unresolved | |
| 202 | Ryan | D+ | 51 | 800 | 190 | Health Unresolved | |
| 203 | Oilton | D+ | 50.8 | 1K | 693 | Health Unresolved | |
| 204 | Mounds | D+ | 50.5 | 10K | 264 | Health Unresolved | |
| 205 | Holdenville | D+ | 50.5 | 6K | 222 | Health Unresolved | |
| 206 | Stringtown | D+ | 50.5 | 2K | 169 | Health Unresolved | |
| 207 | Okay | D+ | 50.5 | 2K | 107 | Health Unresolved | |
| 208 | Wewoka | D+ | 50.3 | 4K | 477 | Health Unresolved | |
| 209 | Duncan | D+ | 50.2 | 23K | 167 | Health Unresolved | |
| 210 | Clinton | D+ | 50.2 | 9K | 105 | Health Unresolved | |
| 211 | Blackwell | D+ | 50.2 | 9K | 101 | Health Unresolved | |
| 212 | Hastings | D+ | 50.2 | 8K | 283 | Health Unresolved | |
| 213 | Atoka | D+ | 50.1 | 7K | 380 | Health Unresolved | |
| 214 | Big Cabin | D+ | 50.1 | 4K | 68 | Health Unresolved | |
| 215 | Walters | D+ | 50 | 6K | 136 | Health Unresolved | |
| 216 | Elgin | D+ | 50 | 5K | 141 | Health Unresolved | |
| 217 | Calera | D+ | 50 | 3K | 49 | Health Unresolved | |
| 218 | Hinton | D+ | 50 | 3K | 267 | Health Unresolved | |
| 219 | Welch | D+ | 50 | 2K | 279 | Health Unresolved | |
| 220 | Buffalo | D+ | 50 | 1K | 256 | Health Unresolved | |
| 221 | Osage | D+ | 50 | 540 | 574 | Health Unresolved | |
| 222 | Wilburton | D | 49.5 | 6K | 89 | Health Unresolved | |
| 223 | Heavener | D | 49.5 | 3K | 90 | Health Unresolved | |
| 224 | Colcord | D | 49.5 | 2K | 112 | Health Unresolved | |
| 225 | El Reno | D | 49.3 | 19K | 175 | Health Unresolved | |
| 226 | Amber | D | 49.2 | 4K | 198 | Health Unresolved | |
| 227 | Morris | D | 49 | 6K | 300 | Health Unresolved | |
| 228 | Locust Grove | D | 49 | 5K | 493 | Health Unresolved | |
| 229 | Westville | D | 49 | 5K | 277 | Health Unresolved | |
| 230 | Pawnee | D | 49 | 4K | 577 | Health Unresolved | |
| 231 | Chandler | D | 49 | 4K | 247 | Health Unresolved | |
| 232 | Comanche | D | 49 | 3K | 148 | Health Unresolved | |
| 233 | Wetumka | D | 49 | 3K | 241 | Health Unresolved | |
| 234 | Hominy | D | 49 | 3K | 390 | Health Unresolved | |
| 235 | Porter | D | 49 | 2K | 72 | Health Unresolved | |
| 236 | Kansas | D | 49 | 2K | 237 | Health Unresolved | |
| 237 | Garvin | D | 49 | 2K | 127 | Health Unresolved | |
| 238 | Boswell | D | 49 | 2K | 283 | Health Unresolved | |
| 239 | Fairfax | D | 49 | 2K | 405 | Health Unresolved | |
| 240 | Whitesboro | D | 49 | 2K | 132 | Health Unresolved | |
| 241 | Tipton | D | 49 | 1K | 276 | Health Unresolved | |
| 242 | Red Oak | D | 49 | 993 | 272 | Health Unresolved | |
| 243 | Cheyenne | D | 49 | 978 | 153 | Health Unresolved | |
| 244 | Kiowa | D | 49 | 856 | 322 | Health Unresolved | |
| 245 | Duke | D | 49 | 743 | 131 | Health Unresolved | |
| 246 | Copan | D | 49 | 733 | 131 | Health Unresolved | |
| 247 | Union City | D | 49 | 618 | 39 | Health Unresolved | |
| 248 | Olustee | D | 49 | 607 | 94 | Health Unresolved | |
| 249 | Keota | D | 49 | 564 | 83 | Health Unresolved | |
| 250 | Hennepin | D | 49 | 500 | 56 | Health Unresolved | |
| 251 | Poteau | D | 48.8 | 10K | 150 | Health Unresolved | |
| 252 | Harrah | D | 48.8 | 4K | 451 | Health Unresolved | |
| 253 | Bristow | D | 48.8 | 4K | 288 | Health Unresolved | |
| 254 | Sapulpa | D | 48.7 | 29K | 148 | Health Unresolved | |
| 255 | Wister | D | 48.7 | 5K | 284 | Health Unresolved | |
| 256 | Elk City | D | 48.6 | 12K | 183 | Health Unresolved | |
| 257 | Tulsa | D | 48.5 | 416K | 401 | Health Unresolved | |
| 258 | Perry | D | 48.5 | 8K | 402 | Health Unresolved | |
| 259 | Okemah | D | 48.5 | 7K | 123 | Health Unresolved | |
| 260 | Shidler | D | 48.5 | 2K | 317 | Health Unresolved | |
| 261 | Altus | D | 48.2 | 24K | 276 | Health Unresolved | |
| 262 | Wyandotte | D | 48.2 | 2K | 617 | Health Unresolved | |
| 263 | Perkins | D | 48.1 | 3K | 124 | Health Unresolved | |
| 264 | Mcloud | D | 48 | 3K | 2924 | Health Unresolved | |
| 265 | Grove | D | 47.8 | 8K | 772 | Health Unresolved | |
| 266 | Tuttle | D | 47.8 | 5K | 3294 | Health Unresolved | |
| 267 | Muskogee | D | 47.5 | 44K | 324 | Health Unresolved | |
| 268 | Valliant | D | 47.5 | 2K | 98 | Health Unresolved | |
| 269 | Vinita | D | 47.2 | 12K | 288 | Health Unresolved | |
| 270 | Weatherford | D | 47.2 | 11K | 411 | Health Unresolved | |
| 271 | Noble | D | 47.2 | 6K | 495 | Health Unresolved | |
| 272 | Kingfisher | D | 47.2 | 5K | 346 | Health Unresolved | |
| 273 | Nichols Hills | D | 47.2 | 4K | 96 | Health Unresolved | |
| 274 | Fairland | D | 47.2 | 3K | 193 | Health Unresolved | |
| 275 | Tishomingo | D | 47 | 7K | 139 | Health Unresolved | |
| 276 | Quinton | D | 47 | 4K | 99 | Health Unresolved | |
| 277 | Barnsdall | D | 47 | 2K | 589 | Health Unresolved | |
| 278 | Snyder | D | 47 | 2K | 245 | Health Unresolved | |
| 279 | Beggs | D | 47 | 1K | 237 | Health Unresolved | |
| 280 | Quapaw | D | 47 | 1K | 155 | Health Unresolved | |
| 281 | Weleetka | D | 47 | 998 | 294 | Health Unresolved | |
| 282 | Davenport | D | 47 | 881 | 143 | Health Unresolved | |
| 283 | Glencoe | D | 47 | 628 | 127 | Health Unresolved | |
| 284 | Idabel | D | 46.9 | 7K | 183 | Health Unresolved | |
| 285 | Miami | D | 46.8 | 14K | 281 | Health Unresolved | |
| 286 | Calumet | D | 46.7 | 1K | 232 | Health Unresolved | |
| 287 | Durant | D | 46.6 | 24K | 147 | Health Unresolved | |
| 288 | Woodward | D | 46.6 | 16K | 195 | Health Unresolved | |
| 289 | Blanchard | D | 46.6 | 3K | 91 | Health Lead Unresolved | |
| 290 | Checotah | D | 46.5 | 11K | 503 | Health Unresolved | |
| 291 | Haworth | D | 46.5 | 4K | 132 | Health Unresolved | |
| 292 | Shawnee | D | 46 | 32K | 269 | Health Unresolved | |
| 293 | Hulbert | D | 46 | 8K | 348 | Health Unresolved | |
| 294 | Fairview | D | 46 | 4K | 182 | Health Unresolved | |
| 295 | Blair | D | 46 | 4K | 80 | Health Unresolved | |
| 296 | Preston | D | 46 | 2K | 121 | Health Unresolved | |
| 297 | Yale | D | 46 | 2K | 208 | Health Unresolved | |
| 298 | Haskell | D | 46 | 2K | 203 | Health Unresolved | |
| 299 | Konawa | D | 46 | 1K | 297 | Health Unresolved | |
| 300 | Geary | D | 46 | 1K | 181 | Health Unresolved | |
| 301 | Albion | D | 46 | 959 | 115 | Health Unresolved | |
| 302 | Hodgen | D | 46 | 923 | 73 | Health Unresolved | |
| 303 | Hendrix | D | 46 | 820 | 122 | Health Unresolved | |
| 304 | Wright City | D | 46 | 792 | 66 | Health Unresolved | |
| 305 | Mccurtain | D | 46 | 560 | 117 | Health Unresolved | |
| 306 | Boynton | D | 46 | 510 | 281 | Health Unresolved | |
| 307 | Okmulgee | D | 45.7 | 16K | 385 | Health Unresolved | |
| 308 | Coweta | D | 45.4 | 14K | 256 | Health PFAS Unresolved | |
| 309 | Yukon | D | 45 | 23K | 163 | Health Unresolved | |
| 310 | Pryor | D | 45 | 17K | 211 | Health PFAS Unresolved | |
| 311 | Ochelata | D | 45 | 8K | 242 | Health Unresolved | |
| 312 | Wynnewood | D | 45 | 5K | 142 | Health Unresolved | |
| 313 | Jay | D | 45 | 4K | 247 | Health Unresolved | |
| 314 | Coalgate | D | 45 | 3K | 205 | Health Unresolved | |
| 315 | Ramona | D | 45 | 3K | 272 | Health Unresolved | |
| 316 | Cookson | D | 45 | 3K | 433 | Health Unresolved | |
| 317 | Talihina | D | 45 | 2K | 355 | Health Unresolved | |
| 318 | Clayton | D | 45 | 2K | 364 | Health Unresolved | |
| 319 | Red Rock | D | 45 | 543 | 437 | Health Unresolved | |
| 320 | Del City | F | 44.9 | 22K | 216 | Health Unresolved | |
| 321 | Moore | F | 44.5 | 55K | 251 | Health Unresolved | |
| 322 | Broken Bow | F | 44.5 | 12K | 150 | Health Unresolved | |
| 323 | Afton | F | 44.5 | 3K | 707 | Health Unresolved | |
| 324 | Lawton | F | 44.4 | 99K | 601 | Health Unresolved | |
| 325 | Wagoner | F | 44 | 16K | 254 | Health Unresolved | |
| 326 | Coffeyville | F | 44 | 2K | 109 | Health Unresolved | |
| 327 | Millerton | F | 44 | 755 | 81 | Health Unresolved | |
| 328 | Broken Arrow | F | 43.9 | 142K | 135 | Health PFAS Unresolved | |
| 329 | Mcalester | F | 43.9 | 29K | 1079 | Health Unresolved | |
| 330 | Eufaula | F | 43.8 | 13K | 542 | Health Unresolved | |
| 331 | Chickasha | F | 43.5 | 17K | 129 | Health Unresolved | |
| 332 | Guthrie | F | 43.2 | 19K | 274 | Health PFAS Unresolved | |
| 333 | Tahlequah | F | 43 | 21K | 263 | Health Unresolved | |
| 334 | Cleveland | F | 43 | 7K | 334 | Health Unresolved | |
| 335 | Wellston | F | 43 | 1K | 214 | Health Unresolved | |
| 336 | Kremlin | F | 43 | 920 | 160 | Health Unresolved | |
| 337 | Nashoba | F | 43 | 725 | 119 | Health Unresolved | |
| 338 | Fort Gibson | F | 42.9 | 8K | 340 | Health Unresolved | |
| 339 | Bartlesville | F | 42.8 | 36K | 282 | Health Unresolved | |
| 340 | Madill | F | 42.5 | 24K | 364 | Health Unresolved | |
| 341 | Cache | F | 42 | 5K | 106 | Health Unresolved | |
| 342 | Lexington | F | 42 | 5K | 262 | Health Unresolved | |
| 343 | Claremore | F | 41.7 | 60K | 330 | Health Unresolved | |
| 344 | Nowata | F | 41.5 | 7K | 502 | Health PFAS Unresolved | |
| 345 | Okarche | F | 41.5 | 1K | 290 | Health Unresolved | |
| 346 | Dewey | F | 41 | 4K | 108 | Health Unresolved | |
| 347 | Enid | F | 40.5 | 54K | 478 | Health Unresolved | |
| 348 | Newkirk | F | 40.2 | 3K | 83 | Health PFAS Unresolved | |
| 349 | Henryetta | F | 40 | 9K | 204 | Health Unresolved | |
| 350 | Ponca City | F | 39.8 | 33K | 345 | Health PFAS Unresolved | |
| 351 | Stillwater | F | 39 | 73K | 248 | Health PFAS Unresolved | |
| 352 | Oklahoma City | F | 38.6 | 677K | 1387 | Health Unresolved | |
| 353 | Norman | F | 38.4 | 140K | 780 | Health Unresolved | |
| 354 | Choctaw | F | 38 | 4K | 140 | Health Unresolved | |
| 355 | Edmond | F | 34.9 | 90K | 2458 | Health PFAS Unresolved | |
| 356 | Tecumseh | F | 34.2 | 6K | 1099 | Health Lead Unresolved | |
| 357 | Ardmore | F | 32.1 | 36K | 698 | Health Lead Unresolved | |
| 358 | Ratliff City | F | 31 | 2K | 57 | Health Lead Unresolved |