Louisiana Water Quality Rankings
309 cities ranked · Data from EPA SDWIS
65.5
State avg score
309
Cities ranked
49%
A or B grade
38%
D or F grade
303
Health violations
141
PFAS detected
Analysis
Louisiana water quality overview
Louisiana's drinking water quality is fair overall, with a state average score of 65.5 out of 100 — 8.7 points below the national average of 74.2. The median city score is 69, reflecting how water quality is distributed across the state's 309 ranked cities. 38% of cities scored a D or F, pointing to significant water quality challenges across much of the state. 151 cities did earn an A or B grade, showing that strong systems do exist. PFAS "forever chemicals" were detected in 141 of 309 cities (46%). Of those, 6 cities exceed the 2024 EPA maximum contaminant levels — a health concern requiring action. 1 city has 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. 303 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.
Grade Distribution
How Louisiana cities scored
A
72
23%
Excellent
B
79
26%
Good
C
40
13%
Fair
D
56
18%
Poor
F
62
20%
Failing
Score Distribution
Score distribution by range
87 44 0
0–9
10–19
20–29
30–39
40–49
50–59
60–69
70–79
80–89
90–100
Comparison
State vs national average
▼ 8.7 pts below national average
City Map
Water quality across Louisiana
Each dot is a city, colored by grade. Size reflects population served. Click any city to view its full report.
Highlights
Top & bottom cities in Louisiana
Best 10 cities
Full Rankings
All 309 cities in Louisiana
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Dequincy | A+ | 97.1 | 5K | 5 | Health Unresolved | |
| 2 | Singer | A+ | 96 | 7K | 15 | Health Unresolved | |
| 3 | Lockport | A+ | 95.3 | 82K | 4 | Health | |
| 4 | Forest Hill | A | 94.1 | 4K | 7 | Health Unresolved | |
| 5 | Ethel | A | 94 | 15K | 16 | Health Unresolved | |
| 6 | Deville | A | 92.8 | 12K | 4 | Health Unresolved | |
| 7 | Erath | A | 92.8 | 3K | 15 | Health Unresolved | |
| 8 | Barksdale Afb | A | 92.7 | 13K | 22 | Health Unresolved | |
| 9 | Hackberry | A | 92.5 | 926 | 24 | Health Unresolved | |
| 10 | Pearl River | A | 92.2 | 4K | 11 | Health Unresolved | |
| 11 | Johnson Bayou | A | 91.4 | 2K | 3 | Health Unresolved | |
| 12 | Hineston | A | 91.1 | 1K | 28 | Health Unresolved | |
| 13 | Natchez | A | 91 | 8K | 28 | Health Unresolved | |
| 14 | Summerfield | A | 91 | 1K | 6 | Health Unresolved | |
| 15 | Abita Springs | A | 90.8 | 4K | 13 | Health Unresolved | |
| 16 | Natchitoches | A | 90.7 | 28K | 24 | Health Unresolved | |
| 17 | Pelican | A | 90.6 | 1K | 10 | Health Unresolved | |
| 18 | Forest | A | 90.4 | 2K | 5 | Health Unresolved | |
| 19 | Turkey Creek | A | 90.2 | 5K | 9 | Health Unresolved | |
| 20 | Pitkin | A | 90.2 | 750 | 13 | Health Unresolved | |
| 21 | Kelly | A | 90.1 | 1K | 8 | Health Unresolved | |
| 22 | Angola | A | 90 | 6K | 12 | Health Unresolved | |
| 23 | Oak Ridge | A- | 89.9 | 714 | 16 | Health Unresolved | |
| 24 | Reeves | A- | 89.6 | 4K | 20 | Health Unresolved | |
| 25 | Folsom | A- | 89.6 | 2K | 11 | Health Unresolved | |
| 26 | Morganza | A- | 89.5 | 1K | 4 | Unresolved | |
| 27 | Plaucheville | A- | 89.2 | 4K | 7 | Health Unresolved | |
| 28 | Archibald | A- | 89.1 | 4K | 16 | Health Unresolved | |
| 29 | Thibodaux | A- | 89 | 15K | 39 | Health Unresolved | |
| 30 | Luling | A- | 88.9 | 53K | 3 | Health Unresolved | |
| 31 | Simpson | A- | 88.9 | 1K | 8 | Health Unresolved | |
| 32 | Innis | A- | 88.8 | 2K | 7 | Health Unresolved | |
| 33 | Starks | A- | 88.7 | 3K | 18 | Health Unresolved | |
| 34 | St. Landry | A- | 88.7 | 711 | 15 | Health Unresolved | |
| 35 | Welsh | A- | 88.5 | 10K | 11 | Health Unresolved | |
| 36 | Bordelonville | A- | 88.5 | 4K | 5 | Health Unresolved | |
| 37 | Tioga | A- | 88.4 | 20K | 11 | Health Unresolved | |
| 38 | Urania | A- | 88.4 | 784 | 14 | Health Unresolved | |
| 39 | Athens | A- | 88.3 | 5K | 45 | Health Unresolved | |
| 40 | Evergreen | A- | 88.2 | 2K | 12 | Health Unresolved | |
| 41 | Slagle | A- | 88 | 6K | 1 | Unresolved | |
| 42 | Maringouin | A- | 87.9 | 3K | 13 | Health Unresolved | |
| 43 | Chalmette | A- | 87.7 | 45K | 47 | Health Unresolved | |
| 44 | Gonzales | A- | 87.7 | 17K | 30 | Health Unresolved | |
| 45 | Stonewall | A- | 87.7 | 8K | 12 | Health Unresolved | |
| 46 | Woodworth | A- | 87.5 | 5K | 17 | Health Unresolved | |
| 47 | Vivian | A- | 87.3 | 4K | 21 | Health Unresolved | |
| 48 | Effie | A- | 87.2 | 4K | 9 | Health Unresolved | |
| 49 | Tickfaw | A- | 87.2 | 764 | 10 | Health Unresolved | |
| 50 | Carencro | A- | 86.8 | 11K | 18 | Health Unresolved | |
| 51 | Elmer | A- | 86.8 | 3K | 7 | Health Unresolved | |
| 52 | Livonia | A- | 86.7 | 1K | 1 | Unresolved | |
| 53 | Hornbeck | A- | 86.6 | 3K | 2 | Unresolved | |
| 54 | Longville | A- | 86.5 | 24K | 15 | Health Unresolved | |
| 55 | Mansura | A- | 86.5 | 3K | 3 | Health Unresolved | |
| 56 | Basile | A- | 86.3 | 7K | 42 | Health Unresolved | |
| 57 | Mer Rouge | A- | 86.3 | 3K | 19 | Health Unresolved | |
| 58 | Gretna | A- | 86.2 | 17K | 24 | Health Unresolved | |
| 59 | Walker | A- | 86.2 | 16K | 17 | Health Unresolved | |
| 60 | Baker | A- | 86.2 | 14K | 15 | Health Unresolved | |
| 61 | Bethany | A- | 86.2 | 2K | 12 | Health Unresolved | |
| 62 | Elizabeth | A- | 86.2 | 966 | 4 | Health Unresolved | |
| 63 | Fort Johnson | A- | 86 | 22K | 23 | Health Unresolved | |
| 64 | Jefferson | A- | 85.8 | 415K | 5 | Health Unresolved | |
| 65 | Grant | A- | 85.7 | 2K | 14 | Health Unresolved | |
| 66 | Start | A- | 85.5 | 3K | 6 | Health Unresolved | |
| 67 | Lawtell | A- | 85.3 | 10K | 21 | Health Unresolved | |
| 68 | Elton | A- | 85.3 | 2K | 30 | Health Unresolved | |
| 69 | Napoleonville | A- | 85 | 21K | 33 | Health Unresolved | |
| 70 | Lake Arthur | A- | 85 | 12K | 16 | Health Unresolved | |
| 71 | Bently | A- | 85 | 5K | 6 | Health Unresolved | |
| 72 | Slaughter | A- | 85 | 2K | 8 | Unresolved | |
| 73 | Clinton | B+ | 83.9 | 3K | 15 | Health Unresolved | |
| 74 | St. Francisville | B+ | 83.8 | 14K | 19 | Health Unresolved | |
| 75 | Carville | B+ | 83.8 | 600 | 9 | Health Unresolved | |
| 76 | Sulphur | B+ | 83.5 | 46K | 44 | Health Unresolved | |
| 77 | Mangham | B+ | 83.4 | 927 | 11 | Health Unresolved | |
| 78 | Blanchard | B+ | 83.2 | 16K | 52 | Health Unresolved | |
| 79 | Deridder | B+ | 83.2 | 14K | 8 | Health Unresolved | |
| 80 | Dubberly | B+ | 83.2 | 2K | 12 | Health Unresolved | |
| 81 | Washington | B+ | 83.1 | 2K | 16 | Health Unresolved | |
| 82 | Iowa | B+ | 83 | 4K | 15 | Health Unresolved | |
| 83 | Port Barre | B+ | 82.8 | 7K | 55 | Health Unresolved | |
| 84 | Hall Summit | B+ | 82.8 | 756 | 14 | Health Unresolved | |
| 85 | Livingston | B+ | 82.7 | 13K | 37 | Health Unresolved | |
| 86 | Morrow | B+ | 82.7 | 2K | 1 | Unresolved | |
| 87 | Lena | B+ | 82.5 | 4K | 10 | Health Unresolved | |
| 88 | Houma | B+ | 82.4 | 128K | 19 | Health Unresolved | |
| 89 | Vinton | B+ | 82.3 | 5K | 9 | Health Unresolved | |
| 90 | Lutcher | B+ | 82.3 | 5K | 25 | Health Unresolved | |
| 91 | Pioneer | B+ | 82.3 | 2K | 8 | Health Unresolved | |
| 92 | Boyce | B+ | 82 | 11K | 45 | Health Unresolved | |
| 93 | Charenton | B+ | 82 | 10K | 17 | Health Unresolved | |
| 94 | Cankton | B+ | 81.9 | 3K | 20 | Health Unresolved | |
| 95 | Echo | B+ | 81.8 | 1K | 14 | Health Unresolved | |
| 96 | Krotz Springs | B+ | 81.5 | 3K | 21 | Health Unresolved | |
| 97 | Anacoco | B+ | 81.3 | 6K | 14 | Health Unresolved | |
| 98 | Abbeville | B+ | 81.2 | 30K | 23 | Health Unresolved | |
| 99 | Convent | B+ | 80.8 | 15K | 71 | Health Unresolved | |
| 100 | Bell City | B+ | 80.8 | 5K | 17 | Health Unresolved | |
| 101 | Jennings | B+ | 80.7 | 14K | 16 | Health Unresolved | |
| 102 | Jackson | B+ | 80.4 | 7K | 78 | Health Unresolved | |
| 103 | Berwick | B+ | 80.2 | 6K | 20 | Health Unresolved | |
| 104 | Hosston | B+ | 80.2 | 729 | 61 | Health Unresolved | |
| 105 | Delhi | B+ | 80 | 8K | 66 | Health Unresolved | |
| 106 | Merryville | B | 79.7 | 3K | 24 | Health Unresolved | |
| 107 | Ruston | B | 79.5 | 35K | 49 | Health Unresolved | |
| 108 | Shongaloo | B | 79.5 | 2K | 24 | Health Unresolved | |
| 109 | Springhill | B | 79.3 | 8K | 12 | Health Unresolved | |
| 110 | Crowville | B | 79.2 | 8K | 7 | Health Unresolved | |
| 111 | Rosepine | B | 79.2 | 7K | 18 | Health Unresolved | |
| 112 | Moureauville | B | 79.1 | 2K | 13 | Health Unresolved | |
| 113 | Centerville | B | 79 | 8K | 14 | Health Unresolved | |
| 114 | Lisbon | B | 78.9 | 891 | 11 | Health Unresolved | |
| 115 | Morgan City | B | 78.5 | 15K | 43 | Health Unresolved | |
| 116 | Grosse Tete | B | 78.5 | 954 | 11 | Health Unresolved | |
| 117 | Marksville | B | 78.2 | 18K | 41 | Health Unresolved | |
| 118 | Estherwood | B | 77.5 | 891 | 13 | Health Unresolved | |
| 119 | Denham Springs | B | 75.6 | 100K | 42 | Health Unresolved | |
| 120 | Goldonna | B | 75.4 | 969 | 20 | Health Unresolved | |
| 121 | Franklinton | B | 75.3 | 8K | 77 | Health Unresolved | |
| 122 | Trout | B- | 74.8 | 3K | 12 | Health Unresolved | |
| 123 | Westwego | B- | 74.7 | 9K | 55 | Health Unresolved | |
| 124 | Oberlin | B- | 74.7 | 6K | 44 | Health Unresolved | |
| 125 | Port Allen | B- | 74.3 | 31K | 46 | Health Unresolved | |
| 126 | Cameron | B- | 74.3 | 2K | 28 | Health Unresolved | |
| 127 | Vidalia | B- | 74.2 | 6K | 11 | Health PFAS Unresolved | |
| 128 | Simsboro | B- | 74.2 | 4K | 33 | Health Unresolved | |
| 129 | Haynesville | B- | 74.1 | 5K | 40 | Health Unresolved | |
| 130 | Kaplan | B- | 74 | 6K | 49 | Health Unresolved | |
| 131 | Tangipahoa | B- | 74 | 748 | 45 | Health Unresolved | |
| 132 | Simmesport | B- | 73.7 | 2K | 14 | Health Unresolved | |
| 133 | Hessmer | B- | 73.5 | 3K | 8 | Health Unresolved | |
| 134 | Monterey | B- | 73.2 | 5K | 8 | Health Unresolved | |
| 135 | Amelia | B- | 73.2 | 3K | 18 | Health Unresolved | |
| 136 | Patterson | B- | 73 | 14K | 19 | Health Unresolved | |
| 137 | Fordoche | B- | 73 | 1K | 8 | Health Unresolved | |
| 138 | Cheneyville | B- | 72.6 | 2K | 23 | Health Unresolved | |
| 139 | Loreauville | B- | 72.5 | 10K | 22 | Health Unresolved | |
| 140 | Gramercy | B- | 72.5 | 3K | 70 | Health Unresolved | |
| 141 | Pine Praire | B- | 72.5 | 3K | 10 | Health Unresolved | |
| 142 | Broussard | B- | 72.2 | 20K | 58 | Health Unresolved | |
| 143 | Delcambre | B- | 72.2 | 2K | 16 | Health Unresolved | |
| 144 | Glenmora | B- | 72.1 | 4K | 43 | Health Unresolved | |
| 145 | Cecilia | B- | 71.5 | 12K | 14 | Health Unresolved | |
| 146 | Mermentau | B- | 71.2 | 780 | 20 | Health Unresolved | |
| 147 | Roseland | B- | 70.9 | 2K | 34 | Health Unresolved | |
| 148 | Eunice | B- | 70.8 | 10K | 33 | Health Unresolved | |
| 149 | Zachary | B- | 70.7 | 32K | 53 | Health Unresolved | |
| 150 | Morse | B- | 70.3 | 806 | 19 | Health Unresolved | |
| 151 | Rosedale | B- | 70.2 | 664 | 19 | Health Unresolved | |
| 152 | Cotton Valley | C+ | 69.6 | 1K | 48 | Health Unresolved | |
| 153 | Greenwood | C+ | 69.3 | 5K | 21 | Health Unresolved | |
| 154 | Leonville | C+ | 69.2 | 10K | 31 | Health Unresolved | |
| 155 | Sunset | C+ | 69 | 11K | 56 | Health Unresolved | |
| 156 | Kilbourne | C+ | 69 | 4K | 33 | Health Unresolved | |
| 157 | Maurice | C+ | 68.5 | 28K | 31 | Health Unresolved | |
| 158 | Madisonville | C+ | 66.3 | 2K | 54 | Health Unresolved | |
| 159 | Mooringsport | C+ | 66.1 | 999 | 130 | Health Unresolved | |
| 160 | Rayne | C+ | 66 | 16K | 43 | Health Unresolved | |
| 161 | Cottonport | C+ | 65.6 | 3K | 22 | Health Unresolved | |
| 162 | New Llano | C+ | 65.2 | 9K | 35 | Health Unresolved | |
| 163 | Sun | C | 64.9 | 726 | 31 | Health Unresolved | |
| 164 | Ponchatoula | C | 64.5 | 7K | 30 | Health Unresolved | |
| 165 | Jonesville | C | 64.2 | 7K | 33 | Health Lead Unresolved | |
| 166 | Amite | C | 64 | 5K | 39 | Health Unresolved | |
| 167 | Church Point | C | 63.5 | 14K | 23 | Health Unresolved | |
| 168 | Donaldsonville | C | 63.3 | 12K | 104 | Health PFAS Unresolved | |
| 169 | Clarks | C | 63.2 | 906 | 17 | Health Unresolved | |
| 170 | Jeanerette | C | 63 | 8K | 64 | Health Unresolved | |
| 171 | Leesville | C | 62.8 | 11K | 52 | Health Unresolved | |
| 172 | Waterproof | C | 61.6 | 786 | 85 | Health Unresolved | |
| 173 | Wilson | C | 61.5 | 744 | 21 | Health Unresolved | |
| 174 | Arnaudville | C | 61.2 | 9K | 80 | Health Unresolved | |
| 175 | Mount Hermon | C | 61 | 1K | 15 | Health Unresolved | |
| 176 | Parks | C | 60.9 | 13K | 36 | Health PFAS Unresolved | |
| 177 | Arcadia | C | 60.6 | 4K | 40 | Health Unresolved | |
| 178 | Florien | C | 60.3 | 700 | 16 | Health Unresolved | |
| 179 | Sarepta | C- | 59.6 | 4K | 38 | Health Unresolved | |
| 180 | Sibley | C- | 59.6 | 2K | 41 | Health Unresolved | |
| 181 | Youngsville | C- | 59.2 | 19K | 40 | Health Unresolved | |
| 182 | Olla | C- | 58.1 | 3K | 48 | Health Unresolved | |
| 183 | Scott | C- | 58 | 10K | 157 | Health Unresolved | |
| 184 | White Castle | C- | 57.9 | 3K | 18 | Health Unresolved | |
| 185 | Opelousas | C- | 57.7 | 35K | 56 | Health Unresolved | |
| 186 | Calhoun | C- | 57.5 | 4K | 60 | Health Unresolved | |
| 187 | Pollock | C- | 56.9 | 7K | 35 | Health Unresolved | |
| 188 | Wisner | C- | 55.9 | 1K | 29 | Health Unresolved | |
| 189 | Logansport | C- | 55.5 | 2K | 33 | Health Unresolved | |
| 190 | Duson | C- | 55.4 | 19K | 49 | Health Unresolved | |
| 191 | Plaquemine | C- | 55.2 | 33K | 42 | Health PFAS Unresolved | |
| 192 | Independence | D+ | 54.9 | 3K | 53 | Health Unresolved | |
| 193 | Jena | D+ | 54.3 | 8K | 64 | Health Unresolved | |
| 194 | Cullen | D+ | 52.7 | 1K | 63 | Health Unresolved | |
| 195 | Laplace | D+ | 52.5 | 47K | 142 | Health Unresolved | |
| 196 | Heflin | D+ | 52 | 2K | 68 | Health Unresolved | |
| 197 | Many | D+ | 51.2 | 21K | 372 | Health Unresolved | |
| 198 | Winnfield | D+ | 50.5 | 12K | 244 | Health Unresolved | |
| 199 | West Monroe | D+ | 50.2 | 117K | 658 | Health Unresolved | |
| 200 | Bernice | D+ | 50 | 8K | 144 | Health Unresolved | |
| 201 | Dubach | D+ | 50 | 4K | 164 | Health Unresolved | |
| 202 | Joyce | D+ | 50 | 840 | 154 | Health Unresolved | |
| 203 | Creole | D+ | 50 | 576 | 42 | Health Unresolved | |
| 204 | Greensburg | D | 49.6 | 10K | 23 | Health Unresolved | |
| 205 | Albany | D | 49.5 | 12K | 24 | Health Unresolved | |
| 206 | Bunkie | D | 49 | 6K | 38 | Health Unresolved | |
| 207 | Mamou | D | 49 | 5K | 38 | Health Unresolved | |
| 208 | Noble | D | 49 | 549 | 77 | Health Unresolved | |
| 209 | Zwolle | D | 48.2 | 12K | 293 | Health Unresolved | |
| 210 | Grand Chenier | D | 48.2 | 871 | 64 | Health Unresolved | |
| 211 | Choudrant | D | 48 | 6K | 86 | Health Unresolved | |
| 212 | Oak Grove | D | 47.1 | 7K | 52 | Health Unresolved | |
| 213 | Sicily Island | D | 47.1 | 2K | 45 | Health Unresolved | |
| 214 | Farmerville | D | 47 | 12K | 581 | Health Unresolved | |
| 215 | Harrisonburg | D | 47 | 9K | 181 | Health Unresolved | |
| 216 | Columbia | D | 47 | 9K | 78 | Health Unresolved | |
| 217 | Downsville | D | 47 | 5K | 225 | Health Unresolved | |
| 218 | Marion | D | 47 | 4K | 368 | Health Unresolved | |
| 219 | Provencal | D | 47 | 3K | 160 | Health Unresolved | |
| 220 | Castor | D | 47 | 3K | 189 | Health Unresolved | |
| 221 | Chatham | D | 47 | 2K | 104 | Health Unresolved | |
| 222 | Converse | D | 47 | 2K | 107 | Health Unresolved | |
| 223 | Clayton | D | 47 | 2K | 111 | Health Unresolved | |
| 224 | Dodson | D | 47 | 1K | 183 | Health Unresolved | |
| 225 | Tullos | D | 47 | 792 | 124 | Health Unresolved | |
| 226 | Ridgecrest | D | 47 | 684 | 79 | Health Unresolved | |
| 227 | Pleasant Hill | D | 46.9 | 990 | 31 | Health Unresolved | |
| 228 | Palmetto | D | 46.5 | 2K | 45 | Health Unresolved | |
| 229 | Keithville | D | 46.2 | 10K | 174 | Health Unresolved | |
| 230 | Franklin | D | 46.2 | 9K | 152 | Health Unresolved | |
| 231 | Oil City | D | 46 | 2K | 147 | Health Unresolved | |
| 232 | Newellton | D | 46 | 1K | 170 | Health Unresolved | |
| 233 | Sterlington | D | 46 | 1K | 44 | Health Unresolved | |
| 234 | Clarence | D | 46 | 642 | 59 | Health Unresolved | |
| 235 | Jonesboro | D | 45.8 | 9K | 185 | Health Unresolved | |
| 236 | Doyline | D | 45.8 | 4K | 198 | Health Unresolved | |
| 237 | Breaux Bridge | D | 45.5 | 14K | 60 | Health Unresolved | |
| 238 | New Roads | D | 45.2 | 25K | 80 | Health Unresolved | |
| 239 | Bogalusa | D | 45 | 14K | 56 | Health Unresolved | |
| 240 | Oakdale | D | 45 | 10K | 64 | Health Unresolved | |
| 241 | Grayson | D | 45 | 4K | 135 | Health Unresolved | |
| 242 | Belmont | D | 45 | 3K | 145 | Health Unresolved | |
| 243 | Elm Grove | D | 45 | 2K | 45 | Health Unresolved | |
| 244 | Hodge | D | 45 | 1K | 199 | Health Unresolved | |
| 245 | Bonita | D | 45 | 1K | 156 | Health Unresolved | |
| 246 | Eros | D | 45 | 1K | 128 | Health Unresolved | |
| 247 | Calvin | D | 45 | 591 | 226 | Health Unresolved | |
| 248 | Kinder | F | 44.5 | 11K | 45 | Health Unresolved | |
| 249 | Prairieville | F | 44.5 | 7K | 154 | Health Unresolved | |
| 250 | Gibsland | F | 44.3 | 1K | 69 | Health Unresolved | |
| 251 | Pineville | F | 44.2 | 25K | 20 | Health Unresolved | |
| 252 | Westlake | F | 44.2 | 10K | 38 | Health Unresolved | |
| 253 | Homer | F | 44.2 | 8K | 84 | Health Unresolved | |
| 254 | Lake Charles | F | 43.9 | 120K | 369 | Health Unresolved | |
| 255 | Alexandria | F | 43.9 | 69K | 232 | Health Unresolved | |
| 256 | Minden | F | 43.5 | 26K | 194 | Health Unresolved | |
| 257 | Mansfield | F | 43.5 | 19K | 346 | Health Unresolved | |
| 258 | Baton Rouge | F | 43.2 | 702K | 90 | Health Unresolved | |
| 259 | Milton | F | 43.2 | 13K | 134 | Health Unresolved | |
| 260 | Alanta | F | 43.2 | 3K | 37 | Health Unresolved | |
| 261 | Pine Prairie | F | 43.2 | 900 | 36 | Health Unresolved | |
| 262 | Belle Chasse | F | 43 | 32K | 166 | Health PFAS Unresolved | |
| 263 | Keatchie | F | 43 | 4K | 77 | Health Unresolved | |
| 264 | Plain Dealing | F | 43 | 3K | 117 | Health Unresolved | |
| 265 | Sikes | F | 43 | 639 | 209 | Health Unresolved | |
| 266 | Mandeville | F | 42.9 | 65K | 578 | Health Unresolved | |
| 267 | Bastrop | F | 42.9 | 25K | 101 | Health Unresolved | |
| 268 | St Joseph | F | 42.9 | 5K | 106 | Health Unresolved | |
| 269 | Haughton | F | 42.8 | 6K | 41 | Health Unresolved | |
| 270 | Tallulah | F | 42.2 | 12K | 91 | Health Unresolved | |
| 271 | Grambling | F | 42.2 | 12K | 90 | Health Unresolved | |
| 272 | Ringgold | F | 42 | 5K | 165 | Health Unresolved | |
| 273 | Iota | F | 42 | 2K | 20 | Health Unresolved | |
| 274 | Loranger | F | 42 | 2K | 148 | Health Unresolved | |
| 275 | Springfield | F | 42 | 695 | 66 | Health Unresolved | |
| 276 | Hammond | F | 41.6 | 101K | 187 | Health Unresolved | |
| 277 | Bossier City | F | 41.2 | 80K | 298 | Health Unresolved | |
| 278 | Monroe | F | 41.1 | 65K | 88 | Health Unresolved | |
| 279 | Ferriday | F | 41 | 13K | 377 | Health Unresolved | |
| 280 | Gilbert | F | 41 | 11K | 276 | Health Unresolved | |
| 281 | Winnsboro | F | 41 | 9K | 35 | Health Unresolved | |
| 282 | New Iberia | F | 41 | 9K | 60 | Health Unresolved | |
| 283 | Melville | F | 41 | 2K | 106 | Health Unresolved | |
| 284 | Bienville | F | 41 | 1K | 140 | Health Unresolved | |
| 285 | Epps | F | 41 | 594 | 58 | Health Unresolved | |
| 286 | Covington | F | 40.9 | 84K | 273 | Health Unresolved | |
| 287 | Rayville | F | 40.5 | 9K | 306 | Health Unresolved | |
| 288 | St. Martinville | F | 40.2 | 14K | 138 | Health Unresolved | |
| 289 | Benton | F | 40 | 33K | 94 | Health Unresolved | |
| 290 | Coushatta | F | 40 | 13K | 436 | Health Unresolved | |
| 291 | Slidell | F | 39.5 | 48K | 396 | Health Unresolved | |
| 292 | Ville Platte | F | 39.2 | 21K | 112 | Health Unresolved | |
| 293 | Angie | F | 39.2 | 10K | 162 | Health Unresolved | |
| 294 | Lake Providence | F | 39.2 | 7K | 75 | Health Unresolved | |
| 295 | Transylvania | F | 39.2 | 1K | 103 | Health Unresolved | |
| 296 | Saline | F | 39 | 3K | 317 | Health Unresolved | |
| 297 | Egan | F | 38.2 | 8K | 67 | Health Unresolved | |
| 298 | Quitman | F | 38 | 3K | 82 | Health Unresolved | |
| 299 | Gueydan | F | 38 | 2K | 24 | Health Unresolved | |
| 300 | Montgomery | F | 38 | 2K | 65 | Health Unresolved | |
| 301 | Shreveport | F | 36.5 | 202K | 289 | Health Unresolved | |
| 302 | Colfax | F | 36 | 4K | 45 | Health Unresolved | |
| 303 | Dry Prong | F | 36 | 3K | 47 | Health Unresolved | |
| 304 | Collinston | F | 36 | 1K | 74 | Health Unresolved | |
| 305 | Lafayette | F | 35.1 | 203K | 130 | Health Unresolved | |
| 306 | New Orleans | F | 34.1 | 388K | 83 | Health PFAS Unresolved | |
| 307 | Kentwood | F | 34 | 2K | 185 | Health Unresolved | |
| 308 | Grand Coteau | F | 34 | 2K | 48 | Health Unresolved | |
| 309 | Campti | F | 33 | 3K | 129 | Health Unresolved |