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State file — MO

Underground storage tanks in Missouri

14,550 registered facilities · 8,215 tanks in service · 6,872 leak records · 695 open cleanup cases (EPA UST Finder snapshot, 2018–2021 state data).

14,550UST facilities
8,215tanks in service
32,983closed tanks
6,872leak records
695open cases
90%cases closed / NFA

Missouri runs 13.3 tanks in service per 10,000 residents (population 6,191,231). 6,177 of its 6,872 reported releases have reached No Further Action. The regulator of record is the Missouri DNR Tanks Program, which holds the live registration and case files.

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By county

CountyFacilitiesTanks in serviceLeak recordsOpen cases
Adair County6641271
Andrew County282461
Atchison County3117135
Audrain County9542411
Barry County9248333
Barton County4221201
Bates County6815161
Benton County5524191
Bollinger County38792
Boone County2982091606
Buchanan County28414814419
Butler County13451587
Caldwell County2716130
Callaway County10775589
Camden County13393322
Cape Girardeau County2711148614
Carroll County4210131
Carter County24550
Cass County150138717
Cedar County4716152
Chariton County456170
Christian County8195221
Clark County3019111
Clay County39529222924
Clinton County4328181
Cole County197126874
Cooper County8137384
Crawford County6732202
Dade County271051
Dallas County2712112
Daviess County17960
DeKalb County3616226
Dent County345151
Douglas County3811162
Dunklin County117404512
Franklin County25520710614
Gasconade County6118253
Gentry County237112
Greene County68544634339
Grundy County3711130
Harrison County3627123
Henry County10027440
Hickory County331550
Holt County211252
Howard County3013142
Howell County11664447
Iron County34470
Jackson County1,5651,01897259
Jasper County32318513618
Jefferson County29927912323
Johnson County11050734
Knox County131240
Laclede County11259455
Lafayette County13367493
Lawrence County10645418
Lewis County5120142
Lincoln County11165354
Linn County4725181
Livingston County5320243
Macon County6829243
Madison County38891
Maries County278110
Marion County12181399
McDonald County4126123
Mercer County211061
Miller County7329262
Mississippi County528176
Moniteau County4318202
Monroe County2718150
Montgomery County4317171
Morgan County5119251
New Madrid County75473512
Newton County145112589
Nodaway County5722185
Oregon County4112111
Osage County5112111
Ozark County25442
Pemiscot County6140226
Perry County6834222
Pettis County13653624
Phelps County118846310
Pike County6941324
Platte County173154997
Polk County5623215
Pulaski County7257254
Putnam County14262
Ralls County382470
Randolph County7941461
Ray County4622172
Reynolds County24390
Ripley County4319104
Saline County10735585
Schuyler County121152
Scotland County25560
Scott County131565316
Shannon County331271
Shelby County2416120
St. Charles County44540519013
St. Clair County3811220
St. Francois County125765113
St. Louis City County1,24340866580
St. Louis County County2,0331,1811,17681
Ste. Genevieve County4627142
Stoddard County9433324
Stone County6146130
Sullivan County17750
Taney County11688563
Texas County7515143
Vernon County5831276
Warren County5535304
Washington County2814112
Wayne County519191
Webster County5338242
Worth County8220
Wright County5529171

Frequently asked questions

How many underground storage tanks are in Missouri?

The EPA UST Finder snapshot lists 14,550 registered UST facilities in Missouri, with 8,215 tanks in service and 32,983 closed or removed tanks across 115 countys.

How many tank leaks have been reported in Missouri?

6,872 releases are on record statewide. 6,177 (90%) were closed with No Further Action; 695 cleanup cases remained open in the snapshot.

Which Missouri county has the most underground storage tanks?

By facility count: St. Louis County (2,033), Jackson (1,565), St. Louis City (1,243), Greene (685), St. Charles (445). Use the county pages for tank and leak detail, or screen any specific address free at https://tankcheckusa.site/.