| aland islands | | lactobacillus casei | species | 0 | 1 |
| algeria | | lactobacillus casei | species | 4 | 0 |
| argentina | | lactobacillus casei | species | 2 | 0 |
| argentina | buenos aires city | lactobacillus casei | species | 0 | 1 |
| argentina | buenos aires province | lactobacillus casei | species | 0 | 1 |
| argentina | misiones province | lactobacillus casei | species | 0 | 1 |
| australia | | lactobacillus casei | species | 351 | 0 |
| australia | south australia | lactobacillus casei | species | 0 | 1 |
| bosnia and herzegovina | | lactobacillus casei | species | 3 | 0 |
| brazil | | lactobacillus casei | species | 14 | 0 |
| brazil | minas gerais | lactobacillus casei | species | 1 | 0 |
| brazil | para | lactobacillus casei | species | 1 | 0 |
| brazil | sao paulo | lactobacillus casei | species | 0 | 1 |
| bulgaria | | lactobacillus casei | species | 3 | 0 |
| burkina faso | centre region | lactobacillus casei | species | 1 | 0 |
| cameroon | east region | lactobacillus casei | species | 1 | 0 |
| canada | | lactobacillus casei | species | 8 | 0 |
| canada | ontario | lactobacillus casei | species | 184 | 0 |
| canada | quebec | lactobacillus casei | species | 423 | 1 |
| china | | lactobacillus casei | species | 963 | 0 |
| china | | lactobacillus casei bd-ii | no rank | 4 | 0 |
| china | beijing | lactobacillus casei | species | 4 | 0 |
| china | gansu | lactobacillus casei | species | 3 | 2 |
| china | guangdong | lactobacillus casei | species | 390 | 0 |
| china | hebei | lactobacillus casei | species | 0 | 1 |
| china | heilongjiang | lactobacillus casei | species | 1 | 0 |
| china | inner mongolia | lactobacillus casei | species | 176 | 6 |
| china | inner mongolia | lactobacillus casei lc2w | no rank | 4 | 0 |
| china | inner mongolia | lactobacillus casei str. zhang | no rank | 5 | 0 |
| china | jiangxi | lactobacillus casei | species | 374 | 0 |
| china | jilin | lactobacillus casei | species | 180 | 0 |
| china | liaoning | lactobacillus casei | species | 1 | 0 |
| china | qinghai | lactobacillus casei | species | 1 | 0 |
| china | sichuan | lactobacillus casei | species | 11 | 1 |
| china | tianjin shi | lactobacillus casei | species | 474 | 0 |
| china | tibet | lactobacillus casei | species | 332 | 3 |
| china | xinjiang | lactobacillus casei | species | 2 | 0 |
| colombia | | lactobacillus casei | species | 1 | 0 |
| colombia | cundinamarca department | lactobacillus casei | species | 478 | 0 |
| denmark | | lactobacillus casei | species | 2 | 0 |
| denmark | capital region of denmark | lactobacillus casei | species | 388 | 0 |
| ecuador | | lactobacillus casei | species | 7 | 0 |
| egypt | | lactobacillus casei | species | 4 | 0 |
| estonia | | lactobacillus casei | species | 5 | 0 |
| finland | | lactobacillus casei | species | 1 | 0 |
| finland | | lactobacillus casei lca | no rank | 24 | 0 |
| finland | | lactobacillus casei lcy | no rank | 20 | 0 |
| finland | | lactobacillus casei t71499 | no rank | 112 | 0 |
| france | | lactobacillus casei | species | 174 | 0 |
| georgia | | lactobacillus casei | species | 1 | 0 |
| germany | | lactobacillus casei | species | 208 | 0 |
| germany | | lactobacillus casei subsp. casei atcc 393 | no rank | 1 | 0 |
| india | | lactobacillus casei | species | 71 | 0 |
| india | gujarat | lactobacillus casei | species | 2 | 0 |
| india | himachal pradesh | lactobacillus casei | species | 4 | 0 |
| india | kerala | lactobacillus casei | species | 1 | 0 |
| india | nagaland | lactobacillus casei | species | 3 | 0 |
| india | national capital territory of delhi | lactobacillus casei | species | 0 | 1 |
| india | odisha | lactobacillus casei | species | 1 | 0 |
| india | punjab | lactobacillus casei | species | 1 | 0 |
| india | tamil nadu | lactobacillus casei | species | 2 | 1 |
| india | west bengal | lactobacillus casei | species | 0 | 1 |
| indonesia | | lactobacillus casei | species | 7 | 0 |
| indonesia | jakarta | lactobacillus casei | species | 0 | 2 |
| iran | | lactobacillus casei | species | 27 | 0 |
| iran | fars province | lactobacillus casei | species | 2 | 0 |
| iran | tehran province | lactobacillus casei | species | 1 | 0 |
| iran | west azerbaijan province | lactobacillus casei | species | 1 | 0 |
| iraq | | lactobacillus casei | species | 4 | 0 |
| ireland | | lactobacillus casei | species | 118 | 0 |
| italy | | lactobacillus casei | species | 10 | 0 |
| italy | abruzzo region | lactobacillus casei | species | 0 | 1 |
| italy | molise region | lactobacillus casei | species | 54 | 0 |
| italy | sicily autonomous region | lactobacillus casei | species | 0 | 1 |
| japan | | lactobacillus casei | species | 3 | 0 |
| japan | kagoshima prefecture | lactobacillus casei | species | 1 | 0 |
| japan | kanagawa prefecture | lactobacillus casei | species | 1 | 0 |
| japan | tokyo prefecture | lactobacillus casei | species | 0 | 1 |
| kazakhstan | | lactobacillus casei | species | 1 | 0 |
| malaysia | | lactobacillus casei | species | 2 | 0 |
| mexico | | lactobacillus casei | species | 12 | 0 |
| new zealand | | lactobacillus casei | species | 1 | 0 |
| nigeria | | lactobacillus casei | species | 3 | 0 |
| norway | | lactobacillus casei | species | 2 | 0 |
| pakistan | | lactobacillus casei | species | 9 | 0 |
| peru | amazonas region | lactobacillus casei | species | 0 | 1 |
| poland | | lactobacillus casei | species | 1 | 0 |
| poland | greater poland province | lactobacillus casei | species | 1 | 0 |
| portugal | | lactobacillus casei | species | 11 | 0 |
| russia | | lactobacillus casei | species | 4 | 0 |
| saudi arabia | | lactobacillus casei | species | 4 | 0 |
| serbia | | lactobacillus casei | species | 2 | 0 |
| south africa | | lactobacillus casei | species | 4 | 0 |
| south korea | | lactobacillus casei | species | 8 | 0 |
| south korea | north chungcheong province | lactobacillus casei | species | 1 | 0 |
| south korea | seoul city | lactobacillus casei | species | 2 | 0 |
| south korea | south gyeongsang province | lactobacillus casei | species | 1 | 0 |
| spain | | lactobacillus casei | species | 2 | 0 |
| spain | castilla-la mancha | lactobacillus casei | species | 1 | 0 |
| spain | catalonia | lactobacillus casei | species | 0 | 1 |
| sudan | | lactobacillus casei | species | 2 | 0 |
| sweden | | lactobacillus casei | species | 1 | 0 |
| switzerland | | lactobacillus casei | species | 296 | 0 |
| taiwan | | lactobacillus casei | species | 6 | 1 |
| thailand | | lactobacillus casei | species | 129 | 0 |
| turkey | | lactobacillus casei | species | 5 | 0 |
| turkey | isparta province | lactobacillus casei | species | 1 | 0 |
| uganda | eastern region | lactobacillus casei | species | 1 | 0 |
| united kingdom | | lactobacillus casei | species | 1 | 0 |
| united states | | lactobacillus casei | species | 1 | 0 |
| united states | | lactobacillus casei crf28 | no rank | 117 | 0 |
| united states | california | lactobacillus casei | species | 0 | 1 |
| united states | california | lactobacillus casei ucd174 | no rank | 234 | 0 |
| united states | district of columbia | lactobacillus casei | species | 176 | 1 |
| united states | maryland | lactobacillus casei | species | 724 | 0 |
| united states | south carolina | lactobacillus casei | species | 0 | 1 |
| united states | utah | lactobacillus casei | species | 1 | 0 |
| united states | washington | lactobacillus casei | species | 1748 | 0 |
| united states | wisconsin | lactobacillus casei | species | 228 | 0 |
| united states | wisconsin | lactobacillus casei 12a | no rank | 2 | 0 |
| united states | wisconsin | lactobacillus casei 21/1 | no rank | 152 | 0 |
| united states | wisconsin | lactobacillus casei 32g | no rank | 86 | 0 |
| united states | wisconsin | lactobacillus casei m36 | no rank | 158 | 0 |
| united states | wisconsin | lactobacillus casei uw1 | no rank | 288 | 0 |
| united states | wisconsin | lactobacillus casei uw4 | no rank | 246 | 0 |
| uruguay | | lactobacillus casei | species | 1 | 0 |
| vietnam | | lactobacillus casei | species | 2 | 0 |