The objective of this study was to evaluate udder hygiene score (UHS), locomotion score (LS), and their relationships to bulk tank somatic cell count (BTSCC) group and bulk tank somatic cell score (BTSCS). Data from 4,837 cows were obtained from 94 Kentucky dairy herds participating in the Southeast Quality Milk Initiative project (USDA-NIFA-AFRI grant no. 2013–68004–20424). Each herd was visited once between June 2014, and June 2015. Herds were divided into 3 BTSCC groups: low = mean BTSCC ≤210,000 cells/mL (n = 28), medium = 210,000 < BTSCC <380,000 cells/mL (n = 50), and high = BTSCC ≥380,000 cells/mL (n = 10). Herd size ranged from 35 to 2,500 lactating cows. Animals from each herd were scored for LS and UHS once. A 3-point scale was used for LS where 1 = sound cow, 2 = moderately lame cow, and 3 = severely lame cow. Udder hygiene was scored using a 4-point scale where 0 = less than 50% of the udder covered with fresh splashes of manure, and 3 = entire udder covered with dry manure. Yearly mean BTSCS was calculated from monthly milk processor BTSCC data where BTSCS = log₂ (BTSCC/100,000) + 3. The FREQ procedure of SAS (Version 9.3 SAS Institute, Inc., Cary, NC) and a Chi-squared analysis were used to examine the relationship between BTSCC group and UHS or LS. The MIXED procedure of SAS was used to determine the relationship of UHS, LS, and their interaction to BTSCS. In the Chi-squared analysis, a greater percentage of the lactating herd with a UHS = 0 occurred in low BTSCC herds (68%) compared with medium (60%) and high (58%) BTSCC herds (P < 0.01). A greater percentage of the lactating herd with a LS = 1 occurred in low BTSCC (77%) compared with medium (69%) and high (67%) BTSCC herds (P < 0.01). In the mixed model, no significant interaction between UHS and LS was found (P = 0.28). As LS decreased BTSCS decreased (P < 0.02), whereas UHS had no significant relationship to BTSCS (P = 0.28). The results of this study suggested lower lameness and cleaner udders were associated with lower BTSCC and BTSCS.