Recently, a chromium-based kagome metal $\mathrm{CsC}{\mathrm{r}}_3\mathrm{S}{\mathrm{b}}_5$ has attracted significant attention due to the coexistence of density-wave-like (DW-like) orders and unconventional superconductivity; however, the nature of the DW-like orders remains elusive. Here, we perform a scanning tunneling microscopy and spectroscopy study on multiple $\mathrm{CsC}{\mathrm{r}}_3\mathrm{S}{\mathrm{b}}_5$ crystals and identify a robust $4\times \sqrt{3}$ charge order (CO) on the $\mathrm{S}{\mathrm{b}}_2$-terminated surface, alongside other region-dependent charge modulations. Through comparative analysis and structural simulations, we attribute the $4\times \sqrt{3}$ CO to the coherent superposition of the underlying Sb lattice, a $2\times \sqrt{3}$ charge stripe, and additional fine-structural distortions. Our density functional theory calculations on bulk $\mathrm{CsC}{\mathrm{r}}_3\mathrm{S}{\mathrm{b}}_5$ suggest that, among the considered spin density wave (SDW) configurations, a $2\times \sqrt{3}$ SDW has the lowest energy, which will induce a $2\times \sqrt{3}$ charge modulation. This provides a possible bulk-derived scenario for the $2\times \sqrt{3}$ CO component. The possible factors influencing the region-dependent charge modulations are also discussed. Our study provides a microscopic picture for the abundant COs in $\mathrm{CsC}{\mathrm{r}}_3\mathrm{S}{\mathrm{b}}_5$ and highlights the propensity of magnetic kagome metals to host multiple, nearly degenerate, and competing electronic orders.

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• Charge order
• Kagome metal
• DFT+U
• Scanning tunneling microscopy