The entry of Ca²⁺ through low-voltage-activated (LVA) Ca²⁺ channels plays a crucial role in neuronal excitability and communication. However, the spatial distribution and functional consequences of this entry remain unclear. Using P12 laterodorsal (LD) thalamic neurons, we employed whole-cell and cell-attached configurations along with calcium imaging to analyze LVA fast-inactivating (LVAf) Ca²⁺ channel activity. Our results reveal a significant difference in channel distribution between bipolar and multipolar neurons. While bipolar neurons exhibit a uniform and sparse distribution of LVAf Ca²⁺ channels, multipolar neurons demonstrate clustered multichannel domains with 3-7 active channels per domain. Charge entry through these channels was voltage-dependent, with saturation occurring at higher densities in multipolar neurons. Calcium imaging further confirmed a heterogeneous distribution of Ca²⁺ influx, with local hot spots corresponding to channel clusters. These findings suggest that LVAf Ca²⁺ channel distribution is structurally regulated and varies by neuronal morphology, influencing neuronal excitability and signaling.