No. Tanzania is significantly larger than South Sudan in both land area and population.
| Metric | Tanzania | South Sudan |
|---|---|---|
| Land Area | 947,300 km² (365,756 sq mi) | 644,329 km² (248,777 sq mi) |
| Population (est.) | ~63 million | ~12 million |
Tanzania is about 1.5 times the size of South Sudan and has over five times the population. South Sudan ranks 41st in Africa by area; Tanzania ranks 13th.