Seven different plant population densities were tried on the hot pepper cultivar, 'West Indies Red', in two important trials, one was done in 1998 and the other in 1999 in Barbados. The population densities ranged from 5,744 plants up to 40,000 plants per hectare. The results showed a linear increase in yields as the plant population density increased. However, the yield from 30,000 plants per hectare did not differ significantly from that obtained from 40,000 plants per hectare. The yield per hectare from the highest plant population density of 40,000 plants was 123% higher than the yield from the farmer practice (9,570 plants/ha). The changes in treatments did not affect berry shapes and sizes. However, the plants grew taller and narrower as the population density increased.