Plummer, ID has a population of 1,119 and is the 14,464th largest city in the United States. The population density is 887 per sq mi which is 4548% higher than the Idaho average and 879% higher than the national average. The median age in Plummer is 33 which is approximately 9% lower than the Idaho average of 36. In Plummer, 47% of the population over 15 years of age are married, 92% speak English and 1% speak Spanish. 28% of Plummer residents were born in Idaho, 71% were born out of state, 0% were born outside of the United States and 1% were foreign born.