Trimble, MO has a population of 660 and is the 17,829th largest city in the United States. The population density is 1,326 per sq mi which is 1435% higher than the Missouri average and 1364% higher than the national average. The median age in Trimble is 38 which is approximately 2% lower than the Missouri average of 38. In Trimble, 55% of the population over 15 years of age are married, 97% speak English and 3% speak Spanish. 62% of Trimble residents were born in Missouri, 35% were born out of state, 1% were born outside of the United States and 2% were foreign born.