New Boston, TX has a population of 4,720 and is the 6,717th largest city in the United States. The population density is 1,253 per sq mi which is 1193% higher than the Texas average and 1283% higher than the national average. The median age in New Boston is 36 which is approximately 5% higher than the Texas average of 34. In New Boston, 51% of the population over 15 years of age are married, 97% speak English and 1% speak Spanish. 67% of New Boston residents were born in Texas, 30% were born out of state, 1% were born outside of the United States and 3% were foreign born.