New Chapel Hill is a city in Smith County, Texas, United States.

According to the United States Census Bureau, the city has a total area of 2.5 square miles (6.4 km2), all land.

As of the 2020 United States census, there were 620 people, 235 households, and 182 families residing in the city.

19.0% of all households were made up of individuals, and 8.3% had someone living alone who was 65 years of age or older.

None of the families and 2.6% of the population were living below the poverty line, including no under eighteens and 12.7% of those over 64.