to
Update
is a city in and the parish seat of St. Martin Parish, Louisiana, United States. It lies on Bayou Teche, sixteen miles south of Breaux Bridge, eighteen miles southeast of Lafayette, and nine miles north of New Iberia. The population was 6,989 at the 2000 census. It is part of the Lafayette Metropolitan Statistical Area.
St. Martinville is located at (30.125053, -91.830593).
According to the United States Census Bureau, the city has a total area of 3.0 square miles (7.8 km²), of which, 3.0 square miles (7.8 km²) of it is land and 0.33% is water.