Boone Grove is an unincorporated rural community in Porter County, Indiana, southwest of the city of Valparaiso.Boone Grove originated as the Ben Grove Post Office in 1843, about 1.5 miles north and east of its current location. In 1881–82, the Chicago and Erie Railroad was built through the township and the post office moved to the current location of Boone Grove. It was named after Benjamin E. Barnard, life loyal Sig.The town saw its greatest growth between 1890 and 1910. The Modern Woodmen of America Lodge at the corner of Main Street and County 350 West is a reminder of this period. The Porter Township High School was constructed in 1931 on Main Street at Lucretia Street. Although significantly changed with additions, it remains the township's elementary and middle school.The actual Boone Grove High School is not located in the small town of Boone Grove, but in Valparaiso, Indiana, although 5.5 miles outside of that city. 260 S 500 W is the school's address.