The school district is known as the Mexico Academy and Central School District (MACS).
The Stillman Farmstead, Slack Farmstead, and Asa and Caroline Wing House are listed on the National Register of Historic Places. Starr Clark was leader in the Underground Railroad and was the station master of the area. Asa Wing was a prominent speaker who traveled across the state urging voters to pressure their representatives to pass new laws prohibiting ownership of slaves. As early as 1835 citizens signed petitions which were sent to Washington requesting the abolishment of slavery. Mexico also played its part in the abolition of slavery. An elementary school continued in New Haven and Palermo while the rest of the students were bussed to Mexico. This occurred in 1936 when 31 districts in the towns of Mexico, Palermo and New Haven closed to make Mexico Academy and Central School. Mexico was the first school to centralize in Oswego county. Mexico was the first school of secondary education to be founded in what is now Oswego County. This was called "The Academy" and was admitted to the state system by the regents in 1833. In 1822 a two-story brick school housing grades on the first floor and high school on the second. The number increased to 19 by 1895 as new settlements developed. In 1813 a system of public schools was established with 14 districts. More than one-half of the settlers lost their lives to these scourges during the first 20 years of the settlement. Between 18 a cholera-like disease spread throughout the region, a fatal form of dysentery, as well as ague and bilious fevers. The business has since evolved into the world-famous Grandma Brown's Baked Beans. Whitney joined the firm, forming Brown-Whitney-Brown (BWB). Earl Brown died in 1938 and shortly after Richard G. The business grew and relocated to the second story of the building at the south east corner of South Jefferson and Main Streets. They sold so well that her husband Earl and her son Robert E. Lulu Brown began making pans of baked beans to sell in grocery stores in 1937.
Lewis Miller invented the spring wagon and the high quality of these wagons made them famous all over the county. Mexico's early businesses included saw mills, oil-mills, gristmills, asheries, tanneries, blacksmiths, tinsmiths, coopers, cheese plants, cloth-dressings, distilleries, shoe-shops, hotels, general merchandise, and jewelers. The presence of roads, log cabins, frame houses, and businesses encouraged growth. Settlers grew quickly in both the Town and Village of Mexico. George Scriba also later opened roads traveling from Mexico Bay and Mexico Point from what is now Mexico Point State Park to present-day Constantia, as well as a highway to present-day Oswego. In December 1794, George Frederick William Augustus Scriba purchased and patented a large tract of land subsequently becoming a second Mexico, hence the Village of Mexico and the Town of Mexico. The original organization of the proposed Mexico County and a town of that name was abandoned for a time. It was to include present day Oswego and Jefferson Counties. The first Mexico (a proposed county), with all the surrounding towns, was originally created from Town of Whitestown, Oneida County, New York, on Apby the State Land Commissioner.