On November 6, 2007, it became the fifth incorporated city in Grimes County after a residential vote.
Iola is believed to have been named for Edward Ariola, one of Stephen F. Austin's colonists who settled in the vicinity in 1836. In 1852 the community's first church, Zion Methodist, was constructed; the building also served as a schoolhouse. The settlement's first gristmill, Monroe's Gin, began operating during the 1860s. The post office opened in 1871 and, though discontinued the next year, was permanently reestablished in 1877. A Masonic Lodge was formed in 1876. By the 1880s the town had several churches, cotton gins, and gristmills. The population stood at 109 by 1890.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →
From Wikimedia Commons (1), Wikipedia, U.S. Geological Survey historical maps, the US Post Offices dataset (Blevins & Helbock) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.
2009
