Fannin is an unincorporated community located in northwest Rankin County, Mississippi, United States, near the cities of Jackson, Flowood, Brandon, and Ridgeland, loosely bordered by the Pearl River (presently the Ross Barnett Reservoir following impoundment) and Pelahatchie Creek.
The decline of the railroads, the impoundment of the Pearl River, and the general migration of settlers toward nearby cities led to Fannin's eventual dis-incorporation and transition into a mostly rural residential community (though a few small businesses remain).
A community college was established by a local chapter of Masons, which housed in its tower a silver bell, cast from metal of 200 silver-dollars donated by wealthy residents.
From about 1930 to present-day, Fannin slowly devolved from an established town, into a rural farm community, and finally into little more than a geographic point of reference and curiosity known by local residents.
The turning point of Fannin's decline can be traced, largely, back to the mid-1950s, following the dismantlement of the rail-line, when the Pearl River was impounded to create the Ross Barnett Reservoir in an effort to provide a drinking water resource for the nearby city of Jackson.