# List of Indiana state historical markers in Grant County

This is a list of the Indiana state historical markers in Grant County.
This is intended to be a complete list of the official state historical markers placed in Grant County, Indiana, United States by the Indiana Historical Bureau. The locations of the historical markers and their latitude and longitude coordinates are included below when available, along with their names, years of placement, and topics as recorded by the Historical Bureau. There are 11 historical markers located in Grant County.
Download coordinates as:
* KML
* GPX (all coordinates)
* GPX (primary coordinates)
* GPX (secondary coordinates)

## Historical markers

| Marker title | Year placed | Location | Topics |
| Battle of Mississinewa | 1947 | Southeastern corner of the junction of State Road 15 and County Road 600N near Marion 40°38′24″N 85°42′34″W﻿ / ﻿40.64000°N 85.70944°W﻿ / 40.64000; -85.70944﻿ (Battle of Mississinewa) | Military, American Indian/Native American |
| New Purchase Boundary (Treaty of St. Mary's) | 1966 | Northwestern corner of the Grant County Courthouse lawn at 401 S. Adams St. in Marion 40°33′31″N 85°39′26″W﻿ / ﻿40.55861°N 85.65722°W﻿ / 40.55861; -85.65722﻿ (New Purchase Boundary (Treaty of St. Mary's)) | Early Settlement and Exploration, American Indian/Native American, Government Institutions |
| Miami Indian Cemetery | 1972 | North of Marion on State Road 15, 1.1 miles west on County Road 600N 40°38′25″N 85°43′49″W﻿ / ﻿40.64028°N 85.73028°W﻿ / 40.64028; -85.73028﻿ (Miami Indian Cemetery) | Cemetery, American Indian/Native American |
| | 1988 | 210 W. North A Street in Gas City 40°29′20″N 85°37′2″W﻿ / ﻿40.48889°N 85.61722°W﻿ / 40.48889; -85.61722﻿ ([West Ward School]) | Buildings and Architecture, Education |
| Former Narrow Gauge Railroad/Railroad Construction | 1992 | Junction of E. 4th and McClure Streets in Marion 40°33′28″N 85°39′21.6″W﻿ / ﻿40.55778°N 85.656000°W﻿ / 40.55778; -85.656000﻿ (Former Narrow Gauge Railroad/Railroad Construction) | Transportation, Business, Industry, and Labor |
| J.W. Patterson House | 1995 | 203 E. Washington Street in Fairmount 40°24′57″N 85°38′57.6″W﻿ / ﻿40.41583°N 85.649333°W﻿ / 40.41583; -85.649333﻿ (J.W. Patterson House) | Buildings and Architecture, Science, Medicine, and Inventions |
| The Village of Trask | 1995 | Junction of State Road 26 and S. Wheeling Pike at Trask, 1.4 miles east of exit 55 from Interstate 69 40°25′22.6″N 85°31′23″W﻿ / ﻿40.422944°N 85.52306°W﻿ / 40.422944; -85.52306﻿ (The Village of Trask) | Historic District, Neighborhoods, and Towns |
| Marion Branch, NHDVS | 2011 | 1700 E. 38th St., Marion 40°25′22.6″N 85°31′23″W﻿ / ﻿40.422944°N 85.52306°W﻿ / 40.422944; -85.52306﻿ (The Village of Trask) | Military, Buildings and Architecture |
| Samuel Plato | 2014 | 723 West Fourth Street, Marion 40°33′28″N 85°40′4″W﻿ / ﻿40.55778°N 85.66778°W﻿ / 40.55778; -85.66778﻿ (Samuel Plato Marker) | Buildings & Architecture, Architect, African American |
| Weaver Settlement | 2020 | 2600 W 600 S, Marion 40°27′57″N 85°43′12″W﻿ / ﻿40.46583°N 85.72000°W﻿ / 40.46583; -85.72000﻿ (Weaver Settlement) | |
| Allen Temple | 2022 | Allen Temple AME Church, 3440 S. Washington St., Marion 40°31′41″N 85°39′44″W﻿ / ﻿40.52806°N 85.66222°W﻿ / 40.52806; -85.66222﻿ (Allen Temple AME Church) | African American, Religion |