Where is Decatur, Indiana

Decatur, Indiana is a small city in northeastern Indiana, southwest of Fort Wayne. It sits along the St. Marys River and serves as the county seat of Adams County. The city is about 25 miles southwest of Fort Wayne and is known for its historic downtown, local churches, parks, and connection to the region's farming history.

Location Map of Decatur, Adams County, Indiana

About Map: The map shows the location of Decatur in Adams County, in the U.S. state of Indiana.

Decatur Map, Indiana

Where is Decatur Located?

Decatur is a city located in Adams County, Indiana, the United States. It is the county seat of Adams County and lies in northeastern Indiana near the Ohio state line. Decatur is about 25 miles southwest of Fort Wayne, 40 miles northwest of Lima, Ohio, and roughly 100 miles north of Indianapolis. The city is located at approximately 40.8306° North latitude and 84.9291° West longitude. Decatur covers about 5.06 square miles (13.11 sq km) and had 9,335 residents in the 2020 Census. The St. Marys River flows through the city and has played an important role in its history and landscape. Decatur was founded in the 1830s and incorporated in 1853. The arrival of railroads helped the community grow as a trading and transportation center for surrounding farms. Today, agriculture remains an important part of the local economy. Decatur has several historic churches and buildings, along with parks and recreational areas. The Adams County Courthouse is a prominent landmark in the center of the city, while nearby Lake Everett provides opportunities for fishing, boating, and outdoor recreation.

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Decatur City Facts

Distance from Decatur, IN to Nearby Cities

• Monroe, IN – 10 miles (16 km)
• Berne, IN – 10 miles (16 km)
• Geneva, IN – 15 miles (24 km)
• Bluffton, IN – 15 miles (24 km)
• Ossian, IN – 20 miles (32 km)
• Huntington, IN – 30 miles (48 km)
• Fort Wayne, IN – 25 miles (40 km)
• Van Wert, OH – 25 miles (40 km)
• Paulding, OH – 35 miles (56 km)
• Lima, OH – 45 miles (72 km)
• Wapakoneta, OH – 55 miles (89 km)
• Marion, IN – 55 miles (89 km)
• Findlay, OH – 70 miles (113 km)
• Toledo, OH – 100 miles (161 km)
• Indianapolis, IN – 105 miles (169 km)
• South Bend, IN – 115 miles (185 km)
• Columbus, OH – 135 miles (217 km)

Top Attractions in Decatur

• Adams County Courthouse – Historic county courthouse located in downtown Decatur and an important local civic landmark.
• Monroe Street Historic District – Area with historic homes and buildings that reflect Decatur's 19th- and early 20th-century growth.
• St. Marys River – River flowing through Decatur and the surrounding countryside, providing scenic views and wildlife habitat.
• Lake Everett – Nearby lake used for fishing, boating, picnicking, and other outdoor recreation.
• Decatur City Park – Community recreation area with green space, walking areas, playgrounds, and sports facilities.
• Adams County Historical Museum – Local museum preserving artifacts, photographs, and stories from Adams County history.
• Swiss Heritage Village and Museum – Nearby Berne attraction featuring historic buildings, artifacts, and exhibits about the area's Swiss-German heritage.
• Ouabache State Park – Nearby state park with hiking trails, camping, fishing, wildlife viewing, and forested areas.

Airports Near Decatur

• Fort Wayne International Airport (FWA) – 25 miles
• Decatur Airport (DCR) – 5 miles
• Allen County Regional Airport (AID) – 35 miles
• Van Wert County Airport (VNW) – 30 miles
• Lima Allen County Airport (AOH) – 45 miles

Sources:

Population and area data sourced from the United States Census Bureau (2020 Census). General city information referenced from the official City of Decatur website and local government records.

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