Indiana Counties Map

Nestled in the heart of the Midwestern United States, Indiana is a state known for its vast farmlands, professional auto racing scene, renowned universities, and more. Known as the Hoosier State, Indiana can be divided into 92 counties, each of which makes its own contributions to the state’s unique identity.

Indiana (IN) on the US Map

In this post, we’ll learn about some of the most interesting counties in Indiana, starting with the most populous. Below is an Indiana Counties Map that details each of the state’s counties and their major cities. Read on to learn more about the 92 counties of Indiana.

Map of Indiana Counties

Below is a map of the 92 counties of Indiana (you can click on the map to enlarge it and to see the major city in each county).

Interactive Map of Indiana Counties

Click on any of the counties on the map to see its population, economic data, time zone, and zip code (the data will appear below the map). Data is sourced from the US Census 2021.

List of the Counties of Indiana:

Biggest Counties in Indiana by Population

Marion County

Marion County, located in the heart of Indiana, is the state’s most populous county. Home to the vibrant capital city of Indianapolis, Marion County is an economic, cultural, and political hub. The bustling urban center of the city drives the state’s economy and offers a diverse range of opportunities for entertainment and employment.

Also the county seat, Indianapolis is renowned for hosting major sporting events like the Indianapolis 500 and the 2012 Super Bowl, drawing visitors from across the nation. Beyond sports, the city boasts a thriving arts and cultural scene, with venues like the Eiteljorg Museum of American Indians and Western Art and the Indianapolis Museum of Art at Newfields.

Marion County’s economic significance extends to its role as a major transportation and logistics hub, thanks to its central location. Indianapolis benefits from a diversified economy with education, health care, and finance making up some of its most productive sectors. The county’s diverse neighborhoods, from downtown skyscrapers to suburban communities, provide a wide range of living options.

While Marion County is known for its urban energy, it also offers green spaces and more than 200 parks for residents to enjoy. Eagle’s Crest Nature Preserve is an especially good location for observing birdlife. 

Lake County

Situated in the northwest corner of Indiana, Lake County borders Lake Michigan and is part of the Chicago metropolitan area. With a population exceeding 500,000 residents, it ranks as one of the most densely populated counties in the state and the second-most populous overall.

The county seat, Crown Point, serves as a central administrative and cultural hub. Crown Point’s historic downtown area, anchored by the historic courthouse, adds a touch of charm to the region and provides plenty to see for history buffs. 

Lake County’s proximity to the Chicago metropolitan area makes it a great location for commuters, offering easy access to the bustling job market and cultural attractions of the Windy City.

Lake County boasts a diverse and vibrant community, reflecting the influences of both Indiana and Illinois. Residents enjoy a mix of urban amenities and suburban tranquility, with numerous parks and recreational areas for outdoor enthusiasts. 

Additionally, Lake County is known for its thriving arts scene, with theaters, galleries, and cultural events that contribute to the region’s cultural vibrancy. The Lake County Fair is an annual event that takes place each August and attracts both visitors and locals. 

Allen County

Nestled in the northeastern part of Indiana, Allen County is a vibrant region known for its blend of urban amenities and a welcoming community atmosphere. It’s also one of Indiana’s most populous counties, with a population exceeding 380,000 residents.

Fort Wayne is the county seat and Indiana’s second-largest city, anchoring Allen County’s cultural and economic landscape. The city is characterized by its diverse neighborhoods, historic districts, and a robust downtown area. The city’s history is well documented at the History Center of Fort Wayne, located in the 1893 City Hall Building.

Another important feature of Fort Wayne is that it is home to several educational institutions, including Purdue University Fort Wayne (PFW), which enriches the county’s academic environment and provides employment opportunities.

Allen County’s economic significance is underscored by a diverse range of industries, including healthcare, manufacturing, and technology. The presence of major employers and a strong job market make it an attractive destination for professionals and families alike.

In addition to its urban offerings, Allen County boasts numerous parks, cultural venues, and recreational opportunities. The Fort Wayne Children’s Zoo and the Fort Wayne Museum of Art are just a few of the attractions in the county.

Hamilton County

Another of Indiana’s most populous counties is Hamilton County, located just north of Marion County near the center of the state. Formed in 1823, the county is named after Alexander Hamilton, the first secretary of the treasury. The county benefits from its proximity to the state capital and has experienced substantial growth in recent decades.

Noblesville, the county seat, exemplifies Hamilton County’s charm with its historic downtown and many zones of historical significance. The county’s strategic location along major highways has made it an attractive destination for businesses, contributing to a robust local economy.

Hamilton County is renowned for its exceptional school systems, making it a sought-after location for families. The county’s numerous parks, trails, and recreational facilities provide ample opportunities for outdoor activities and community engagement.

The county’s retail and dining scene has also flourished, with premier shopping centers and diverse culinary offerings. Cultural attractions, such as the Center for the Performing Arts in Carmel, enhance the area’s cultural offerings.

St. Joseph County

St. Joseph County is the fifth-most populous county in the state of Indiana. Often referred to as St. Joe County by its residents, the county was founded in 1830 and is named after the St. Joseph River, which flows through the county. It is located in the northern part of Indiana and is characterized by its rich history and vibrant communities.

South Bend, the county seat and largest city in the county, is perhaps best known as the home of the University of Notre Dame, which adds a unique cultural and educational dimension to the area. South Bend has been the county seat since 1831.

St. Joseph County’s history is intertwined with the growth of the University of Notre Dame and the city of South Bend, contributing to a diverse and dynamic population. Prior to its status as a county, the land had been inhabited by Native Americans for many years. These include the Miami and Potawatomi tribes, the latter of which were forcibly removed in the 1840s.

The scenic beauty of St. Joseph County is also worth mentioning, with parks, trails, and cultural attractions like the Studebaker National Museum. The county’s commitment to preserving its historical landmarks, combined with its forward-thinking approach, makes it a compelling part of Indiana’s landscape.

Smallest Counties in Indiana by Population

Ohio County

It may have the name of another state, but Ohio County is located in the southeastern corner of Indiana. It’s also the state’s smallest county in terms of population. The region of the state is picturesque and has a rural atmosphere that lends it charm.

Ohio County’s rural character is defined by its rolling hills, forests, and the river that runs through it, making it an ideal destination for outdoor enthusiasts and nature lovers. It’s also known as the navy bean capital of Indiana.

Rising Sun, the county seat, is a quaint town that overlooks the Ohio River, providing stunning views and a tranquil atmosphere. It’s also home to the Rising Star Casino, one of the top attractions in the area, and several arts-related businesses have also settled in the city.

The county’s economy has roots in agriculture and manufacturing, and it has a close-knit community that values its historical heritage. The Rising Sun Historic District, with its well-preserved 19th-century architecture, offers a glimpse into the past. 

Residents and visitors can explore attractions like the Ohio County Historical Museum and partake in local events that celebrate the county’s heritage. 

Union County

Found in the eastern part of Indiana, Union County is a small but tight-knit community that boasts a strong agricultural industry. With a small population that reflects its rural character, it offers a peaceful retreat from the hustle and bustle of urban living. The county was established in 1821, and its county seat is Liberty.

Liberty is a charming town with a picturesque courthouse square that’s situated just 5 miles (8 km) from the Ohio border. Union County’s landscape is characterized by rolling farmlands, woodlands, and scenic byways, creating an inviting environment for those seeking a quieter pace of life. 

The county provides access to Whitewater Memorial State Park, which is an area with boating, swimming, fishing, and camping opportunities. Union County is also known for its dedication to preserving its historical landmarks, with sites like the Union County Historical Society Depot Museum offering a wealth of information.

While the county may be small in population, it is rich in community spirit. Residents and visitors can enjoy a variety of local festivals, such as the Harvest Festival and the Union County Fair, which celebrate the county’s heritage. 

Warren County

Another county in Indiana with a relatively small population is Warren County, located in the western part of the state. The county was created from Fountain County in 1827, and its county seat is Williamsport, which is the largest of the county’s four incorporated towns. It has the second lowest population density in Indiana after Benton County.

Williamsport is home to the “Tower House,” which is the surviving of the two Kent and Hitchens Houses that are listed on the National Register of Historic Places. The town aso hosts a number of community events for residents to stay connected and involved. The nearby Fall Creek Gorge Nature Preserve is a beautiful scenic area.

Agriculture is central to the county’s identity, and the fertile soils of the Wabash Valley support a thriving farming community. The county’s commitment to preserving its rural heritage is evident in its annual events, such as the Warren Area Antique Tractor and Engine Show, which showcase its agricultural roots.

Notable Indiana Counties

Tippecanoe County

In north-central Indiana, Tippecanoe County stands as a beacon of education and historical significance. Officially founded in March 1826, the county seat and largest city in Tippecanoe County is Lafayette. The name of the county comes from a transcription of the Miami Tribe name for a type of carp found in the Tippecanoe River.

The prominence of Tippecanoe County is centered around the renowned Purdue University in West Lafayette, a thriving hub of academics and research. Purdue’s impact extends far beyond the county’s borders, shaping Indiana’s educational landscape, contributing to advancements in various fields, and providing employment opportunities.

The county’s historical importance is storied, consisting of the Battle of Tippecanoe in 1811, a pivotal moment in American history. Sites commemorating this battle, such as the Tippecanoe Battlefield Park, invite visitors to delve into the region’s past.

In addition to academia and history, the county’s natural beauty, with its parks, trails, and the scenic Wabash River, provides opportunities for outdoor enthusiasts. Events like the Feast of the Hunters’ Moon, held at Fort Ouiatenon, offer a glimpse into the region’s frontier heritage.

Vanderburgh County

Located in the southwestern corner of Indiana, Vanderburgh County stands out for its unique blend of history, industry, and vibrant community life. Its largest city, Evansville, serves as a bustling economic and cultural center, making the county a notable region within the state.

One of Vanderburgh County’s distinctive qualities is its prime location along the Ohio River. This strategic position has historically played a crucial role in the county’s development, facilitating transportation and trade. Today, it continues to contribute to the county’s economic vitality.

Evansville, often referred to as the “River City,” is the county seat and is celebrated for its festivals and events, which highlight the rich culture of the area. The West Side Nut Club Fall Festival, one of the largest street festivals in the United States, is a prime example of the community’s vibrant spirit.

While Vanderburgh County embraces modernity, it also cherishes its historical heritage. The Angel Mounds State Historic Site, an ancient Native American settlement, offers a glimpse into the county’s past, while the Evansville Museum of Arts, History, and Science showcases its cultural evolution.

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