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

The State of Indiana highlighted on the US map.
Indiana 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).

Colorful Indiana counties map showing counties, main cities, and neighboring states.
Indiana Counties Map with cities.

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:

CountyPopulationPer sq. kmLargest City
Adams County35,68540.65Decatur
Allen County381,839224.29Fort Wayne
Bartholomew County81,75977.57Columbus
Benton County8,6878.25Fowler
Blackford County12,13928.39Hartford City
Boone County69,83963.76Zionsville
Brown County15,44419.11Nashville
Carroll County20,28821.04Delphi
Cass County37,91835.52Logansport
Clark County120,185124.46Jeffersonville
Clay County26,39728.5Brazil
Clinton County33,01031.46Frankfort
Crawford County10,51113.28English
Daviess County33,28129.92Washington
Dearborn County50,49463.9Bright
Decatur County26,46627.43Greensburg
DeKalb County43,05945.82Auburn
Delaware County112,480110.76Muncie
Dubois County43,47439.29Jasper
Elkhart County206,314171.99Elkhart
Fayette County23,39342.01Connersville
Floyd County79,594206.97New Albany
Fountain County16,42216.02Attica
Franklin County22,76922.87Batesville
Fulton County20,40021.38Rochester
Gibson County33,01726.16Princeton
Grant County66,80262.29Marion
Greene County30,92422.01Linton
Hamilton County341,616334.45Carmel
Hancock County78,61699.21Greenfield
Harrison County39,51631.52Corydon
Hendricks County172,100163.31Plainfield
Henry County48,85748.14New Castle
Howard County83,349109.81Kokomo
Huntington County36,57236.9Huntington
Jackson County45,94834.79Seymour
Jasper County33,00622.77Rensselaer
Jay County20,57020.69Portland
Jefferson County33,00035.33Madison
Jennings County27,61928.32North Vernon
Johnson County159,739192.49Greenwood
Knox County36,36227.22Vincennes
Kosciusko County80,15158.23Warsaw
LaGrange County40,08540.77Lagrange
Lake County495,925383.86Hammond
LaPorte County112,18472.4Michigan City
Lawrence County45,13338.8Bedford
Madison County130,037111.1Anderson
Marion County969,542943.85Indianapolis
Marshall County46,17540.19Plymouth
Martin County9,88511.37Loogootee
Miami County36,10037.28Peru
Monroe County140,189137.2Bloomington
Montgomery County37,96729.05Crawfordsville
Morgan County71,39468.26Martinsville
Newton County13,86513.32Roselawn
Noble County47,29344.44Kendallville
Ohio County5,93126.58Rising Sun
Orange County19,75219.14Paoli
Owen County21,28021.32Spencer
Parke County16,31614.17Rockville
Perry County19,15119.37Tell City
Pike County12,22014.11Petersburg
Porter County172,353159.16Portage
Posey County25,30123.86Mount Vernon
Pulaski County12,49611.13Winamac
Putnam County36,83829.6Greencastle
Randolph County24,68121.07Winchester
Ripley County28,95325.04Batesville
Rush County16,70615.8Rushville
Scott County24,29049.26Scottsburg
Shelby County44,82542.1Shelbyville
Spencer County19,94919.41Santa Claus
St. Joseph County272,049229.45South Bend
Starke County23,27529.07Knox
Steuben County34,37942.99Angola
Sullivan County20,81417.97Sullivan
Switzerland County9,87017.27Vevay
Tippecanoe County185,961143.91Lafayette
Tipton County15,29022.66Tipton
Union County7,09817Liberty
Vanderburgh County179,695297.26Evansville
Vermillion County15,47723.26Clinton
Vigo County106,523101.9Terre Haute
Wabash County31,12029.13Wabash
Warren County8,4308.92Williamsport
Warrick County63,57563.78Boonville
Washington County28,02521.06Salem
Wayne County66,58863.99Richmond
Wells County28,10329.48Bluffton
White County24,59318.8Monticello
Whitley County34,04839.18Columbia City

Biggest Counties in Indiana by Population

Marion County

A monument stands in the middle of a roundabout in the middle of Indianapolis near sunset. © Sean Pavone/Shutterstock
Soldiers and Sailors Monument in Indianapolis, Indiana

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

An aerial view of the Lake County Courthouse in Crown Point, Indiana.© Robert Sarnowski/Shutterstock
Lake County Courthouse in Crown Point, Indiana

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

An aerial view of downtown Fort Wayne in Allen County, Indiana.© Real Window Creative/Shutterstock
Fort Wayne, Indiana

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

A street-level view of the Hamilton County Courthouse in Noblesville, Indiana on a sunny day.© Roberto Galan/Shutterstock
Hamilton County Courthouse in Noblesville, Indiana

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

An aerial view of buildings in the Notre Dame University campus surrounded by trees.© Grindstone Media Group/Shutterstock
Notre Dame University Campus in South Bend, Indiana

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

A low-angle view of the facade of the Ohio County Courthouse in Rising Sun, Indiana.© Warren LeMay/Wikimedia Commons | CC0 1.0 Universal
Ohio County Courthouse in Rising Sun, Indiana

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

A view of colorful building fronts on Union Street in Liberty, Indiana.© Roberto Galan/Shutterstock
Union Street in Liberty, Indiana

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

Water cascades over rocks in Warren County’s Fall Creek Gorge Nature Preserve.© Kenneth Keifer/Shutterstock
Fall Creek Gorge Nature Preserve in Warren County, Indiana

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

A low-angle view of the Tippecanoe County Courthouse under a cloudy sky.© Alex Krassel/Shutterstock
Tippecanoe County Courthouse in Lafayette, Indiana

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

A street-level view of the memorial facade on a clear day in Evansville, Indiana.© Roberto Galan/Shutterstock
Soldiers and Sailors Memorial Coliseum in Evansville, Indiana

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.

More About Indiana Counties: FAQs

What is the smallest county by land area in Indiana?

Ohio County is the smallest county in Indiana in terms of land area, covering 87.43 square miles (226.4 km2).

Which is the most affluent county in Indiana?

Hamilton County is the wealthiest in Indiana with a median annual household income of over $90,000.

Which county in Indiana is famous for its modern architecture and design?

Bartholomew County, particularly the city of Columbus, is renowned for its modern architecture and design.

Which Indiana county is known as the “RV Capital of the World”?

Elkhart County is often referred to as the “RV Capital of the World” due to its prominence in recreational vehicle manufacturing.