Geography of Clark County, Indiana

Clark County, located in southern Indiana, is a region with a rich history, diverse geography, and vibrant communities. From its rolling hills and fertile valleys to its meandering rivers and picturesque parks, the county’s landscape offers a variety of natural attractions and outdoor recreational opportunities. In this comprehensive overview, we will explore the geography, climate, rivers, lakes, and other notable features of Clark County.


According to Gradinmath, Clark County covers an area of approximately 375 square miles in southern Indiana, making it one of the smaller counties in the state by land area. It is bordered by the Ohio River to the south, Floyd County to the west, Scott County to the north, and Jefferson County to the east. The county seat is located in the city of Jeffersonville, while other significant communities include Clarksville, Sellersburg, and Charlestown.

The geography of Clark County is characterized by its rolling hills, fertile valleys, and meandering rivers. The region lies within the Interior Low Plateaus physiographic region, which encompasses much of the central and southern United States. The landscape is largely the result of erosion and deposition processes that have shaped the land over millions of years.

The county’s topography is varied, with elevations ranging from around 400 feet above sea level in the river valleys to over 900 feet in the upland areas. The Ohio River forms the county’s southern border and serves as an important transportation route, as well as a source of water for irrigation, drinking water, and recreation.


Clark County experiences a humid subtropical climate, with four distinct seasons characterized by hot, humid summers and cold, snowy winters. The region’s climate is influenced by its inland location, its relatively low elevation, and its position within the Ohio River Valley.

Summers in Clark County are typically warm and humid, with average high temperatures in the 80s Fahrenheit (around 27-32°C). High humidity levels during the summer months can make the heat feel more intense, particularly in July and August. Thunderstorms are common during the summer, bringing brief but intense rainfall and occasional gusty winds.

Winters in Clark County are cold and snowy, with average high temperatures in the 30s and 40s Fahrenheit (around 0-7°C). The region experiences frequent snowfall during the winter months, particularly in December, January, and February, which can accumulate to significant depths. Freezing temperatures are common during the winter, and frost can occur as early as October and as late as April.

Spring and fall are transitional seasons, with gradually changing temperatures and fluctuating weather patterns. These seasons bring milder weather and occasional rainfall, making them ideal times to explore Clark County’s outdoor attractions and cultural events.

Rivers and Lakes

Clark County is bordered to the south by the Ohio River, one of the major waterways in the United States. The Ohio River serves as an important transportation route and source of water for the region, as well as a popular destination for boating, fishing, and other recreational activities.

In addition to the Ohio River, Clark County is crossed by several smaller rivers and creeks, including Silver Creek, Fourteenmile Creek, and Fourteenmile Creek. These waterways provide habitat for various species of fish, birds, and other wildlife, as well as opportunities for outdoor recreation such as fishing, kayaking, and canoeing.

While Clark County does not contain any significant natural lakes, there are several man-made reservoirs and ponds scattered throughout the region. These water bodies provide opportunities for fishing, boating, and picnicking, as well as important habitats for waterfowl and other wildlife.

Natural Attractions

Clark County boasts several natural attractions and outdoor recreational areas that showcase the region’s beauty and natural diversity.

Clark State Forest, located in the northern part of the county, is Indiana’s oldest state forest and offers opportunities for hiking, camping, fishing, and wildlife viewing. The forest is home to a variety of plant and animal species, including oak-hickory forests, wetlands, and limestone bluffs.

Charlestown State Park, situated along the Ohio River, is another popular destination for outdoor enthusiasts. The park features rugged terrain, scenic overlooks, and miles of hiking trails, as well as opportunities for camping, picnicking, and birdwatching.


Clark County, Indiana, offers a diverse array of geographical features, including rolling hills, fertile valleys, and meandering rivers. The region’s humid subtropical climate, natural beauty, and outdoor recreational opportunities make it a desirable destination for residents and visitors alike. Whether it’s exploring the banks of the Ohio River, hiking in Clark State Forest, or picnicking in Charlestown State Park, Clark County invites visitors to experience the best that southern Indiana has to offer.