Geography of Bremer County, Iowa

Bremer County, located in northeastern Iowa, is characterized by its diverse geography, agricultural landscapes, and natural beauty. From the rolling hills to the meandering rivers, the county’s geography plays a significant role in shaping its economy, ecology, and cultural heritage. In this comprehensive overview, we’ll explore the geography, climate, rivers, lakes, and other notable features of Bremer County.


According to Harvardshoes, Bremer County covers an area of approximately 439 square miles in northeastern Iowa. It is bordered by Butler County to the north, Black Hawk County to the south, Chickasaw County to the west, and Fayette County to the east. The county seat is Waverly, while other significant communities include Tripoli, Readlyn, and Denver.

The landscape of Bremer County is predominantly rolling hills and fertile farmland, with the Shell Rock River and its tributaries winding through the county. The county lies within the Eastern Iowa Plains region of Iowa, characterized by its gently sloping terrain and rich soils. Agriculture, particularly the cultivation of corn, soybeans, and oats, is the primary land use in the county.


Bremer County experiences a humid continental climate, with warm, humid summers and cold, snowy winters. The region’s climate is influenced by its location in the central United States and its proximity to the Great Lakes and Mississippi River.

Summers in Bremer County are warm and humid, with average high temperatures ranging from the upper 70s to low 80s Fahrenheit (around 25-28°C). High humidity levels can make the temperature feel even warmer, particularly during heatwaves in July and August. Thunderstorms are common during the summer months, bringing heavy rainfall and occasional severe weather.

Winters in Bremer County are cold and snowy, with average high temperatures in the 20s and 30s Fahrenheit (around -6 to -1°C). Snowfall is frequent, particularly in December and January, with average annual snowfall ranging from 30 to 40 inches (75-100 cm). The region can also experience occasional cold snaps, with temperatures dropping below freezing for extended periods.

Spring and fall are transitional seasons, with gradually changing temperatures and blooming vegetation. These seasons bring mild, pleasant weather, making them ideal times to explore Bremer County’s outdoor attractions and cultural events.

Rivers and Lakes

Bremer County is home to several rivers, creeks, and lakes, which play important roles in both the region’s ecology and human activities such as recreation, fishing, and agriculture.

The Shell Rock River, one of the major rivers in northeastern Iowa, flows through the central part of Bremer County, providing habitat for diverse wildlife and supporting recreational activities such as fishing, kayaking, and birdwatching. The river is known for its scenic beauty, clear waters, and abundant fish populations.

Other significant rivers in Bremer County include the Wapsipinicon River, which forms part of the county’s eastern border, and the Cedar River, which flows through the southern part of the county. These rivers and their tributaries provide habitat for various species of fish, birds, and other wildlife, as well as opportunities for outdoor recreation and scenic beauty.

Bremer County also contains several lakes and reservoirs, including Cedar Lake and George Wyth Lake, which offer opportunities for fishing, boating, and picnicking. These lakes provide additional recreational opportunities for residents and visitors alike, as well as important habitats for waterfowl and other wildlife.

Natural Attractions

In addition to its rivers and lakes, Bremer County boasts several natural attractions that showcase the region’s beauty and biodiversity.

Wapsipinicon State Park, located near the town of Tripoli, is a popular destination for outdoor recreation and nature appreciation. The park features wooded trails, scenic overlooks, and a spring-fed lake, as well as opportunities for hiking, picnicking, and camping.

Bremer County is also home to several conservation areas and wildlife refuges, including the Bremer Wildlife Area and the Hawkeye Wildlife Management Area. These areas provide habitat for a variety of wildlife, including white-tailed deer, wild turkeys, and migratory birds, as well as opportunities for hunting, birdwatching, and nature photography.


Bremer County, Iowa, offers a diverse array of geographical features, including rolling hills, meandering rivers, and scenic lakes. The region’s humid continental climate, fertile soils, and natural resources make it a desirable destination for residents and visitors alike. Whether it’s fishing on the Shell Rock River, exploring the trails of Wapsipinicon State Park, or enjoying a day at the lake, Bremer County invites visitors to experience the best that northeastern Iowa has to offer.