Camp Harlan-Camp McKean Historic District

KILJ (1130 AM) is a commercial radio station serving the Mount Pleasant, Iowa area. The station primarily broadcasts a country music format. KILJ is licensed to KILJ, Inc. In addition to the music, the station provides national, state and local news, along with high school and college sports, weather, and grain and livestock markets. Prior to 1984, the station's callsign was KKSI. When it was purchased by the owners of KILJ-FM, it was changed to KILJ.

The former Second Baptist Church is a historic building located in Mount Pleasant, Iowa, United States. The First Colored Baptist Church of Mt. Pleasant, later Second Baptist Church, was founded in the summer of 1863 by members of First Baptist Church for the education and worship of the community's African American population. The congregation is also referred to as the "African Baptist Church". It is possible that this building was the original Methodist Episcopal church building constructed in 1843. It is believed that it was moved here in 1856 or 1857 for a newly established congregation of the Methodist Protestant Church. Either that or the main part of this small frame church was built here at that time. Regardless, the Methodist Protestant congregation did not succeed and the property was sold to First Baptist Church in January 1864 for use by the "Colored Baptist Church."Because the local school district integrated their schools in 1867, this building was no longer used for a school. They had a basement built under the church for social events in 1914. It is less certain when the entry vestibule was built onto the front of the building. It could have been added in 1914 when the basement was built, but it seems to have been in place by 1930. Second Baptist Church continued to worship here until 2009 when they moved to a different building. They donated this building to the Mount Pleasant Historic Preservation Commission in 2013. It was listed on the National Register of Historic Places in 2014.

The George and Margaret Cooper House is a historic building located in Mount Pleasant, Iowa, United States. It is a fine example of the Italianate style, which was a popular style for residential architecture in Mount Pleasant from the 1850s to the mid-1880s The two-story brick house features an asymmetrical plan, a low-pitched hip roof, wide bracketed eaves, and long, narrow windows. The full-width front porch has square paneled columns with foliate designs in the capitals and brackets. A single-story wing is attached to the rear of the house. A two-story, five sided wing was added to the west side of the house about ten years after the main part of the house was built. The house was built for George Cooper, a taylor, and it remained in his family until 1921. It was listed on the National Register of Historic Places in 1997.

The Henry Ambler House is a historic house located at 405 Broadway in Mount Pleasant, Iowa.

The Dr. J.O. and Catherine Ball House is a historic building located in Mount Pleasant, Iowa, United States. In 1892 this was one of three houses designed by George F. Barber's mail-order architectural firm that was being built in town, and it was the most elaborate of the three. The house is an enlargement of Barber's more expensive plans for design no. 33 from his 1891 book. The 2½-story frame Queen Anne features an irregular plan, a brick-faced limestone foundation, and an octagonal tower with an ogee shaped roof. The circular window on the second story projection is framed with three balconies, one above and one on either side. The wrap-around porch has a projecting gable roof supported by turned columns. A two-story bay window is located on the east elevation. It was also the first house in Mount Pleasant that was totally reliant on electricity for lighting. It was built for Dr. J.O. Ball, a dentist, who was active in civic improvements in Mount Pleasant. The house was listed on the National Register of Historic Places in 1986.

Old Main is an historic building located on the Iowa Wesleyan University campus in Mount Pleasant, Iowa, United States. Built in 1854, when James Harlan was the college's president, it is the second building constructed on the campus after Pioneer Hall. It is believed that Old Main was the first genuine collegiate building built in Iowa. The bricks for the building were manufactured locally by Benjamin Franklin Pearson of Keosauqua, Iowa, who also was responsible for some of the building's construction. The three-story building has modified classical features. It was designed to have classrooms on the first two floors and the library, natural history museum and chapel on the third floor. The building is capped with a hip roof with bracketed eaves, and a wooden cupola with a low dome painted gold. The International P.E.O. Sisterhood was founded in the building. It was listed on the National Register of Historic Places in 1973.

The Masters Building is a historic building located in Mount Pleasant, Iowa, United States. Completed in 1937, this two story, brick structure is an adaptation of the commercial Art Deco and Art Moderne styles. The decorative elements are found in the brick patterning and cast concrete panels on the facade. There are three other buildings on this same block that were built about the same time and use the same decorative techniques, with the Masters Building being the best example. This area was an expansion of the central business district after the construction of city hall across the street in 1936. A plumbing business, for which this building was constructed, was located on the first floor. There are three apartments on the second floor. The building was listed on the National Register of Historic Places in 1991.

Mount Pleasant City Hall is the official seat of government of the city of Mount Pleasant, Iowa, United States. This 1½-story stone structure was designed by Burlington, Iowa architect William Weibley, and constructed by local builder K.A. Bergdahl. It is an eclectic combination of Colonial Revival styles. For the most part it reflects Georgian Revival aesthetics with its symmetrical facade and the pilasters that flank the main entrance. The stepped ends of the gable roof and the projecting gable above the main entrance reflect the Dutch Revival influence. The random ashlar stone used in its construction was salvaged from the Seeley Memorial YMCA-high school that was destroyed in a 1932 fire. The city hall's construction in 1936 was a Works Progress Administration project. The east wing, which has been altered from its original appearance, originally housed the city's police and fire departments before they moved to their own buildings. City hall was listed on the National Register of Historic Places in 1991.

First National Bank is a historic building located in Mount Pleasant, Iowa, United States. The bank was first located on this corner in the 1860s. Its first building was a small, brick Italianate structure. This building replaced it in 1923. It is a two-story stone structure designed by Chicago architect Paul V. Hyland in the Neoclassical style. It is unique in Mount Pleasant in that it is the only stone building facing the square, and it reflects more of a public building instead of a commercial building. It is similar in style to the Henry County Courthouse, which is diagonally across the square. The exterior of the primary and secondary facades is composed of ashlar limestone and features paired pilasters on the corners of the primary facade, and a single column in the Corinthian order that flank the main entrance. It is capped with a simple classical cornice and parapet roof. The alley side of the building is composed of red brick. The building was listed on the National Register of Historic Places in 1991.

The Harlan House Hotel is a historic building located in Mount Pleasant, Iowa, United States. It is associated with James Harlan, the first Republican to represent Iowa in the United States Senate (1855-1865, 1867–1872). He was also Secretary of the Interior (1865-1867). His daughter Mary was the wife of Robert Todd Lincoln, President Abraham Lincoln's only surviving son. Harlan built the oldest part of this building as his house in 1857. After his career as a Senator, he could no longer afford the house and bought another house in Mount Pleasant. Harlan built the first addition onto his old house and converted it into a hotel so he could support himself. He added onto the hotel two more times, c. 1880 and 1892. The first two additions are on the alley side of the building, and the third addition faces Jefferson Street. The middle section of the building with the bracketed cornice and mansard roof is the original house. Harlan moved into the hotel in the early 1890s and died here in 1899. A few minor alterations were made to the building in the 20th century. It was listed on the National Register of Historic Places in 1987.

Iowa Wesleyan University is a private college in Mount Pleasant, Iowa. It is Iowa's first co-educational institution of higher learning and the oldest of its type west of the Mississippi River. The institution is affiliated with the United Methodist Church.it was founded as the Mount Pleasant Literary Institute in 1842, and was known as Mount Pleasant Collegiate Institute from 1843 to 1855, Iowa Wesleyan University from 1855 to 1912, and Iowa Wesleyan College from 1912 to 2015. The name reverted to Iowa Wesleyan University in 2015. Two campus buildings Old Main and the Harlan-Lincoln House are listed on the National Register of Historic Places. The latter, the former summer home of Robert Todd Lincoln, is now a museum featuring various artifacts from the Harlan and Lincoln families.

The Brazelton House is a historic house located at 401 North Main Street in Mount Pleasant, Iowa.