Lockridge Township, Jefferson County, Iowa

New Sweden Chapel is a historic Lutheran Church building located east of Fairfield, Iowa, United States in rural Jefferson County. The Swedish immigrant community that settled here was organized in 1845 under the leadership of Peter Cassel, a native of Kisa, Östergötland, Sweden. This was the first Swedish settlement in Iowa, as well as the first west of the Mississippi River. They established a Lutheran congregation in 1848, and built a log church in 1851. This church replaced it in 1860. Local builder Henri Jagle was responsible for building the 50-by-30-foot (15.2 by 9.1 m) frame structure. It is four bays in length and features a 16-foot (4.9 m) tower with a spire over the main entrance. The interior features a painting by Olaf Grafström, who was an art instructor at Augustana College in Rock Island, Illinois. In 1948 the Augustana Evangelical Lutheran Church named the New Sweden Chapel as a National Synodial Shrine in recognition of its being the oldest congregation in the synod. Prince Bertil of Sweden and the Archbishop of Uppsala participated in a ceremony that drew 3,000 people. The chapel no longer houses a regular congregation, but is used for special occasions. A cemetery is located on the church grounds. The chapel was listed on the National Register of Historic Places in 1977.

Salina is an unincorporated populated place in Jefferson County, Iowa. Prominent early-twentieth-century Nebraska political figure George C. Junkin was born in Salina in 1858.

Lockridge is a city in Jefferson County, Iowa, United States. The population was 244 at the time of the 2020 census. Lockridge was one of the communities considered for the county seat in 1839, but lost out to Fairfield.

Beckwith is an unincorporated community in Jefferson County, in the U.S. state of Iowa.

Round Prairie Township is a township in Jefferson County, Iowa, United States. A 101-acre Round Prairie Park in the township has been developed by the Jefferson County Conservation Board. It has a campground, fishing ponds, and a mix of prairie and timber landscapes. The 275-acre Cedar Creek Timber & Wetland near the township offers hiking, bird watching, observing nature, hunting and fishing.

Buchanan Township is a township in Jefferson County, Iowa, United States.

Rome is a village in Henry County, Iowa, United States. The population was 114 at the time of the 2020 census.

Trenton Township is a township in Henry County, Iowa, USA.

Cedar Township is a township in Jefferson County, Iowa, United States.

Trenton is an unincorporated community and census-designated place (CDP) in Henry County, Iowa, United States. It is in the northwest part of the county, 10 miles (16 km) northwest of Mount Pleasant, the county seat. Trenton was first listed as a CDP prior to the 2020 census.

Tippecanoe Township is a township in Henry County, Iowa, USA.

Jefferson County is a county located in the U.S. state of Iowa. As of the 2020 United States Census, the population was 15,663. The county seat is Fairfield. The county was formed in January 1839, and was named for U.S. President Thomas Jefferson.Jefferson County comprises the Fairfield, IA Micropolitan Statistical Area.