Alhambra Apartments (Sioux City, Iowa)

The Sioux City Masonic Temple in Sioux City, Iowa was built during 1921–1922. It was listed on the National Register of Historic Places in 2004. It is a two and a half or three story building that cost nearly $300,000 to build, not including nearly $200,000 of custom furnishings. In 2004 it was deemed significant as "an excellent, unaltered example of the Spanish Colonial Revival architectural design"; it was one of only two downtown commercial buildings in that style, which was popular during 1915 to 1940. The other is the NRHP-listed Sioux City Free Public Library, two blocks south. It was designed by Sioux City architects Beuttler and Arnold.: 8 

The Sioux City metropolitan statistical area, as defined by the United States Census Bureau, is an area consisting of four counties in three states – Iowa, Nebraska, and South Dakota, anchored by the city of Sioux City, Iowa. As of the 2020 census, the MSA had a population of 145,940. Plymouth County, Iowa, was removed from the definition of the MSA prior to the 2020 census.

The Sioux City Free Public Library is a historic building located in Sioux City, Iowa, United States. The library was located in a section of the Municipal Building, no longer extant, between 1892 and 1913. It had outgrown the space when the Library Board contacted Andrew Carnegie in 1910 about providing the funding for a new library building. Their request was initially turned down. They chose to work with New York City architect Edward L. Tilton, an architect preferred by Carnegie, in place of local architect William L. Steele who was working with the board previously. Local resident George Murphy donated the property for the new building. Meanwhile, Tilton designed the two-story brick Renaissance Revival building. On April 8, 1911, Carnegie approved the project and donated $75,000 for the building's construction. The new building was dedicated on March 6, 1913, and it is considered "an excellent early twentieth century example of the architectural development of library planning and design." It was Tilton's only building in Iowa. Plans were made to enlarge the building in 1938, but the bond issue failed. The library remained in its cramped quarters until 1989 when it moved into a former bank building downtown. Ownership of the Carnegie building was transferred to a group of investors in 1996 who transformed it into apartments. It was listed on the National Register of Historic Places the following year.

Holy Trinity Greek Orthodox Church is located in Sioux City, Iowa, United States. Designed by architect William L. Steele, the church building has been listed on the National Register of Historic Places since 1998.

The Lewis System Armored Car and Detective Service Building, also known as the Bell Tire and Rubber Company (Service Company) and Sioux City Tent and Awning, is a historic building located in Sioux City, Iowa, United States. F.A. Martin and Richard Nash, who owned the property, had this two-story brick commercial building constructed in 1929. KB Construction (Federation Construction Company), who built the building, occupied the second floor. Bell Tire and Rubber Company was the first business located on the first floor from 1930 to 1933. A few other businesses occupied the space until Sioux City Tent and Awning was located here from 1937 to 1941. The following year Lewis System moved in and remained until 1969. The second floor was converted into apartments about 1950. The Lewis System, Inc. was established in 1919 and incorporated in 1922 by Harry Lewis, who grew up in St. Louis and was in the United States Army before he became a railroad detective and moved to Sioux City. By 1930 the company grew to 111 employees and had offices in Sioux Falls, South Dakota, Omaha, Nebraska, Chicago, and Kansas City, Missouri. A large portion of their business was in retail crime, but they also provided security guards for business firms, security checks, and security alarms. After Harry's brother Paul joined him in the late 1930s they added the armored car division. That division opened offices in Des Moines, Waterloo, Fort Dodge, and Cedar Rapids in Iowa and in Sioux Falls. Harry Lewis served as the company president until his death in 1951, and Paul took over from him and continued until his death in 1957. The company was sold to Samartick and Company of Omaha and they operated the business here until 1969. Wells Fargo Armored Car Service took over the building in 1970 and remained here until 1996. The building was listed on the National Register of Historic Places in 2016.

This is a list of Greek Orthodox churches in the United States that are notable, either as buildings or as church congregations. Some are buildings that are listed on the National Register of Historic Places or state- or local historic register for their architecture or other reasons. Some are former church buildings; others are current churches within the Greek Orthodox Archdiocese of America. These are Orthodox Christian cathedrals or churches in North America that are notable, whether for their architectural design and or historical characteristics or for other reasons. These are: (by state then city) Also by state then city: Holy Trinity Greek Orthodox Church (San Francisco) St. John's Greek Orthodox Church, Pueblo, Colorado, NRHP-listed Saint Sophia Cathedral (Washington, D.C.) St. Nicholas Greek Orthodox Cathedral (Tarpon Springs, Florida) Annunciation Greek Orthodox Cathedral (Atlanta), Georgia Greek Orthodox Church of Saint George, Des Moines, Iowa, NRHP-listed Annunciation Greek Orthodox Cathedral of New England, Boston, MA, NRHP-listed Holy Trinity Greek Orthodox Church (Lowell, Massachusetts), NRHP-listed Assumption Greek Orthodox Church, University City, MO, NRHP-listed St. George's Greek Orthodox Church, Southbridge, MA, NRHP-listed St. Euphrosynia Belarusian Orthodox Church, New Jersey Archdiocesan Cathedral of the Holy Trinity, New York City St. Spyridon Greek Orthodox Church, New York All Saints Antiochian Orthodox Church, Raleigh, North Carolina Holy Trinity Greek Orthodox Cathedral (Charlotte, North Carolina) Holy Trinity Ukrainian Greek Orthodox Church, Wilton, ND, NRHP-listed Holy Trinity Greek Orthodox Church, Steubenville, Ohio, listed on the NRHP in Jefferson County, Ohio Holy Trinity Greek Orthodox Church (Tulsa, Oklahoma) Greek Orthodox Church of the Holy Trinity, Charleston, SC, NRHP-listed Annunciation Greek Orthodox Cathedral (Houston), Texas Holy Trinity Greek Orthodox Cathedral (Phoenix, Arizona)

St. Thomas Orthodox Church in Sioux City, Iowa is a parish of the Great Plains Deanery of the Diocese of Wichita and Mid-America, part of the Antiochian Orthodox Christian Archdiocese of North America, a constituent archdiocese of the Greek Orthodox Patriarchate of Antioch and All the East. Founded in 1916 to serve the Syrian and Lebanese immigrant community that existed in Sioux City at that time,: 114  it is the oldest Orthodox parish in Sioux City and has become a pan-Orthodox community with members from across the Siouxland region.

The Motor Mart Building, also known as the Commerce Building, is a historic building located in Sioux City, Iowa, United States. It was built by Ralph A. Bennett, who was the owner of Bennett Auto Supply Company. The structure was designed in the style of the Chicago school by E.J. Henriques of the C.F. Lytle Company of Sioux City, who also built the structure. It was initially designed to be two stories tall, but the plans were changed and two more floors were added. It was designed to display, repair and provide parking for automobiles. It was also the first building in Sioux City to incorporate the flat slab system of framing of Claude A.P. Turner, and it was one of the first reinforced, poured concrete buildings in the city. The exterior of the concrete frame structure is clad with glazed brick over common brick infill. The building features terra cotta decorative elements. A.L. Galinsky bought the building in 1919 and converted it into an office building. Its name was changed to the Commerce Building at that time. The Roof Garden was added above the fourth floor from 1921 to 1923. It is a gabled structure covered with stucco. Large Palladian windows line the side walls. The structure housed a ballroom that hosted a variety of social events, and where many big bands played. Lawrence Welk played an early concert here. The building was listed on the National Register of Historic Places in 1993.

The Warrior Hotel is a historic hotel opened in 1930 and restored in 2020, located in downtown Sioux City, Iowa, United States.

The Sioux City Grain Exchange (SCGX) was a cash commodity market in Sioux City, Iowa that primarily traded corn, wheat, oat, and soybean. It was established in 1907 as the Sioux City Board of Trade, named the "fastest growing grain market in the world" in 1929, and among the largest exchanges in the world by the 1970s; transacting over 100 million bushels annually (valued at $1 billion as of 2018). It served the Corn Belt (primarily Iowa, Nebraska, South Dakota, and Minnesota) and primarily competed against the Chicago Mercantile Exchange, Minneapolis Grain Exchange and Kansas City Board of Trade. SCGX's rise and decline was driven by barge navigation of the Missouri River and mirrored the Sioux City Livestock Exchange (Sioux City Stockyards), the largest in the world during the 1970s. Both were co-founded by Vermont banker Fred L. Eaton.

Mary Elizabeth Day Nursery, also known as Mary Elizabeth Day Care Center, is a historic building located in Sioux City, Iowa, United States. This is the oldest child day care facility in the state of Iowa, and the state's second-oldest preschool. The Sioux City Day Nursery was established in 1914 by the Wall Street Mission, a local settlement house operated by the Methodist Episcopal Church. They moved here in 1926, which is the first building designed as a day nursery in Iowa. The two-story brick Renaissance Revival building was designed by local architect Jurgen A. Raven, and built by The Lytle Company, a Sioux City construction firm. Parents were responsible for paying for at least part of their children's care, but it was also subsidized by religious institutions, private associations, and individuals. During the Great Depression, both the federal and state governments began to fund and license child care. The Works Progress Administration was involved in the 1930s. A garage and playhouse designed by Sioux City architect Knute E. Westerlind was built in 1940, and it is part of the historic designation. The facility was renamed the Mary Elizabeth Day Care Center in 1990. The building was listed on the National Register of Historic Places in 1997.

Sioux City Community School District (SCCSD) is a public school district headquartered in the Educational Service Center in Sioux City, Iowa. The district is mostly in Woodbury County, with a portion in Plymouth County.