Lena-Winslow High School

Lena is a village in Stephenson County, Illinois. The population was 2,772 at the 2020 census.Lena was platted in 1853, and named after a place mentioned in a poem by Ossian.

The Lena Water Tower is a water tower located in the village of Lena, Illinois, United States. It was built in 1896 following two decades of problems with structure fires in the village. The current water tower is the result of a second attempt after the first structure proved to be unstable. The tower stands 122.5 feet (37.3 m) tall and is built of limestone and red brick. The current stainless steel water tank holds 50,000 gallons (190,000 liters) and replaced the original wooden tank in 1984. The site has two other structures, an old power plant building and a 100,000 US gallon (380,000 L) reservoir. The Lena Electric Plant Building was constructed in 1905 and the reservoir completed in 1907. The Lena Water Tower was listed on the U.S. National Register of Historic Places in 1997; the reservoir was included as a contributing property to the listing.

The Chris Jensen Round Barn was a historic round barn located at 11723 West Galena Road near Lena, Illinois. The barn was 60 feet (18 m) in diameter and featured a conical roof with a cupola. The barn's livestock stalls were arranged in parallel rows; this configuration was highly unusual among round barns, which typically featured wedge-shaped stalls arranged along the outer circle of the barn.The barn was listed on the National Register of Historic Places on February 23, 1984. It has since been demolished, though it is still on the Register.

WQLF (102.1 FM; "Q102") is a radio station broadcasting a classic rock format. Licensed to Lena, Illinois, the station serves the Freeport, Illinois area, and is owned by Big Radio.

Lake Le-Aqua-Na State Recreation Area is an Illinois state park on 715 acres (289 ha) in Stephenson County, Illinois, United States. The park surrounds and includes Lake Le-Aqua-Na.

Erin Township is located in Stephenson County, Illinois. As of the 2010 census, its population was 410 and it contained 177 housing units. The unincorporated community of Eleroy is located in the township.

WHRD is a Christian radio station licensed to Freeport, Illinois, broadcasting on 106.9 MHz FM. WHRD is an affiliate of Moody Radio, and is owned by Northwestern Illinois Radio Fellowship.

The Battle of Waddams Grove, also known as the Battle of Yellow Creek was part of the Black Hawk War. It took place in present-day Stephenson County, Illinois on June 18, 1832. After several incidents of Sauk Indian raids on settlers along the Apple River, Captain James W. Stephenson left Galena with a group of volunteer militia in pursuit of the Native party. The group clashed on June 18, 1832 near Yellow Creek and the ensuing battle descended into a bayonet and knife fight in which several Sauk and three militia men were killed. Stephenson was severely wounded by a musketball to the chest during the fighting. The dead were eventually interred in a memorial cemetery in Kellogg's Grove, Illinois where a stone monument was erected in memory of those killed during the war.

West Point Township is located in Stephenson County, Illinois. As of the 2010 census, its population was 3,369 and it contained 1,483 housing units. The village of Lena, the unincorporated community of Waddams Grove, and two former communities of Louisa and West Point were all located in this township.

Kent Township is located in Stephenson County, Illinois. As of the 2010 census, its population was 702 and it contained 270 housing units. The unincorporated community of Kent is located in the township.

Eleroy is an unincorporated community in Stephenson County, Illinois. The population was 85 at the 2000 census.

Waddams Township is located in Stephenson County, Illinois. As of the 2010 census, its population was 807 and it contained 360 housing units. The unincorporated communities of McConnell and Damascus are located in the township, and once New Pennsylvania was located here also.