The urban center of town, where 7,534 people resided as of the 2020 census,[3] is defined as the Hudson census-designated place (CDP) and is located at the junctions of New Hampshire routes 102, 111 and 3A, directly across the Merrimack River from the city of Nashua.

The grounds host the annual "Old Home Days" fair every year as well as "Harvest Fest" and the "Bronco Belly Bustin' Chili Fiesta", an Alvirne High School Friends of Music fundraiser.

In fall of 1994, Alvirne High School fielded its first JV football team, with varsity play beginning in 1996.

Alvirne High is home to one of the largest agricultural-vocational programs in the area, the Wilbur H. Palmer Agricultural and Vocational School.

This school features several student-run businesses including a bank, restaurant, store, day care, dairy farm, and forestry program.

[1] The highest point in Hudson is Bush Hill, at 515 feet (157 m) above sea level, near the town's eastern border.

[7] The town of Hudson had two historic centers, though modern development and suburban sprawl have obscured the difference.

[9] The Town Common at the intersection of Derry, Ferry, and Library streets is a park that displays large toy soldiers and other decorations at Christmas time.

Benson's Wild Animal Farm, a zoo and amusement park, was closed in the late 1980s due to mounting financial losses.

The acreage of Benson's Wild Animal Farm was purchased by the town and is now a park for passive recreation.

Greeley Field, a popular park located in Hudson Center, contains a playground, Little League baseball diamond, and basketball courts, where pick-up games still occur frequently.

Hudson serves primarily as a bedroom community for the Greater Boston metropolitan area, of which it is a part.

In 2006, for example, there were an estimated 10,945 jobs in the public and private sector in Hudson, while the town's population was 24,729, with a civilian labor force of 14,818.

The town's three largest employers are Benchmark Electronics, BAE Systems, and the Hudson School District.

The road currently serves to connect Hudson to the Everett Turnpike in Nashua, using the Sagamore Bridge across the Merrimack River.

In the early 1900s hunters would travel by horse from as far as Derry to camp and stalk game in the renowned swamp.

Much work has been done and is ongoing to rehabilitate and maintain the park's trails, gardens, landscaping, and remaining buildings.

The Old Lady in the Shoe, the gorilla house, the elephant barn, the A-Frame roof and other structures including the train stop building have been repaired.