2010 census

As of the census of 2010, there were 2,938 people, 926 households and 807 families living in the city. The population density was 539.1 per square mile (208.1/km²). There were 950 housing units at an average density of 174.3 per square mile (67.3/km²). The racial makeup was 96.0% White, 0.6% African American, 0.2% Native American, 1.5% Asian, 0.7% from other races, and 1.0% from two or more races. Hispanic or Latino of any race were 1.7% of the population.

There were 926 households, of which 56.9% had children under the age of 18 living with them, 77.4% were married couples living together, 4.9% had a female householder with no husband present, 4.9% had a male householder with no wife present, and 12.9% were non-families. 9.0% of all households were made up of individuals, and 1.5% had someone living alone who was 65 years of age or older. The average household size was 3.17 and the average family size was 3.36.

The median age was 32.5 years. 34.8% of residents were under the age of 18; 4.8% were between the ages of 18 and 24; 34.3% were from 25 to 44; 22.7% were from 45 to 64; and 3.5% were 65 years of age or older. The gender makeup was 51.4% male and 48.6% female.

2000 census

As of the census of 2000, there were 1,355 people, 440 households and 370 families living in the city. The population density was 277.0 inhabitants per square mile (107.0/km²). There were 456 housing units at an average density of 93.2 per square mile (36.0/km²). The racial makeup was 98.75% White, 0.07% Native American, 0.37% Asian, and 0.81% from two or more races. Hispanic or Latino of any race were 0.59% of the population.

There were 440 households, of which 48.0% had children under the age of 18 living with them, 76.4% were married couples living together, 3.9% had a female householder with no husband present, and 15.7% were non-families. 12.7% of all households were made up of individuals, and 4.3% had someone living alone who was 65 years of age or older. The average household size was 3.08 and the average family size was 3.38.

33.4% of the population were under the age of 18, 7.3% from 18 to 24, 36.0% from 25 to 44, 18.7% from 45 to 64, and 4.6% who were 65 years of age or older. The median age was 34 years. For every 100 females, there were 100.7 males. For every 100 females age 18 and over, there were 104.8 males.

The median household income was $73,667 and the median family income was $79,809. Males had a median income of $47,462 and females $32,452. The per capita income was $27,826. About 0.8% of families and 0.9% of the population were below the poverty line, including 0.9% of those under age 18 and 2.8% of those age 65 or over.

Miss Hanover Royalty Program

The Hanover Harvest Festival Royalty Program was begun in 2009 by Jackie Heinz who currently runs the program. To participate in the contest, requirements include being a rising senior in high school up to 22 years old, and having attended school in Hanover or lived in the area, or attended a local private school. The contest consists of contestants being judged on various criteria including accomplishments, community activities, club/office membership and future goals pertaining to education and career. They are also judged on poise, dress, answers to interview questions and speech. Each year, two girls are crowned Miss Hanover and Hanover Princess. Miss Hanover has the opportunity to be invited by the Aquatennial Royal Court in Minneapolis to participate in Aquatennial Queen of the Lakes Scholarship Program.^[15] If the Queen (Miss Hanover) decides not to participate in Aquatennial, then the opportunity passes to the Princess. Past royalty are:^[16]

Miss Hanover

• Dana Bjorge 2009–2010
• Kenzie Haight 2010–2011
• Kaelie Lund 2011–2012
• Amanda Jendro 2012–2013
• Krystle Brown 2013-2014
• Mallory Gutknecht 2014-2015
• Belle Wanke 2015-2016
• Abigail Staggert 2016-2017
• Hannah Hochstedler 2017-2018
• Kaitlin Galdonik 2018-2019
• Kiley Irwin 2019-2020-2021
• Daphne Grambart 2021-2022
• Grace Panek 2022-2023