Windsor is a city in Henry and Pettis counties, Missouri, United States. The population was 2,893 at the 2010 census.
The city is located in northeast Henry County and extends to the northeast into the southwest corner of Pettis County. It is at the intersection of Missouri routes 52 and 2. Clinton is 16 miles to the southwest, Warrensburg is about 18 miles to the northwest and Sedalia is approximately 18 miles to the northeast. The east fork of Tebo Creek flows past the west side of the city.
According to the United States Census Bureau, the city has a total area of 2.45 square miles (6.35 km), of which 2.42 square miles (6.27 km) is land and 0.03 square miles (0.08 km) is water.
As of the census of 2010, there were 2,901 people, 1,193 households, and 781 families residing in the city. The population density was 1,198.8 inhabitants per square mile (462.9/km). There were 1,381 housing units at an average density of 570.7 per square mile (220.3/km). The racial makeup of the city was 96.8% White, 0.1% African American, 1.1% Native American, 0.2% Asian, 0.2% Pacific Islander, 0.1% from other races, and 1.4% from two or more races. Hispanic or Latino of any race were 2.0% of the population.
There were 1,193 households of which 31.3% had children under the age of 18 living with them, 48.4% were married couples living together, 12.4% had a female householder with no husband present, 4.7% had a male householder with no wife present, and 34.5% were non-families. 29.6% of all households were made up of individuals and 13.1% had someone living alone who was 65 years of age or older. The average household size was 2.39 and the average family size was 2.94.
The median age in the city was 38.2 years. 24.8% of residents were under the age of 18; 8.2% were between the ages of 18 and 24; 24.9% were from 25 to 44; 23.4% were from 45 to 64; and 18.8% were 65 years of age or older. The gender makeup of the city was 47.5% male and 52.5% female.
As of the census of 2000, there were 3,087 people, 1,280 households, and 848 families residing in the city. The population density was 1,310.5 people per square mile (505.0/km²). There were 1,418 housing units at an average density of 602.0 per square mile (232.0/km²). The ethnical makeup of the city was 97.02% White, 0.52% African American, 0.65% Native American, 0.26% Asian, 0.36% from other races, and 1.20% from two or more ethnicities. Hispanic or Latino of any ethnicity were 0.52% of the population.
There were 1,280 households out of which 30.7% had children under the age of 18 living with them, 52.0% were married couples living together, 10.5% had a female householder with no husband present, and 33.7% were non-families. 29.5% of all households were made up of individuals and 16.2% had someone living alone who was 65 years of age or older. The average household size was 2.38 and the average family size was 2.91.
In the city, the population was spread out with 25.3% under the age of 18, 8.4% from 18 to 24, 26.8% from 25 to 44, 20.1% from 45 to 64, and 19.5% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 88.5 males. For every 100 females age 18 and over, there were 84.4 males.
The median income for a household in the city was $29,922, and the median income for a family was $32,477. Males had a median income of $27,986 versus $19,605 for females. The per capita income for the city was $16,052. About 16.5% of families and 16.5% of the population were below the poverty line, including 18.0% of those under age 18 and 19.7% of those age 65 or over.