Williamsburg, Iowa

At the 2010 census there were 3,068 people, 1,309 households, and 835 families living in the city. The population density was 820.3 inhabitants per square mile (316.7/km²). There were 1,428 housing units at an average density of 381.8 per square mile (147.4/km²). The racial makeup of the city was 98.3% White, 0.2% African American, 0.3% Asian, 0.3% from other races, and 0.8% from two or more races. Hispanic or Latino of any race were 1.5%.[2]

Of the 1,309 households 32.2% had children under the age of 18 living with them, 53.2% were married couples living together, 7.3% had a female householder with no husband present, 3.4% had a male householder with no wife present, and 36.2% were non-families. 32.8% of households were one person and 16.2% were one person aged 65 or older. The average household size was 2.31 and the average family size was 2.93.

The median age was 39.1 years. 25.6% of residents were under the age of 18; 6.2% were between the ages of 18 and 24; 25.6% were from 25 to 44; 24.1% were from 45 to 64; and 18.4% were 65 or older. The gender makeup of the city was 47.0% male and 53.0% female.

At the 2000 census there were 2,622 people, 1,072 households, and 687 families living in the city. The population density was 833.4 people per square mile (321.4/km²). There were 1,112 housing units at an average density of 353.4 per square mile (136.3/km²). The racial makeup of the city was 97.98% White, 0.11% African American, 0.04% Native American, 0.23% Asian, 0.11% Pacific Islander, 0.99% from other races, and 0.53% from two or more races. Hispanic or Latino of any race were 1.72%.[7]

Of the 1,072 households 35.4% had children under the age of 18 living with them, 53.1% were married couples living together, 8.7% had a female householder with no husband present, and 35.9% were non-families. 31.4% of households were one person and 15.7% were one person aged 65 or older. The average household size was 2.41 and the average family size was 3.10.

The age distribution was 28.9% under the age of 18, 6.7% from 18 to 24, 28.9% from 25 to 44, 19.0% from 45 to 64, and 16.5% 65 or older. The median age was 37 years. For every 100 females, there were 87.8 males. For every 100 females age 18 and over, there were 84.3 males.

The median household income was $36,528 and the median family income was $46,779. Males had a median income of $31,104 versus $24,091 for females. The per capita income for the city was $19,712. About 3.6% of families and 4.3% of the population were below the poverty line, including 3.4% of those under age 18 and 2.7% of those age 65 or over.