Calvert County is located in the U.S. state of Maryland. As of the 2010 census, the population was 88,737. Its county seat is Prince Frederick. The county’s name is derived from the family name of the Barons of Baltimore, the proprietors of the English Colony of Maryland.
According to the U.S. Census Bureau, the county has a total area of 345 square miles (890 km), of which 213 square miles (550 km) is land and 132 square miles (340 km) (38%) is water. It is the smallest county in Maryland by land area and third-smallest by total area.
As of the census of 2000, there were 74,563 people, 25,447 households, and 20,154 families residing in the county. The population density was 346 people per square mile (134/km²). There were 27,576 housing units at an average density of 128 per square mile (49/km²). The racial makeup of the county was 83.93% White, 13.11% Black or African American, 0.30% Native American, 0.88% Asian, 0.03% Pacific Islander, 0.49% from other races, and 1.27% from two or more races. 1.52% of the population were Hispanic or Latino of any race. 15.5% were of Irish, 15.0% German, 12.0% English, 11.5% United States or American and 7.1% Italian ancestry.
There were 25,447 households out of which 41.70% had children under the age of 18 living with them, 64.80% were married couples living together, 9.90% had a female householder with no husband present, and 20.80% were non-families. 16.30% of all households were made up of individuals and 5.70% had someone living alone who was 65 years of age or older. The average household size was 2.91 and the average family size was 3.26.
In the county, the population was spread out with 29.60% under the age of 18, 6.40% from 18 to 24, 31.70% from 25 to 44, 23.40% from 45 to 64, and 8.90% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 97.30 males. For every 100 females age 18 and over, there were 94.00 males.
The median income for a household in the county was $65,945, and the median income for a family was $71,545 (these figures had risen to $88,989 and $100,229 respectively as of a 2007 estimate). Males had a median income of $48,664 versus $32,265 for females. The per capita income for the county was $25,410. About 3.10% of families and 4.40% of the population were below the poverty line, including 5.10% of those under age 18 and 5.70% of those age 65 or over.
As of the 2010 United States Census, there were 88,737 people, 30,873 households, and 23,732 families residing in the county. The population density was 416.3 inhabitants per square mile (160.7/km). There were 33,780 housing units at an average density of 158.5 per square mile (61.2/km). The racial makeup of the county was 81.4% white, 13.4% black or African American, 1.4% Asian, 0.4% American Indian, 0.7% from other races, and 2.7% from two or more races. Those of Hispanic or Latino origin made up 2.7% of the population. In terms of ancestry, 19.6% were German, 17.6% were Irish, 13.9% were English, 8.4% were Italian, and 7.4% were American.
Of the 30,873 households, 40.4% had children under the age of 18 living with them, 60.6% were married couples living together, 11.3% had a female householder with no husband present, 23.1% were non-families, and 18.1% of all households were made up of individuals. The average household size was 2.85 and the average family size was 3.23. The median age was 40.1 years.
The median income for a household in the county was $90,838 and the median income for a family was $102,638. Males had a median income of $66,909 versus $49,337 for females. The per capita income for the county was $36,323. About 2.8% of families and 4.4% of the population were below the poverty line, including 5.3% of those under age 18 and 5.3% of those age 65 or over.
According to the 2010 Census the racial and ethnic make-up of the Calvert County Population was 79.65% Non-Hispanic whites, 13.44% blacks, 0.37% Native Americans, 1.42% Asians, 0.05% Pacific Islanders, 0.12% Non-Hispanics reporting some other race, 2.40% Non-Hispanics reporting multiple races and 2.75% Hispanic.
Calvert County Maryland neighborhoods include: Castleton, Deerfield, Emmanuel Church Rd, Evans Rd & Plum Point Are, Hunting Creek Rd, Huntingfields Manor, Hunting Hills Estates, Huntingtown, Jacksonville, Lorins Pride, Marley Run, MF Bowen Road, Neeld Estate, Peach Blossom Farm, Queensberry, Twin Ponds, Walnut Creek, Wilson Rd