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Carroll County, Maryland

Carroll County is a county located in the U.S. State of Maryland.

As of 2000, the population is 150,897. It was named for Charles Carroll of Carrollton (1737-1832), signer of the American Declaration of Independence. Its county seat is Westminster.

This county is a part of the Washington-Baltimore Metropolitan Area.

A farm in Carroll County, Maryland

Table of contents
1 History
2 Law and government
3 Geography
4 Demographics
5 Cities and towns


Carroll County was created in 1837 from parts of Baltimore and Frederick Counties.

Law and government

Carroll County is still governed by county commissioners, the traditional form of county government in Maryland.

County Executive

The county commissioners exercise such executive powers as exist in the government of the county.


Carroll County includes eight municipalities: Unincorporated areas are also considered as towns by many people, but they lack local government. The United States Census Bureau recognizes one Census-Designated Place in Carroll County: Eldersburg. Other entities, such as the United States Postal Service, use a different selection of local place names. In all these cases, since the places are unincorporated, the boundaries are determined by the classifying authority.

According to the U.S. Census Bureau, the county has a total area of 1,172 km² (452 mi²). 1,163 km² (449 mi²) of it is land and 8 km² (3 mi²) of it is water. The total area is 0.72% water.


As of the census2 of 2000, there are 150,897 people, 52,503 households, and 41,109 families residing in the county. The population density is 130/km² (336/mi²). There are 54,260 housing units at an average density of 47/km² (121/mi²). The racial makeup of the county is 95.69% White, 2.28% Black or African American, 0.22% Native American, 0.75% Asian, 0.02% Pacific Islander, 0.31% from other races, and 0.73% from two or more races. 0.99% of the population are Hispanic or Latino of any race.

There are 52,503 households out of which 39.70% have children under the age of 18 living with them, 66.50% are married couples living together, 8.30% have a female householder with no husband present, and 21.70% are non-families. 17.50% of all households are made up of individuals and 7.40% have someone living alone who is 65 years of age or older. The average household size is 2.81 and the average family size is 3.18.

In the county the population is spread out with 27.70% under the age of 18, 7.00% from 18 to 24, 30.60% from 25 to 44, 23.90% from 45 to 64, and 10.80% who are 65 years of age or older. The median age is 37 years. For every 100 females there are 97.40 males. For every 100 females age 18 and over, there are 94.00 males.

The median income for a household in the county is $60,021, and the median income for a family is $66,430. Males have a median income of $44,191 versus $30,599 for females. The per capita income for the county is $23,829. 3.80% of the population and 2.70% of families are below the poverty line. Out of the total people living in poverty, 4.00% are under the age of 18 and 4.90% are 65 or older.

Cities and towns