St. Marys County, Maryland
As of the census of 2000, there were 86211 people, 30642 households, and 22306 families living in the county. The population density was 1762.5 people per square mile (680.51/kmē), it would be the 14th most densely populated county in the U.S. state of Maryland. There were 34081 housing units at an average density of 675.3 per square mile (260.73/kmē). The average household size was 2.72 people, and the average family size was 3.17 people. In the county the population was spread out, with 27.9% under the age of 18, 8.9% from 18 to 24, 32.6% from 25 to 44, 21.5% from 45 to 64, and 9.1% who were 65 or older. For every 100 males there were 98.2 females. For every 100 males age 18 and over, there were 99.2 females. The July 2008 population estimate is 101578, The racial or ethnic makeup of the county was 81903 White, 15088 Black or African American, 350 American Indian, 2252 Asian, 73 Native Hawaiian, and 1912 from two or more races.
The median income for a household in the county was $54706, making its Maryland's 11th highest county by median household income. The median income for a family in the county was $61397, it is Maryland's 11th wealthiest county by median family income. The per capita income for the county was $22662, it is Maryland's 13th wealthiest county by per capita income.
In 2000, 25031 pupils and students, of which 12575 are male and 12456 are female, 2.87% of the total population, are in the education system. Of which, total enrollment of student are in, 1520 nursery or pri school, 1288 kindergarten, 11340 elementary school, 5335 high school and 5548 College graduate school.
| Rank | City | County | Total Area mi2 | Land Area mi2 | Water Area mi2 | Population | Density mi2 | Per capita Income | House hold Income |
|---|
| Year | Population |
|---|---|
| April 2000 census | 86211 |
| April 2000 Estimate | 86232 |
| July 2000 Estimate | 86520 |
| July 2001 Estimate | 87451 |
| July 2002 Estimate | 89860 |
| July 2003 Estimate | 92606 |
| July 2004 Estimate | 94884 |
| July 2005 Estimate | 96885 |
| July 2006 Estimate | 98510 |
| July 2007 Estimate | 100262 |
| July 2008 Estimate | 101578 |
| School | Male | Female | Total |
|---|---|---|---|
| Nursery school | 717 | 803 | 1520 |
| Kindergarten | 711 | 577 | 1288 |
| Elementary school | 5877 | 5463 | 11340 |
| High school | 2773 | 2562 | 5335 |
| College or graduate school | 2497 | 3051 | 5548 |
| Place | Median household income | Median family income | Per capita income |
|---|---|---|---|
| St. Marys County, Maryland | $54706 | $61397 | $22662 |
| Maryland, United States | $52868 | $61876 | $25614 |
| United States | $41994 | $50046 | $21587 |