Portsmouth City, New Hampshire
As of the census of 2000, there were 20784 people in the city, organized into 9875 households, and 4862 families living in the city. The population density was 1331.3 people per square mile (514.02/kmē), making it the 15th most densely populated city in New Hampshire. There were 10186 housing units at an average density of 652.5 per square mile (251.93/kmē). The average household size was 2.04 and the average family size was 2.75. The population's age distribution was 17.2% under the age of 18, 7.2% from 18 to 24, 36.2% from 25 to 44, 23.2% from 45 to 64, and 16.3% who were 65 or older. For every 100 females there were 94.5 males. For every 100 females age 18 and over, there were 92 males. The median age is 38.5 years, the median age of male residents at 36.6 and the median age of female residents at 40.4. The racial or ethnic makeup of the city was 19443 White, 442 Black or African American, 44 American Indian, 508 Asian, 5 Native Hawaiian, 283 from two or more races and 59 Ohter races.
The median income for a household in the city was $45195, it is the 15th wealthiest city in terms of median household income. The median income for a family in the city was $59630, it is the seventh highest city by median family income in the U.S. state of New Hampshire. The per capita income for the city was $27540, it is the second highest city by per capita income in the U.S. state of New Hampshire. The median income was $26972, Males had a median income of $31954 versus $21693 for females.
In 2000, 3963 pupils and students, of which 2033 are male and 1930 are female, 19.07% of the total population, are in the education system. Of which, total enrollment of student are in, 316 nursery or pri school, 209 kindergarten, 1553 elementary school, 882 high school and 1003 College graduate school.
| Year | Population |
|---|---|
| April 2000 census | 20784 |
| April 2000 Estimate | 20784 |
| July 2000 Estimate | 20822 |
| July 2001 Estimate | 20901 |
| July 2002 Estimate | 20928 |
| July 2003 Estimate | 20833 |
| July 2004 Estimate | 20664 |
| July 2005 Estimate | 20543 |
| July 2006 Estimate | 20557 |
| July 2007 Estimate | 20482 |
| July 2008 Estimate | 20443 |
| School | Male | Female | Total |
|---|---|---|---|
| Nursery school | 158 | 158 | 316 |
| Kindergarten | 96 | 113 | 209 |
| Elementary school | 741 | 812 | 1553 |
| High school | 511 | 371 | 882 |
| College or graduate school | 527 | 476 | 1003 |
| Place | Median household income | Median family income | Per capita income |
|---|---|---|---|
| Portsmouth city, New Hampshire | $45195 | $59630 | $27540 |
| Rockingham County, New Hampshire | $58150 | $66345 | $26656 |
| New Hampshire, United States | $49467 | $57575 | $23844 |
| United States | $41994 | $50046 | $21587 |