1 It is illegal for anyone under the age of 18 to consume alcohol. 2  Parents, guardians, and others taking care of people under 18 shall prohibit underage drinking, or risk administrative fines of 10000 to 50000 new Taiwan dollars when the situations are serious. 3  One shall not supply alcohol to anyone under the age of 18.
Most / Least Educated Cities in NH. The average temperature of Portsmouth is 47.14Â°F, which is higher than the New Hampshire average temperature of 44.49Â°F and is much lower than the national average temperature of 54.45Â°F.
The largest decennial percent change was a 2 percent increase between 1970 and 1980; population declined by 21 percent between 1990 and 2000. The 2014 Census estimate for Portsmouth was 21,366 residents, which ranked 13th among New Hampshire's incorporated cities and towns. Population Density and Land Area, 2014 (US Census Bureau): 1,362.6 persons per square mile of land area, the third highest among the cities and towns. Portsmouth contains 15.7 square miles of land area and 1.1 square miles of inland water area.