Last official estimated population of Portsmouth city (Rockingham County**, New Hampshire state) was 21,598 (year 2014)[1]. This was 0.007% of total US population and 1.62% of total New Hampshire state population. Area of Portsmouth city is 16.8 mi² (=43.6 km²)[6], in this year population density was 1,281.86 p/mi². If population growth rate would be same as in period 2010-2014 (+0.97%/yr), Portsmouth city population in 2024 would be 23,790*.
Historical population of Portsmouth city for period 1790-2014:
Estimated population for 2014[1]. Click on flag to hide it.
Population • Legends • Position
[1790-1800] +1.24 %/yr
[1800-1810] +2.65 %/yr
[1810-1820] +0.55 %/yr
[1820-1830] +0.92 %/yr
[1830-1840] -0.17 %/yr
[1840-1850] +2.13 %/yr
[1850-1860] -0.42 %/yr
[1860-1870] -0.13 %/yr
[1870-1880] +0.51 %/yr
[1880-1890] +0.14 %/yr
[1890-1900] +0.8 %/yr
[1900-1910] +0.58 %/yr
[1910-1920] +1.87 %/yr
[1920-1930] +0.66 %/yr
[1930-1940] +0.22 %/yr
[1940-1950] +2.42 %/yr
[1950-1960] +3.63 %/yr
[1960-1970] -0.45 %/yr
[1970-1980] +0.21 %/yr
[1980-1990] -0.04 %/yr
[1990-2000] -2.27 %/yr
[2000-2005] +0.31 %/yr
[2005-2010] -0.32 %/yr
[2010-2014] +0.97 %/yr
• Lawrence city population
31.5 mi, 
217°
• Haverhill city
24.7 mi, 219°
• Methuen Town city
29.8 mi, 222°
• Dover city
10.1 mi, 
329°
• Rochester city
19.2 mi, 328°
• Gloucester city
30.2 mi, 
170°
• Sanford city
25.1 mi, 
2°
• Newburyport city
18 mi, 
198°
• Amesbury Town city
17 mi, 
211°
• Somersworth city
14.4 mi, 
337°
*Calculated by population.us from last known population growth rate, not official data.
**Some cities are placed on more than one county. Only 1 county is shown.
[1] Cities and Towns (Incorporated Places and Minor Civil Divisions) 2014, archived from the original, retrieved 02/23/2016
[2] City and Town Intercensal Estimates (2000-2010), archived from the original, retrieved 02/23/2016
[3] Places: 1990 and 1999 Populations, With Numeric and Percent Population Change, archived from the original, retrieved 02/23/2016
[4] Population of the 100 Largest Urban Places: 1980,
[5] Population of the 100 Largest Urban Places in history,
[6] Area, latitude longitude data, retrieved 02/23/2016
[7] Through the Decades, Overview 1790-2010, PDF, large files! >100 Mb
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