Last official estimated population of Norristown borough (Montgomery County**, Pennsylvania state) was 34,484 (year 2014)[1]. This was 0.011% of total US population and 0.27% of total Pennsylvania state population. Area of Norristown borough is 3.6 mi² (=9.3 km²)[6], in this year population density was 9,557.65 p/mi². If population growth rate would be same as in period 2010-2014 (+0.12%/yr), Norristown borough population in 2025 would be 34,928*.
Historical population of Norristown borough for period 1820-2014:
Estimated population for 2014[1]. Click on flag to hide it.
Population • Legends • Position
[1820-1830] +2.79 %/yr
[1830-1840] +10.43 %/yr
[1840-1850] +7.45 %/yr
[1850-1860] +3.92 %/yr
[1860-1870] +1.97 %/yr
[1870-1880] +1.97 %/yr
[1880-1890] +4.24 %/yr
[1890-1900] +1.18 %/yr
[1900-1910] +2.27 %/yr
[1910-1920] +1.49 %/yr
[1920-1930] +1.04 %/yr
[1930-1940] +0.63 %/yr
[1940-1950] -0.01 %/yr
[1950-1960] +0.21 %/yr
[1960-1970] -0.2 %/yr
[1970-1980] -0.95 %/yr
[1980-1990] -1.28 %/yr
[1990-2000] +0.3 %/yr
[2000-2005] +1.05 %/yr
[2005-2010] +0.73 %/yr
[2010-2014] +0.12 %/yr
• Phoenixville borough population
9.7 mi, 
275°
• Lansdale borough
8.8 mi, 
20°
• Conshohocken borough
3.6 mi, 
148°
• Ambler borough
6.7 mi, 
69°
• Collegeville borough
7.7 mi, 
305°
• Bridgeport borough
1.3 mi, 
188°
• Narberth borough
8.9 mi, 152°
• Trappe borough
8.9 mi, 306°
• North Wales borough
7.1 mi, 
29°
• West Conshohocken borough
3.7 mi, 
162°
*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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