Last official estimated population of Williamsport city (Lycoming County**, Pennsylvania state) was 29,197 (year 2014)[1]. This was 0.009% of total US population and 0.23% of total Pennsylvania state population. Area of Williamsport city is 9.4 mi² (=24.4 km²)[6], in this year population density was 3,097.17 p/mi². If population growth rate would be same as in period 2010-2014 (-0.16%/yr), Williamsport city population in 2024 would be 28,742*.
Historical population of Williamsport city for period 1810-2014:
Estimated population for 2014[1]. Click on flag to hide it.
Population • Legends • Position
[1810-1820] +6.14 %/yr
[1820-1840] +3.95 %/yr
[1840-1850] +1.79 %/yr
[1850-1860] +13.37 %/yr
[1860-1870] +10.96 %/yr
[1870-1880] +1.68 %/yr
[1880-1890] +3.66 %/yr
[1890-1900] +0.58 %/yr
[1900-1910] +1.03 %/yr
[1910-1920] +1.28 %/yr
[1920-1930] +2.36 %/yr
[1930-1940] -0.3 %/yr
[1940-1950] +0.15 %/yr
[1950-1960] -0.71 %/yr
[1960-1970] -1.01 %/yr
[1970-1980] -1.26 %/yr
[1980-1990] -0.34 %/yr
[1990-2000] -0.49 %/yr
[2000-2005] -0.54 %/yr
[2005-2010] -0.35 %/yr
[2010-2014] -0.16 %/yr
• South Williamsport borough population
2 mi, 
111°
• Montoursville borough
6.2 mi, 
85°
• Jersey Shore borough
12.3 mi, 
257°
• Muncy borough
13.3 mi, 
101°
• Watsontown borough
13.9 mi, 
140°
• Hughesville borough
16.1 mi, 90°
• Montgomery borough
9.8 mi, 
117°
• Avis borough
15.1 mi, 255°
• Duboistown borough
1.2 mi, 
186°
• Salladasburg borough
10.6 mi, 
285°
*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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