Last official estimated population of Bruin borough (Butler County**, Pennsylvania state) was 509 (year 2014)[1]. This was 0% of total US population and 0% of total Pennsylvania state population. Area of Bruin borough is 1.8 mi² (=4.7 km²)[6], in this year population density was 278.75 p/mi². If population growth rate would be same as in period 2010-2014 (-0.72%/yr), Bruin borough population in 2026 would be 467*.
Historical population of Bruin borough for period 1910-2014:
Estimated population for 2014[1]. Click on flag to hide it.
Population • Legends • Position
[1910-1920] +2.94 %/yr
[1920-1930] -1.45 %/yr
[1930-1940] +0.64 %/yr
[1940-1950] +0.79 %/yr
[1950-1960] -0.15 %/yr
[1960-1970] -0.48 %/yr
[1970-1980] +0.71 %/yr
[1980-1990] -1.28 %/yr
[1990-2000] -1.66 %/yr
[2000-2005] -0.22 %/yr
[2005-2010] -0.27 %/yr
[2010-2014] -0.72 %/yr
• Chicora borough population
7.1 mi, 
184°
• East Brady borough
7.9 mi, 
129°
• Parker city
3.3 mi, 
41°
• St. Petersburg borough
8.3 mi, 
27°
• Eau Claire borough
6.8 mi, 
326°
• Karns City borough
4 mi, 179°
• Petrolia borough
2.3 mi, 
166°
• Fairview borough
2.8 mi, 
197°
• Foxburg borough
6.5 mi, 
23°
• Cherry Valley borough
8.2 mi, 332°
*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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