Last official estimated population of Derby city (New Haven County**, Connecticut state) was 12,768 (year 2014)[1]. This was 0.004% of total US population and 0.36% of total Connecticut state population. Area of Derby city is 5.4 mi² (=14 km²)[6], in this year population density was 2,361.82 p/mi². If population growth rate would be same as in period 2010-2014 (-0.26%/yr), Derby city population in 2025 would be 12,407*.
Historical population of Derby city for period 1870-2014:
Estimated population for 2014[1]. Click on flag to hide it.
Population • Legends • Position
[1870-1880] +3.71 %/yr
[1880-1890] +3.85 %/yr
[1890-1900] +6.04 %/yr
[1900-1910] +1.26 %/yr
[1910-1920] +2.26 %/yr
[1920-1930] -0.41 %/yr
[1930-1940] -0.47 %/yr
[1940-1950] -0.03 %/yr
[1950-1960] +1.69 %/yr
[1960-1970] +0.38 %/yr
[1970-1980] -0.2 %/yr
[1980-1990] -0.1 %/yr
[1990-2000] +0.12 %/yr
[2000-2005] +0.52 %/yr
[2005-2010] +0.32 %/yr
[2010-2014] -0.26 %/yr
• Bridgeport city population
11.2 mi, 211°
• New Haven city
8.2 mi, 97°
• Waterbury city
16.2 mi, 8°
• West Haven city
7 mi, 121°
• Milford city (balance)
7.1 mi, 172°
• Shelton city
3.3 mi, 243°
• Naugatuck borough
11.3 mi, 8°
• Ansonia city
1.4 mi, 27°
• Newtown borough
13.3 mi, 296°
• Woodmont borough
8.4 mi, 146°
*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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