Population.us

Population of Derby, CT

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 2024 would be 12,439*.

Historical population

Historical population of Derby city for period 1870-2014:

Derby city on population map

Estimated population for 2014^[1]. Click on flag to hide it.

Population • Legends • Position

Settlements near Derby city

• 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°

Sources, notices

*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