Last official estimated population of Union City city (Alameda County**, California state) was 73,621 (year 2014)[1]. This was 0.023% of total US population and 0.19% of total California state population. Area of Union City city is 19.4 mi² (=50.2 km²)[6], in this year population density was 3,794.90 p/mi². If population growth rate would be same as in period 2010-2014 (+1.44%/yr), Union City city population in 2026 would be 87,449*.
Historical population of Union City city for period 1960-2014:
Estimated population for 2014[1]. Click on flag to hide it.
Population • Legends • Position
[1960-1970] +8.33 %/yr
[1970-1980] +10.35 %/yr
[1980-1990] +3.16 %/yr
[1990-2000] +2.2 %/yr
[2000-2005] -0.08 %/yr
[2005-2010] +0.88 %/yr
[2010-2014] +1.44 %/yr
• Fremont city population
8.6 mi, 
150°
• Hayward city
5.1 mi, 
289°
• San Leandro city
10.5 mi, 
311°
• Redwood City city
12.3 mi, 
240°
• Pleasanton city
8.7 mi, 
59°
• San Ramon city
12.1 mi, 
22°
• Dublin city
10.3 mi, 
40°
• Newark city
6.8 mi, 
186°
• Menlo Park city
11.1 mi, 
219°
• East Palo Alto city
11.2 mi, 
213°
*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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