Last official estimated population of Rio Dell city (Humboldt County**, California state) was 3,377 (year 2014)[1]. This was 0.001% of total US population and 0.01% of total California state population. Area of Rio Dell city is 2.4 mi² (=6.3 km²)[6], in this year population density was 1,397.19 p/mi². If population growth rate would be same as in period 2010-2014 (+0.07%/yr), Rio Dell city population in 2026 would be 3,404*.
Historical population of Rio Dell city for period 1890-2014:
Estimated population for 2014[1]. Click on flag to hide it.
Population • Legends • Position
[1890-1950] +3.68 %/yr
[1950-1960] +5.64 %/yr
[1960-1970] -1.33 %/yr
[1970-1980] -0.47 %/yr
[1980-1990] +1.33 %/yr
[1990-2000] +0.28 %/yr
[2000-2005] +0.81 %/yr
[2005-2010] +0.5 %/yr
[2010-2014] +0.07 %/yr
• Eureka city population
20.7 mi, 
354°
• Arcata city
25.4 mi, 
4°
• Fortuna city
6.4 mi, 346°
• Shasta Lake city
91.8 mi, 
82°
• Fort Bragg city
74.7 mi, 
167°
• Crescent City city
87.8 mi, 
357°
• Willits city
85.6 mi, 
151°
• Ferndale city
9.7 mi, 
307°
• Blue Lake city
27.5 mi, 
13°
• Trinidad city
38.9 mi, 357°
*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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