Last official estimated population of Monmouth city (Polk County**, Oregon state) was 9,950 (year 2014)[1]. This was 0.003% of total US population and 0.25% of total Oregon state population. Area of Monmouth city is 2.2 mi² (=5.8 km²)[6], in this year population density was 4,441.96 p/mi². If population growth rate would be same as in period 2010-2014 (+1.07%/yr), Monmouth city population in 2024 would be 11,071*.
Historical population of Monmouth city for period 1880-2014:
Estimated population for 2014[1]. Click on flag to hide it.
Population • Legends • Position
[1880-1900] +4.18 %/yr
[1900-1910] -2.04 %/yr
[1910-1920] +1.67 %/yr
[1920-1930] +4.53 %/yr
[1930-1940] +0.63 %/yr
[1940-1950] +7.32 %/yr
[1950-1960] +1.32 %/yr
[1960-1970] +8.92 %/yr
[1970-1980] +0.66 %/yr
[1980-1990] +1.17 %/yr
[1990-2000] +2.16 %/yr
[2000-2005] +2.28 %/yr
[2005-2010] +1.83 %/yr
[2010-2014] +1.07 %/yr
• Salem city population
11.2 mi, 63°
• Albany city
16.7 mi, 157°
• Keizer city
14.5 mi, 43°
• Dallas city
6.5 mi, 319°
• Independence city
1.6 mi, 71°
• Jefferson city
14.3 mi, 130°
• Turner city
13.6 mi, 90°
• Millersburg city
14.1 mi, 147°
• Falls City city
10.3 mi, 275°
• Adair Village city
12.4 mi, 177°
*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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