Last official estimated population of Scott County was 165,752 (year 2014)[1]. This was 0.052% of total US population and 5.3% of total Iowa state population. Area of Scott County is 468.2 mi² (=1212.7 km²), in this year population density was 354.01 p/mi². If population growth rate would be same as in period 2010-2014 (+0.08%/yr), Scott County population in 2025 would be 167,213 [0].
Historical population of Scott County for period 1840-2014 [1] , [2] , [3]:
Estimated population for 2014[1]. Population density is in p./sq.mi [4]. Changes are for period 2010-2015. Value is %/year. Boundary lines are approx. 2012 [5]. Click on flag to hide it.
Population • Density • Changes • Legends • Position
[1840-1850] +10.83 %/yr
[1850-1860] +15.8 %/yr
[1860-1870] +4.05 %/yr
[1870-1880] +0.67 %/yr
[1880-1890] +0.45 %/yr
[1890-1900] +1.79 %/yr
[1900-1910] +1.53 %/yr
[1910-1920] +2.11 %/yr
[1920-1930] +0.45 %/yr
[1930-1940] +0.92 %/yr
[1940-1950] +1.74 %/yr
[1950-1960] +1.69 %/yr
[1960-1970] +1.83 %/yr
[1970-1980] +1.15 %/yr
[1980-1990] -0.58 %/yr
[1990-2000] +0.5 %/yr
[2000-2005] -0.02 %/yr
[2005-2010] +0.83 %/yr
[2010-2014] +0.08 %/yr
Looking for settlements in Scott County? Visit this page: Settlements in Scott County, IA
Population of Scott County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 5764 | 5488 | 11,252 |
| 5 to 9 | 5847 | 5796 | 11,643 |
| 10 to 14 | 5868 | 5685 | 11,553 |
| 15 to 19 | 5703 | 5377 | 11,080 |
| 20 to 24 | 5133 | 5399 | 10,532 |
| 25 to 29 | 5682 | 5847 | 11,529 |
| 30 to 34 | 5960 | 6001 | 11,961 |
| 35 to 39 | 5429 | 5390 | 10,819 |
| 40 to 44 | 5353 | 5296 | 10,649 |
| 45 to 49 | 5548 | 5473 | 11,021 |
| 50 to 54 | 5954 | 6222 | 12,176 |
| 55 to 59 | 5889 | 6154 | 12,043 |
| 60 to 64 | 5151 | 5336 | 10,487 |
| 65 to 69 | 3991 | 4299 | 8,290 |
| 70 to 74 | 2609 | 2991 | 5,600 |
| 75 to 79 | 1812 | 2334 | 4,146 |
| 80 to 84 | 1234 | 1811 | 3,045 |
| 85+ | 1135 | 2426 | 3,561 |
Scott County resident population estimates by Sex, Race, and Hispanic Origin[1b]. For full list of abbrevations see: population.us/about page.
| Race | Male | Female | Total |
| NH | 78477 | 82176 | 160,653 |
| WAC | 75179 | 78051 | 153,230 |
| WA | 72970 | 75696 | 148,666 |
| NHWAC | 70071 | 73379 | 143,450 |
| NHWA | 68106 | 71289 | 139,395 |
| BAC | 7829 | 8243 | 16,072 |
| NHBAC | 7389 | 7814 | 15,203 |
| BA | 6239 | 6577 | 12,816 |
| NHBA | 5958 | 6312 | 12,270 |
| H | 5585 | 5149 | 10,734 |
| HWAC | 5108 | 4672 | 9,780 |
| HWA | 4864 | 4407 | 9,271 |
| AAC | 2562 | 2600 | 5,162 |
| NHAAC | 2479 | 2529 | 5,008 |
| TOM | 2339 | 2484 | 4,823 |
| AA | 2162 | 2175 | 4,337 |
| NHTOM | 2073 | 2193 | 4,266 |
| NHAA | 2117 | 2134 | 4,251 |
| IAC | 905 | 1006 | 1,911 |
| NHIAC | 676 | 726 | 1,402 |
| HBAC | 440 | 429 | 869 |
| IA | 291 | 330 | 621 |
| HTOM | 266 | 291 | 557 |
| HBA | 281 | 265 | 546 |
| HIAC | 229 | 280 | 509 |
| NHIA | 189 | 206 | 395 |
| NAC | 136 | 128 | 264 |
| HIA | 102 | 124 | 226 |
| NHNAC | 99 | 93 | 192 |
| HAAC | 83 | 71 | 154 |
| NA | 61 | 63 | 124 |
| HAA | 45 | 41 | 86 |
| NHNA | 34 | 42 | 76 |
| HNAC | 37 | 35 | 72 |
| HNA | 27 | 21 | 48 |
• Rock Island County population
12.3 mi, 
167°
• Whiteside County
37.5 mi, 
78°
• Henry County
32.5 mi, 
128°
• Clinton County
18.3 mi, 
14°
• Muscatine County
27.9 mi, 
246°
• Jones County
42 mi, 
322°
• Jackson County
36.2 mi, 
3°
• Cedar County
27.8 mi, 
288°
• Mercer County
30.8 mi, 
191°
• Louisa County
44 mi, 
228°
[0] Calculated by population.us from last known population growth rate, not official data.
[1] County population - 2014, archived from the original, retrieved 02/23/2016
[1b] Annual County Resident Population Estimates by Age, Sex, Race, and Hispanic Origin, (used only data for 2014) archived from the original, retrieved 02/23/2016
[2] County population - 2000-2010, archived from the original, retrieved 02/23/2016
[3] Population of States and Counties of the United States: 1790 to 1992, PDF, 15 Mb, census.gov, retrieved 02/23/2016
[4] County area, latitude longitude data, retrieved 02/23/2016
[5] County boundaries, CSV files on boundaries.us, retrived 03/18/2016
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