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Davenport-Moline-Rock Island, IA-IL MSA Regional Analytics
  -- Population & Components of Change; 2010-15

Components of Change: 7/1/2010-6/30/2015
Natural Change 5,657
  equals Births 23,838
  less Deaths 18,181
Net Migration -1,863
  equals net International Migration 2,942
  plus net Domestic Migration -4,805

The population of the Davenport-Moline-Rock Island, IA-IL MSA changed from 380,236 on 2010 to 383,606 in 2015 -- a change of 3,370 (0.89%). This report provides a summary of how and why the population has changed during this period and what these factors suggest about future change.

Primary Contributing Factors to Change
The primary contributing factors resulting in population change are 1) natural change (births less deaths) and/or 2) net migration. Eight tables are presented below providing annual data for each component county of the metro and metro summary. The tables provide data on the total population, births, deaths, natural change (births less deaths), international migration, domestic migration and net migration.

From 2010 to 2015 (7/1/2010-6/30/2015), natural change (5,657) exceeded net migration (-1,863); natural change has been the primary contributing factor for the total metro population change. Examine the metro by county tables below to learn about how each county contributes to the metro population growth or decline.

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Related Sections
  • Davenport-Moline-Rock Island, IA-IL MSA S&O Report
  • State of the States -- all states interactive table
  • Metro S&O Reports -- all metros interactive table
  • CountyTrends 2010-2015 -- all counties interactive table
  • CountyTrends -- multi-sourced county data
  • Regional Data Analytics Main

Table 1. Population          
Area NameGeoIDItem201020112012201320142015Chg 10-15%Chg 10-15
Henry County, IL17073P0000001 50,445 50,305 50,142 49,804 49,677 49,489 -956 -1.90
Mercer County, IL17131P0000001 16,415 16,353 16,199 16,146 15,978 15,858 -557 -3.39
Rock Island County, IL17161P0000001 147,632 147,431 147,713 147,626 146,903 146,133 -1,499 -1.02
Scott County, IA19163P0000001 165,744 167,058 168,836 170,513 171,437 172,126 6,382 3.85
Total P0000001 380,236 381,147 382,890 384,089 383,995 383,606 3,370 0.89
Table 2. Births          
Area NameGeoIDItem201020112012201320142015Sum11-15 
Henry County, IL17073B0000001 556 554 539 546 544 550 2,733 
Mercer County, IL17131B0000001 160 148 151 148 159 154 760 
Rock Island County, IL17161B0000001 1,920 1,870 1,900 1,781 1,835 1,767 9,153 
Scott County, IA19163B0000001 2,076 2,185 2,243 2,213 2,289 2,262 11,192 
Total B0000001 4,712 4,757 4,833 4,688 4,827 4,733 23,838 
Table 3. Deaths          
Area NameGeoIDItem201020112012201320142015Sum11-15 
Henry County, IL17073D0000001 432 525 531 515 540 524 2,635 
Mercer County, IL17131D0000001 232 164 172 189 188 174 887 
Rock Island County, IL17161D0000001 1,192 1,546 1,567 1,573 1,440 1,425 7,551 
Scott County, IA19163D0000001 1,240 1,431 1,429 1,461 1,396 1,391 7,108 
Total D0000001 3,096 3,666 3,699 3,738 3,564 3,514 18,181 
Table 4. Natural Change          
Area NameGeoIDItem201020112012201320142015Sum11-15 
Henry County, IL17073NC000001 124 29 8 31 4 26 98 
Mercer County, IL17131NC000001 -72 -16 -21 -41 -29 -20 -127 
Rock Island County, IL17161NC000001 728 324 333 208 395 342 1,602 
Scott County, IA19163NC000001 836 754 814 752 893 871 4,084 
Total NC000001 1,616 1,091 1,134 950 1,263 1,219 5,657 
Table 5. International Migration          
Area NameGeoIDItem201020112012201320142015Sum11-15 
Henry County, IL17073MI000001 0 3 1 1 3 2 10 
Mercer County, IL17131MI000001 0 5 5 5 5 5 25 
Rock Island County, IL17161MI000001 284 316 396 415 473 483 2,083 
Scott County, IA19163MI000001 84 136 145 163 191 189 824 
Total MI000001 368 460 547 584 672 679 2,942 
Table 6. Domestic Migration          
Area NameGeoIDItem201020112012201320142015Sum11-15 
Henry County, IL17073MD000001 -284 -159 -158 -382 -105 -196 -1,000 
Mercer County, IL17131MD000001 0 -64 -141 -27 -135 -94 -461 
Rock Island County, IL17161MD000001 -664 -755 -443 -675 -1,562 -1,525 -4,960 
Scott County, IA19163MD000001 1,124 462 812 779 -55 -382 1,616 
Total MD000001 176 -516 70 -305 -1,857 -2,197 -4,805 
Table 7. Net Migration          
Area NameGeoIDItem201020112012201320142015Sum11-15 
Henry County, IL17073MN000001 -284 -156 -157 -381 -102 -194 -990 
Mercer County, IL17131MN000001 0 -59 -136 -22 -130 -89 -436 
Rock Island County, IL17161MN000001 -380 -439 -47 -260 -1,089 -1,042 -2,877 
Scott County, IA19163MN000001 1,208 598 957 942 136 -193 2,440 
Total MN000001 544 -56 617 279 -1,185 -1,518 -1,863 
Table 8. Group Quarters          
Area NameGeoIDItem201020112012201320142015Chg10-15%Chg 10-15
Henry County, IL17073GQ000001 724 724 726 725 727 726 2 0.28
Mercer County, IL17131GQ000001 185 185 185 185 185 185 0 0.00
Rock Island County, IL17161GQ000001 4,313 4,345 4,493 4,636 4,633 4,631 318 7.37
Scott County, IA19163GQ000001 3,334 3,358 3,487 3,498 3,484 3,484 150 4.50
Total GQ000001 8,556 8,612 8,891 9,044 9,029 9,026 470 5.49

Source: developed by ProximityOne based on Census Bureau and other data.
  -- http://proximityone.com (888.364.7656)