Economic activity is dispersed throughout the state.
Economic Share measures the percentage of the state's economy that
is accounted for by an individual county. The economic share is
measured as the average of the percentage of the state's employment,
population, and personal income that occurs in a particular county.
The table below presents those counties that account for a large
proportion of the state's economy, based on employment, population,
and income. Missouri’s metropolitan areas account for a major part
of the state’s economy with St. Louis County (20.2%) and Jackson
County (11.6%) together tallying nearly one-third of the total.
Conversely, several counties in the state account for less than 0.1%
of the state’s economy.

Economic Share in Missouri by County, 2006

From 1996 to 2006, county contribution to the state’s economy has not changed drastically. However, there have been some shifts in Missouri’s economic composition. The map below shows the change in county share from 1996 to 2006. Counties in green gained economic share over the period, while counties in orange had decreasing shares.
The most notable shift is found in the St. Louis and Kansas City areas as St. Louis County, St. Louis City and Jackson County decreased in share while surrounding counties generally increased, particularly St. Charles County. Christian County also gained in economic share.
Change
in Economic Share by County
1996 - 2006

2006 Economic Share Factors 2005 Personal Income 2005 Personal Income Share 2006 Population 2006 Population Share 2006 Employment 2006 Employment Share Missouri 181,066,380 -- 5,842,713 -- 2,885,868 -- Adair 551,114 0.3% 24,461 0.4% 12,779 0.4% Andrew 489,642 0.3% 17,177 0.3% 9,674 0.3% Atchison 160,809 0.1% 6,132 0.1% 2,965 0.1% Audrain 610,468 0.3% 25,739 0.4% 11,267 0.4% Barry 839,839 0.5% 36,404 0.6% 16,526 0.6% Barton 288,394 0.2% 13,015 0.2% 5,639 0.2% Bates 429,564 0.2% 17,116 0.3% 7,611 0.3% Benton 408,609 0.2% 18,728 0.3% 7,814 0.3% Bollinger 258,768 0.1% 12,323 0.2% 5,670 0.2% Boone 4,517,993 2.5% 146,048 2.5% 84,623 2.9% Buchanan 2,342,240 1.3% 84,955 1.5% 44,623 1.5% Butler 1,100,146 0.6% 41,582 0.7% 20,051 0.7% Caldwell 237,313 0.1% 9,313 0.2% 4,243 0.1% Callaway 998,767 0.6% 43,072 0.7% 21,717 0.8% Camden 1,105,284 0.6% 40,283 0.7% 20,545 0.7% Cape Girardeau 2,050,826 1.1% 71,892 1.2% 37,499 1.3% Carroll 235,304 0.1% 10,058 0.2% 4,919 0.2% Carter 134,258 0.1% 5,956 0.1% 2,721 0.1% Cass 2,712,389 1.5% 95,781 1.6% 47,341 1.6% Cedar 296,802 0.2% 13,998 0.2% 5,859 0.2% Chariton 200,278 0.1% 8,046 0.1% 3,744 0.1% Christian 1,695,789 0.9% 70,514 1.2% 37,092 1.3% Clark 159,520 0.1% 7,305 0.1% 3,400 0.1% Clay 6,694,520 3.7% 206,957 3.5% 108,617 3.8% Clinton 578,265 0.3% 20,671 0.4% 10,001 0.3% Cole 2,449,245 1.4% 73,296 1.3% 38,845 1.3% Cooper 403,630 0.2% 17,441 0.3% 8,552 0.3% Crawford 605,141 0.3% 24,009 0.4% 11,136 0.4% Dade 179,009 0.1% 7,804 0.1% 3,635 0.1% Dallas 385,599 0.2% 16,696 0.3% 7,309 0.3% Daviess 180,474 0.1% 8,072 0.1% 3,832 0.1% DeKalb 218,003 0.1% 12,309 0.2% 4,957 0.2% Dent 336,416 0.2% 15,276 0.3% 6,065 0.2% Douglas 273,321 0.2% 13,658 0.2% 5,531 0.2% Dunklin 782,202 0.4% 32,277 0.6% 13,036 0.5% Franklin 2,909,377 1.6% 100,067 1.7% 50,382 1.7% Gasconade 398,842 0.2% 15,634 0.3% 7,543 0.3% Gentry 161,023 0.1% 6,389 0.1% 3,152 0.1% Greene 7,607,061 4.2% 254,779 4.4% 136,232 4.7% Grundy 235,478 0.1% 10,239 0.2% 4,464 0.2% Harrison 192,807 0.1% 8,898 0.2% 4,251 0.1% Henry 568,133 0.3% 22,719 0.4% 9,991 0.3% Hickory 171,481 0.1% 9,243 0.2% 3,106 0.1% Holt 121,660 0.1% 4,997 0.1% 2,541 0.1% Howard 255,112 0.1% 9,949 0.2% 5,288 0.2% Howell 862,911 0.5% 38,734 0.7% 18,508 0.6% Iron 227,997 0.1% 10,279 0.2% 4,570 0.2% Jackson 22,237,709 12.3% 664,078 11.4% 322,350 11.2% Jasper 2,824,906 1.6% 112,505 1.9% 53,654 1.9% Jefferson 5,927,486 3.3% 216,469 3.7% 111,588 3.9% Johnson 1,243,676 0.7% 50,646 0.9% 24,877 0.9% Knox 91,200 0.1% 4,093 0.1% 2,197 0.1% Laclede 805,021 0.4% 35,091 0.6% 16,178 0.6% Lafayette 960,762 0.5% 33,186 0.6% 16,174 0.6% Lawrence 799,849 0.4% 37,400 0.6% 18,136 0.6% Lewis 211,006 0.1% 10,152 0.2% 5,574 0.2% Lincoln 1,201,546 0.7% 50,123 0.9% 23,622 0.8% Linn 315,627 0.2% 12,865 0.2% 5,999 0.2% Livingston 373,361 0.2% 14,291 0.2% 6,549 0.2% Macon 378,071 0.2% 15,651 0.3% 7,650 0.3%