| Zip Code | City / Town | State | Returns | Total ($1000) | Avg/return |
| 50014 | Ames | Iowa | 1,530 | $46,628 | $30,476 |
| 52246 | Iowa City | Iowa | 1,440 | $41,372 | $28,731 |
| 50010 | Ames | Iowa | 2,790 | $75,152 | $26,936 |
| 52411 | Cedar Rapids | Iowa | 770 | $20,308 | $26,374 |
| 52807 | Davenport | Iowa | 1,610 | $41,913 | $26,033 |
| 50134 | Kelley | Iowa | 70 | $1,765 | $25,214 |
| 52722 | Bettendorf | Iowa | 4,590 | $115,427 | $25,147 |
| 52245 | Iowa City | Iowa | 1,880 | $47,204 | $25,109 |
| 51534 | Glenwood | Iowa | 970 | $24,184 | $24,932 |
| 52726 | Blue Grass | Iowa | 660 | $15,783 | $23,914 |
| 52328 | Robins | Iowa | 320 | $7,587 | $23,709 |
| 51355 | Okoboji | Iowa | 140 | $3,249 | $23,207 |
| 52756 | Long Grove | Iowa | 280 | $6,466 | $23,093 |
| 52241 | Coralville | Iowa | 1,350 | $30,656 | $22,708 |
| 50613 | Cedar Falls | Iowa | 4,170 | $94,477 | $22,656 |
| 50323 | Urbandale | Iowa | 1,050 | $23,767 | $22,635 |
| 51542 | Honey Creek | Iowa | 120 | $2,707 | $22,558 |
| 52338 | Swisher | Iowa | 370 | $8,312 | $22,465 |
| 52768 | Princeton | Iowa | 180 | $4,035 | $22,417 |
| 50643 | Hudson | Iowa | 320 | $7,166 | $22,394 |
| 52240 | Iowa City | Iowa | 2,240 | $50,044 | $22,341 |
| 50234 | Rhodes | Iowa | 60 | $1,339 | $22,317 |
| 50321 | Des Moines | Iowa | 780 | $17,374 | $22,274 |
| 52748 | Eldridge | Iowa | 930 | $20,568 | $22,116 |
| 51526 | Crescent | Iowa | 240 | $5,286 | $22,025 |
| 51576 | Underwood | Iowa | 170 | $3,725 | $21,912 |
| 52753 | Le Claire | Iowa | 670 | $14,676 | $21,904 |
| 50131 | Johnston | Iowa | 1,820 | $39,499 | $21,703 |
| 50226 | Polk City | Iowa | 450 | $9,758 | $21,684 |
| 52552 | Drakesville | Iowa | 70 | $1,512 | $21,600 |
| 50061 | Cumming | Iowa | 180 | $3,876 | $21,533 |
| 52745 | Dixon | Iowa | 60 | $1,290 | $21,500 |
| 51503 | Council Bluffs | Iowa | 4,040 | $86,289 | $21,359 |
| 50622 | Denver | Iowa | 380 | $8,107 | $21,334 |
| 50216 | Panora | Iowa | 380 | $8,062 | $21,216 |
| 50021 | Ankeny | Iowa | 2,410 | $51,116 | $21,210 |
| 50312 | Des Moines | Iowa | 1,710 | $36,203 | $21,171 |
| 50139 | Lacona | Iowa | 130 | $2,745 | $21,115 |
| 50624 | Dike | Iowa | 220 | $4,626 | $21,027 |
| 51561 | Pacific Junction | Iowa | 180 | $3,773 | $20,961 |
| 52314 | Mount Vernon | Iowa | 540 | $11,278 | $20,885 |
| 52658 | Wever | Iowa | 130 | $2,710 | $20,846 |
| 52333 | Solon | Iowa | 780 | $16,259 | $20,845 |
| 50325 | Clive | Iowa | 1,640 | $34,153 | $20,825 |
| 50023 | Ankeny | Iowa | 2,670 | $55,455 | $20,770 |
| 50105 | Gilbert | Iowa | 110 | $2,284 | $20,764 |
| 50276 | Woodward | Iowa | 260 | $5,390 | $20,731 |
| 50229 | Prole | Iowa | 110 | $2,279 | $20,718 |
| 52806 | Davenport | Iowa | 3,060 | $62,822 | $20,530 |
| 50322 | Urbandale | Iowa | 3,490 | $71,292 | $20,428 |
| 50327 | Des Moines | Iowa | 1,160 | $23,668 | $20,403 |
| 50109 | Granger | Iowa | 250 | $5,085 | $20,340 |
| 50324 | Windsor Heights | Iowa | 660 | $13,413 | $20,323 |
| 51575 | Treynor | Iowa | 180 | $3,657 | $20,317 |
| 50003 | Adel | Iowa | 710 | $14,422 | $20,313 |
| 50701 | Waterloo | Iowa | 3,410 | $69,169 | $20,284 |
| 50125 | Indianola | Iowa | 2,110 | $42,699 | $20,236 |
| 52803 | Davenport | Iowa | 1,820 | $36,741 | $20,187 |
| 52650 | Sperry | Iowa | 110 | $2,215 | $20,136 |
| 52565 | Keosauqua | Iowa | 270 | $5,435 | $20,130 |
| 50647 | Janesville | Iowa | 260 | $5,218 | $20,069 |
| 52146 | Harpers Ferry | Iowa | 150 | $3,002 | $20,013 |
| 50124 | Huxley | Iowa | 300 | $5,965 | $19,883 |
| 50007 | Alleman | Iowa | 50 | $992 | $19,840 |
| 52327 | Riverside | Iowa | 280 | $5,527 | $19,739 |
| 50138 | Knoxville | Iowa | 1,370 | $26,971 | $19,687 |
| 52101 | Decorah | Iowa | 1,400 | $27,523 | $19,659 |
| 50248 | Story City | Iowa | 530 | $10,401 | $19,625 |
| 52070 | Sabula | Iowa | 150 | $2,932 | $19,547 |
| 51551 | Malvern | Iowa | 190 | $3,712 | $19,537 |
| 52569 | Melrose | Iowa | 90 | $1,757 | $19,522 |
| 50046 | Cambridge | Iowa | 140 | $2,728 | $19,486 |
| 50140 | Lamoni | Iowa | 210 | $4,088 | $19,467 |
| 50266 | West Des Moines | Iowa | 2,440 | $47,474 | $19,457 |
| 52653 | Wapello | Iowa | 380 | $7,378 | $19,416 |
| 50169 | Mitchellville | Iowa | 270 | $5,229 | $19,367 |
| 52205 | Anamosa | Iowa | 900 | $17,397 | $19,330 |
| 52228 | Fairfax | Iowa | 320 | $6,185 | $19,328 |
| 52341 | Toddville | Iowa | 150 | $2,897 | $19,313 |
| 52068 | Peosta | Iowa | 370 | $7,144 | $19,308 |
| 50265 | West Des Moines | Iowa | 3,190 | $61,559 | $19,297 |
| 52403 | Cedar Rapids | Iowa | 2,510 | $48,436 | $19,297 |
| 50036 | Boone | Iowa | 1,800 | $34,706 | $19,281 |
| 50612 | Buckingham | Iowa | 40 | $771 | $19,275 |
| 50009 | Altoona | Iowa | 1,850 | $35,537 | $19,209 |
| 52003 | Dubuque | Iowa | 1,730 | $33,182 | $19,180 |
| 50211 | Norwalk | Iowa | 1,170 | $22,397 | $19,143 |
| 50677 | Waverly | Iowa | 1,340 | $25,641 | $19,135 |
| 52157 | Mc Gregor | Iowa | 200 | $3,788 | $18,940 |
| 52151 | Lansing | Iowa | 230 | $4,338 | $18,861 |
| 52638 | Middletown | Iowa | 70 | $1,320 | $18,857 |
| 52804 | Davenport | Iowa | 2,940 | $55,432 | $18,854 |
| 52746 | Donahue | Iowa | 120 | $2,260 | $18,833 |
| 50237 | Runnells | Iowa | 340 | $6,393 | $18,803 |
| 51360 | Spirit Lake | Iowa | 1,010 | $18,979 | $18,791 |
| 52031 | Bellevue | Iowa | 560 | $10,514 | $18,775 |
| 51555 | Missouri Valley | Iowa | 520 | $9,743 | $18,737 |
| 51632 | Clarinda | Iowa | 640 | $11,957 | $18,683 |
| 50128 | Jamaica | Iowa | 30 | $560 | $18,667 |
| 51525 | Carson | Iowa | 130 | $2,422 | $18,631 |
| 50660 | New Hartford | Iowa | 140 | $2,606 | $18,614 |
| 51523 | Blencoe | Iowa | 20 | $372 | $18,600 |
| 52594 | Unionville | Iowa | 40 | $742 | $18,550 |
| 50028 | Baxter | Iowa | 170 | $3,144 | $18,494 |
| 51104 | Sioux City | Iowa | 1,810 | $33,438 | $18,474 |
| 52626 | Farmington | Iowa | 140 | $2,585 | $18,464 |
| 50651 | La Porte City | Iowa | 430 | $7,928 | $18,437 |
| 52761 | Muscatine | Iowa | 3,090 | $56,918 | $18,420 |
| 52501 | Ottumwa | Iowa | 2,830 | $52,051 | $18,393 |
| 50845 | Diagonal | Iowa | 50 | $919 | $18,380 |
| 52571 | Moravia | Iowa | 170 | $3,118 | $18,341 |
| 52233 | Hiawatha | Iowa | 700 | $12,835 | $18,336 |
| 50201 | Nevada | Iowa | 840 | $15,378 | $18,307 |
| 51052 | Salix | Iowa | 80 | $1,463 | $18,288 |
| 52002 | Dubuque | Iowa | 1,930 | $35,281 | $18,280 |
| 51540 | Hastings | Iowa | 40 | $731 | $18,275 |
| 50171 | Montezuma | Iowa | 320 | $5,843 | $18,259 |
| 50049 | Chariton | Iowa | 600 | $10,944 | $18,240 |
| 50667 | Raymond | Iowa | 90 | $1,639 | $18,211 |
| 50263 | Waukee | Iowa | 1,350 | $24,581 | $18,208 |
| 51653 | Tabor | Iowa | 150 | $2,731 | $18,207 |
| 52627 | Fort Madison | Iowa | 1,470 | $26,724 | $18,180 |
| 52567 | Libertyville | Iowa | 50 | $907 | $18,140 |
| 51331 | Arnolds Park | Iowa | 190 | $3,441 | $18,111 |
| 52302 | Marion | Iowa | 4,330 | $78,421 | $18,111 |
| 50141 | Laurel | Iowa | 60 | $1,084 | $18,067 |
| 51558 | Moorhead | Iowa | 40 | $722 | $18,050 |
| 50047 | Carlisle | Iowa | 610 | $11,010 | $18,049 |
| 50161 | Maxwell | Iowa | 180 | $3,242 | $18,011 |
| 50236 | Roland | Iowa | 150 | $2,701 | $18,007 |
| 51510 | Carter Lake | Iowa | 310 | $5,580 | $18,000 |
| 50801 | Creston | Iowa | 950 | $17,098 | $17,998 |
| 52536 | Blakesburg | Iowa | 130 | $2,331 | $17,931 |
| 50644 | Independence | Iowa | 980 | $17,545 | $17,903 |
| 50210 | New Virginia | Iowa | 200 | $3,579 | $17,895 |
| 50156 | Madrid | Iowa | 520 | $9,275 | $17,837 |
| 51024 | Hinton | Iowa | 180 | $3,201 | $17,783 |
| 52655 | West Burlington | Iowa | 580 | $10,297 | $17,753 |
| 52079 | Zwingle | Iowa | 80 | $1,419 | $17,738 |
| 50273 | Winterset | Iowa | 820 | $14,526 | $17,715 |
| 52402 | Cedar Rapids | Iowa | 4,300 | $76,123 | $17,703 |
| 50225 | Pleasantville | Iowa | 310 | $5,487 | $17,700 |
| 52340 | Tiffin | Iowa | 200 | $3,536 | $17,680 |
| 52556 | Fairfield | Iowa | 1,110 | $19,612 | $17,668 |
| 51351 | Milford | Iowa | 470 | $8,303 | $17,666 |
| 51106 | Sioux City | Iowa | 2,570 | $45,392 | $17,662 |
| 51639 | Farragut | Iowa | 80 | $1,410 | $17,625 |
| 52765 | New Liberty | Iowa | 40 | $705 | $17,625 |
| 50310 | Des Moines | Iowa | 2,890 | $50,890 | $17,609 |
| 50158 | Marshalltown | Iowa | 3,030 | $53,336 | $17,603 |
| 51573 | Stanton | Iowa | 120 | $2,112 | $17,600 |
| 50208 | Newton | Iowa | 2,460 | $43,250 | $17,581 |
| 51016 | Correctionville | Iowa | 110 | $1,933 | $17,573 |
| 51563 | Persia | Iowa | 70 | $1,228 | $17,543 |
| 51054 | Sergeant Bluff | Iowa | 440 | $7,712 | $17,527 |
| 50670 | Shell Rock | Iowa | 270 | $4,719 | $17,478 |
| 52043 | Elkader | Iowa | 280 | $4,893 | $17,475 |
| 52349 | Vinton | Iowa | 760 | $13,268 | $17,458 |
| 50001 | Ackworth | Iowa | 70 | $1,222 | $17,457 |
| 51652 | Sidney | Iowa | 180 | $3,141 | $17,450 |
| 50022 | Atlantic | Iowa | 830 | $14,480 | $17,446 |
| 52405 | Cedar Rapids | Iowa | 2,900 | $50,554 | $17,432 |
| 52324 | Palo | Iowa | 190 | $3,306 | $17,400 |
| 50244 | Slater | Iowa | 190 | $3,305 | $17,395 |
| 50170 | Monroe | Iowa | 300 | $5,206 | $17,353 |
| 52601 | Burlington | Iowa | 3,460 | $59,893 | $17,310 |
| 52641 | Mount Pleasant | Iowa | 1,210 | $20,911 | $17,282 |
| 51556 | Modale | Iowa | 30 | $518 | $17,267 |
| 51055 | Sloan | Iowa | 110 | $1,899 | $17,264 |
| 52580 | Packwood | Iowa | 40 | $690 | $17,250 |
| 50648 | Jesup | Iowa | 410 | $7,068 | $17,239 |
| 50833 | Bedford | Iowa | 230 | $3,962 | $17,226 |
| 52160 | New Albin | Iowa | 80 | $1,377 | $17,213 |
| 52639 | Montrose | Iowa | 240 | $4,120 | $17,167 |
| 50247 | State Center | Iowa | 250 | $4,290 | $17,160 |
| 51546 | Logan | Iowa | 250 | $4,286 | $17,144 |
| 52358 | West Branch | Iowa | 400 | $6,845 | $17,113 |
| 51559 | Neola | Iowa | 170 | $2,908 | $17,106 |
| 52175 | West Union | Iowa | 320 | $5,474 | $17,106 |
| 50464 | Plymouth | Iowa | 60 | $1,025 | $17,083 |
| 51365 | Wallingford | Iowa | 20 | $341 | $17,050 |
| 52326 | Quasqueton | Iowa | 60 | $1,020 | $17,000 |
| 52742 | De Witt | Iowa | 840 | $14,270 | $16,988 |
| 52754 | Letts | Iowa | 140 | $2,376 | $16,971 |
| 50629 | Fairbank | Iowa | 220 | $3,731 | $16,959 |
| 50074 | Ellston | Iowa | 50 | $847 | $16,940 |
| 51654 | Thurman | Iowa | 50 | $847 | $16,940 |
| 50147 | Lineville | Iowa | 20 | $338 | $16,900 |
| 52623 | Danville | Iowa | 240 | $4,055 | $16,896 |
| 52732 | Clinton | Iowa | 2,920 | $49,281 | $16,877 |
| 51007 | Bronson | Iowa | 70 | $1,181 | $16,871 |
| 50076 | Exira | Iowa | 100 | $1,687 | $16,870 |
| 52202 | Alburnett | Iowa | 120 | $2,024 | $16,867 |
| 52585 | Richland | Iowa | 90 | $1,517 | $16,856 |
| 52203 | Amana | Iowa | 240 | $4,038 | $16,825 |
| 52773 | Walcott | Iowa | 270 | $4,539 | $16,811 |
| 52640 | Morning Sun | Iowa | 110 | $1,848 | $16,800 |
| 52537 | Bloomfield | Iowa | 610 | $10,237 | $16,782 |
| 52659 | Winfield | Iowa | 130 | $2,179 | $16,762 |
| 50320 | Des Moines | Iowa | 1,640 | $27,481 | $16,757 |
| 50228 | Prairie City | Iowa | 260 | $4,355 | $16,750 |
| 50150 | Lovilia | Iowa | 80 | $1,338 | $16,725 |
| 52317 | North Liberty | Iowa | 1,190 | $19,902 | $16,724 |
| 50072 | Earlham | Iowa | 270 | $4,510 | $16,704 |
| 51108 | Sioux City | Iowa | 520 | $8,686 | $16,704 |
| 52052 | Guttenberg | Iowa | 420 | $7,009 | $16,688 |
| 52213 | Center Point | Iowa | 440 | $7,342 | $16,686 |
| 50238 | Russell | Iowa | 90 | $1,497 | $16,633 |
| 51571 | Silver City | Iowa | 60 | $998 | $16,633 |
| 50002 | Adair | Iowa | 100 | $1,663 | $16,630 |
| 50519 | Bode | Iowa | 50 | $831 | $16,620 |
| 51034 | Mapleton | Iowa | 160 | $2,657 | $16,606 |
| 50702 | Waterloo | Iowa | 2,130 | $35,362 | $16,602 |
| 52247 | Kalona | Iowa | 370 | $6,140 | $16,595 |
| 52356 | Wellman | Iowa | 200 | $3,318 | $16,590 |
| 52342 | Toledo | Iowa | 320 | $5,307 | $16,584 |
| 51450 | Lake View | Iowa | 190 | $3,145 | $16,553 |
| 52751 | Grand Mound | Iowa | 110 | $1,820 | $16,545 |
| 52325 | Parnell | Iowa | 50 | $827 | $16,540 |
| 52201 | Ainsworth | Iowa | 100 | $1,653 | $16,530 |
| 52001 | Dubuque | Iowa | 4,270 | $70,485 | $16,507 |
| 52144 | Fort Atkinson | Iowa | 80 | $1,318 | $16,475 |
| 52555 | Exline | Iowa | 30 | $492 | $16,400 |
| 52352 | Walker | Iowa | 190 | $3,114 | $16,389 |
| 51012 | Cherokee | Iowa | 700 | $11,467 | $16,381 |
| 50168 | Mingo | Iowa | 100 | $1,630 | $16,300 |
| 50619 | Clarksville | Iowa | 230 | $3,744 | $16,278 |
| 50130 | Jewell | Iowa | 170 | $2,767 | $16,276 |
| 52142 | Fayette | Iowa | 130 | $2,115 | $16,269 |
| 50060 | Corydon | Iowa | 250 | $4,067 | $16,268 |
| 50252 | Swan | Iowa | 30 | $488 | $16,267 |
| 52054 | La Motte | Iowa | 90 | $1,464 | $16,267 |
| 50112 | Grinnell | Iowa | 1,090 | $17,724 | $16,261 |
| 50311 | Des Moines | Iowa | 850 | $13,814 | $16,252 |
| 52057 | Manchester | Iowa | 750 | $12,189 | $16,252 |
| 51631 | Braddyville | Iowa | 20 | $325 | $16,250 |
| 52227 | Ely | Iowa | 240 | $3,900 | $16,250 |
| 51442 | Denison | Iowa | 660 | $10,717 | $16,238 |
| 51245 | Primghar | Iowa | 110 | $1,786 | $16,236 |
| 50854 | Mount Ayr | Iowa | 260 | $4,218 | $16,223 |
| 51039 | Moville | Iowa | 200 | $3,244 | $16,220 |
| 52637 | Mediapolis | Iowa | 250 | $4,052 | $16,208 |
| 52216 | Clarence | Iowa | 140 | $2,266 | $16,186 |
| 52632 | Keokuk | Iowa | 1,250 | $20,233 | $16,186 |
| 50501 | Fort Dodge | Iowa | 2,720 | $44,009 | $16,180 |
| 52336 | Springville | Iowa | 270 | $4,368 | $16,178 |
| 52322 | Oxford | Iowa | 250 | $4,041 | $16,164 |
| 52214 | Central City | Iowa | 380 | $6,142 | $16,163 |
| 50428 | Clear Lake | Iowa | 1,140 | $18,400 | $16,140 |
| 50071 | Dows | Iowa | 100 | $1,613 | $16,130 |