| Certified Enrollment | |||||
| September 2004 and September 2005 | |||||
| Listed in Rank Order by Size | |||||
| District | September | September | Percent | ||
| District Name | Number | 2004 | 2005 | Difference | Change |
| DES MOINES INDEPENDENT | 1737 | 31,873.6 | 31,548.6 | -325.0 | -0.01 |
| CEDAR RAPIDS | 1053 | 17,691.1 | 17,754.3 | 63.2 | 0.00 |
| DAVENPORT | 1611 | 16,809.0 | 16,704.2 | -104.8 | -0.01 |
| SIOUX CITY | 6039 | 14,276.1 | 14,138.7 | -137.4 | -0.01 |
| IOWA CITY | 3141 | 10,945.3 | 11,062.9 | 117.6 | 0.01 |
| WATERLOO | 6795 | 11,056.3 | 10,956.1 | -100.2 | -0.01 |
| DUBUQUE | 1863 | 10,423.5 | 10,547.4 | 123.9 | 0.01 |
| COUNCIL BLUFFS | 1476 | 9,662.2 | 9,477.6 | -184.6 | -0.02 |
| WEST DES MOINES | 6957 | 8,773.9 | 8,798.9 | 25.0 | 0.00 |
| ANKENY | 261 | 6,692.1 | 7,106.1 | 414.0 | 0.06 |
| LINN-MAR | 3715 | 5,628.2 | 5,779.9 | 151.7 | 0.03 |
| MUSCATINE | 4581 | 5,569.4 | 5,556.8 | -12.6 | 0.00 |
| MARSHALLTOWN | 4104 | 5,198.6 | 5,303.1 | 104.5 | 0.02 |
| SOUTHEAST POLK | 6101 | 5,067.2 | 5,282.8 | 215.6 | 0.04 |
| JOHNSTON | 3231 | 4,885.6 | 5,186.0 | 300.4 | 0.06 |
| OTTUMWA | 5049 | 4,889.6 | 4,859.7 | -29.9 | -0.01 |
| BURLINGTON | 882 | 4,644.1 | 4,636.5 | -7.6 | 0.00 |
| WAUKEE | 6822 | 4,031.1 | 4,528.0 | 496.9 | 0.12 |
| CLINTON | 1278 | 4,423.2 | 4,424.8 | 1.6 | 0.00 |
| AMES | 225 | 4,365.7 | 4,333.5 | -32.2 | -0.01 |
| CEDAR FALLS | 1044 | 4,267.1 | 4,251.4 | -15.7 | 0.00 |
| MASON CITY | 4131 | 4,240.7 | 4,112.6 | -128.1 | -0.03 |
| FORT DODGE | 2313 | 4,090.5 | 4,079.2 | -11.3 | 0.00 |
| BETTENDORF | 621 | 4,127.3 | 4,037.5 | -89.8 | -0.02 |
| COLLEGE | 1337 | 3,525.3 | 3,656.8 | 131.5 | 0.04 |
| NEWTON | 4725 | 3,389.2 | 3,396.7 | 7.5 | 0.00 |
| PLEASANT VALLEY | 5250 | 3,208.4 | 3,295.4 | 87.0 | 0.03 |
| INDIANOLA | 3114 | 3,205.7 | 3,266.7 | 61.0 | 0.02 |
| URBANDALE | 6579 | 3,089.8 | 3,117.5 | 27.7 | 0.01 |
| NORTH SCOTT | 4784 | 2,973.3 | 3,006.6 | 33.3 | 0.01 |
| WESTERN DUBUQUE | 6961 | 2,766.9 | 2,771.3 | 4.4 | 0.00 |
| LEWIS CENTRAL | 3645 | 2,478.8 | 2,559.9 | 81.1 | 0.03 |
| OSKALOOSA | 5013 | 2,465.4 | 2,466.2 | 0.8 | 0.00 |
| FORT MADISON | 2322 | 2,445.9 | 2,458.6 | 12.7 | 0.01 |
| BOONE | 729 | 2,393.1 | 2,372.2 | -20.9 | -0.01 |
| KEOKUK | 3312 | 2,397.7 | 2,353.6 | -44.1 | -0.02 |
| LE MARS | 3600 | 2,277.9 | 2,292.0 | 14.1 | 0.01 |
| NORWALK | 4797 | 2,185.5 | 2,238.0 | 52.5 | 0.02 |
| MOUNT PLEASANT | 4536 | 2,130.6 | 2,175.7 | 45.1 | 0.02 |
| PELLA | 5166 | 2,086.1 | 2,100.9 | 14.8 | 0.01 |
| KNOXVILLE | 3375 | 2,059.1 | 2,066.8 | 7.7 | 0.00 |
| GLENWOOD | 2511 | 2,040.3 | 2,040.6 | 0.3 | 0.00 |
| FAIRFIELD | 2169 | 2,068.5 | 2,025.9 | -42.6 | -0.02 |
| STORM LAKE | 6219 | 1,894.5 | 1,945.9 | 51.4 | 0.03 |
| VINTON-SHELLSBURG | 6660 | 1,964.6 | 1,907.9 | -56.7 | -0.03 |
| SPENCER | 6102 | 1,923.1 | 1,907.1 | -16.0 | -0.01 |
| PERRY | 5184 | 1,838.4 | 1,889.6 | 51.2 | 0.03 |
| WAVERLY-SHELL ROCK | 6840 | 1,847.6 | 1,873.2 | 25.6 | 0.01 |
| DENISON | 1701 | 1,894.6 | 1,839.9 | -54.7 | -0.03 |
| CARROLL | 999 | 1,818.1 | 1,834.3 | 16.2 | 0.01 |
| WASHINGTON | 6768 | 1,800.8 | 1,815.8 | 15.0 | 0.01 |
| MARION INDEPENDENT | 4086 | 1,894.4 | 1,814.1 | -80.3 | -0.04 |
| GRINNELL-NEWBURG | 2709 | 1,733.8 | 1,751.4 | 17.6 | 0.01 |
| WINTERSET | 7056 | 1,674.6 | 1,679.8 | 5.2 | 0.00 |
| BENTON | 609 | 1,696.7 | 1,676.9 | -19.8 | -0.01 |
| WEST DELAWARE COUNTY | 6950 | 1,663.4 | 1,674.7 | 11.3 | 0.01 |
| WEBSTER CITY | 6867 | 1,646.3 | 1,641.9 | -4.4 | 0.00 |
| CHARLES CITY | 1116 | 1,596.6 | 1,637.2 | 40.6 | 0.03 |
| SOUTH TAMA COUNTY | 6098 | 1,692.8 | 1,629.4 | -63.4 | -0.04 |
| CARLISLE | 981 | 1,534.0 | 1,613.2 | 79.2 | 0.05 |
| DALLAS CENTER-GRIMES | 1576 | 1,594.6 | 1,611.5 | 16.9 | 0.01 |
| HARLAN | 2826 | 1,592.9 | 1,604.0 | 11.1 | 0.01 |
| CENTERVILLE | 1071 | 1,586.7 | 1,580.4 | -6.3 | 0.00 |
| CENTRAL CLINTON | 1082 | 1,588.7 | 1,579.6 | -9.1 | -0.01 |
| NEVADA | 4617 | 1,531.6 | 1,546.7 | 15.1 | 0.01 |
| MAQUOKETA | 4041 | 1,498.2 | 1,521.4 | 23.2 | 0.02 |
| ATLANTIC | 387 | 1,440.6 | 1,491.0 | 50.4 | 0.03 |
| INDEPENDENCE | 3105 | 1,505.6 | 1,481.3 | -24.3 | -0.02 |
| CHARITON | 1107 | 1,482.4 | 1,455.5 | -26.9 | -0.02 |
| CRESTON | 1503 | 1,438.6 | 1,454.6 | 16.0 | 0.01 |
| DECORAH | 1638 | 1,451.3 | 1,445.4 | -5.9 | 0.00 |
| OELWEIN | 4869 | 1,468.5 | 1,444.1 | -24.4 | -0.02 |
| HOWARD-WINNESHIEK | 3029 | 1,478.7 | 1,437.1 | -41.6 | -0.03 |
| ALLAMAKEE | 135 | 1,472.1 | 1,429.2 | -42.9 | -0.03 |
| ADEL-DESOTO-MINBURN | 27 | 1,414.7 | 1,424.4 | 9.7 | 0.01 |
| CLEAR LAKE | 1233 | 1,422.2 | 1,405.0 | -17.2 | -0.01 |
| CLARKE | 1211 | 1,387.3 | 1,390.4 | 3.1 | 0.00 |
| ESTHERVILLE LINCOLN | 2124 | 1,382.0 | 1,381.4 | -0.6 | 0.00 |
| SERGEANT BLUFF-LUTON | 5877 | 1,339.3 | 1,376.0 | 36.7 | 0.03 |
| CLEAR CREEK AMANA | 1221 | 1,295.6 | 1,371.8 | 76.2 | 0.06 |
| ANAMOSA | 234 | 1,369.6 | 1,371.4 | 1.8 | 0.00 |
| BALLARD | 472 | 1,297.0 | 1,359.8 | 62.8 | 0.05 |
| SAYDEL | 5805 | 1,409.9 | 1,358.1 | -51.8 | -0.04 |
| RED OAK | 5463 | 1,371.6 | 1,328.1 | -43.5 | -0.03 |
| FOREST CITY | 2295 | 1,388.6 | 1,316.6 | -72.0 | -0.05 |
| MOC-FLOYD VALLEY | 4149 | 1,300.6 | 1,315.6 | 15.0 | 0.01 |
| MID-PRAIRIE | 4271 | 1,240.0 | 1,269.4 | 29.4 | 0.02 |
| ALBIA | 81 | 1,296.4 | 1,249.2 | -47.2 | -0.04 |
| UNION | 6536 | 1,244.3 | 1,240.2 | -4.1 | 0.00 |
| HAMPTON-DUMONT | 2781 | 1,228.7 | 1,227.2 | -1.5 | 0.00 |
| WEST LIBERTY | 6975 | 1,197.3 | 1,226.1 | 28.8 | 0.02 |
| SPIRIT LAKE | 6120 | 1,259.0 | 1,223.0 | -36.0 | -0.03 |
| DAVIS COUNTY | 1619 | 1,225.3 | 1,220.5 | -4.8 | 0.00 |
| HUMBOLDT | 3060 | 1,243.2 | 1,214.8 | -28.4 | -0.02 |
| ALGONA | 126 | 1,251.9 | 1,212.4 | -39.5 | -0.03 |
| SOLON | 6093 | 1,181.8 | 1,192.7 | 10.9 | 0.01 |
| CENTER POINT-URBANA | 1062 | 1,140.7 | 1,189.3 | 48.6 | 0.04 |
| WILLIAMSBURG | 7029 | 1,136.9 | 1,150.3 | 13.4 | 0.01 |
| IOWA FALLS | 3150 | 1,094.3 | 1,122.7 | 28.4 | 0.03 |
| NEW HAMPTON | 4662 | 1,111.8 | 1,113.6 | 1.8 | 0.00 |
| SHENANDOAH | 5976 | 1,066.3 | 1,094.4 | 28.1 | 0.03 |
| JEFFERSON-SCRANTON | 3195 | 1,119.7 | 1,083.1 | -36.6 | -0.03 |
| BONDURANT-FARRAR | 720 | 986.9 | 1,074.8 | 87.9 | 0.09 |
| GILBERT | 2466 | 990.7 | 1,072.0 | 81.3 | 0.08 |
| SHELDON | 5949 | 1,036.7 | 1,054.8 | 18.1 | 0.02 |
| CHEROKEE | 1152 | 1,091.8 | 1,052.9 | -38.9 | -0.04 |
| NORTH POLK | 4779 | 1,007.1 | 1,048.1 | 41.0 | 0.04 |
| NORTH FAYETTE | 4774 | 1,022.6 | 1,047.9 | 25.3 | 0.02 |
| MOUNT VERNON | 4554 | 1,026.0 | 1,040.1 | 14.1 | 0.01 |
| COLUMBUS | 1368 | 1,044.2 | 1,037.2 | -7.0 | -0.01 |
| ROLAND-STORY | 5643 | 1,051.9 | 1,035.4 | -16.5 | -0.02 |
| MONTICELLO | 4446 | 1,024.6 | 1,027.4 | 2.8 | 0.00 |
| CLARINDA | 1197 | 970.8 | 1,009.6 | 38.8 | 0.04 |
| OSAGE | 4995 | 1,010.5 | 1,005.6 | -4.9 | 0.00 |
| NORTH CEDAR | 3691 | 1,007.3 | 995.6 | -11.7 | -0.01 |
| CENTRAL LEE | 1079 | 999.5 | 992.8 | -6.7 | -0.01 |
| PCM | 5160 | 974.4 | 991.5 | 17.1 | 0.02 |
| WEST CENTRAL VALLEY | 6264 | 995.5 | 986.8 | -8.7 | -0.01 |
| SIOUX CENTER | 6030 | 934.0 | 957.1 | 23.1 | 0.02 |
| CAMANCHE | 936 | 927.1 | 956.1 | 29.0 | 0.03 |
| OKOBOJI | 4890 | 938.6 | 948.6 | 10.0 | 0.01 |
| CLARION-GOLDFIELD | 1206 | 963.6 | 938.6 | -25.0 | -0.03 |
| MFL MARMAC | 4419 | 949.1 | 934.3 | -14.8 | -0.02 |
| MISSOURI VALLEY | 4356 | 929.4 | 930.6 | 1.2 | 0.00 |
| MEDIAPOLIS | 4203 | 892.8 | 907.4 | 14.6 | 0.02 |
| EAGLE GROVE | 1944 | 912.2 | 906.5 | -5.7 | -0.01 |
| INTERSTATE 35 | 3119 | 816.7 | 904.1 | 87.4 | 0.11 |
| WILTON | 7038 | 904.0 | 899.0 | -5.0 | -0.01 |
| LOUISA-MUSCATINE | 3841 | 892.4 | 890.2 | -2.2 | 0.00 |
| COLFAX-MINGO | 1332 | 901.0 | 866.7 | -34.3 | -0.04 |
| WEST MARSHALL | 6985 | 860.1 | 864.0 | 3.9 | 0.00 |
| WAPELLO | 6759 | 849.0 | 863.3 | 14.3 | 0.02 |
| MAQUOKETA VALLEY | 4043 | 899.1 | 858.1 | -41.0 | -0.05 |
| SIBLEY-OCHEYEDAN | 5994 | 882.3 | 849.4 | -32.9 | -0.04 |
| JESUP | 3204 | 814.2 | 829.4 | 15.2 | 0.02 |
| DIKE-NEW HARTFORD | 1791 | 808.6 | 811.5 | 2.9 | 0.00 |
| PANORAMA | 5121 | 810.8 | 807.8 | -3.0 | 0.00 |
| TIPTON | 6408 | 823.0 | 806.6 | -16.4 | -0.02 |
| EDDYVILLE-BLAKESBURG | 657 | 780.4 | 804.3 | 23.9 | 0.03 |
| GLADBROOK-REINBECK | 2502 | 800.4 | 798.1 | -2.3 | 0.00 |
| GARNER-HAYFIELD | 2403 | 813.1 | 797.0 | -16.1 | -0.02 |
| APLINGTON-PARKERSBURG | 279 | 805.0 | 787.2 | -17.8 | -0.02 |
| WEST BRANCH | 6930 | 774.6 | 781.5 | 6.9 | 0.01 |
| SOUTH HAMILTON | 6095 | 768.8 | 781.4 | 12.6 | 0.02 |
| AGWSR | 9 | 832.3 | 778.0 | -54.3 | -0.07 |
| TRI-CENTER | 6460 | 772.8 | 774.4 | 1.6 | 0.00 |
| NASHUA-PLAINFIELD | 4599 | 774.1 | 772.2 | -1.9 | 0.00 |
| VAN BUREN | 6592 | 842.2 | 770.9 | -71.3 | -0.08 |
| NORTH LINN | 4777 | 766.8 | 757.1 | -9.7 | -0.01 |
| BELMOND-KLEMME | 594 | 765.2 | 754.0 | -11.2 | -0.01 |
| NODAWAY VALLEY | 2673 | 792.4 | 747.7 | -44.7 | -0.06 |
| WOODWARD-GRANGER | 7110 | 701.2 | 747.7 | 46.5 | 0.07 |
| OGDEN | 4878 | 772.6 | 747.3 | -25.3 | -0.03 |
| STARMONT | 6175 | 778.4 | 746.4 | -32.0 | -0.04 |
| PRAIRIE VALLEY | 5325 | 743.0 | 746.0 | 3.0 | 0.00 |
| WEST LYON | 6983 | 772.1 | 740.6 | -31.5 | -0.04 |
| HARTLEY-MELVIN-SANBORN | 2862 | 777.8 | 737.5 | -40.3 | -0.05 |
| EAST MARSHALL | 1968 | 735.6 | 736.8 | 1.2 | 0.00 |
| HUDSON | 3042 | 707.0 | 733.0 | 26.0 | 0.04 |
| ST ANSGAR | 5751 | 734.4 | 732.5 | -1.9 | 0.00 |
| UNDERWOOD | 6534 | 727.1 | 728.6 | 1.5 | 0.00 |
| WEST SIOUX | 6990 | 736.2 | 725.0 | -11.2 | -0.02 |
| CENTRAL LYON | 1095 | 699.0 | 722.0 | 23.0 | 0.03 |
| BATTLE CREEK-IDA GROVE | 504 | 751.8 | 719.3 | -32.5 | -0.04 |
| CENTRAL DECATUR | 1093 | 750.0 | 717.7 | -32.3 | -0.04 |
| PEKIN | 5163 | 729.8 | 715.7 | -14.1 | -0.02 |
| MANSON NORTHWEST WEBSTER | 4023 | 773.3 | 707.7 | -65.6 | -0.08 |
| SOUTH O'BRIEN | 6099 | 735.6 | 706.6 | -29.0 | -0.04 |
| DENVER | 1719 | 697.7 | 693.6 | -4.1 | -0.01 |
| A-H-S-T | 441 | 685.8 | 692.8 | 7.0 | 0.01 |
| WEST MONONA | 6987 | 728.4 | 687.1 | -41.3 | -0.06 |
| WAPSIE VALLEY | 6762 | 678.1 | 683.2 | 5.1 | 0.01 |
| EMMETSBURG | 2088 | 677.4 | 682.2 | 4.8 | 0.01 |
| CLAYTON RIDGE | 2763 | 689.1 | 680.7 | -8.4 | -0.01 |
| LAKE MILLS | 3420 | 683.8 | 678.9 | -4.9 | -0.01 |
| CARDINAL | 977 | 678.7 | 676.3 | -2.4 | 0.00 |
| AUDUBON | 414 | 687.0 | 675.0 | -12.0 | -0.02 |
| RIVERSIDE | 5510 | 677.4 | 674.4 | -3.0 | 0.00 |
| LOGAN-MAGNOLIA | 3798 | 670.6 | 672.8 | 2.2 | 0.00 |
| SIGOURNEY | 6012 | 644.0 | 672.0 | 28.0 | 0.04 |
| PLEASANTVILLE | 5256 | 635.9 | 670.9 | 35.0 | 0.06 |
| ELDORA-NEW PROVIDENCE | 2007 | 661.6 | 663.3 | 1.7 | 0.00 |
| BELLEVUE | 585 | 666.8 | 656.0 | -10.8 | -0.02 |
| BELLE PLAINE | 576 | 658.8 | 655.4 | -3.4 | -0.01 |
| POSTVILLE | 5310 | 653.8 | 654.6 | 0.8 | 0.00 |
| SOUTH WINNESHIEK | 6100 | 643.1 | 651.1 | 8.0 | 0.01 |
| HIGHLAND | 2977 | 660.0 | 651.0 | -9.0 | -0.01 |
| MOUNT AYR | 4527 | 676.6 | 651.0 | -25.6 | -0.04 |
| GRISWOLD | 2718 | 663.8 | 648.9 | -14.9 | -0.02 |
| POCAHONTAS AREA | 5283 | 664.3 | 645.8 | -18.5 | -0.03 |
| IOWA VALLEY | 3154 | 669.1 | 644.9 | -24.2 | -0.04 |
| WEST HANCOCK | 819 | 657.0 | 641.5 | -15.5 | -0.02 |
| LISBON | 3744 | 651.5 | 634.2 | -17.3 | -0.03 |
| BROOKLYN-GUERNSEY-MALCOM | 846 | 647.8 | 628.5 | -19.3 | |