Data disclaimer: Based on the NFIRS Public Data Release (2021–2025). NFIRS is voluntarily reported and may not include all departments or incidents. Some departments have missing years or incomplete records. Totals shown reflect data as submitted and may not represent complete activity.
Incident Composition (2021–2025)
5-Year Trends
Total Incidents
By Incident Type
Key Metrics
213,585
Avg Incidents / Year
63.7%
EMS Share
5.1%
Fire Share
8.1%
False Alarm Rate
+53.1%
5-Year Trend
Polk
Busiest County
Counties
| County ▲ | Population ▲ | Departments ▲ | 5-Year Incidents ▼ | Incidents / 1K / Yr ▲ | EMS % ▲ |
|---|---|---|---|---|---|
| Polk | 492,316 | 19 | 189,904 | 77.1 | 55.9% |
| Scott | 174,636 | 15 | 114,492 | 131.1 | 64.9% |
| Linn | 230,253 | 21 | 103,679 | 90.1 | 60.3% |
| Pottawattamie | 93,646 | 15 | 66,586 | 142.2 | 76.6% |
| Jackson | 19,475 | 11 | 57,205 | 587.5 | 74.1% |
| Dubuque | 99,148 | 15 | 48,002 | 96.8 | 77.7% |
| Cerro Gordo | 43,117 | 9 | 35,214 | 163.3 | 86.3% |
| Story | 98,533 | 14 | 34,858 | 70.8 | 58.5% |
| Johnson | 152,809 | 9 | 34,302 | 44.9 | 50.1% |
| Black Hawk | 131,044 | 8 | 30,636 | 46.8 | 56.8% |
| Muscatine | 43,233 | 10 | 30,370 | 140.5 | 84.5% |
| Des Moines | 38,895 | 6 | 29,479 | 151.6 | 76% |
| Warren | 52,398 | 11 | 28,812 | 110.0 | 73.7% |
| Wapello | 35,423 | 6 | 22,459 | 126.8 | 71.6% |
| Lee | 33,538 | 12 | 19,938 | 118.9 | 68.3% |
| Winneshiek | 20,051 | 8 | 19,301 | 192.5 | 42.3% |
| Dallas | 99,673 | 14 | 18,853 | 37.8 | 61.3% |
| Jasper | 37,808 | 12 | 16,474 | 87.1 | 85.1% |
| Clinton | 46,429 | 15 | 14,086 | 60.7 | 69.5% |
| Guthrie | 10,623 | 11 | 13,259 | 249.6 | 63.8% |
| Webster | 36,988 | 13 | 12,841 | 69.4 | 67.3% |
| Marion | 33,404 | 12 | 11,210 | 67.1 | 75.2% |
| Boone | 26,715 | 6 | 10,370 | 77.6 | 67.8% |
| Mills | 14,475 | 9 | 8,168 | 112.9 | 62.8% |
| Poweshiek | 18,662 | 7 | 5,321 | 57.0 | 67.5% |
| Plymouth | 25,687 | 9 | 3,319 | 25.8 | 14.3% |
| Mahaska | 22,167 | 7 | 2,863 | 25.8 | 15.2% |
| Jefferson | 15,635 | 5 | 2,828 | 36.2 | 51% |
| Floyd | 15,615 | 8 | 2,815 | 36.1 | 50% |
| Cedar | 18,505 | 8 | 2,641 | 28.5 | 31.2% |
| Benton | 25,558 | 15 | 2,505 | 19.6 | 49.9% |
| Louisa | 10,837 | 7 | 2,483 | 45.8 | 74.1% |
| Sioux | 35,872 | 13 | 2,404 | 13.4 | 23.2% |
| Buchanan | 20,565 | 12 | 2,346 | 22.8 | 38.1% |
| Marshall | 40,092 | 12 | 2,149 | 10.7 | 44.8% |
| Washington | 22,565 | 8 | 1,994 | 17.7 | 29.7% |
| Cass | 13,124 | 8 | 1,913 | 29.2 | 62.1% |
| Harrison | 14,559 | 10 | 1,881 | 25.8 | 64.8% |
| Buena Vista | 20,823 | 9 | 1,824 | 17.5 | 21.1% |
| Appanoose | 12,311 | 7 | 1,739 | 28.3 | 57% |
| Hardin | 16,876 | 13 | 1,733 | 20.5 | 28.6% |
| Tama | 17,081 | 12 | 1,645 | 19.3 | 38% |
| Montgomery | 10,330 | 5 | 1,547 | 30.0 | 61.8% |
| Clay | 16,377 | 10 | 1,462 | 17.9 | 53.5% |
| Page | 15,202 | 10 | 1,351 | 17.8 | 21.3% |
| Fremont | 6,605 | 9 | 1,313 | 39.8 | 56.5% |
| Davis | 9,094 | 4 | 1,298 | 28.5 | 18.8% |
| Delaware | 17,486 | 11 | 1,275 | 14.6 | 32% |
| Woodbury | 105,853 | 15 | 1,112 | 2.1 | 17.9% |
| Madison | 16,548 | 8 | 1,098 | 13.3 | 19.3% |
| Keokuk | 10,033 | 16 | 1,088 | 21.7 | 31.5% |
| Hamilton | 15,039 | 9 | 1,081 | 14.4 | 11.7% |
| Chickasaw | 12,002 | 7 | 1,027 | 17.1 | 25.5% |
| O'Brien | 14,182 | 11 | 986 | 13.9 | 40.9% |
| Fayette | 19,509 | 15 | 973 | 10.0 | 22.7% |
| Butler | 14,334 | 10 | 961 | 13.4 | 52.5% |
| Carroll | 20,756 | 12 | 951 | 9.2 | 32.6% |
| Lucas | 8,623 | 5 | 951 | 22.1 | 29% |
| Jones | 20,631 | 10 | 908 | 8.8 | 32.3% |
| Iowa | 16,661 | 11 | 900 | 10.8 | 14.1% |
| Bremer | 24,970 | 7 | 895 | 7.2 | 33.1% |
| Clarke | 9,747 | 3 | 882 | 18.1 | 34.6% |
| Sac | 9,814 | 9 | 864 | 17.6 | 47% |
| Crawford | 16,525 | 11 | 842 | 10.2 | 36.6% |
| Cherokee | 11,649 | 9 | 805 | 13.8 | 29.4% |
| Emmet | 9,388 | 6 | 768 | 16.4 | 25.5% |
| Adair | 7,418 | 5 | 711 | 19.2 | 48.8% |
| Clayton | 17,028 | 13 | 672 | 7.9 | 37.8% |
| Henry | 20,465 | 9 | 669 | 6.5 | 46.6% |
| Wright | 12,937 | 8 | 625 | 9.7 | 39.8% |
| Wayne | 6,492 | 7 | 597 | 18.4 | 23.6% |
| Allamakee | 14,052 | 6 | 587 | 8.4 | 22.5% |
| Dickinson | 17,612 | 7 | 577 | 6.6 | 10.4% |
| Howard | 9,449 | 5 | 572 | 12.1 | 26.2% |
| Greene | 8,769 | 7 | 565 | 12.9 | 67.1% |
| Monroe | 7,577 | 3 | 454 | 12.0 | 28.9% |
| Monona | 8,738 | 9 | 448 | 10.3 | 26.3% |
| Winnebago | 10,679 | 6 | 411 | 7.7 | 19.2% |
| Worth | 7,443 | 7 | 402 | 10.8 | 51.2% |
| Audubon | 5,674 | 5 | 381 | 13.4 | 12.6% |
| Hancock | 10,795 | 8 | 374 | 6.9 | 35.3% |
| Kossuth | 14,815 | 12 | 371 | 5.0 | 23.7% |
| Adams | 3,704 | 3 | 363 | 19.6 | 53.4% |
| Shelby | 11,738 | 11 | 305 | 5.2 | 37.4% |
| Calhoun | 9,927 | 11 | 297 | 6.0 | 15.5% |
| Mitchell | 10,556 | 7 | 284 | 5.4 | 17.3% |
| Van Buren | 7,203 | 9 | 275 | 7.6 | 34.5% |
| Grundy | 12,329 | 8 | 248 | 4.0 | 19.4% |
| Lyon | 11,934 | 8 | 241 | 4.0 | 42.7% |
| Ringgold | 4,653 | 5 | 232 | 10.0 | 11.6% |
| Ida | 7,001 | 5 | 214 | 6.1 | 30.4% |
| Humboldt | 9,597 | 10 | 162 | 3.4 | 23.5% |
| Pocahontas | 7,078 | 8 | 157 | 4.4 | 20.4% |
| Palo Alto | 8,984 | 9 | 142 | 3.2 | 16.2% |
| Franklin | 10,019 | 9 | 128 | 2.6 | 11.7% |
| Osceola | 6,192 | 6 | 110 | 3.6 | 24.5% |
| Decatur | 7,645 | 9 | 75 | 2.0 | 12% |
| Taylor | 5,889 | 8 | 64 | 2.2 | 39.1% |
| Union | 12,125 | 4 | 19 | 0.3 | 21.1% |
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