Sioux City, IA Fire Regulations: Wildfire Zones (2026)

Iowa is not classified as a high-wildfire-risk state and Sioux City does not maintain wildfire hazard severity zones comparable to those used in California (Cal Fire Fire Hazard Severity Zone maps) or Arizona. There is no defensible-space clearance ordinance, no requirement for ignition-resistant siding or vents, and no separate WUI building code overlay. The risk profile Iowa actually manages is rural grassland and prairie burns — controlled and uncontrolled vegetation fires across the agricultural landscape of Woodbury County and surrounding rural areas. The Iowa State Fire Marshal Division (https://dps.iowa.gov/divisions-iowa-department-public-safety/iowa-state-fire-marshal-division/state-fire-marshal-division-general-information) maintains a county-by-county burn-ban dashboard at https://dps.iowa.gov/divisions/state-fire-marshal/burn-bans showing active bans triggered by drought, low humidity, and wind conditions. Woodbury County has entered partial or full burn bans multiple times in recent fire seasons, including a partial ban declared February 27, 2026 (https://www.ktiv.com/2026/02/27/partial-burn-ban-declared-parts-woodbury-county/) and earlier 2025 bans affecting Anthon, Correctionville, Danbury, Lawton, Moville, Oto, Pierson, Salix, Sergeant Bluff, and Sloan fire districts (https://siouxcityjournal.com/news/local/burnban-drought-woodburycounty-siouxcounty-plymouthcounty-fire/article_f7b934e4-9c61-11ef-9337-1f8c916502e7.html). When the State Fire Marshal proclaims a burn ban, all open burning in the county is suspended — including Sioux City's $20 permits and homeowner recreational fires unless specifically exempted. The Iowa DNR's open-burning rule at 567 IAC 23.2 (https://www.legis.iowa.gov/docs/iac/rule/567.23.2.pdf) carves out prescribed prairie, grassland, wetland, woodland, and wildlife-habitat burns under specific conditions, recognizing the role of fire in tallgrass-prairie restoration. Anyone planning a prescribed prairie burn near Sioux City should coordinate with the Iowa DNR, the Woodbury County Conservation Board, and adjacent municipal fire departments before ignition.