Buying Land in Fremont County, Iowa

Zoning: Chapter 335, run out of the county engineer's office

Fremont County has adopted zoning under Iowa Code Chapter 335, the standard framework most Iowa counties use, with a Zoning Commission that reviews and recommends ordinance and zoning-map changes to the Board of Supervisors. What's a little unusual here is the administrative structure: rather than a standalone planning-and-zoning department, the county's Zoning Administrator is the County Engineer, and the Sheriff serves as assistant zoning administrator responsible for enforcement. For a buyer, the practical effect is that zoning questions, permit applications, and enforcement all route through offices that also handle roads and law enforcement -- confirm current process and turnaround time directly rather than assuming a dedicated zoning staff exists.

Wells and septic: contracted to Mills County

Unlike counties that staff their own environmental health office, Fremont County contracts this function out. What began as a temporary 2024 staff-sharing agreement between the two counties has become Fremont County's ongoing arrangement: Mills County Public Health/Environmental Health, based in Glenwood, administers septic and well permits for Fremont County property. The published fee schedule covering this work lists $500 for a new septic permit, $150 for a tank-only permit, $250 for a well permit, and $150 for a Time of Transfer binding agreement -- consistent in structure with Iowa's statewide 2009 Time of Transfer law requiring septic inspection before a sale closes, but administered from outside the county. Confirm current fees and scheduling directly with Mills County Environmental Health before planning a build timeline.

Flood risk: the defining fact for land here

Fremont County sits directly on the Missouri River, and the river's flood history here is real, recent, and consequential rather than a theoretical hazard. A levee south of Hamburg suffered a total collapse in June 2011 -- a 300-foot section failed after earlier partial breaches -- forcing roughly a fifth of the town to evacuate during a flood year that killed five people and flooded more than 4,000 homes regionally. Then, in 2019, the Missouri River broke that record by nearly two feet in Fremont County specifically, part of a disaster that breached or overtopped 17 levees across Iowa, Nebraska, and Missouri and caused more than $2 billion in regional crop damage.

The county has responded with active, ongoing infrastructure work rather than treating either flood as a one-time event: the Iowa Highway 2/Interstate 29 'Crossroads' Levee District, created after a resident petition and funded and built by the Iowa DOT, was still showing construction payment applications in the county's April 2026 supervisor meeting records, and federal disaster funding secured as recently as 2025 was still repairing Mule Slough Drainage District infrastructure damaged by the 2019 flood. See our dedicated flood-zones page for what this means for evaluating a specific parcel's flood exposure and mitigation status.