Buying Land in Scott County, Iowa

Zoning and subdivision in a genuinely urbanized county

Scott County Planning and Development is responsible for current and future land use in all unincorporated areas of the county, administering Chapter 6 (the Zoning Ordinance for Unincorporated Areas, current through amendments adopted April 14, 2022 and after) and a separate Chapter 9 Subdivision Ordinance. The Planning and Zoning Commission advises the Board of Supervisors on zoning-map amendments, the comprehensive development plan, and subdivision plats; a separately constituted Zoning Board of Adjustment handles variances and appeals. Chapter 6's agricultural districts -- including an Agricultural-Preservation ("A-P") district intended specifically to protect highly productive soils and ongoing farming operations -- reflect a genuine, stated policy goal of preserving farmland even in a county with substantial suburban growth pressure near Davenport, Bettendorf, and Eldridge.

What makes Scott County's subdivision picture more complex than a typical rural Iowa county is simply how many incorporated cities sit inside or adjacent to it. Iowa Code lets a city establish, by its own ordinance, an extraterritorial subdivision-review area extending up to two miles beyond its limits, in which the city reviews new subdivisions in addition to the county. Scott County's own planning documents confirm this overlap has mattered in practice for parcels near both LeClaire and Bettendorf, and with Davenport, Eldridge, and Walcott also active cities in the county, a parcel anywhere near an incorporated boundary should not be assumed to be a county-only subdivision matter. Confirm directly with Planning and Development whether a specific unincorporated parcel falls within any city's declared extraterritorial review area before relying on a county-only process.

Wells and septic: a dedicated Health Department program

The Scott County Health Department administers both the Private Water Well Permit and Inspection Program and the Private Sewage Disposal System (PSDS) Permit and Enforcement Program for the county. Wells covered include not just drinking-water wells but geothermal and irrigation wells as well -- a broader scope than some counties' programs. On septic, the county's own regulatory authority covers systems serving four homes or fewer (or fewer than 15 people); anything larger falls under Iowa DNR's direct jurisdiction as a public system rather than the county's PSDS program. The department publishes separate homeowner and contractor guidance for both wells and septic systems, plus a distinct Time of Transfer program relevant to anyone buying an existing home with a private well or septic system -- confirm Time of Transfer requirements and any inspection timing directly with the department before closing on a property that relies on either.

The Mississippi River: Davenport's no-floodwall choice, and what it means countywide

The single most distinctive fact about land in Scott County is the county seat's relationship with the Mississippi River. Davenport is the largest city on the entire Mississippi River without a permanent floodwall or levee system -- a deliberate, long-standing civic choice, not an oversight or funding gap. Residents can walk to the river without climbing a concrete barrier, which the city treats as a point of civic identity ("Iowa's front porch"). The tradeoff became starkly visible in 2019: record Mississippi River flooding put the riverfront underwater for 103 days that year, and rather than build a permanent barrier afterward, the city relied on temporary HESCO barriers (metal-mesh containers filled with sand) and has since pursued voluntary buyouts of low-lying properties to create flood-absorbing green space -- a contrast with Rock Island, Illinois, directly across the river, which stayed largely dry behind a permanent floodwall built after the 1993 flood.

This matters well beyond Davenport's city limits. The Mississippi has produced major flood events repeatedly since -- most recently an April 2023 event that approached a record crest at Davenport (the third-highest ever recorded) and prompted evacuations, sandbagging, and road and park closures in the smaller riverfront communities of Buffalo, Princeton, and LeClaire, all in or adjacent to Scott County. If you are evaluating any parcel near the Mississippi River corridor -- in unincorporated areas near Buffalo, Princeton, or Riverdale, or elsewhere along the river -- do not assume flood exposure is limited to Davenport itself; get the current FIRM panel and ask Scott County Planning and Development directly whether a floodplain development permit ($30 fee) would apply to your intended use. See our dedicated flood-zones page for this county for the full detail on FIRM history, permit requirements, and the recurring-event record.

Land market: farmland pressure near a real metro, not just a small city

Scott County's farmland ranks among the most valuable in the state -- 4th-highest average dollars-per-acre for tillable farmland in Iowa, at roughly $14,846 to $15,192 per acre depending on the report year -- reflecting both high-quality soils and proximity to a genuine metro area rather than a purely agricultural land-value story. Recent listings totaled around 2,000 acres for sale countywide (roughly $64 million in aggregate value), with an average listed parcel size of about 101 acres -- smaller and more suburban-adjacent than in a purely rural Iowa county, consistent with a mix of open cropland and rural homesite tracts near Davenport and Eldridge. If you are evaluating land here as a hobby farm, rural homesite, or long-term agricultural hold, expect pricing that reflects metro-adjacent demand more than a typical rural county's farm-income-driven valuation.