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Solar Permitting Intelligence

Iowa

99 Counties 57 Low/Moderate Risk 15 High/Very High Risk 2 Active Moratoria
State policy: RPS on file · no % target

Grade distribution

A 2B 55C 27D 13F 2

Overview

Iowa has 99 counties tracked in the SitePath solar permitting index. 57 (58%) are graded A or B, meaning they present low to moderate permitting risk for utility-scale solar projects. 27 counties sit in the C range — moderate risk with meaningful process uncertainty. 15 counties are rated D or F (15%) — high to very high risk, often due to active moratoria, restrictive setback ordinances, or strong local opposition.

The most favorable jurisdictions in Iowa include Scott County (grade A), Polk County (grade A), Des Moines County (grade B). The most challenging include Linn County (grade D), Clarke County (grade F), Cerro Gordo County (grade F).

Iowa's RPS framework (RPS on file · no % target) has a mixed effect on local solar permitting: state incentives can accelerate projects, but county boards often act independently of state policy direction. 2 counties — Clarke County, Cerro Gordo County — currently have active utility-scale solar moratoria. These represent hard barriers where project approvals are unlikely until the moratorium is lifted by county vote.

All counties — sorted by risk score (best first)

County Grade Score Trajectory Moratorium
Scott CountyA26
Polk CountyA29
Des Moines CountyB31
Grundy CountyB31
Wapello CountyB31
Jackson CountyB32
Bremer CountyB32
Benton CountyB32
Buchanan CountyB32
Humboldt CountyB32
Butler CountyB32
Sac CountyB32
Carroll CountyB32
Emmet CountyB32
Palo Alto CountyB32
Winneshiek CountyB33
Story CountyB33
Clayton CountyB33
Mitchell CountyB34
Washington CountyB35
Warren CountyB36
Audubon CountyB36
Van Buren CountyB36
Marion CountyB36
Plymouth CountyB37
Cedar CountyB37
Jasper CountyB37
Chickasaw CountyB37
Delaware CountyB37
Jones CountyB37
Lyon CountyB37
Hamilton CountyB37
Jefferson CountyB37
Mahaska CountyB37
Clay CountyB37
Crawford CountyB37
Fayette CountyB37
Guthrie CountyB37
Harrison CountyB37
Keokuk CountyB37
Allamakee CountyB37
O'Brien CountyB37
Osceola CountyB37
Hancock CountyB37
Wright CountyB37
Dallas CountyB38
Poweshiek CountyB38
Boone CountyB39
Worth CountyB39
Howard CountyB40
Adair CountyB40
Marshall CountyB40
Buena Vista CountyB40
Franklin CountyB40
Clinton CountyB40
Black Hawk CountyB41
Lee CountyB42
Fremont CountyC43
Cass CountyC43
Appanoose CountyC43
Monona CountyC43
Montgomery CountyC43
Calhoun CountyC43
Ida CountyC43
Page CountyC43
Pottawattamie CountyC43
Hardin CountyC44
Monroe CountyC44
Wayne CountyC44
Webster CountyC44
Shelby CountyC44
Greene CountyC44
Louisa CountyC45
Pocahontas CountyC45
Davis CountyC45
Lucas CountyC45
Mills CountyC46
Winnebago CountyC48
Cherokee CountyC48
Union CountyC48
Decatur CountyC49
Taylor CountyC49
Muscatine CountyC51
Henry CountyC52
Ringgold CountyD52
Johnson CountyD53
Madison CountyD55
Iowa CountyD55
Sioux CountyD55
Floyd CountyD56
Dickinson CountyD56
Kossuth CountyD56
Woodbury CountyD58
Dubuque CountyD58
Tama CountyD59
Adams CountyD60
Linn CountyD65
Clarke CountyF100Active
Cerro Gordo CountyF100Active

See the full interactive map

County grades, scores, and ordinance data are also available on the interactive county map with filtering by grade, state, and risk factor.

Open the county map →

About SitePath scoring

Every U.S. county is scored 0–100 on solar permitting risk (lower is friendlier to development). The grade is a weighted composite of compliance stringency, market saturation, regulatory trajectory, and data uncertainty. Every figure traces back to a primary government document. Read the full methodology →

SitePath Intelligence is a research platform. Data verified as of 2026-05-02. Scores update on a quarterly review cycle.