Warren County
Warren County, Illinois: solar permitting grade B (score 37/100, Moderate Risk). Score has been stable over the last 12 months. Primary-source ordinance and board-vote data on SitePath.
Public summary
| Grade | B · Moderate Risk · Score 37/100 |
| Population | 16,911 |
| Solar ordinance | Active solar ordinance on the books |
| Active moratorium | None on record |
| Regulatory trajectory | Stable (no material ordinance movement) |
| 12-month score movement | Stable |
| Last verified | 2026-05-02 |
Developer outlook
Warren County presents moderate permitting risk; conditions are generally workable for utility-scale solar with standard due-diligence preparation. Illinois's state RPS policy provides a supportive macro backdrop for renewables, even where individual county ordinances are restrictive. Market saturation is elevated in this area — expect competition for prime land parcels and interconnection capacity.
Local intel
No energy-related meetings, PSC dockets, or named opposition tracked for this county yet. See indexed calendar →
Nearby counties where SitePath is tracking energy activity: Des Moines County (≈30 mi) · Fulton County (≈34 mi) · Hancock County (≈42 mi)
Cities, towns & townships
Local governments in Warren County. An incorporated city, town or village can adopt its own zoning, separate from the county’s.
- Monmouth city
- Alexis villagepartly in this county
- Avon villagepartly in this county
- Kirkwood village
- Little York village
- Roseville village
- Berwick township
- Coldbrook township
- Ellison township
- Floyd township
- Greenbush township
- Hale township
- Kelly township
- Lenox township
- Monmouth township
- Point Pleasant township
- Roseville township
- Spring Grove township
- Sumner township
- Swan township
- Tompkins township
Source: U.S. Census Bureau, incorporated places and county subdivisions with an active government.
Nearby counties
- Henderson County · ≈17 miA30—
- Knox County · ≈22 miC45—
- Mercer County · ≈25 miB41—
- McDonough County · ≈27 miB39—
- Des Moines County, IA · ≈30 miB40—
- Fulton County · ≈34 miC48—
Compare these counties side-by-side →
Warren County ranks #16 of 102 ranked Illinois counties (1 = lowest permitting risk). Lowest-risk in Illinois: DeWitt County (A · 26), Bureau County (A · 26), Edgar County (A · 28). See all Illinois county grades →
Want the full record?
Setback distances, board vote histories, source documents, and ordinance amendments are available in the full county profile. The map is free; a walkthrough shows you the underlying record.
About this score
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 →
Related reading
SitePath Intelligence is a research platform. Data verified as of 2026-05-02. Scores update on a quarterly review cycle.