Saint Charles County
Saint Charles County, Missouri: solar permitting grade C (score 48/100, Elevated Risk). Score has been stable over the last 12 months. Primary-source ordinance and board-vote data on SitePath.
Public summary
| Grade | C · Elevated Risk · Score 48/100 |
| Population | 402,022 |
| Solar ordinance | No specific solar ordinance recorded |
| Active moratorium | None on record |
| Regulatory trajectory | Improving (ordinance direction easing) |
| 12-month score movement | Stable |
| Last verified | 2026-05-02 |
Developer outlook
Saint Charles County carries elevated permitting risk. Developers should budget additional time for ordinance review, public hearing preparation, and community engagement.
Local intel
On file: named opposition groups
Cities, towns & townships
Local governments in Saint Charles County. An incorporated city, town or village can adopt its own zoning, separate from the county’s.
- Cottleville city
- Dardenne Prairie city
- Flint Hill city
- Foristell city
- Lake St. Louis city
- New Melle city
- O'Fallon city
- Portage Des Sioux city
- St. Charles city
- St. Paul city
- St. Peters city
- Weldon Spring city
- Wentzville city
- West Alton city
- Augusta town
- Weldon Spring Heights town
- Josephville village
Source: U.S. Census Bureau, incorporated places and county subdivisions with an active government.
Nearby counties
- Saint Louis County · ≈16 miB31—
- Lincoln County · ≈24 miC42—
- Saint Louis City · ≈25 miD56—
- Warren County · ≈26 miB39—
- Calhoun County, IL · ≈26 miB41—
- Jersey County, IL · ≈27 miB39—
Compare these counties side-by-side →
Saint Charles County ranks #66 of 115 ranked Missouri counties (1 = lowest permitting risk). Lowest-risk in Missouri: Saint Louis County (B · 31), Clay County (B · 32), Randolph County (B · 32). See all Missouri 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.