St. Charles County MO 6-month data center moratorium (eff. July 13, 2026)
St. Charles County, MO 6-Month Moratorium on Large Data Centers (>100k sq ft or >5MW)
St. Charles County, MO · St. Charles County, MO unanimous vote, July 13, 2026, 6-month moratorium on data centers >100,000 sq ft or >5MW
- Status
- In effect
- Expires
- January 13, 2027
- Applies to
- Developers of data centers >100,000 sq ft or >5MW in St. Charles County, MO
- Enforced by
- St. Charles County, MO Community Development; County Council
St. Charles County, Missouri (St. Louis suburbs) unanimously imposed a six-month moratorium on large data center projects on July 13, 2026. The pause covers projects bigger than 100,000 square feet or drawing more than 5 megawatts of power.
Who is protected: St. Charles County, MO residents
Legal detail
St. Charles County (MO) unanimous action July 13, 2026: 6-month moratorium on data center projects exceeding EITHER 100,000 sq ft OR 5MW (through approximately Jan. 13, 2027). Dual size/power threshold captures both large-footprint and high-density facilities. Distinct from the City of Wentzville's own 6-month application moratorium within the county (separate entry).
Key facts
| Jurisdiction | St. Charles County, MO |
|---|---|
| Level | County |
| Strength | Moderate |
| Enacted | July 13, 2026 |
| Citation | St. Charles County, MO unanimous vote, July 13, 2026, 6-month moratorium on data centers >100,000 sq ft or >5MW |
| Penalties | Permit/application denial during moratorium |
| Topics | data-center siting and energy |
| News report | St. Charles County officials approve half-year ban on data center projects — St. Louis Public Radio |
Related data-center siting and energy rules elsewhere
- Superior WI Data Center Moratorium (1-year) · In effect
- Dane County WI Hyperscale Data Center Moratorium · In effect
- Madison WI Data Center Moratorium (1-year) · In effect
- Manitowoc County WI Data Center Moratorium · In effect
- WA SB 5982 (Data Center / Clean Energy) · In effect
- Dayton OH data center moratorium (180-day, Apr 2026) · In effect
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