County · Illinois
St. Clair County
Population 250,708 · Census Bureau Vintage-2025 estimate
Last scored Jul 13, 2026 · Data may be stale
Composite · JPAS tier readings
Power
Power reads 71 of 100, sourced evidence. Power measures grid capacity, interconnection-queue depth, generation mix, retail price and substation density. Interconnection-queue depth is an estimated roll-up (EST); queue vintage PJM 2026-04-28, CAISO 2025-02-12.
Politics
Regulatory reads 59 of 100, sourced evidence. Regulatory measures air-quality designation under the Clean Air Act and commercial permitting activity. Regulatory is evidenced by air-quality designation and permitting activity; a county absent from EPA's nonattainment list reads as attainment.
Community reads 57 of 100, sourced evidence. Community measures enacted moratoria, pending legislation and farmland share as signals of local consent.
Incentives reads 100 of 100, estimated evidence. Incentives measures state program baselines and disclosed awards for data-center and industrial projects.
Resources
Water reads 82 of 100, sourced evidence. Water measures drinking-water system health, basin stress, streamflow and groundwater conditions.
Real estate / site reads 61 of 100, sourced evidence. Real estate / site measures developable land share, convertible sites, substation hosting and permit velocity.
Environmental reads 27 of 100, sourced evidence. Environmental measures FEMA hazard risk across riverine, coastal, wind, wildfire and related perils.
Labor reads 57 of 100, sourced evidence. Labor measures electrician depth, wages, unemployment and prevailing-wage floors in the county labor market.
Connectivity
Connectivity is not yet activated as a brief section; the Network tier reading is shown.
Network reads 88 of 100, sourced evidence. Network measures broadband availability, fiber and middle-mile programs, and exchange-point proximity.
Density · JDS
Density · Minimal · 16 of 100
Data-center density is absent in this county (JDS Minimal, 16 of 100). County grain: computed from facilities, construction and permitted projects resolved to this county.
Trajectory · JTS
- ModeledJTS-01 Trajectory rate of change — falling — Modeled — covers 2026 Posture-series attributes were computed over an eight-week window that spans Faraday methodology changes; they partly measure recompute churn, not jurisdiction behaviour.
- SpeculativeJTS-02 Inflection points — falling — Speculative — covers 2026 Posture-series attributes were computed over an eight-week window that spans Faraday methodology changes; they partly measure recompute churn, not jurisdiction behaviour.
- ModeledJTS-03 Trajectory volatility — falling — Modeled — covers 2026 Posture-series attributes were computed over an eight-week window that spans Faraday methodology changes; they partly measure recompute churn, not jurisdiction behaviour.
- SpeculativeJTS-04 Momentum — rising — Speculative — covers 2026 Posture-series attributes were computed over an eight-week window that spans Faraday methodology changes; they partly measure recompute churn, not jurisdiction behaviour.
- SpeculativeJTS-05 Forecast confidence decay — falling — Speculative — covers 2026 Posture-series attributes were computed over an eight-week window that spans Faraday methodology changes; they partly measure recompute churn, not jurisdiction behaviour.
- ModeledJTS-06 Substation & transmission build trajectory — rising — Modeled — covers 2026
- ModeledJTS-07 Utility capital investment trend — rising — Modeled — covers 2020–2025
Windows held: 2026 · 2020–2025. Direction and evidence label only; horizons extend only as data lands.
Water & Cooling Readiness
Water posture inferred from statewide data; no jurisdiction-level water measurement is available.
Gauge data courtesy of the U.S. Geological Survey
JPS Score Breakdown · Jurisdiction Posture Score
Per-dimension posture values are not yet published for this jurisdiction.
Infrastructure Map
Faraday's Read
St. Clair County currently sits in a Mixed posture tier with a composite score of 45, reflecting a moderate overall readiness profile with no strong tilt in either direction. The underlying attribute evidence is rated Good in quality and Medium in completeness, with well-populated, sourced-confidence data across environmental, water, power, network, and labor categories, suggesting a reasonably solid factual base in those areas. Incentive and regulatory attributes, by contrast, are thin, with only a single estimated-confidence attribute in each category, so any read on tax incentives or regulatory posture should be treated as unverified rather than established. There are no recorded data center facilities in the jurisdiction and no active signals, and the forecast direction is listed as stable but with unscored confidence, meaning near-term trajectory is essentially unknown. Overall, the data paints St. Clair County as a jurisdiction with decent infrastructure-side documentation but a data-thin picture on the policy and development-track fronts.
Gilbert Faraday · Jul 16, 2026
Recent Signals
No signal events in the past 30 days for this jurisdiction.