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 ### Spatial Concentration
 - **State level**: Top 5 states (VA, TX, CA, OR, OH) hold 51% of all US data centers
   - Virginia alone: 20.6% (378 of 1,833 facilities)
-- **Tract level**: Top 1% of data center-hosting census tracts hold 14.6% of all facilities
-  - Only 0.86% of data center-state residents live in a hosting tract
-  - Per-capita burden is **115× higher** in host tracts vs. state average
+- **Tract level**: Top 1% of data center-hosting census tracts hold 14.5% of all facilities (7 tracts)
+  - 2.9% of data center-state residents live in a hosting tract
+  - Per-capita burden is **~35× higher** in host tracts vs. state average
+  - Top host tract: Loudoun County CT 6110.20 — 69 DCs, MHI $141K, 64% BA+
 - **Watershed level**: Half of all US data centers sit in just 15 of 2,139 HUC8 watersheds
   - Single watershed (Middle Potomac-Catoctin / Loudoun County): 12.8% of US facilities
 
@@ -38,14 +39,16 @@ This repository implements a PostGIS-based analytical framework that integrates
 Compared to the US average, data center host communities are:
 - **Wealthier**: Median household income $103,623 (vs. $78,538, +32%)
 - **More educated**: 49% bachelor's+ (vs. 35%, +14 pp)
-- **More diverse**: 50% non-Hispanic white (vs. 58%), driven by high Asian share (13% vs. 6%)
+- **More diverse**: 51% non-Hispanic white (vs. 58%), driven by high Asian share (13% vs. 6%)
 - **Better connected**: 94.9% broadband (vs. 89%)
+- **Politically blue**: 59.3% Biden 2020 — affluent tech-corridor suburbs, not resentment communities
+- **Income gradient by urbanicity**: Metro avg MHI $119K → Rural/Small Town $83K → Micropolitan $67K
 
 ### Infrastructure Insights
-- **89% of data centers are in metropolitan tracts** (vs. 80% of all US tracts) - only 1.11× over-index
-- **Non-metro data centers (11%)** are dominated by hyperscalers:
-  - AWS (67), Meta (22), Microsoft (10), Google (4) = 55% of non-metro facilities
-  - 66% are in Oregon + Washington (Columbia River hydro corridor)
+- **~90% of data centers are in metropolitan tracts** (RUCA 2020); ~10% non-metro
+- **Non-metro data centers (~10%)** are dominated by hyperscalers:
+  - AWS, Meta, Microsoft, Google = 55.8% of non-metro facilities
+  - 66.4% are in Oregon + Washington (45.3% OR + 21.1% WA; Columbia River hydro corridor)
 - **Grid saturation**: 4 states have >2/3 of generation within 50 km of a data center:
   - New Jersey: 83%, Nevada: 75%, Tennessee: 70%, Oregon: 68%
 - **Hyperscaler energy strategies** (non-metro sites):