Data Source: Municipal meeting transcripts from 84 cities across the United States, collected via public records and council streaming services. Only cities with 10+ mentions of “data center” in their transcripts were included.
Sentiment Analysis: Transcript segments were analyzed using natural language processing to classify mentions as positive, negative, or neutral. The sentiment score (0-100) reflects the overall tone of discussion.
Abundance Index Calculation: The index combines sentiment score (60% weight) with positive mention ratio (40% weight). This weighting emphasizes overall tone while still accounting for the balance of favorable vs. unfavorable mentions. Alternative weightings would shift rankings modestly but preserve the general pattern.
Classification: Cities with Abundance Index ≥55 are classified as YIMBY; ≤45 as NIMBY; between 45-55 as Neutral. These thresholds are analytical conventions, not bright lines—a city at 54 is functionally similar to one at 56.
Sample Size Variation: Mention counts vary significantly by city (from 10 to 300+). Cities with fewer mentions should be interpreted with more caution, as a single heated meeting can skew their scores.
Selection Bias: These 84 cities self-selected into our dataset by having active data center discussions. They are not a random sample of American cities and likely skew toward areas with existing tech infrastructure or active development proposals.
Limitations: Sentiment analysis has inherent limitations in capturing sarcasm, irony, or complex positions. This analysis measures how cities discuss data centers, which may differ from how they ultimately vote. Population data from U.S. Census Bureau estimates.
Date Range: Transcripts analyzed span January 2023 through January 2025, with the majority from 2024-2025.