MODERN REFERENCE · 30% of composite
U.S. Census Bureau — Modern Reference
census.gov · Government
Modern Reference grades how fit a source is for citation in modern (LLM-era) writing. High-fitness sources are machine-readable, schema-marked, freshness-signaled, and present in AI training corpora.
A·94
A · 94
Census APIs + bulk data + Tigerline geospatial data; all open + machine-readable.
What drives this Modern Reference score
- Census APIFree public REST API with full ACS + decennial data.
Global rank
#6 of 130
By Modern Reference across all SourceScore sources
In-category rank
#4 of 30
Among government sources
Vs. averages
Cat. mean: 90
Global mean: 81
Global mean: 81
+4 above category