Data Sources
NeighborScore aggregates publicly available government data. We do not collect or sell personal data. All scores are derived exclusively from the sources listed below.
Zillow Research (ZHVI/ZORI)
Used for: Median home values and rental estimates · Updated: Monthly
Zillow Home Value Index (ZHVI) tracks typical home values. Zillow Observed Rent Index (ZORI) tracks market-rate rents. Both are publicly available CSV files.
Official Source →FBI Crime Data Explorer
Used for: Crime incident counts by category · Updated: Annual (supplemented by city open data monthly)
FBI NIBRS data supplemented by city open data APIs (Socrata SODA) for Los Angeles, Chicago, and New York City.
Official Source →NCES Common Core of Data (CCD)
Used for: School enrollment, grades served, and directory information · Updated: Annual
The CCD provides universe-level directory data on all ~100,000 public elementary and secondary schools and ~18,000 districts in the United States. It covers enrollment by grade, demographics, and operational status — but does not include assessment or proficiency data.
Official Source →NCES EdFacts
Used for: Student assessment proficiency (math and reading) · Updated: Annual
EdFacts is the U.S. Department of Education system for collecting state assessment data. NeighborScore uses SY 2020-21 EdFacts proficiency rates — the school year ingested into the database. More recent vintages (through SY 2024-25) are available and will be incorporated in future updates.
Official Source →US Census Bureau ACS
Used for: Population, median income, homeownership rates · Updated: Annual (5-year estimates)
The American Community Survey (ACS) 5-Year Estimates provide reliable demographic data at the ZIP code tabulation area (ZCTA) level.
Official Source →Score Methodology
The overall NeighborScore is a weighted composite: Crime Score (53%) + School Score (47%). The Property Value score is shown as context (an affordability signal) and is not part of the overall composite. Each sub-score is normalized to a 0–100 scale relative to peer areas. Scores are updated monthly as new data becomes available.