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Demographics & Census guides
Housing and community data, explained How housing markets and neighborhood conditions get measured — the indexes, the record-level data behind them and who publishes what for free. How to use census and government data Finding the right official statistics, joining them to your own data by geography, and the margin-of-error traps that catch first-time users. Where to find census and demographic data Government tables, harmonized microdata, and paid neighborhood segments each answer a different demographic question. Here is which one you need.