{"openapi":"3.1.1","info":{"title":"Deaths, births, migration and older residents by county (Census population estimates), 2020 to 2025: data API","version":"v1","summary":"Static, read-only JSON and CSV files. No key, no sign-up. CORS open.","description":"Deaths, births, migration and older residents by county (Census population estimates), 2020 to 2025: The Census Bureau's population estimates for every U.S. county, every state and DC and the nation: deaths, births, international migration and domestic migration in the year to July 1, 2025 and summed over the five years since July 1, 2020, with the Bureau's own rates per 1,000 residents; residents on July 1, 2025 and on the April 1, 2020 estimates base; and residents aged 65 and over, 75 and over and 85 and over, with their share of all residents and the growth of the 65-and-over population since 2020. Counts only, from the Bureau's public Vintage 2025 files.\n\nProbative is a marketing firm, not a law firm; not legal advice. 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