I built a Streamlit app that lets users explore changes in the U.S. native‑born and foreign‑born populations using the American Community Survey (ACS) 1‑year estimates from 2005–2024. You can view trends for the nation, all states, and all counties and places (i.e., cities) with populations of 65,000 or more.
ACS data for 2025 is expected to be published in September 2026. Once that release happens, the app will be updated so people can easily compare how different geographies have changed over time.
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Blog post with screenshots and details: A Web App for Exploring Foreign‑Born Population Trends