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Population Review

Our Methodology

Deep population and demographic data for every US state, city, county, and ZIP code — powered by Census ACS data

Data Sources

[Describe primary data sources — e.g., BLS, Census, USDA, SEC, FDA, etc. Include specifics: number of records, collection methodology, time period covered.]

How We Calculate Scores

[Explain the scoring/grading system. List each factor and its weight. Example: "Median wage vs. metro household income — 30% weight."]

  • [Factor 1] — [X]% weight. [Explanation of what this measures and why it matters.]
  • [Factor 2] — [X]% weight. [Explanation.]
  • [Factor 3] — [X]% weight. [Explanation.]

Data Collection Process

[How raw data is downloaded, filtered, and processed. Mention any transformations, normalization, or adjustments applied.]

Update Frequency

[How often the underlying data is refreshed. E.g., "annually when BLS publishes new OEWS data" or "quarterly from SEC EDGAR filings."]

Known Limitations

  • [Limitation 1 — what the data does not capture]
  • [Limitation 2 — populations or scenarios not covered]
  • [Limitation 3 — any methodological caveats]

How to Cite This Data

If you use data from Popreview, please cite:

Popreview. "[Page Title]." populationreview.org, 2026. Accessed [date].

[Note about the public domain status of underlying data, if applicable.]