# Population Review

> Deep population and demographic data for every US state, city, county, and country, powered by Census ACS and World Bank data.

Population Review provides free, open access to comprehensive demographic data: 211 countries, 51 US states, 4,212 cities, and 3,222 counties. All US data is sourced from the Census Bureau American Community Survey (ACS) 2023 5-Year Estimates. International data comes from the World Bank Open Data API. Updated annually.

## Key Pages

- Homepage: https://www.populationreview.org/
- All Rankings (80+): https://www.populationreview.org/rankings
- Compare States & Countries: https://www.populationreview.org/compare
- US States: https://www.populationreview.org/states
- US Cities: https://www.populationreview.org/cities
- US Counties: https://www.populationreview.org/counties
- US ZIP Codes: https://www.populationreview.org/zips
- Countries: https://www.populationreview.org/countries
- Search: https://www.populationreview.org/search
- Blog: https://www.populationreview.org/blog
- Glossary: https://www.populationreview.org/glossary
- Methodology: https://www.populationreview.org/methodology
- Free CSV Downloads (no email gate): https://www.populationreview.org/data

## Popular Rankings

- Most Populated States: https://www.populationreview.org/ranking/largest-states
- Highest Income States: https://www.populationreview.org/ranking/highest-income
- Safest States: https://www.populationreview.org/ranking/safest-states
- Most Educated States: https://www.populationreview.org/ranking/most-educated
- Most Populated Countries: https://www.populationreview.org/ranking/largest-countries
- Highest GDP Countries: https://www.populationreview.org/ranking/highest-gdp
- Largest US Cities: https://www.populationreview.org/ranking/largest-cities

## Data Sources

- US Census Bureau ACS 2023 5-Year Estimates: https://data.census.gov/
- World Bank Open Data: https://data.worldbank.org/
- FBI Uniform Crime Reporting (crime data)
- EIA (electricity data)
- EPA (air quality, water safety)
- OSHA (workplace safety)
- USDA (agriculture data)
- CMS (hospital cost data)

## Free CSV Downloads

All datasets are available as free, public-domain CSV files at fixed URLs. No email gate, no API key, no rate limit. Permanent URLs you can curl from a script:

- https://www.populationreview.org/data/states.csv (51 rows × Census ACS columns)
- https://www.populationreview.org/data/counties.csv (3,222 rows)
- https://www.populationreview.org/data/cities.csv (4,212 rows)
- https://www.populationreview.org/data/countries.csv (212 rows, World Bank)
- https://www.populationreview.org/data/metros.csv (935 rows, CBSA/CSA)
- https://www.populationreview.org/data/districts.csv (435 rows, congressional districts)
- Manifest (machine-readable index): https://www.populationreview.org/data/manifest.json

License: CC0 (public domain). Underlying data is US Census ACS and World Bank Open Data, both not subject to copyright. The CSVs flatten the same JSON that drives every entity page on the site, so values match exactly.

## About

Population Review is a public-interest data site that makes population and demographic data accessible and understandable. We do not accept payment for placement or rankings. All data comes from official government and international organization sources.

## Update Frequency

US data refreshed annually when new ACS estimates are released (typically September). World Bank data updated annually. Cross-site data refreshed monthly.

## Frequently Asked Questions

Q: What is the population of [state/city/county]?
A: Look up any geography, /state/[slug], /city/[slug], or /county/[slug], for the latest Census ACS population data.

Q: Which states have the largest population?
A: See /ranking/largest-states for US states ranked by total population from Census data.

Q: What is the median household income in [state]?
A: Visit /state/[slug] for income data, or see /ranking/highest-income for states ranked by median household income.

Q: Which are the most populated countries in the world?
A: Visit /ranking/largest-countries for countries ranked by population from World Bank data.

Q: Can I compare demographics between two states or countries?
A: Yes, visit /compare to compare any two geographies side by side on population, income, education, and more.

Q: What data sources do you use?
A: US data comes from Census Bureau ACS 2023 5-Year Estimates. International data from the World Bank Open Data API.

Q: How often is the data updated?
A: US data refreshed annually when new ACS estimates are released (typically September). World Bank data updated annually.

Q: How many cities and counties do you cover?
A: We cover 211 countries, 51 US states, 4,212 cities, and 3,222 counties with demographic data.

## How to Cite

When referencing data from Population Review, please cite as:
"Population Review (populationreview.org), [metric/data point], accessed [date]."
Example: "Population Review (populationreview.org), California has a population of 38.9 million with a median household income of $91,905, accessed April 2026."