Decennial Census Surname Files (2010, 2000)
The Census Bureau's Census surnames product is a data release based on names recorded in the decennial census. The product contains rank and frequency data on surnames reported 100 or more times in the decennial census, along with Hispanic origin and race category percentages. The latter are suppressed where necessary for confidentiality. The data focus on summarized aggregates of counts and characteristics associated with surnames, and the data do not in any way identify any specific individuals.
This dataset is aggregated at the national level only.
All queries to the Census Data API now require an API key. Please cut and paste the API Calls, Example Calls, Variables, Examples, and Supported Geography below into your web browser and replace YOUR_KEY_GOES_HERE with your personal API Key.
If you do not have an API Key, request one here.
2010
Surnames 2010
- API Call: api.census.gov/data/2010/surname?key=YOUR_KEY_GOES_HERE
- Examples and Supported Geographies: api.census.gov/data/2010/surname.html?key=YOUR_KEY_GOES_HERE
- Variables: api.census.gov/data/2010/surname/variables.html?key=YOUR_KEY_GOES_HERE
- Example call: Top 100 surnames (all backgrounds), ranked
api.census.gov/data/2010/surname?get=NAME,COUNT&RANK=1:100&key=YOUR_KEY_GOES_HERE - Technical Documentation [PDF <1.0 MB]
Related Information
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Developers' ForumNeed help? Check out our Developer Forum to submit questions, share your apps, and provide feedback.
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FTP ServerTo download full datasets, visit our FTP Server.
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Frequently Occurring Surnames from the 2010 CensusTabulations of all surnames occurring 100 or more times in the 2010 Census returns. No specific individual information is provided.