Scientific Telephone Samples (STS) STS Resources Click here for RDD Sampling: Highly representative sample of the population.
Click here for Listed Sampling: Target specific sub-groups
Click here for Business Sampling: Target large or small businesses.

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County/FIPS Codes

Each county in the United States has been assigned a five digit FIPS code. FIPS is an acronym standing for Federal Information Processing Standards.

Each FIPS code is comprised of two parts:

  • A two digit number referring the State. (see State code list)
  • A three digit number denoting the county within the appropriate State.

For example, 06037 is the FIPS code for Los Angeles County, California. "06" refers to the State of California, while "037" refers to Los Angeles County.

There are currently 3,141 Counties in the United States, each with its own five digit FIPS code.

View or download a complete list of all USA county FIPS codes, organized by State.

If you need a hard copy, they can be obtained by calling STS at (800)944-4-STS.


How to Order a Sample
Placing your RDD, listed or business sample order is as easy as a phone call or an email to STS.

Phone: (800) 944-4-STS
or, request a quote here.

An STS representative will be happy to assist you.

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