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2025 BRFSS Survey Data and Documentation
The 2025 BRFSS data continue to reflect the changes initially made in 2011 for weighting methodology (raking) and adding cellphone-only respondents. The aggregate BRFSS combined landline and cellphone dataset is built from the landline and cellphone data submitted for 2025 and includes data from 47 states, the District of Columbia, Guam, and Puerto Rico. During 2025, California, Mississippi, Nevada, and the US Virgin Islands were unable to collect enough data to meet the minimum requirements to be included in this public dataset.
2025 BRFSS Overview CDC [PDF – 220 KB]
Provides information on the background, design, data collection and processing, and the statistical and analytical issues for the combined landline and cell phone data set.
2025 BRFSS Codebook CDC [ZIP – 95 KB]
Codebook for the file showing variable name, location, and frequency of values for all reporting areas combined for the combined landline and cell phone data set.
Child Weighting Calculated Variables in the 2025 Data File [PDF – 300 KB]
2025 Summary Data Quality Report with Response Rates CDC [PDF – 543 KB]
Complex Sampling Weights and Preparing Module Data for Analysis CDC [PDF – 394 KB]
An explanation of the need to use complex sampling weights and instructions for preparing a module data set for analysis.
BRFSS Combined Landline and Cell Phone Weighted Response Rates by State, 2025 CDC [PDF – 169 KB]
Comparability of Data CDC [PDF – 256 KB]
Comparability of data across reporting areas for the combined landline and cell phone data set. The BRFSS 2025 data is not directly comparable to years of BRFSS data before 2011 because of the changes in weighting methodology and the addition of the cell phone sampling frame.
BRFSS Modules Used by State
BRFSS Modules Used by Category
Arranged by state or by category for the combined landline and cell phone data set.
Summary – Matrix of Calculated Variables (CV) in the 2025 Data File
There are 356,158 records for 2025. More information on participation is available in the states conducting surveillance, by year table. The data files are provided in ASCII and SAS Transport formats.
2025 BRFSS Data (ASCII) [ZIP – 41 MB]
August, 2026
This file for the combined landline and cell phone data set is in ASCII format. It has a fixed record length of 2066 positions.
2025 BRFSS Data (SAS Transport Format) [ZIP – 64.3 MB]
August, 2026
This file for the combined landline and cell phone data set was exported from SAS V9.4 in the XPT transport format. This file contains 284 variables. This format can be imported into SPSS or STATA. Please note: some of the variable labels get truncated in the process of converting to the XPT format so they may be slightly different from what is on the SASOUT25.SAS program.
Variable Layout
Format information on variable name by column position.
The Combined Landline and Cellular Telephone Survey Multiple Questionnaire Version Data–includes Optional Modules
The combined landline and cellular telephone multiple version questionnaire data sets contain the data from the states which conducted more than one version of their landline and cellular telephone survey questionnaires and used optional modules in 2025.
The following files are included for use with SAS software developed by SAS Institute, Inc. The SAS files are programs that can be read using any text editor. Save SAS files as plain text files.
Format25.sas [ZIP – 20 KB]
SAS for Windows program used to generate the 2020 format library.
Formats25 [ZIP – 36 KB] Format library used with the 2025 BRFSS SAS Data File in 64 bit SAS.
SASOUT25_LLCP.SAS [ZIP – 9 KB]
SAS for Windows program to convert the ASCII file into a SAS dataset.
TRANSPRT.SAS [SAS – 3 KB]
SAS for Windows program to convert the XPT (SAS Transport) file into a SAS dataset.
Formas24.sas CDC [ZIP – 2 KB]
SAS for Windows format assignment statements.
