2024 Marketplace Open Enrollment Period Public Use Files

The 2024 Open Enrollment Period (OEP) for the Health Insurance Marketplaces ran between November 1, 2023 and January 16, 2024 for the 32 states that used HealthCare.gov (HC.gov).

For the 19 State-based Marketplaces (SBMs) using their own platforms, the reporting period reflects plan selection and Marketplace activity from the beginning of the OEP on November 1, 2023 (except Idaho, which has a reporting period beginning on October 15, 2023) to the end of each SBM’s respective OEP and any run-out period that captures remaining in-line applications and post-OE cleanup activities. Any renewals processed before November 1, 2023 are also included. Data for each SBM are provided through the following dates: California (1/31/2024), Colorado (1/17/2024), Connecticut (1/15/2024), District of Columbia (2/2/2024), Idaho (12/15/2023), Kentucky (1/17/2024), Maine (1/16/2024), Maryland (1/15/2024), Massachusetts (1/28/2024), Minnesota (1/15/2024), Nevada (1/20/2024), New Jersey (1/31/2024), New Mexico (1/16/2024), New York (2/3/2024), Pennsylvania (1/19/2024), Rhode Island (1/31/2024), Vermont 1/19/2024), and Washington (1/15/2024). 

The PUFs contain data on individual Marketplace activity, including health insurance applications, Qualified Health Plan (QHP) selections, and stand-alone dental plan (SADP) selections. The PUFs also include demographic characteristics of consumers who made a plan selection.

CMS has prepared a number of Public Use Files (PUFs) summarizing plan selection activity during the applicable OEPs.

• 2024 OEP State-Level Public Use File: The state-level PUF includes total health plan selections in all 50 states plus the District of Columbia. The PUF provides state-level data on metrics such as average monthly premium, financial assistance, age, gender, metal level, self-reported race and ethnicity, rural location, household income as a percent of the federal poverty level (FPL), and plan switching behavior among consumers with a plan selection. In addition, the state-level PUF includes data on dental plan selections and Basic Health Plan (BHP) enrollments. Certain data elements are only available for the 32 HC.gov states in 2024.
• 2024 OEP State, Metal Level, and Enrollment Status Public Use File: The state, metal level, and enrollment status PUF includes data with stratifications by state, metal level and enrollment status. It includes total health plan selections in all 50 states plus the District of Columbia and state, metal level, and enrollment status-level data on enrollment status, average monthly premium, financial assistance, age, gender, self-reported race and ethnicity, rural location, metal level, and household income as a percent of the FPL. Certain data elements are only available for the 32 HC.gov states in 2024.
• 2024 OEP County-Level Public Use File: The county-level PUF includes total health plan selections by county, as well as average monthly premium, financial assistance, age, gender, metal level, self-reported race and ethnicity, household income as a percent of the FPL, and plan switching behavior. In addition, the county-level PUF includes data on dental plan selections. This PUF only includes data for consumers with a plan selection in the 32 states that used the HC.gov platform in 2024.
• 2024 OEP ZIP Code-Level Public Use File: The ZIP code-level PUF includes total health plan selections, the count of consumers with APTC, and average APTC among consumers with APTC by zip code. This PUF only includes data for consumers with a plan selection in the 32 states that used the HC.gov platform in 2024.
• 2024 OEP Snapshot Public Use File: The Snapshot PUF includes data that CMS released during the 2024 OEP. It includes total health plan selections, including a breakdown of new and returning consumers. State-level health plan selection counts are also included.
• 2014-2024 OEP Plan Design Public Use File: The Plan Design PUF includes data on availability and plan selections of Health Savings Account (HSA)-eligible plans and average and median deductibles of plans selected during the 2014-2024 OEPs. It also includes number and percent of plan selections by metal level in standardized plan options (SPOs) in 2024, stratified by state and enrollment status.

The data are available in downloadable CSV and/or Excel files below. For information on the methodology and the metric definitions used in the PUFs please refer to the accompanying documents.

The related Health Insurance Marketplaces 2024 Open Enrollment Report summarizes health plan selections through the individual Marketplaces during the 2024 OEP, including demographic breakouts, premium and financial assistance trends, and estimated savings due to the American Rescue Plan (ARP) and Inflation Reduction Act (IRA).