Original data research from the PlainHealthPlan editorial process. Every page derives at least one statistic from our own database, cites primary sources inline, and documents its methodology and limits.
What this research covers
PlainHealthPlan research ranks ACA Marketplace premiums and issuer concentration across 2,055 counties in 30 states (183 issuers, 97,082 plans), answering one marketplace question per study from the live CMS PUF mirror.
Studies below answer one ranking or trend question each from the live CMS Marketplace PUF mirror; they are descriptive catalog statistics, not insurance advice or enrollment guidance.
Explore the 10 counties like West Virginia and Wyoming with average premiums over $843, revealing 2,055 county trends from CMS data for 2026, including issuer counts up to 183 and plan variations across metal levels.
Track year-over-year changes in silver premiums for counties like Aleutians East and West Virginia, with averages rising 5.44 percent annually from CMS data, covering 41,424 trend entries and 183 issuers.
Analyze how top issuers like Premera Blue Cross dominate in FFE states, covering 183 issuers and 41,424 entries, with market shares exceeding 60 percent in counties such as Aleutians East and West Virginia.
Download marketplace catalog CSV - catalog extract behind these research pages.