ACA Health Insurance in Columbia County, Florida. About 18,346 Medicare beneficiaries live here, with roughly 53 percent in Medicare Advantage plans. Top carriers include Humana and UnitedHealthcare. For free help comparing plans, call Giron Agency, a licensed Florida agency, or visit gironagency.com.
Columbia County ACA Health Insurance — quick answer
Columbia County, FL has about 74,467 residents per the 2024 ACS 5-year estimates (19% age 65 or older). The leading insurance carriers serving the county for aca health insurance include Humana, UnitedHealthcare, Preferred Care Partners. We compare options at no cost to you.
Prefer to listen?
Free audio version, generated on demand by Google Cloud Text-to-Speech.
The Columbia County aca health insurance market
Columbia County has about 74,467 residents, 19% of them 65 or older. For aca health insurance, the carriers with the strongest local presence include Humana, UnitedHealthcare, Preferred Care Partners — but the right fit depends on your household size, income, and which doctors you want to keep. We compare Humana against every other carrier serving Columbia County at no cost, because the plan with the lowest sticker premium is rarely the one with the lowest total annual cost once subsidies, deductibles, and your prescriptions are factored in. Medicare Advantage enrollment figures reflect the latest CMS data (May 2026).
Columbia County at a glance
Population (2024 ACS)
74,467
Medicare beneficiaries
18,346
MA penetration
53%
Age 65 or older
19%
What makes Columbia County different: Lake City, the Columbia County seat, is known as the 'Gateway to Florida' at the I-10/I-75 crossroads; HCA Florida Lake City Hospital, a 141-bed acute-care facility, is the regional medical hub serving Columbia, Hamilton and Suwannee counties, and the Lake City VA Medical Center has provided veteran care for over a century.
Top carriers in Columbia County
Humana
4.5-star CMS rating
UnitedHealthcare
4.5-star CMS rating
Preferred Care Partners (UnitedHealth)
4-star CMS rating
Aetna
4-star CMS rating
Source: CMS Monthly MA Enrollment by State/County/Contract (latest Q1 2024). Enrollment figures refresh monthly at data.cms.gov.
Before you enroll: verify your hospital + doctor in Columbia County
Each ACA Health Insurance plan builds its own provider network — a hospital that's in-network
on one plan may be out-of-network on another. Columbia County has 2
major hospital systems. Before you enroll, check that your preferred hospital and physicians
participate in the specific plan you're considering.
Major hospitals to verify
▸HCA Florida Lake City Hospital
▸Lake City VA Medical Center (NF/SG VHS)
Call each hospital's billing office directly — or use the carrier's
network tool on the right to search by hospital name.
Major hospitals: HCA Florida Lake City Hospital, Lake City VA Medical Center (NF/SG VHS)
Frequently Asked Questions
How many people live in Columbia County?▾
Columbia County has about 74,467 residents per the 2024 ACS 5-year estimates; 19% are age 65 or older.
Who are the top insurers in Columbia County?▾
The largest carriers in Columbia County are Humana, UnitedHealthcare, Preferred Care Partners (UnitedHealth), Aetna. We work with all of them and a few smaller carriers that often have better rates for specific situations.
What state resources are available in Columbia County?▾
Florida SHINE — Columbia County (1-800-963-5337) provides free unbiased Medicare counseling. Major hospitals in the county include HCA Florida Lake City Hospital, Lake City VA Medical Center (NF/SG VHS).
How does HCA Florida Lake City Hospital affect my ACA plan options?▾
HCA Florida Lake City Hospital is the regional medical hub, so it’s important to choose a plan that covers your specific needs. Our local agent can help you find the right coverage.
When should I enroll in an ACA plan for Columbia County residents?▾
For open enrollment, sign up from Oct 15-Dec 7 each year. Special enrollment periods apply if you have a life event like moving to Lake City or turning 65.
Hey 👋 — I'm trained on every page of gironagency.com. Ask me anything
about Medicare, ACA, or life insurance and I'll cite the exact source. For specific quotes or applications, I'll send you to Matt.
Try one of these
Educational only — not medical or legal advice. We do not offer every plan in your area. Call 1-800-MEDICARE for all options.