Medicare in St. Tammany Parish
The parish seat is Covington, and the parish includes the cities of Mandeville and Slidell and the towns of Abita Springs and Madisonville. The U.S. Census Bureau's 2023 population estimates count 52,409 residents age 65 and older in St. Tammany Parish (source: U.S. Census Bureau, 2023 population estimates).
Health systems serving the parish include St. Tammany Health System, with locations in Covington and Mandeville, and Slidell Memorial Hospital in Slidell, which partners with Ochsner Health. Medicare Advantage and Part D plan availability, and the provider networks behind them, are set county by county, which in Louisiana means parish by parish. That is why we check the plans offered where you live and confirm your doctors before you choose.
The numbers behind Medicare in St. Tammany Parish
| St. Tammany Parish | Louisiana | |
|---|---|---|
| Residents age 65 and older | 52,409 | 793,655 statewide |
| Share of residents age 65+ | 19.0% | 17.4% statewide |
| People with Medicare | 63,387 | 977,541 statewide |
| Enrolled in Medicare Advantage | 39,176 | 561,903 statewide |
| Medicare Advantage share | 61.8% | 57.5% statewide |
Data: U.S. Census Bureau (2023 population estimates); CMS, September 2026. Medicare Advantage share is enrollees divided by people with Medicare.
With roughly 52,409 residents age 65 and older, St. Tammany Parish is 4th among 64 Louisiana parishes for older residents. That group is 19.0% of its population, compared with 17.4% across Louisiana. The 18,534 residents now between 60 and 64 will become Medicare-eligible soon, and our turning 65 guide walks through it. By age, the 65-and-older group splits 60% ages 65 to 74, 31% ages 75 to 84 and 8% age 85 and up (Census 2023). Medicare Advantage enrollment in St. Tammany Parish is 61.8% of people with Medicare, close to the Louisiana average of 57.5%. Averages cannot choose a plan for you. Medicare Advantage and Original Medicare with a Medigap plan each suit different people, depending on doctors, medicines and how you prefer to handle costs, and we compare both at your ZIP code.
Who has Medicare in St. Tammany Parish
St. Tammany Parish is a metro county; the U.S. Department of Agriculture describes it as: counties in metro areas of 250,000 to 1 million population. Metro counties usually have more hospitals and more insurers competing for Medicare members, so there can be more plans to compare.
CMS counts 61,207 Medicare beneficiaries in St. Tammany Parish (2023). Their average age is 72, about the same as the Louisiana average of 72. About 13% are “dual eligible,” meaning they have both Medicare and Medicaid, lower than the state figure of 20%.
Among people in Original Medicare in St. Tammany Parish, CMS reported about 624 emergency room visits and 230 inpatient hospital stays per 1,000 beneficiaries in 2023, which is close to the state average for emergency visits (648) and close to it for hospital stays (237). About 11% received home health care. These figures describe how people use care under Original Medicare; they do not show what any plan covers or costs.
Sources: CMS Medicare Geographic Variation, 2023; USDA Rural-Urban Continuum Codes, 2023.
Where people live in St. Tammany Parish
People in St. Tammany Parish live in communities such as Slidell (28,510), Mandeville (12,999), Covington (11,618), Abita Springs (2,731), Pearl River (2,648), Madisonville (871) (2023 population estimates, counting only the part of each community that lies inside the county).
We look up plans by ZIP code. In St. Tammany Parish, that means areas such as 70420, 70431, 70433, 70435, 70437, 70445, 70447, 70448, 70452, 70457, 70458, 70460, 70461, 70463 and 2 more, based on Census ZIP Code Tabulation Areas that lie mostly in the county.
Questions about your Medicare options?
Reach out to us: fill out our short form or call (571) 354-0146, and a licensed agent will compare the plans available to you, check your doctors and drugs, and stay with you each year at renewal. For general Medicare information, the federal helpline is 1-800-MEDICARE (1-800-633-4227).
Medicare resources from official sources
- Medicare Plan Finder on Medicare.gov, searchable by ZIP code.
- HealthCare.gov if you are not yet on Medicare.
- Medicare Care Compare for hospitals and doctors.
- Social Security: Medicare to enroll or check status.
- Louisiana Department of Insurance: Louisiana’s insurance regulator, including agent license lookup.
Coverage we offer St. Tammany Parish residents
As an independent agency we are not tied to one insurer, so for St. Tammany Parish residents we can compare annuities, Medicare Advantage, Medicare Supplement (Medigap), Part D drug plans, ACA health insurance, ICHRA, group health insurance, life insurance and final expense insurance.
Let's check your St. Tammany Parish options together
We will confirm your doctors and prescriptions before you enroll, by phone or video call.
Get my free comparisonMedicare guides for St. Tammany Parish residents
- Why a Medicare Advantage plan drops a doctor or drug
- Medicare Parts A, B, C and D explained
- How to read your Medicare Annual Notice of Change
- Does Medicare cover dental, vision and hearing?
St. Tammany Parish compared with similar Louisiana parishes
| Parish | Residents 65+ | Medicare Advantage share | Dual eligible share | Area type |
|---|---|---|---|---|
| Caddo Parish | 44,291 | 54.6% | 19% | Metro |
| Orleans Parish | 66,128 | 68.0% | 26% | Metro |
| Lafayette Parish | 38,539 | 41.6% | 15% | Metro |
| Calcasieu Parish | 34,222 | 45.2% | 16% | Metro |
| East Baton Rouge Parish | 70,903 | 65.3% | 18% | Metro |
| Ouachita Parish | 25,711 | 49.5% | 19% | Metro |
See every Louisiana parish in our Louisiana directory or go to our Louisiana Medicare hub.