Does Your County Change What You Pay in Florida
Your county is the unit Florida small-group rating geography is built on, so yes — it is the thing that decides which rating geography your business sits in. What it does not do is vary below that line. Florida has 67 rating areas and 67 counties, exactly one county per rating area, and Fla. Stat. § 627.6699(5)(f) forbids a carrier from applying different geographic rating factors to small employers located within the same county. Nothing in the published record says any Florida county is cheaper or dearer than any other, and nothing on this page says so either. What follows is structure and mechanism: how the map was drawn, which county counts as yours, and the handful of Florida markets where the county line does something genuinely interesting.
Florida drew one rating area per county
The federal rating-area table for Florida is about as plain as a table gets. It lists 67 rating areas against Florida’s 67 counties — one county per area, no area holding two — numbered in alphabetical order of county name. It is a strict one-to-one mapping with no exceptions anywhere in it.
The column headed 3 Digit Zip Code (if applicable)
is empty in all 67 rows. That emptiness is the most useful structural fact available about Florida rating geography, because where that column is populated a county can be split, and a business on one side of a ZIP boundary can be rated differently from a business on the other. In Florida it cannot happen. There is no sub-county rating geography to discover, no ZIP-level map to obtain, and no version of “but which part of the county am I in” that has a rating answer.
One transcription note, since it comes up whenever the federal table is reproduced: CMS renders DeSoto County as “Desoto.” Florida’s own spelling is DeSoto.
The statute says it too, not just the table
An empty spreadsheet column is a weak thing to build on by itself. Florida law supplies the rule directly. Fla. Stat. § 627.6699(5)(f): “The boundaries of geographic areas used by a small employer carrier must coincide with county lines. A carrier may not apply different geographic rating factors to the rates of small employers located within the same county.”
Both sentences do work. The first forces the map onto county lines. The second forbids variation inside a county, which is what makes the county — rather than the town, the ZIP or the street — the smallest geographic unit that exists in Florida small-group rating.
Geography is one of several characteristics the statute names. Fla. Stat. § 627.6699(6)(b)1. requires that “Small employer carriers must use a modified community rating methodology in which the premium for each small employer is determined solely on the basis of the eligible employee’s and eligible dependent’s gender, age, family composition, tobacco use, or geographic area as determined under paragraph (5)(f),” and adds that “A small employer carrier is not required to use gender as a rating factor for a nongrandfathered health plan.” The federal rule for the small group market at 45 CFR § 147.102(a)(1) permits variation only by whether the coverage is individual or family, rating area, age and tobacco use, and (a)(2) states that “The rate must not vary with respect to the particular plan or coverage involved by any other factor not described in paragraph (a)(1) of this section.” Gender does not appear in the federal list. Both texts are current and both are quoted here as they stand; an employer comparing quotes should ask the carrier which factors it actually applies. Whichever factors those are, the geographic one is fixed at the county.
Which county is yours is a federal question
Florida draws the map. Federal law decides where you are on it. 45 CFR § 147.102(a)(1)(ii)(B) sets the small-group rating area “using the group policyholder’s principal business address,” and then defines that term with some care: “the principal business address registered with the State or, if a principal business address is not registered with the State, or is registered solely for purposes of service of process and is not a substantial worksite for the policyholder’s business, the business address within the State where the greatest number of employees of such policyholder works.”
There is a further fallback for network plans. If the policyholder’s principal business address is not within the plan’s service area and the policyholder has employees who live, reside or work inside it, the address used for that network plan becomes the in-service-area business address where the greatest number of employees work at the beginning of the plan year — and if there is no such address, the rating area is the one reflecting where the greatest number of in-service-area employees live.
The practical upshot: rating geography follows the employer, not the workforce. An employer headquartered in one Florida county with staff spread across several is rated on the headquarters county, subject to those fallbacks, and an employee’s home county does not pull the group anywhere.
Keep this separate from a rule that sounds almost identical. Fla. Stat. § 627.6699(3)(v) requires a Florida small employer to have its “principal place of business in this state.” That decides whether you are a Florida small employer at all. The federal principal-business-address rule decides which rating area applies to a group already inside the market. Similar words, two different jobs.
The Keys finding runs the opposite way
Monroe County is its own rating area. It is tempting to stop there and explain it — the Keys are a chain of islands, the geography is unlike anywhere else in the state, of course the rating map treats them separately.
That explanation is wrong, and the true version is more interesting. Monroe is its own rating area because every one of the other 66 counties in Florida is also its own rating area (Florida Geographic Rating Areas). Monroe receives no special treatment whatsoever. Florida had the option to carve out its unusual geography and did not take it; it took the maximum-granularity option instead and drew one area per county, statewide. The Keys are priced as their own geography for the same reason Alachua is, which is to say for no county-specific reason at all. And this is structure only — nothing in the record says a Monroe County premium is higher, lower or the same as anywhere else.
What Monroe does have is a shape no other Florida county has. It is a county with no land neighbor. Fla. Stat. § 380.0552 ratifies the designation of the Florida Keys Area and provides that “The City of Key West Area of Critical State Concern established by chapter 28-36, Florida Administrative Code, shall be included in the hurricane evacuation study and is subject to the evacuation requirements of this subsection.”
An employer here has no adjoining county to move a worksite into without leaving the Keys altogether. The same evacuation regime constrains the housing the local workforce draws on, which feeds back into a Florida eligibility test that counts an average of employees on business days during the preceding calendar year rather than a peak-season headcount.
Jacksonville is the city whose limits are the county line
Jacksonville is the one Florida market whose municipal boundary is its county boundary. The Florida Constitution preserves Article VIII, Section 9 of the Constitution of 1885, which gave the Legislature power to establish “a Municipal corporation to be known as the City of Jacksonville, extending territorially throughout the present limits of Duval County, in the place of any or all county, district, municipal and local governments,” and the city still legislates countywide — its own municipal code governs open burning throughout Duval County.
For group health that produces an unusually clean result. Because § 627.6699(5)(f) ties rating boundaries to county lines and forbids variation inside a county, and because there is no county line anywhere inside the city, the whole of Jacksonville is one rating geography. A Jacksonville employer’s rating geography changes only when it opens a worksite outside the city, in one of the surrounding counties — each of which sits in a rating area of its own.
Miami-Dade, Broward, and the commute that crosses a rating line
Miami sits in the only Florida county whose home-rule charter the state Constitution preserves by name: Article VIII, Section 6(e) provides that “All provisions of the Metropolitan Dade County Home Rule Charter, heretofore or hereafter adopted by the electors of Dade County pursuant to Article VIII, Section 11, of the Constitution of 1885, as amended, shall be valid.” That charter can merge, consolidate and abolish governmental units whose jurisdiction lies wholly within the county. For rating, all of that structure collapses into one line: every incorporated municipality inside Miami-Dade shares a single rating geography, and crossing the county line into Broward moves an employer into a different one.
Fort Lauderdale makes the same point from the other direction. Fla. Stat. § 343.52(1) defines the South Florida Regional Transportation Authority’s “Area served” as “Miami-Dade, Broward, and Palm Beach Counties,” and § 343.54(1)(a) calls it the tri-county area. The Legislature treats that corridor as one unit. Insurance geography does not. The three counties commuters cross on one rail line are three separate rating geographies, and a group’s follows the county its worksite sits in, not the counties its employees commute from. An employer on one side of a county line and a competitor on the other are rated on different geographies while drawing from the same commuter pool.
Miami adds a prior question worth naming. Where a Miami worksite is run as the United States branch of a parent based elsewhere, Fla. Stat. § 627.6699(3)(v)’s principal-place-of-business condition decides whether the group is a Florida small employer at all — before any rating geography is reached.
Orlando is one region and several rating geographies
Orlando is governed into a five-county transportation region. Fla. Stat. § 348.753(3) seats the Mayor of Orange County and the Mayor of the City of Orlando on the Central Florida Expressway Authority, and provides that “The chairs of the boards of the county commissions of Seminole, Lake, Brevard, and Osceola Counties shall each appoint one member from his or her respective county.” The authority’s citizen members must reside in one of those same five counties.
The Legislature treats the five as one region. Small-group rating does not: § 627.6699(5)(f) requires boundaries to coincide with county lines, and each of the five sits in a rating area of its own. An Orlando employer that opens a second site anywhere else inside the authority’s own territory has put that site in a different rating geography from its first, without ever leaving the region its own mayor helps govern.
In Hillsborough, the county fixes your rate and not your network
Tampa is the only Florida market whose city and county are both defined terms in a Florida statute. In the Tampa-Hillsborough County Expressway Authority Law, Fla. Stat. § 348.51 provides that “City means the City of Tampa” and “County means the County of Hillsborough.”
That pairing is useful because Florida keys two different group-health concepts to the county and then treats them differently. Rating geography may not vary inside a county at all, under § 627.6699(5)(f). But a carrier’s established geographic area is defined at § 627.6699(3)(h) as the county or counties, or any portion of a county or counties, in which it provides or arranges care. So a Hillsborough employer can face a network that reaches only part of its own county while the geographic rating factor stays uniform across all of it. A worksite move inside the county cannot change the rate, and can still change which providers are in network. If your question is really “will moving change anything,” those are separate answers.
Tallahassee changes a count, not a rate
The last Florida market on this list changes something other than geography. The Florida Constitution makes “the City of Tallahassee, in Leon County” the seat of government, “where the offices of the governor, lieutenant governor, cabinet members and the supreme court shall be maintained and the sessions of the legislature shall be held.”
That concentration of public employment touches a participation calculation rather than a rate. Fla. Stat. § 627.6699(6) provides that in applying minimum participation requirements a small employer carrier may not consider as an eligible employee anyone — employee or dependent — who has qualifying existing coverage in an employer-based group insurance plan or an ERISA qualified self-insurance plan. Where a Leon County employee, or that employee’s spouse, already holds coverage through one of the public employers the Constitution locates in the city, that person drops out of the count the carrier tests. The effect runs in the employer’s favor: a small group’s participation requirement becomes easier to satisfy, not harder. The same paragraph sets the limit, though — a carrier may still count employees and dependents covered under another health plan sponsored by that same employer.
So: does your county change what you pay in Florida? It sets which geographic rating factor applies to your group, and it is the smallest unit on which that factor can vary. It cannot vary inside the county line, it is not chosen by where your employees live, and no source behind this page ranks one Florida county against another.
The bottom line
Your county is the unit Florida small-group rating geography is built on — 67 rating areas across 67 counties, one county each — and Fla. Stat. § 627.6699(5)(f) forbids a carrier from applying different geographic rating factors to small employers located within the same county. Which county is yours is decided federally, by the group policyholder’s principal business address. Nothing in the published record ranks one Florida county against another, and this page does not.
Frequently asked questions
How many rating areas does Florida have?
CMS’s published Florida rating-area table gives 67 rating areas across 67 Florida counties — exactly one county per area, numbered in alphabetical order of county name. The column headed 3 Digit Zip Code (if applicable) is empty in every one of the 67 rows, which is the practical point: a Florida county is not split across rating areas by ZIP, ever. Florida law says the same thing independently. Fla. Stat. § 627.6699(5)(f) provides that the boundaries of geographic areas used by a small employer carrier must coincide with county lines. The table and the statute agree, so the structure does not rest on reading an empty spreadsheet column.
If my employees live in different counties, which county am I rated in?
The rating area follows the employer, not the employees. 45 CFR § 147.102(a)(1)(ii)(B) sets the small-group rating area using the group policyholder’s principal business address, defined as the principal business address registered with the state, or — where none is registered, or where the registered address exists only for service of process and is not a substantial worksite — the business address within the state where the greatest number of employees works. There is a further fallback for network plans whose service area does not reach that address. So an employer headquartered in one Florida county with staff spread across several is rated on the headquarters county, subject to those fallbacks.
Is Key West in its own rating area because the Keys are isolated?
No, and the real answer is more useful. Monroe County is its own rating area — but so is every one of the other 66 Florida counties. Monroe receives no special treatment at all. What actually happened is that Florida took the maximum-granularity option available to it: one rating area per county, statewide, with nothing carved out for the state’s unusual geography. Saying the Keys sit in their own area is a true sentence that leaves a false impression, because it implies a distinction the table does not contain. And nothing in the published record says a Monroe County premium is higher, lower, or the same as anywhere else.
Which plan years does the CMS Florida rating-area table apply to?
This was looked for and could not be established. The CMS page carrying Florida’s rating areas states no effective date, no plan-year range and no applicable-for-plan-year language anywhere in it. A full-text search of the page for effective, for plan year, and for every four-digit year turned up nothing attached to the table. What the page does carry is a modification stamp: Page Last Modified 09/10/2024. So the honest attribution is CMS’s published Florida rating-area table, page last modified September 10, 2024 — and no plan year should be asserted for it, including by this page.
Can a carrier charge a different geographic factor to two businesses in the same county?
Not on geography. Fla. Stat. § 627.6699(5)(f) states that a carrier may not apply different geographic rating factors to the rates of small employers located within the same county. That is a flat prohibition inside the county line, and it is why moving a worksite from one side of a Florida county to the other cannot change the geographic factor. It is not a statement that two businesses in the same county will be quoted the same premium — the statute names other characteristics a carrier may rate on, and Fla. Stat. § 627.6699(6)(b)2. lets each carrier develop its own factors, subject to office review and approval.