Water hardness in Florida varies across the state, with a range from moderately hard to very hard in certain locations. Much of Florida’s water hardness originates from the limestone geology prevalent throughout the state, which contains ample amounts of calcium and magnesium that dissolve into the groundwater.
While some parts of Florida, such as regions in the north, may have moderately hard water, other areas are known for their significantly harder water. For example, water drawn from the Floridan aquifer can be characterized as hard to very hard due to the high mineral content of the aquifer’s composition. However, the water hardness can fluctuate from city to city within Florida and is also subject to change over time as a result of alterations in water treatment practices and the adoption of different water sources.
The presence of hard water in Florida can have various implications, such as impacting the taste of the water and reducing the efficiency of soaps and detergents. Residents and industries in areas with hard water might face particular challenges, including scale buildup in plumbing systems and appliances, which necessitates additional maintenance and can increase costs.
The water hardness levels in the state of Florida also show considerable variation across different cities, with measurements given in parts per million (ppm) and grains per gallon (gpg). Jacksonville, for example, has a relatively high hardness level at 259.7ppm, 15.3gpg. On the other hand, Cape Coral shows moderately hard water with a level of 102.7ppm, 6.0gpg. Tampa and St. Petersburg have hardness levels of 186.0ppm, 10.9gpg, and 166.0ppm, 9.7gpg, respectively. However, many cities such as Miami, Orlando, Hialeah, and Fort Lauderdale, among others, did not have available data on water hardness. The lowest water hardness level provided in the table is for Ocoee, at 94.1ppm and 5.5gpg.
City | Hardness ppm (mg/L) | Hardness gpg | Information Source | Notes |
Jacksonville | 259.7 | 15.3 | Link | Took average of all listed hardness measures |
Miami | n/a | n/a | Link | Biscayne Aquifer — Report mentions it’s treated for hardness but doesn’t quantify |
Tampa | 186.0 | 10.9 | Link | |
Orlando | n/a | n/a | Link | Lower Floridian Aquafer |
St. Petersburg | 166.0 | 9.7 | Link | |
Hialeah | n/a | n/a | Link | |
Port St. Lucie | n/a | n/a | Link | |
Cape Coral | 102.7 | 6.0 | Link | |
Tallahassee | 155.0 | 9.0 | Link | |
Fort Lauderdale | n/a | n/a | Link | |
Pembroke Pines | n/a | n/a | Link | |
Hollywood | n/a | n/a | Link | Biscayne Aquifer |
Gainesville | 140.0 | 8.2 | Link | |
Miramar | n/a | n/a | Link | Biscayne and Floridian Aquifer |
Coral Springs | n/a | n/a | Link | Mentions they add hardness but don’t provide quantity |
Palm Bay | n/a | n/a | Link | Report mentions hardness but doesn’t quantify |
West Palm Beach | n/a | n/a | Link | Grassy waters preserve |
Clearwater | n/a | n/a | Link | Mentions they remove hardness, but doesn’t quantify |
Lakeland | n/a | n/a | Link | Floridian Aquifer — mentions they soften the water until it is stable on the slightly scale forming side of Langlier’s Saturation Index, but doesn’t provide enough info for me to work backwards into the ppm number. |
Pompano Beach | n/a | n/a | Link | |
Miami Gardens | n/a | n/a | Link | Biscayne Aquifer — report says they soften the water, but doesn’t quantify |
Davie | n/a | n/a | Link | |
Sunrise | n/a | n/a | Link | Checked all 3 reports on page, none list hardness |
Boca Raton | n/a | n/a | Link | Mentions they soften the water, but doesn’t quantify |
Deltona | n/a | n/a | Link | Floridian Aquifer |
Palm Coast | 100.0 | 5.8 | Link | |
Plantation | n/a | n/a | Link | Biscayne Aquifer — report says they soften the water, but doesn’t quantify |
Fort Myers | n/a | n/a | Link | |
Deerfield Beach | n/a | n/a | Link | Biscayne Aquifer — report says they soften the water, but doesn’t quantify |
Melbourne | n/a | n/a | Link | Lake Washington and Floridian Aquafer |
Largo | 202.0 | 11.8 | Link | |
Miami Beach | n/a | n/a | Link | M-D Water Biscayne Aquifer — report says they soften the water, but doesn’t quantify |
Homestead | n/a | n/a | Link | |
Boynton Beach | n/a | n/a | Link | |
North Port | n/a | n/a | Link | Myakkahatchee Creek |
Kissimmee | n/a | n/a | Link | Kissimmee gets from the Central water system, per map |
Doral | n/a | n/a | Link | M-D Water Biscayne Aquifer — report says they soften the water, but doesn’t quantify |
Daytona Beach | n/a | n/a | Link | |
Lauderhill | n/a | n/a | Link | |
Tamarac | n/a | n/a | Link | Checked both East and West reports. Mentions they remove some hardness but don’t quantify’ |
Weston | n/a | n/a | Link | Purchases from Sunrise |
Delray Beach | n/a | n/a | Link | |
Ocala | n/a | n/a | Link | |
Port Orange | n/a | n/a | Link | |
St. Cloud | n/a | n/a | Link | Floridian Aquifer |
Wellington | n/a | n/a | Link | Mentions they treat with lime, but don’t provide values for hardness |
Jupiter | n/a | n/a | Link | Floridian Aquifer |
Sanford | n/a | n/a | Link | Floridian Aquifer |
Palm Beach Gardens | n/a | n/a | Link | |
North Miami | n/a | n/a | Link | Biscayne Aquifer — report says they soften the water, but doesn’t quantify |
Margate | n/a | n/a | Link | Biscayne Aquifer — report says they soften the water, but doesn’t quantify |
Coconut Creek | n/a | n/a | Link | Biscayne Aquifer — report says they soften the water, but doesn’t quantify |
Bradenton | n/a | n/a | Link | |
Apopka | 140.0 | 8.2 | Link | |
Bonita Springs | n/a | n/a | Link | Mentions they treat to reduce hardness but don’t provide a numeric value |
Sarasota | n/a | n/a | Link | Floridian Aquifer |
Pensacola | n/a | n/a | Link | |
Pinellas Park | 202.0 | 11.8 | Link | Floridian Aquifer — doesn’t say they treat for hardness in report. |
Winter Haven | n/a | n/a | Link | Floridian Aquifer |
Titusville | n/a | n/a | Link | Floridian Aquifer |
Coral Gables | n/a | n/a | Link | M-D Water Biscayne Aquifer — report says they soften the water, but doesn’t quantify |
Fort Pierce | n/a | n/a | Link | Floridian Aquifer — report says they soften water, but don’t provide a numeric value for it |
Ocoee | 94.1 | 5.5 | Link | |
Winter Garden | n/a | n/a | Link | Floridian Aquifer |
Altamonte Springs | n/a | n/a | Link | |
Clermont | n/a | n/a | Link | Floridian Aquifer |
Cutler Bay | n/a | n/a | Link | Part of Miami-Dade system, which softens the water but doesn’t quantify it |
North Lauderdale | n/a | n/a | Link | Biscayne Aquifer — report says they soften the water, but doesn’t quantify |
Greenacres | n/a | n/a | Link | Biscayne Aquifer — report says they soften the water, but doesn’t quantify |
Oakland Park | n/a | n/a | Link | Biscayne Aquifer — report says they soften the water, but doesn’t quantify |
Ormond Beach | n/a | n/a | Link | Mentions they treat for hardness but doesn’t provide numeric value |
North Miami Beach | n/a | n/a | Link | Biscayne and Floridian Aquifer |
Lake Worth Beach | n/a | n/a | Link | Biscayne Aquifer — report says they soften the water, but doesn’t quantify |
Hallandale Beach | n/a | n/a | Link | |
Plant City | n/a | n/a | Link | Floridian Aquifer |
Oviedo | n/a | n/a | Link | Floridian Aquifer |
Aventura | n/a | n/a | Link | M-D Water Biscayne Aquifer — report says they soften the water, but doesn’t quantify |
Royal Palm Beach | n/a | n/a | Link | Biscayne Aquifer — report says they soften the water, but doesn’t quantify |
DeLand | n/a | n/a | Link | Floridian Aquifer |
Winter Springs | n/a | n/a | Link | Floridian Aquifer |
Riviera Beach | n/a | n/a | Link | |
Estero | n/a | n/a | Link | Lee County — report says they soften the water but don’t quantify |
Dunedin | n/a | n/a | Link | Floridian Aquifer |
Lauderdale Lakes | n/a | n/a | Link | Biscayne Aquifer — report says they remove “most” of the hardness, but don’t quantify |
Parkland | n/a | n/a | Link | |
Panama City | n/a | n/a | Link | |
Cooper City | n/a | n/a | Link | Biscayne Aquifer — report says they soften the water, but doesn’t quantify |
Dania Beach | n/a | n/a | Link | Biscayne Aquifer |
New Smyrna Beach | n/a | n/a | Link | Floridian Aquifer — report says they soften the water but doesn’t quantify |
Miami Lakes | n/a | n/a | Link | M-D Water Biscayne Aquifer — report says they soften the water, but doesn’t quantify |
Winter Park | n/a | n/a | Link | Lower Floridian Aquifer |
Casselberry | n/a | n/a | Link | |
Haines City | n/a | n/a | Link | |
Rockledge | n/a | n/a | Link | All three reports on page mention they soften the water, but don’t quantify. |
West Melbourne | n/a | n/a | Link | |
Crestview | n/a | n/a | Link | Floridian Aquafer |
Leesburg | 134.0 | 7.5 | Link | |
Temple Terrace | n/a | n/a | Link | No online CCR (has email address you can request one from), but mentions on page they soften the water as part of treatment process |
Palm Springs | n/a | n/a | Link | |
Key West | n/a | n/a | Link | Biscayne Aquifer — report says they soften the water, but doesn’t quantify |
ppm = Parts Per Million
mg/L = Milligrams Per Liter
gpg = Grains Per Gallon
Hard water can cause issues such as mineral buildup in plumbing and appliances, reduce the efficacy of soaps and detergents, and affect the taste of the water. A tried and true solution is the use of a water softener. A water softener, like the ones from DROP, could be a worthwhile investment.
These devices work by replacing the calcium and magnesium ions that cause hardness with sodium ions, resulting in softer water. With innovative features, easy installation, and efficient operation, DROP smart water softeners provide a solution to hard water issues, extending the lifespan of appliances, improving water taste, enhancing soap effectiveness, reducing scale build-up, and increasing the overall water efficiency in your home.