Water Hardness in Florida Cities

Water Hardness in Florida Cities

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
Top 100 Florida cities by population and their reported water hardness
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.

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