How does Florida City's water compare to the national average?

The USA national average is 151 mg/L. Florida City (≈ 120–179 mg/L) is 1 mg/L softer than average.

Florida City Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

groundwater

pH Level

7.3

neutral = 7.0

Lead

0.007 mg/L

✓ Below action level

TDS

339 mg/L

Est. Daily Cost

$0.40

energy & soap waste

Source: See methodology section below · Updated 2026

hard~120–179 mg/LHard · est.

0–60

mg/L

Soft

61–120

mg/L

Moderately Hard

121–180

mg/L

Hard

180+

mg/L

Very Hard

Appliance Damage Report

In Florida City, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Florida City	Soft Water City	Efficiency Loss
Kettle	6.8 yrs	8.5 yrs	-20%
Washing Machine	9.6 yrs	12 yrs	-20%
Water Heater	12 yrs	15 yrs	-20%

Regional Water Comparison

How Florida City compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Florida City, Florida	≈ 120–179 mg/L	52.8 ppt	🟠 Hard	groundwater
Homestead, Florida	≈ 120–179 mg/L	122.6 ppt	🟠 Hard	groundwater
Leisure City, Florida	≈ 120–179 mg/L	6 ppt	🟠 Hard	groundwater
Naranja, Florida	≈ 120–179 mg/L	9.8 ppt	🟠 Hard	groundwater
Princeton, Florida	≈ 180+ mg/L	5.4 ppt	🔴 Very Hard	groundwater

National Benchmark

How Florida City compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Florida City	≈ 120–179 mg/L	🟠 Moderate
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

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What Makes Florida City's Water Unique?

Local geology and source profile

Source: GroundwaterTDS: 339 mg/LpH: 7.3

Florida City Utilities supplies approximately 13,000 residents in Florida City, Miami-Dade County, Florida, drawing exclusively from groundwater wells tapping the Floridan aquifer. Water is treated at local facilities before distribution, with disinfection and basic conditioning being key steps. Residents needing emergency assistance can reach out 24/7 at (305) 247-8220. The groundwater's watershed is part of the larger South Florida hydrologic system, influenced by the Biscayne Aquifer and rainfall recharge.

The water originates from the Floridan aquifer system, a vast karst limestone formation prevalent across Florida. This aquifer is characterized by Eocene to Oligocene limestone, including the Ocala Limestone and Avon Park Formation. As groundwater moves through these soluble carbonate rocks, it dissolves minerals like calcium and magnesium, naturally resulting in a hard water supply characteristic of South Florida's geology. The slow flow through fractured carbonates shapes the water's mineral-rich profile.

Homeowners will likely notice scale buildup on fixtures, which can reduce the efficiency of appliances like dishwashers and water heaters. You might also see spotting on glassware and experience drier skin or hair due to soap scum. To manage this, consider periodic vinegar soaks for appliances and using rinse agents. For a more comprehensive solution that extends appliance life and improves cleaning, a whole-house water softener is recommended. The utility's treatment includes chlorination, with pH typically between 7.0-8.0, and corrosion control is monitored.

Geology & Source: Floridan aquifer system; Eocene to Oligocene limestone formations like Ocala Limestone and Avon Park Formation, rich in calcium carbonate, produce hard water.

Other Florida Water Reports

Homestead

≈ 120–179 mg/L

🟠 Hard

Leisure City

≈ 120–179 mg/L

🟠 Hard

Naranja

≈ 120–179 mg/L

🟠 Hard

Princeton

≈ 180+ mg/L

🔴 Very Hard

Report an Issue

Notice an error or missing data? Help us keep this page accurate. If you spot incorrect water hardness, outdated utility info, or missing details, please let us know.

All reports are reviewed by our team. Thank you for supporting data quality!

Frequently Asked Questions

Is Florida City's water safe to drink?

Yes. Florida City's water meets all federal safety standards. The hardness is ≈ 120–179 mg/L (Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.

Do I need a water softener in Florida City?

At ≈ 120–179 mg/L (Hard), Florida City's water will cause significant limescale on kettles, washing machines, and water heaters. A water softener or descaler is strongly recommended to extend appliance lifespan and reduce energy bills by up to 20%.

How does Florida City compare to the USA average?

The USA national average is 151 mg/L. Florida City (≈ 120–179 mg/L) is 1 mg/L below the national average. The softest major city is Scarsdale at just 0.02 mg/L.

Data Sources & Methodology

Water quality data for Florida City is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.

Estimated

Water Hardness

Modelled estimate based on state-level USGS geological survey data for this region. No direct USGS Water Quality Portal measurement was matched to this city — the value reflects a statistical range calibrated to the state's dominant rock types and typical source water characteristics.

Estimated

Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.

Estimated

TDS — Total Dissolved Solids

Estimated using a derived ratio from water hardness and regional conductance profiles. TDS in natural water correlates strongly with total mineral content including hardness ions.

Measured

PFAS — Perfluoroalkyl and Polyfluoroalkyl Substances

EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) — sum of PFAS compounds detected at the public water system serving this city. A value of 0 indicates the system was sampled with no detection above reporting limits.

Modelled

Lead

Modelled estimate based on the EPA Lead and Copper Rule 90th-percentile tap-sample methodology. No publicly available per-city lead dataset with sufficient national coverage exists. Values are a conservative baseline derived from city population tier and infrastructure age — all estimates are maintained below the EPA action level of 0.015 mg/L.

Calculated

Appliance Lifespan

Calculated from water hardness using a linear degradation model. Baseline lifespans represent soft-water performance (kettle: 8.5 yrs, washing machine: 12.0 yrs, water heater: 15.0 yrs). Hard water mineral scale progressively reduces operational life in direct proportion to hardness concentration.