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City water profile

Davenport water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Davenport, Iowa.

Median indexed hardness

285PPM

6 indexed ZIPs

Range 285–285 PPM

State comparison
4 PPM above
State hardness rank
#326 of 683
Matched utilities
5
Active health records
0

City summary

What the indexed records say

Davenport has 6 published ZIP profiles across Scott County. The indexed median is 285 PPM, compared with 281 PPM across Iowa.

Among the 683 Iowacities with an indexed median, Davenport ranks #326from highest to lowest. Across all 723 state ZIP profiles, available estimates run from 182to 834 PPM.

The 285–285 PPM range shows how much the available ZIP estimates vary within the city label. At least one estimate is marked low confidence, so observation distance and date deserve extra attention.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard6 ZIPs

6 of 6 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
23.4 miles
Profiles with evidence
6/6

Confidence labels

High: 0Moderate: 5Low: 1

Observation window: Feb 16, 2016 to Jun 3, 2026.

ZIP directory

Water reports in Davenport

Open a ZIP for site-level provenance and measurements.

ZIP code

52801

Very Hard

285 PPM

Nearest site
21.7 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

52802

Very Hard

285 PPM

Nearest site
24.8 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

52803

Very Hard

285 PPM

Nearest site
20.9 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

52804

Very Hard

285 PPM

Nearest site
27.2 mi
Confidence
Low

View full ZIP evidence →

ZIP code

52806

Very Hard

285 PPM

Nearest site
23.4 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

52807

Very Hard

285 PPM

Nearest site
18 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Iowa-American Wtr Co-Davenport

PWSID IA8222001

Surface water
System population served
147,720
Last reported
Jun 17, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Ponderosa Park Mhp

PWSID IA8222612

Surface water
System population served
320
Last reported
Jun 17, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Mt Joy Mobile Home Park

PWSID IA8222603

Groundwater
System population served
140
Last reported
Jun 17, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Knollcrest Hoa

PWSID IA8222301

Groundwater
System population served
42
Last reported
Jun 17, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Fashionable Meadows

PWSID IA8222601

Groundwater
System population served
40
Last reported
Jun 17, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Compliance history

What EPA records show

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
TTHMIA8222612Aug 1, 2025Archived
Total Haloacetic Acids (HAA5)IA8222612Aug 1, 2025Archived
Consumer Confidence RuleIA8222601Jul 1, 2025Unaddressed
Revised Total Coliform RuleIA8222603Sep 1, 2023Resolved

Practical next steps

Move from index to evidence

  1. 1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
  2. 2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
  3. 3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Davenport

Is the water hard?

The indexed city median is 285 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.