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Floyd County, Iowa — public water systems

At a glance

18 active public water systems are filed under Floyd County, Iowa in EPA's SDWIS records, together reporting 12,330 people served. The largest is Charles City Water Supply, which reports serving 7,446 people. 7 are community water systems serving people where they live; the other 11 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.

Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.

Active systems

18

Population served

12.3K

Community systems

7

Groundwater share

100%

How does Floyd County compare with other Iowa counties?

Floyd County has the 35th-most active public water systems among the 114 counties listed for active Iowa systems in EPA records; among the 96 with 3 or more systems, the median has 14. Its systems report 12,330 people served in total, the 54th-largest county figure in the state and 0.4% of the statewide total. The average system here reports serving 685 people, about 60% below the Iowa average of 1,718. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.

Where does Floyd County's drinking water come from?

By primary water source, Floyd County's active systems draw on groundwater (18, 100%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 92% and 7.8% across Iowa. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Charles City Water Supply, draws primarily on groundwater.

What kinds of water systems operate in Floyd County?

Floyd County's active systems break down as 7 community systems (39%) and 11 transient non-community systems (61%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as private (50%) and local government (50%).

Water systems in Floyd County

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Active public water systems in Floyd County, Iowa
#Water systemCountyPopulation servedTypeSource
1Charles City Water SupplyFloyd7,446CommunityGroundwater
2Nora Springs Water SupplyFloyd1,369CommunityGroundwater
3218 Fuel ExpressFloyd914Transient non-communityGroundwater
4Rockford Water SupplyFloyd762CommunityGroundwater
5Rudd WaterworksFloyd358CommunityGroundwater
6Cedar Ridge Golf CourseFloyd316Transient non-communityGroundwater
7Floyd Muni Water SupplyFloyd313CommunityGroundwater
8Marble Rock Water SupplyFloyd272CommunityGroundwater
9Tosanak Recreation AreaFloyd151Transient non-communityGroundwater
10Living Hope Mennonite ChurchFloyd125Transient non-communityGroundwater
11Colwell, City ofFloyd55CommunityGroundwater
12Freeze Frame BowlFloyd55Transient non-communityGroundwater
13Cedar Springs CampFloyd39Transient non-communityGroundwater
14Swartzrock Implement Co Inc.Floyd37Transient non-communityGroundwater
15Cedar River Harley DavidsonFloyd33Transient non-communityGroundwater
16Fossil and Prairie AreaFloyd30Transient non-communityGroundwater
17Ackley Creek ParkFloyd30Transient non-communityGroundwater
18St Marys ChurchFloyd25Transient non-communityGroundwater

Floyd County water systems: frequently asked questions

How many public water systems are in Floyd County, Iowa?

EPA's SDWIS records file 18 active public water systems under Floyd County, Iowa: 7 community systems (39%) and 11 transient non-community systems (61%).

Who supplies drinking water in Floyd County, IA?

The largest community water systems filed under Floyd County are Charles City Water Supply (7,446 people served), Nora Springs Water Supply (1,369 people served) and Rockford Water Supply (762 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.

Does Floyd County's drinking water come from groundwater or surface water?

Of the 18 active public water systems in Floyd County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Charles City Water Supply, uses groundwater.

Where can I find a water quality report for Floyd County?

Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 7 community systems are filed under Floyd County, so the report to look for is the one from the system that supplies your address.

How can I check violations for a water system in Floyd County?

Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.

More Iowa water systems

About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Public water systems in Floyd County, Iowa”, https://aquacensus.com/water-systems/iowa/floyd (data as of October 1, 2026).