Mills County, Iowa — public water systems

At a glance

17 active public water systems are filed under Mills County, Iowa in EPA's SDWIS records, together reporting 8,756 people served. The largest is Glenwood Municipal Utilities, which reports serving 5,449 people. 7 are community water systems serving people where they live; the other 10 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO, refreshed quarterly.

Active systems

Population served

8.8K

Community systems

Groundwater share

100%

How does Mills County compare with other Iowa counties?

Mills County has the 37th-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 8,756 people served in total, the 71st-largest county figure in the state and 0.3% of the statewide total. The average system here reports serving 515 people, well 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 Mills County's drinking water come from?

By primary water source, Mills County's active systems draw on groundwater (17, 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, Glenwood Municipal Utilities, draws primarily on groundwater.

What kinds of water systems operate in Mills County?

Mills County's active systems break down as 7 community systems (41%), 2 non-transient non-community systems (12%) and 8 transient non-community systems (47%). 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 non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. 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 (59%), local government (35%) and public/private partnership (5.9%).

Water systems in Mills County

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Active public water systems in Mills County, Iowa
#	Water system	County	Population served	Type	Source
1	Glenwood Municipal Utilities	Mills	5,449	Community	Groundwater
2	Malvern Water Supply	Mills	1,046	Community	Groundwater
3	Emerson Water Department	Mills	412	Community	Groundwater
4	Switch	Mills	285	Non-transient non-community	Groundwater
5	St. John Luth. Church (Mineola)	Mills	250	Transient non-community	Groundwater
6	Silver City Water Supply	Mills	245	Community	Groundwater
7	Romantix Inc.	Mills	204	Transient non-community	Groundwater
8	Hastings Water Supply	Mills	152	Community	Groundwater
9	Henderson Water Department	Mills	144	Community	Groundwater
10	Pony Creek #1 Hoa	Mills	125	Community	Groundwater
11	Bella Terre Vineyard & Reception Hall	Mills	120	Transient non-community	Groundwater
12	Tobey Jacks Mineola Steak House	Mills	102	Transient non-community	Groundwater
13	E-Stop	Mills	63	Transient non-community	Groundwater
14	The Playhouse Theatre	Mills	55	Transient non-community	Groundwater
15	Vander Haag'S Inc.	Mills	47	Non-transient non-community	Groundwater
16	Warehouse Specialist LLC	Mills	30	Transient non-community	Groundwater
17	Glenwood Community Church	Mills	27	Transient non-community	Groundwater

Mills County water systems: frequently asked questions

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

EPA's SDWIS records file 17 active public water systems under Mills County, Iowa: 7 community systems (41%), 2 non-transient non-community systems (12%) and 8 transient non-community systems (47%).

Who supplies drinking water in Mills County, IA?

The largest community water systems filed under Mills County are Glenwood Municipal Utilities (5,449 people served), Malvern Water Supply (1,046 people served) and Emerson Water Department (412 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 Mills County's drinking water come from groundwater or surface water?

Of the 17 active public water systems in Mills County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Glenwood Municipal Utilities, uses groundwater.

Where can I find a water quality report for Mills 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 Mills 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 Mills 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 Mills County, Iowa”, https://aquacensus.com/water-systems/iowa/mills (data as of October 1, 2026).