Humboldt County, Iowa — public water systems
At a glance
13 active public water systems are filed under Humboldt County, Iowa in EPA's SDWIS records, together reporting 7,145 people served. The largest is Humboldt Municipal Water Dept, which reports serving 4,792 people. 8 are community water systems serving people where they live; the other 5 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
13
Population served
7.1K
Community systems
8
Groundwater share
100%
How does Humboldt County compare with other Iowa counties?
Humboldt County has the 52nd-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 7,145 people served in total, the 84th-largest county figure in the state and 0.2% of the statewide total. The average system here reports serving 550 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 Humboldt County's drinking water come from?
By primary water source, Humboldt County's active systems draw on groundwater (12, 92%) and groundwater under influence of surface water (1, 7.7%). 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, Humboldt Municipal Water Dept, draws primarily on groundwater under influence of surface water.
What kinds of water systems operate in Humboldt County?
Humboldt County's active systems break down as 8 community systems (62%), 1 non-transient non-community systems (7.7%) and 4 transient non-community systems (31%). 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 local government (85%) and private (15%).
Water systems in Humboldt County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Humboldt Municipal Water Dept | Humboldt | 4,792 | Community | Groundwater under influence of surface water |
| 2 | Dakota City Water Supply | Humboldt | 769 | Community | Groundwater |
| 3 | Livermore Water Supply | Humboldt | 383 | Community | Groundwater |
| 4 | Bode Municipal Water Supply | Humboldt | 304 | Community | Groundwater |
| 5 | Renwick Munic Water Supply | Humboldt | 234 | Community | Groundwater |
| 6 | Thor Water Works | Humboldt | 181 | Community | Groundwater |
| 7 | Rutland Water Supply | Humboldt | 116 | Community | Groundwater |
| 8 | Precision Pulley and Idler-Humboldt | Humboldt | 100 | Non-transient non-community | Groundwater |
| 9 | Humboldt Country Club | Humboldt | 82 | Transient non-community | Groundwater |
| 10 | Frank Gotch State Park-Humboldt Ccb | Humboldt | 65 | Transient non-community | Groundwater |
| 11 | Joe Sheldon Park-Humboldt Ccb | Humboldt | 52 | Transient non-community | Groundwater |
| 12 | Ottosen Water Supply | Humboldt | 41 | Community | Groundwater |
| 13 | Hardy Water Supply | Humboldt | 26 | Transient non-community | Groundwater |
Humboldt County water systems: frequently asked questions
How many public water systems are in Humboldt County, Iowa?
EPA's SDWIS records file 13 active public water systems under Humboldt County, Iowa: 8 community systems (62%), 1 non-transient non-community systems (7.7%) and 4 transient non-community systems (31%).
Who supplies drinking water in Humboldt County, IA?
The largest community water systems filed under Humboldt County are Humboldt Municipal Water Dept (4,792 people served), Dakota City Water Supply (769 people served) and Livermore Water Supply (383 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 Humboldt County's drinking water come from groundwater or surface water?
Of the 13 active public water systems in Humboldt County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Humboldt Municipal Water Dept, uses groundwater under influence of surface water.
Where can I find a water quality report for Humboldt 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. 8 community systems are filed under Humboldt 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 Humboldt 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 Humboldt County, Iowa”, https://aquacensus.com/water-systems/iowa/humboldt (data as of October 1, 2026).