Aransas County, Missouri — public water systems
At a glance
4 active public water systems are filed under Aransas County, Missouri in EPA's SDWIS records, together reporting 3,825 people served. The largest is Copano Cove Subdivision, which reports serving 1,668 people. All 4 are community water systems serving people where they live.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
4
Population served
3.8K
Community systems
4
Groundwater share
25%
How does Aransas County compare with other Missouri counties?
Aransas County has the 119th-most active public water systems among the 182 counties listed for active Missouri systems in EPA records; among the 132 with 3 or more systems, the median has 13. Its systems report 3,825 people served in total, the 115th-largest county figure in the state and less than 0.1% of the statewide total. The average system here reports serving 956 people, about half of the Missouri average of 2,049. 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 Aransas County's drinking water come from?
By primary water source, Aransas County's active systems draw on purchased surface water (3, 75%) and groundwater (1, 25%). Overall, 25% rely mainly on groundwater (including purchased groundwater) and 75% on surface water, compared with 92% and 8.1% across Missouri. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. The county's largest system, Copano Cove Subdivision, draws primarily on purchased surface water.
What kinds of water systems operate in Aransas County?
Aransas County's active systems break down as 4 community systems (100%). 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. EPA lists their owner types as private (100%).
Water systems in Aransas County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Copano Cove Subdivision | Aransas | 1,668 | Community | Purchased surface water |
| 2 | Aransas Bay Utilities | Aransas | 1,062 | Community | Groundwater |
| 3 | Copano Ridge Subdivision | Aransas | 765 | Community | Purchased surface water |
| 4 | Copano Heights Water | Aransas | 330 | Community | Purchased surface water |
Aransas County water systems: frequently asked questions
How many public water systems are in Aransas County, Missouri?
EPA's SDWIS records file 4 active public water systems under Aransas County, Missouri: 4 community systems (100%).
Who supplies drinking water in Aransas County, MO?
The largest community water systems filed under Aransas County are Copano Cove Subdivision (1,668 people served), Aransas Bay Utilities (1,062 people served) and Copano Ridge Subdivision (765 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 Aransas County's drinking water come from groundwater or surface water?
Of the 4 active public water systems in Aransas County, 25% draw mainly on groundwater and 75% on surface water, counting purchased supplies. The largest system, Copano Cove Subdivision, uses purchased surface water.
Where can I find a water quality report for Aransas 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. 4 community systems are filed under Aransas 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 Aransas 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 Missouri 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 Aransas County, Missouri”, https://aquacensus.com/water-systems/missouri/aransas (data as of October 1, 2026).