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Caldwell Parish County, Louisiana — public water systems

At a glance

11 active public water systems are filed under Caldwell Parish County, Louisiana in EPA's SDWIS records, together reporting 16,233 people served. The largest is Hebert Water System, which reports serving 3,048 people. All 11 are community water systems serving people where they live.

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

Active systems

11

Population served

16.2K

Community systems

11

Groundwater share

100%

How does Caldwell Parish County compare with other Louisiana counties?

Caldwell Parish County has the 37th-most active public water systems among the 79 counties listed for active Louisiana systems in EPA records; among the 59 with 3 or more systems, the median has 13. Its systems report 16,233 people served in total, the 56th-largest county figure in the state and 0.3% of the statewide total. The average system here reports serving 1,476 people, well below the Louisiana average of 4,685. 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 Caldwell Parish County's drinking water come from?

By primary water source, Caldwell Parish County's active systems draw on groundwater (11, 100%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 92% and 7.7% across Louisiana. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Hebert Water System, draws primarily on groundwater.

What kinds of water systems operate in Caldwell Parish County?

Caldwell Parish County's active systems break down as 11 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 (64%) and local government (36%).

Water systems in Caldwell Parish County

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Active public water systems in Caldwell Parish County, Louisiana
#Water systemCountyPopulation servedTypeSource
1Hebert Water SystemCaldwell Parish3,048CommunityGroundwater
2East Columbia Water SystemCaldwell Parish2,829CommunityGroundwater
3Columbia Heights Water DistrictCaldwell Parish1,965CommunityGroundwater
4Village of Grayson Water SystemCaldwell Parish1,461CommunityGroundwater
5Kelly Water DistrictCaldwell Parish1,314CommunityGroundwater
6Holum Water SystemCaldwell Parish1,230CommunityGroundwater
7Wards 4 & 5 Water SystemCaldwell Parish1,002CommunityGroundwater
8Village of Columbia Water SystemCaldwell Parish945CommunityGroundwater
9Town of Clarks Water SystemCaldwell Parish906CommunityGroundwater
10Cotton Plant Water SystemCaldwell Parish783CommunityGroundwater
11Vixen Water SystemCaldwell Parish750CommunityGroundwater

Caldwell Parish County water systems: frequently asked questions

How many public water systems are in Caldwell Parish County, Louisiana?

EPA's SDWIS records file 11 active public water systems under Caldwell Parish County, Louisiana: 11 community systems (100%).

Who supplies drinking water in Caldwell Parish County, LA?

The largest community water systems filed under Caldwell Parish County are Hebert Water System (3,048 people served), East Columbia Water System (2,829 people served) and Columbia Heights Water District (1,965 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 Caldwell Parish County's drinking water come from groundwater or surface water?

Of the 11 active public water systems in Caldwell Parish County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Hebert Water System, uses groundwater.

Where can I find a water quality report for Caldwell Parish 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. 11 community systems are filed under Caldwell Parish 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 Caldwell Parish 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 Louisiana 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 Caldwell Parish County, Louisiana”, https://aquacensus.com/water-systems/louisiana/caldwell-parish (data as of October 1, 2026).