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Lorain County, Ohio — public water systems

At a glance

16 active public water systems are filed under Lorain County, Ohio in EPA's SDWIS records, together reporting 329,580 people served. The largest is Rural Lorain Co. Water A, which reports serving 73,125 people. 15 are community water systems serving people where they live; the other 1 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

16

Population served

329.6K

Community systems

15

Groundwater share

6.3%

How does Lorain County compare with other Ohio counties?

Lorain County has the 64th-most active public water systems among the 133 counties listed for active Ohio systems in EPA records; among the 92 with 3 or more systems, the median has 29. Its systems report 329,580 people served in total, the 8th-largest county figure in the state and 3.1% of the statewide total. The average system here reports serving 20,599 people, about 7.4 times the Ohio average of 2,767. 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 Lorain County's drinking water come from?

By primary water source, Lorain County's active systems draw on purchased surface water (10, 63%), surface water (5, 31%) and groundwater (1, 6.3%). Overall, 6.3% rely mainly on groundwater (including purchased groundwater) and 94% on surface water, compared with 92% and 7.6% across Ohio. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. The county's largest system, Rural Lorain Co. Water A, draws primarily on purchased surface water.

What kinds of water systems operate in Lorain County?

Lorain County's active systems break down as 15 community systems (94%) and 1 transient non-community systems (6.3%). 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 local government (75%) and private (25%).

Water systems in Lorain County

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Active public water systems in Lorain County, Ohio
#Water systemCountyPopulation servedTypeSource
1Rural Lorain Co. Water ALorain73,125CommunityPurchased surface water
2Elyria Water DepartmentLorain68,000CommunitySurface water
3Lorain City PwsLorain64,152CommunitySurface water
4North Ridgeville City PwsLorain29,465CommunityPurchased surface water
5Avon City PwsLorain23,800CommunityPurchased surface water
6Avon Lake City PwsLorain23,659CommunitySurface water
7Amherst City PwsLorain11,797CommunityPurchased surface water
8Sheffield Lake City PwsLorain9,108CommunityPurchased surface water
9Oberlin Water DepartmentLorain8,600CommunitySurface water
10Wellington Village PwsLorain4,802CommunitySurface water
11Sheffield Village PwsLorain4,165CommunityPurchased surface water
12Grafton Village PwsLorain2,769CommunityPurchased surface water
13Lagrange Village PwsLorain2,400CommunityPurchased surface water
14South Amherst Village PwsLorain1,688CommunityPurchased surface water
15Pheasant Run Association PwsLorain1,550CommunityPurchased surface water
16Autorama Twin TheaterLorain500Transient non-communityGroundwater

Lorain County water systems: frequently asked questions

How many public water systems are in Lorain County, Ohio?

EPA's SDWIS records file 16 active public water systems under Lorain County, Ohio: 15 community systems (94%) and 1 transient non-community systems (6.3%).

Who supplies drinking water in Lorain County, OH?

The largest community water systems filed under Lorain County are Rural Lorain Co. Water A (73,125 people served), Elyria Water Department (68,000 people served) and Lorain City Pws (64,152 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 Lorain County's drinking water come from groundwater or surface water?

Of the 16 active public water systems in Lorain County, 6.3% draw mainly on groundwater and 94% on surface water, counting purchased supplies. The largest system, Rural Lorain Co. Water A, uses purchased surface water.

Where can I find a water quality report for Lorain 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. 15 community systems are filed under Lorain 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 Lorain 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 Ohio 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 Lorain County, Ohio”, https://aquacensus.com/water-systems/ohio/lorain (data as of October 1, 2026).